ADC0808 IC: Datasheet, Pinout and Usage

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Published: 18 October 2021 | Last Updated: 18 October 2021

15091

ADC0808CCN

ADC0808CCN

Texas Instruments

8 Bit 2.54mm ADC ADC0808 5V 28-DIP (0.600, 15.24mm)

Purchase Guide

8 Bit 2.54mm ADC ADC0808 5V 28-DIP (0.600, 15.24mm)

The ADC0808 IC is a commonly used ADC module. This article will unlock more details about ADC0808.

This video explains the logic to interface the ADC 0808 with 8051 Microcontroller

Interfacing of ADC0808 with 8051

ADC0808 Pinout

ADC0808 Pinout.jpg

ADC0808 Pinout



Pin NumberPin NameDescription
1 to   5, 27, 28Analog Channel 1 to 5These 7 pins are the input pins for Analog   voltage(sensor)
6STARTThis is an input pin that is made high to   start conversion
7End of Conversion (EOC)This is an output pin that goes high once the   conversion is over
8,14,15,18,19,20,21Output (2-1 to 2-7)Output digital pins which give the result of   the ADC conversion
9OUTENHas to be made high to get output on output   pins
10CLOCKHas to be given clock signals (0V-5V) 20Mhz   approx.
11VccPowers the IC typically with 5V
12V ref(+)Reference voltage pin, typically +5V is used   normally
13GroundConnect to the ground of the circuit
16Vref(-)Vref is connected to the ground normally
22Address Latch Enable(ALE)This pin is should be temporarily made high to   select the ADC channel
23,24,25ADD A, ADD B, ADD CThese three pins are used to select the   channel

Pin Description



ADC0808 CAD Model

Symbol

ADC0808 Symbol.jpg

ADC0808 Symbol

Footprint

ADC0808 Footprint.jpg

ADC0808 Footprint

3D Model

ADC0808 3D Model.jpg

ADC0808 3D Model

ADC0808 Description

The ADC0808 IC is a typical ADC module for projects that require an external ADC. It's a 28-pin 8-bit ADC module with eight channels. It can measure up to eight ADC values from 0 to 5V, with a precision of 19.53mV when the voltage reference (Vref –pin 9) is +5V. (Step size).


Specifications

Texas Instruments ADC0808CCN technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments ADC0808CCN.
  • Type
    Parameter
  • Mount

    In electronic components, the term "Mount" typically refers to the method or process of physically attaching or fixing a component onto a circuit board or other electronic device. This can involve soldering, adhesive bonding, or other techniques to secure the component in place. The mounting process is crucial for ensuring proper electrical connections and mechanical stability within the electronic system. Different components may have specific mounting requirements based on their size, shape, and function, and manufacturers provide guidelines for proper mounting procedures to ensure optimal performance and reliability of the electronic device.

    Through Hole
  • Mounting Type

    The "Mounting Type" in electronic components refers to the method used to attach or connect a component to a circuit board or other substrate, such as through-hole, surface-mount, or panel mount.

    Through Hole
  • Package / Case

    refers to the protective housing that encases an electronic component, providing mechanical support, electrical connections, and thermal management.

    28-DIP (0.600, 15.24mm)
  • Number of Pins
    28
  • Number of Elements
    1
  • Operating Temperature

    The operating temperature is the range of ambient temperature within which a power supply, or any other electrical equipment, operate in. This ranges from a minimum operating temperature, to a peak or maximum operating temperature, outside which, the power supply may fail.

    -40°C~85°C
  • Packaging

    Semiconductor package is a carrier / shell used to contain and cover one or more semiconductor components or integrated circuits. The material of the shell can be metal, plastic, glass or ceramic.

    Tube
  • JESD-609 Code

    The "JESD-609 Code" in electronic components refers to a standardized marking code that indicates the lead-free solder composition and finish of electronic components for compliance with environmental regulations.

    e0
  • Part Status

    Parts can have many statuses as they progress through the configuration, analysis, review, and approval stages.

    Obsolete
  • Moisture Sensitivity Level (MSL)

    Moisture Sensitivity Level (MSL) is a standardized rating that indicates the susceptibility of electronic components, particularly semiconductors, to moisture-induced damage during storage and the soldering process, defining the allowable exposure time to ambient conditions before they require special handling or baking to prevent failures

    1 (Unlimited)
  • Number of Terminations
    28
  • ECCN Code

    An ECCN (Export Control Classification Number) is an alphanumeric code used by the U.S. Bureau of Industry and Security to identify and categorize electronic components and other dual-use items that may require an export license based on their technical characteristics and potential for military use.

