STMicroelectronics LM2903WDT
STMicroelectronics LM2903WDT
LM2903W  Pinout Diagram_1
LM2903W Outline Dimensions_1
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STMicroelectronics LM2903WDT

Linear Comparators Tape & Reel (TR) 20mA mA 1.3 μs μs Linear Comparators 106.02dB dB

Manufacturer No:

LM2903WDT

Manufacturer:

STMicroelectronics

Utmel No:

2381-LM2903WDT

Package:

8-SOIC (0.154, 3.90mm Width)

Datasheet:

LM2903W

ECAD Model:

Description:

Surface Mount Tape & Reel (TR) 20mA mA 1.3 μs μs Linear Comparators 106.02dB dB 250nA pA 2.5mA μA 7mV mV Surface Mount

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LM2903WDT information

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STMicroelectronics LM2903WDT technical specifications, attributes, parameters and parts with similar specifications to STMicroelectronics LM2903WDT.
  • Type
    Parameter
  • Lifecycle Status

    Lifecycle Status refers to the current stage of an electronic component in its product life cycle, indicating whether it is active, obsolete, or transitioning between these states. An active status means the component is in production and available for purchase. An obsolete status indicates that the component is no longer being manufactured or supported, and manufacturers typically provide a limited time frame for support. Understanding the lifecycle status is crucial for design engineers to ensure continuity and reliability in their projects.

    ACTIVE (Last Updated: 7 months ago)
  • Factory Lead Time
    10 Weeks
  • 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.

    Surface Mount
  • 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.

    Surface Mount
  • Package / Case

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

    8-SOIC (0.154, 3.90mm Width)
  • Number of Pins
    8
  • Number of Elements
    2
  • 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~125°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.

    Tape & Reel (TR)
  • Part Status

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

    Active
  • 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
    8
  • 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
  • Type
    Differential
  • 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
  • Terminal Form

    Occurring at or forming the end of a series, succession, or the like; closing; concluding.

    GULL WING
  • Number of Functions
    2
  • 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
  • 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.

    LM2903
  • Pin Count

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

    8
  • Output Type

    The "Output Type" parameter in electronic components refers to the type of signal or data that is produced by the component as an output. This parameter specifies the nature of the output signal, such as analog or digital, and can also include details about the voltage levels, current levels, frequency, and other characteristics of the output signal. Understanding the output type of a component is crucial for ensuring compatibility with other components in a circuit or system, as well as for determining how the output signal can be utilized or processed further. In summary, the output type parameter provides essential information about the nature of the signal that is generated by the electronic component as its output.

    CMOS, DTL, ECL, Open-Collector, TTL
  • Power Supplies

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

    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.

    2.5mA
  • Output Current

    The rated output current is the maximum load current that a power supply can provide at a specified ambient temperature. A power supply can never provide more current that it's rated output current unless there is a fault, such as short circuit at the load.

    20mA
  • Max Supply Current

    Max Supply Current refers to the maximum amount of electrical current that a component can draw from its power supply under normal operating conditions. It is a critical parameter that ensures the component operates reliably without exceeding its thermal limits or damaging internal circuitry. Exceeding this current can lead to overheating, performance degradation, or failure of the component. Understanding this parameter is essential for designing circuits that provide adequate power while avoiding overload situations.

    2.5mA
  • Quiescent Current

    The quiescent current is defined as the current level in the amplifier when it is producing an output of zero.

    2.5mA
  • Response Time

    the time taken for a circuit or measuring device, when subjected to a change in input signal, to change its state by a specified fraction of its total response to that change.

    1.3 μs
  • Voltage - Supply, Single/Dual (±)

    The parameter "Voltage - Supply, Single/Dual (±)" in electronic components refers to the power supply voltage required for the proper operation of the component. This parameter indicates whether the component requires a single power supply voltage (e.g., 5V) or a dual power supply voltage (e.g., ±15V). For components that require a single power supply voltage, only one voltage level is needed for operation. On the other hand, components that require a dual power supply voltage need both positive and negative voltage levels to function correctly.Understanding the voltage supply requirements of electronic components is crucial for designing and integrating them into circuits to ensure proper functionality and prevent damage due to incorrect voltage levels.