    EAR99
  • Terminal Finish

    Terminal Finish refers to the surface treatment applied to the terminals or leads of electronic components to enhance their performance and longevity. It can improve solderability, corrosion resistance, and overall reliability of the connection in electronic assemblies. Common finishes include nickel, gold, and tin, each possessing distinct properties suitable for various applications. The choice of terminal finish can significantly impact the durability and effectiveness of electronic devices.

    Tin/Lead (Sn/Pb)
  • Max Power Dissipation

    The maximum power that the MOSFET can dissipate continuously under the specified thermal conditions.

    875mW
  • Terminal Position

    In electronic components, the term "Terminal Position" refers to the physical location of the connection points on the component where external electrical connections can be made. These connection points, known as terminals, are typically used to attach wires, leads, or other components to the main body of the electronic component. The terminal position is important for ensuring proper connectivity and functionality of the component within a circuit. It is often specified in technical datasheets or component specifications to help designers and engineers understand how to properly integrate the component into their circuit designs.

    DUAL
  • Number of Functions
    1
  • Supply Voltage

    Supply voltage refers to the electrical potential difference provided to an electronic component or circuit. It is crucial for the proper operation of devices, as it powers their functions and determines performance characteristics. The supply voltage must be within specified limits to ensure reliability and prevent damage to components. Different electronic devices have specific supply voltage requirements, which can vary widely depending on their design and intended application.

    5V
  • Terminal Pitch

    The center distance from one pole to the next.

    2.54mm
  • Base Part Number

    The "Base Part Number" (BPN) in electronic components serves a similar purpose to the "Base Product Number." It refers to the primary identifier for a component that captures the essential characteristics shared by a group of similar components. The BPN provides a fundamental way to reference a family or series of components without specifying all the variations and specific details.

    ADC0808
  • Pin Count

    a count of all of the component leads (or pins)

    28
  • Operating Supply Voltage

    The voltage level by which an electrical system is designated and to which certain operating characteristics of the system are related.

    5V
  • Polarity

    In electronic components, polarity refers to the orientation or direction in which the component must be connected in a circuit to function properly. Components such as diodes, capacitors, and LEDs have polarity markings to indicate which terminal should be connected to the positive or negative side of the circuit. Connecting a component with incorrect polarity can lead to malfunction or damage. It is important to pay attention to polarity markings and follow the manufacturer's instructions to ensure proper operation of electronic components.

    Unipolar
  • Power Supplies

    an electronic circuit that converts the voltage of an alternating current (AC) into a direct current (DC) voltage.?

    5V
  • Configuration

    The parameter "Configuration" in electronic components refers to the specific arrangement or setup of the components within a circuit or system. It encompasses how individual elements are interconnected and their physical layout. Configuration can affect the functionality, performance, and efficiency of the electronic system, and may influence factors such as signal flow, impedance, and power distribution. Understanding the configuration is essential for design, troubleshooting, and optimizing electronic devices.

    MUX-S/H-ADC
  • Number of Channels
    8
  • Max Supply Voltage

    In general, the absolute maximum common-mode voltage is VEE-0.3V and VCC+0.3V, but for products without a protection element at the VCC side, voltages up to the absolute maximum rated supply voltage (i.e. VEE+36V) can be supplied, regardless of supply voltage.

    6V
  • Min Supply Voltage

    The minimum supply voltage (V min ) is explored for sequential logic circuits by statistically simulating the impact of within-die process variations and gate-dielectric soft breakdown on data retention and hold time.

    4.5V
  • Nominal Supply Current

    Nominal current is the same as the rated current. It is the current drawn by the motor while delivering rated mechanical output at its shaft.

    300μA
  • Power Dissipation

    the process by which an electronic or electrical device produces heat (energy loss or waste) as an undesirable derivative of its primary action.

    875mW
  • Number of Bits
    8
  • Input Type

    Input type in electronic components refers to the classification of the signal or data that a component can accept for processing or conversion. It indicates whether the input is analog, digital, or a specific format such as TTL or CMOS. Understanding input type is crucial for ensuring compatibility between different electronic devices and circuits, as it determines how signals are interpreted and interacted with.

    Single Ended
  • Architecture

    In electronic components, the parameter "Architecture" refers to the overall design and structure of the component. It encompasses the arrangement of internal components, the layout of circuitry, and the physical form of the component. The architecture of an electronic component plays a crucial role in determining its functionality, performance, and compatibility with other components in a system. Different architectures can result in variations in power consumption, speed, size, and other key characteristics of the component. Designers often consider the architecture of electronic components carefully to ensure optimal performance and integration within a larger system.

    SAR
  • Converter Type

    The parameter "Converter Type" in electronic components refers to the classification of devices that convert one form of energy or signal to another. This includes devices such as analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and various types of signal converters used in communication, power management, and measurement systems. Each converter type is designed to facilitate the manipulation or transformation of signals to meet specific application requirements. The choice of converter type typically depends on factors such as the signal characteristics, required accuracy, and conversion speed.

    ADC, SUCCESSIVE APPROXIMATION
  • Supply Type

    Supply Type in electronic components refers to the classification of power sources used to operate the component. It indicates whether the component requires DC or AC power, and if DC, specifies the voltage levels such as low, medium, or high. Different supply types can affect the performance, compatibility, and application of the component in electronic circuits. Understanding the supply type is crucial for proper component selection and integration into electronic designs.

    Single
  • Reference Type

    a code object that is not stored directly where it is created, but that acts as a kind of pointer to a value stored elsewhere.

    External
  • Data Interface

    A Data Interface in EDQ is a template of a set of attributes representing a given entity, used to create processes that read from, or write to, interfaces rather than directly from or to sources or targets of data.

    Parallel
  • Resolution

    Resolution in electronic components refers to the smallest increment of measurement or change that can be detected or represented by the component. It is a crucial specification in devices such as sensors, displays, and converters, as it determines the level of detail or accuracy that can be achieved. For example, in a digital camera, resolution refers to the number of pixels that make up an image, with higher resolution indicating a greater level of detail. In analog-to-digital converters, resolution is the number of discrete values that can be represented in the digital output, determining the precision of the conversion process. Overall, resolution plays a significant role in determining the performance and capabilities of electronic components in various applications.

    1 B
  • Sampling Rate

    often described in the context of signal processing as the number of samples per time.

    10 ksps
  • Voltage - Supply, Analog

    Voltage - Supply, Analog is a parameter in electronic components that specifies the range of voltage levels required to power the analog circuitry within the component. This parameter indicates the minimum and maximum voltage levels that the component can accept for proper operation of its analog functions. It is crucial to ensure that the voltage supplied to the component falls within this specified range to prevent damage and ensure optimal performance. Understanding and adhering to the "Voltage - Supply, Analog" parameter is essential for the proper functioning of analog circuits in electronic components.

    4.5V~6.5V
  • Voltage - Supply, Digital

    Voltage - Supply, Digital is a parameter that specifies the voltage level required to power the digital circuitry within an electronic component, such as an integrated circuit or a microcontroller. This parameter is crucial for ensuring proper operation of the digital components, as supplying the correct voltage level is essential for reliable performance. The specified voltage range typically includes both minimum and maximum values within which the component can operate safely and efficiently. It is important to adhere to the recommended voltage supply range to prevent damage to the component and to maintain the integrity of the digital signals being processed.

    4.5V~6.5V
  • Number of Analog In Channels
    8
  • Sampling Rate (Per Second)

    The sampling rate (per second) in electronic components refers to the frequency at which an analog signal is measured or sampled to convert it into a digital signal. It is typically expressed in Hertz (Hz) and indicates how many times per second the analog signal is sampled. A higher sampling rate allows for better representation of the original signal, capturing more detail and reducing distortion during the conversion process. In audio applications, for example, common sampling rates include 44.1 kHz for CD-quality audio and 48 kHz for video production.

    10k
  • Output Bit Code

    Output Bit Code refers to the digital representation of the output signal of an electronic component, typically in binary form. It indicates the specific combination of bits that represent the output value of the component. The output bit code is crucial for interpreting and processing the output data accurately in digital systems. By understanding the output bit code, engineers can design appropriate circuits and algorithms to manipulate and utilize the output information effectively.

    BINARY
  • Power Consumption

    Power consumption is the amount of input energy (measured in watts) required for an electrical appliance to function. This is opposed to power output which is a measure of the level of performance, of a heat pump for example.