    2V~36V ±1V~18V
  • Output Current per Channel

    Output Current per Channel is a specification commonly found in electronic components such as amplifiers, audio interfaces, and power supplies. It refers to the maximum amount of electrical current that can be delivered by each individual output channel of the component. This parameter is important because it determines the capacity of the component to drive connected devices or loads. A higher output current per channel means the component can deliver more power to connected devices, while a lower output current may limit the performance or functionality of the component in certain applications. It is crucial to consider the output current per channel when selecting electronic components to ensure they can meet the power requirements of the intended system or setup.

    100pA
  • Input Offset Voltage (Vos)

    Input Offset Voltage (Vos) is a key parameter in electronic components, particularly in operational amplifiers. It refers to the voltage difference that must be applied between the two input terminals of the amplifier to nullify the output voltage when the input terminals are shorted together. In simpler terms, it represents the voltage required to bring the output of the amplifier to zero when there is no input signal present. Vos is an important parameter as it can introduce errors in the output signal of the amplifier, especially in precision applications where accuracy is crucial. Minimizing Vos is essential to ensure the amplifier operates with high precision and accuracy.

    7mV
  • Voltage Gain

    Voltage gain is a measure of how much an electronic component or circuit amplifies an input voltage signal to produce an output voltage signal. It is typically expressed as a ratio or in decibels (dB). A higher voltage gain indicates a greater amplification of the input signal. Voltage gain is an important parameter in amplifiers, where it determines the level of amplification provided by the circuit. It is calculated by dividing the output voltage by the input voltage and is a key factor in determining the overall performance and functionality of electronic devices.

    106.02dB
  • Average Bias Current-Max (IIB)

    The parameter "Average Bias Current-Max (IIB)" in electronic components refers to the maximum average bias current that the component can handle without exceeding its specified operating limits. Bias current is the current that flows through a component when it is in its quiescent state or when it is not actively processing a signal. Exceeding the maximum average bias current can lead to overheating, reduced performance, or even damage to the component. Therefore, it is important to ensure that the bias current does not exceed the specified maximum value to maintain the reliability and longevity of the electronic component.

    0.4μA
  • Supply Voltage Limit-Max

    The parameter "Supply Voltage Limit-Max" in electronic components refers to the maximum voltage that the component can safely handle without getting damaged. This specification is crucial for ensuring the reliable operation and longevity of the component within a given electrical system. Exceeding the maximum supply voltage limit can lead to overheating, electrical breakdown, or permanent damage to the component. It is important to carefully adhere to this limit when designing and operating electronic circuits to prevent potential failures and ensure the overall system's performance and safety.

    36V
  • Max Input Current

    Max Input Current is a parameter that specifies the maximum amount of electrical current that can safely flow into an electronic component without causing damage. It is an important consideration when designing or using electronic circuits to ensure that the component operates within its specified limits. Exceeding the maximum input current can lead to overheating, component failure, or even pose safety risks. Manufacturers provide this parameter in datasheets to help engineers and users understand the limitations of the component and ensure proper operation within the specified parameters.

    250nA
  • Input Bias Current

    Input Bias Current refers to the small amount of current that flows into the input terminals of an electronic component, such as an operational amplifier. It is primarily caused by the input impedance of the device and the characteristics of the transistors within it. This current is crucial in determining the accuracy of the analog signal processing, as it can affect the level of voltage offset and signal integrity in the application. In many precise applications, minimizing input bias current is essential to achieve optimal performance.

    250nA
  • Voltage - Input Offset (Max)

    Voltage - Input Offset (Max) is a parameter that refers to the maximum allowable difference in input voltage between two input terminals of an electronic component, such as an operational amplifier, before the output voltage deviates from the expected value. This parameter is crucial in precision applications where accurate voltage amplification or signal processing is required. A higher value for the input offset voltage indicates a greater potential for error in the output signal, so minimizing this parameter is important for maintaining the accuracy and reliability of the component's performance. Designers often take this parameter into consideration when selecting components for circuits that require precise voltage control and signal processing.