    1.5mW
  • Sample and Hold / Track and Hold

    "Sample and Hold" and "Track and Hold" are two related functions commonly found in electronic components such as analog-to-digital converters (ADCs) and signal processing circuits. In a Sample and Hold circuit, the input signal is sampled at specific intervals and held constant until the next sampling period. This allows the circuit to capture and store the input signal's value for further processing or conversion.On the other hand, a Track and Hold circuit continuously tracks the input signal's value and holds it steady when required, typically during the conversion process. This ensures that the input signal remains constant and accurate during the conversion process.Both functions are essential in maintaining the integrity and accuracy of analog signals in digital systems, allowing for precise measurements and processing of signals in various electronic applications.

    SAMPLE
  • Number of A/D Converters
    1
  • Conversion Rate

    the number of conversions divided by the total number of visitors.

    10 ksps
  • Ratio - S/H:ADC

    The parameter "Ratio - S/H:ADC" in electronic components refers to the ratio between the sample and hold (S/H) circuit and the analog-to-digital converter (ADC) in a system. The sample and hold circuit is responsible for capturing and holding the input signal at a specific moment in time, while the ADC converts this analog signal into a digital format for processing. The ratio between the S/H and ADC components is important as it determines the accuracy and speed of the analog-to-digital conversion process. A higher ratio typically indicates a more precise and efficient conversion process, leading to better overall performance of the electronic system. Engineers often consider this parameter when designing and optimizing electronic circuits to ensure reliable and high-quality signal processing.

    1:1
  • Height
    3.81mm
  • Length
    36.83mm
  • Width
    13.72mm
  • REACH SVHC

    The parameter "REACH SVHC" in electronic components refers to the compliance with the Registration, Evaluation, Authorization, and Restriction of Chemicals (REACH) regulation regarding Substances of Very High Concern (SVHC). SVHCs are substances that may have serious effects on human health or the environment, and their use is regulated under REACH to ensure their safe handling and minimize their impact.Manufacturers of electronic components need to declare if their products contain any SVHCs above a certain threshold concentration and provide information on the safe use of these substances. This information allows customers to make informed decisions about the potential risks associated with using the components and take appropriate measures to mitigate any hazards.Ensuring compliance with REACH SVHC requirements is essential for electronics manufacturers to meet regulatory standards, protect human health and the environment, and maintain transparency in their supply chain. It also demonstrates a commitment to sustainability and responsible manufacturing practices in the electronics industry.

    No SVHC
  • Radiation Hardening

    Radiation hardening is the process of making electronic components and circuits resistant to damage or malfunction caused by high levels of ionizing radiation, especially for environments in outer space (especially beyond the low Earth orbit), around nuclear reactors and particle accelerators, or during nuclear accidents or nuclear warfare.

    No
  • RoHS Status

    RoHS means “Restriction of Certain Hazardous Substances” in the “Hazardous Substances Directive” in electrical and electronic equipment.

    Non-RoHS Compliant
  • Lead Free

    Lead Free is a term used to describe electronic components that do not contain lead as part of their composition. Lead is a toxic material that can have harmful effects on human health and the environment, so the electronics industry has been moving towards lead-free components to reduce these risks. Lead-free components are typically made using alternative materials such as silver, copper, and tin. Manufacturers must comply with regulations such as the Restriction of Hazardous Substances (RoHS) directive to ensure that their products are lead-free and environmentally friendly.

    Contains Lead
0 Similar Products Remaining

Parts with Similar Specs

The three parts on the right have similar specifications to Texas Instruments & ADC0808CCN.

ADC0808 Features

  • Easy to interface with all Microprocessors or works Standalone.

  • The eight-channel 8-bit ADC module

  • Can measure up to 8 Analog values seamlessly

  • On-chip Clock not available, external Oscillator is needed (Clock)

  • The digital output varies from 0 to 255, Operating power is 15mW, conversion time 100us

  • When Vref = 5V, for every 19.53mV of analogue value there will be the rise of one bit on the digital side (Step size)

  • Available in 28-pin PDIP, SOIC packages


ADC0808 Application

  • Operates With Any 8-Bit (µP) Processors or as a Stand-Alone Device

  • Can measure up to eight-channel hence can be used for complex projects

  • Available in smaller packages for its performance, hence used in portable electronics.

  • Widely used with Raspberry Pi, Beagle Bone and other MPU development platforms

  • Interface to Temp Sensors, Voltage Sources, and Transducers


ADC0808 Equivalent

ADC0804, ADC modules


ADC0808 Block Diagram

ADC0808 Block Diagram.jpg

ADC0808 Block Diagram

Where to use ADC0808

The ADC0808 IC is a typical ADC module for projects that require an external ADC. It's a 28-pin 8-bit ADC module with eight channels. It can measure up to eight ADC values from 0 to 5V, with a precision of 19.53mV when the voltage reference (Vref –pin 9) is +5V. (Step size). That is, for every 19.53mV rise on the input side, the output side will increase by one bit.

This IC is ideal for usage with microprocessors such as the Raspberry Pi, Beaglebone, and other similar devices. Alternatively, it can be used as a stand-alone ADC module. Every ADC module needs a clock to work, and this IC needs an external clock pulse to function. 

How to use ADC0808

Because the ADC0808 IC can measure up to eight analogue voltages and lacks an inbuilt clock, it requires somewhat more components to function than its predecessor, the ADC0804. +5V can be used to power the IC. To obtain the output, the Vref + and the Output enable should both be powered up to +5V. When the V ref + is powered with +5V, the IC will operate with a step size of 19.53mV. The external clock, which can be an oscillator circuit or a pulse generated by an MCU/MPU, should be linked to the clock pin.

Pins IN1 to IN7 can receive the correct analogue voltage, however, the IC can only read the voltage of one channel at a time. The pins ADD A, ADD B and ADD C can be used to select the channel. To access the relevant analogue channel, these three bits must be set as given in the table below. Once the channel has been established, it should be activated by briefly driving the Address latch enabled (ALE) pin high.

ADC0808-Analog Channel Selection.jpg

ADC0808-Analog Channel Selection

The analogue voltage should be connected to the V in(+) pin, and the digital output will be produced from pins 2-1 (OUT 1) to 2-8 (OUT 8) as illustrated in the diagram. For the ADC conversion to work, another end of the voltage source (sensor/module) must also be grounded to the circuit. Now, in order for the ADC conversion to begin, we must set the START pin to high as soon as the EOC pin is set to high. This can be accomplished either through programming or by connecting the EOC pin to the START pin as seen in the circuit below.

How to use ADC0808.jpg

How to use ADC0808


ADC0808 Package

ADC0808 Package.jpg

ADC0808 Package

ADC0808 Manufacturer

Texas Instruments (TI) emerges as a globally recognized semiconductor manufacturer expanded into 35 countries. It has seen rapid growth. In 1958, TIer firstly introduced the working integrated circuit. And today more than 30,000 TIers worldwide are committed to designing, manufacturing, and selling analogue and embedded processing chips. They aspire to solve challenges as well as change the world through their technologies.

Datasheet PDF

Download datasheets and manufacturer documentation for Texas Instruments ADC0808CCN.

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Frequently Asked Questions

What is the conversion time in ADC0808?

• Conversion Time: 100 μs
These features make this device ideally suited to applications from the process and machine control to consumer and automotive applications.

What type of signal ADC 0808 is required on SOC pin?

The ADC 0808 IC requires a clock signal of typically 550 kHz, ADC0808 is used to convert the data into digital form required for the microcontroller.

How many analogue values ADC0808 can read?

ADC0808 is an 8 bit analogue to digital converter with eight input analogue channels, i.e., it can take eight different analogue inputs. The input which is to be converted to digital form can be selected by using three address lines. The voltage reference can be set using the Vref+ and Vref- pins.

What is adc0808 data acquisition component?

The ADC0808 data acquisition component is a monolithic CMOS device with an 8-bit analogue-to-digital converter, 8-channel multiplexer and microprocessor compatible control logic. The 8-bit A/D converter uses successive approximation as the conversion technique.

How does adc0808 work?

ADC0808 is an 8 bit analogue to digital converter with eight input analogue channels, i.e., it can take eight different analogue inputs. The input which is to be converted to digital form can be selected by using three address lines. The voltage reference can be set using the Vref+ and Vref- pins.

Why we are using ADC for 8051 microcontroller?

Some microcontrollers have built-in analogue-digital Converter (ADC) so there is no need for external ADC. For microcontrollers that don’t have internal ADC external ADC is used. Why we are using ADC for the 8051 Microcontroller? Well. 8051 doesn’t have an inbuilt ADC. So we have to use an external ADC. There are many ADCs available.
ADC0808CCN

Texas Instruments

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