    7mV @ 30V
  • Current - Input Bias (Max)

    The parameter "Current - Input Bias (Max)" in electronic components refers to the maximum amount of input bias current that can flow into the input terminal of the component without causing any adverse effects on its performance. Input bias current is the small amount of current that flows into the input terminal of an electronic component, such as an operational amplifier, transistor, or integrated circuit, even when no input signal is applied. This parameter is important because excessive input bias current can lead to errors in the output signal and affect the overall performance of the component. Manufacturers specify a maximum value for input bias current to ensure proper operation and reliability of the component in various applications. It is crucial for designers and engineers to consider this parameter when selecting components for their circuits to ensure optimal performance and functionality.

    0.25μA @ 5V
  • Length
    4.9mm
  • Height Seated (Max)

    Height Seated (Max) is a parameter in electronic components that refers to the maximum allowable height of the component when it is properly seated or installed on a circuit board or within an enclosure. This specification is crucial for ensuring proper fit and alignment within the overall system design. Exceeding the maximum seated height can lead to mechanical interference, electrical shorts, or other issues that may impact the performance and reliability of the electronic device. Manufacturers provide this information to help designers and engineers select components that will fit within the designated space and function correctly in the intended application.

    1.75mm
  • Width
    3.9mm
  • 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.

    ROHS3 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.

    Lead Free
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Download datasheets and manufacturer documentation for STMicroelectronics LM2903WDT.

Product Description: LM2903WDT Comparator IC by STMicroelectronics

1. Description

The LM2903WDT is a high-performance, dual comparator integrated circuit (IC) designed by STMicroelectronics. This device is part of the LM2903 family, known for its excellent input bias current and low input offset voltage, making it ideal for a wide range of applications requiring precise voltage comparisons. The LM2903WDT is available in an 8-pin SOIC package, ensuring compactness and ease of integration into various electronic systems.

2. Features

  • Low Input Bias Current: The LM2903WDT boasts an input bias current as low as 250 nA, reducing the impact of external noise and improving overall system accuracy.
  • Low Input Offset Voltage: With an input offset voltage of 7 mV, this IC ensures reliable and consistent performance in voltage comparison applications.
  • High Output Current: The device can handle up to 20 mA of output current per channel, making it suitable for driving a variety of loads.
  • Wide Operating Temperature Range: The LM2903WDT operates effectively between -40°C and 125°C, allowing it to be used in harsh environments.
  • Low Quiescent Current: The nominal supply current is 2.5 mA, which is relatively low compared to other comparators in its class, reducing power consumption and heat generation.
  • High Voltage Gain: The voltage gain is 106.02 dB, ensuring accurate and robust signal processing capabilities.
  • Lead-Free and RoHS3 Compliant: The device is manufactured using lead-free processes and complies with ROHS3 standards, ensuring environmental sustainability.

3. Applications

The LM2903WDT is versatile and can be used in various applications including: - Primary Applications: - Voltage comparators in industrial control systems. - Medical devices requiring precise signal processing. - Automotive systems where reliability and accuracy are crucial.

  • Secondary Applications:
  • Audio and video equipment for noise reduction or signal conditioning.
  • Data acquisition systems where high accuracy is necessary.
  • Consumer electronics requiring low-power yet reliable voltage comparisons.

4. Alternative Parts

Alternative parts to the LM2903WDT include: - LM2903: The base part number which shares similar specifications but may have different packaging or lead times. - Other Comparator ICs from STMicroelectronics: Such as the LM339 or LM324, which offer similar functionality but with different pin configurations or additional features.

5. Embedded Modules

The LM2903WDT is commonly used in various embedded modules including: - Microcontroller Boards: Many microcontroller boards such as Arduino or Raspberry Pi use comparators like the LM2903WDT for sensor interfacing and voltage regulation. - Industrial Control Systems: In PLCs (Programmable Logic Controllers) where precise voltage comparisons are essential for control logic decisions. - Medical Devices: In devices like ECG machines where accurate heart rate monitoring is critical.

In summary, the LM2903WDT offers an excellent combination of low noise, high accuracy, and low power consumption making it an ideal choice for a wide range of applications requiring precise voltage comparisons.

The three parts on the right have similar specifications to STMicroelectronics & LM2903WDT.
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