AD8421 Amplifier：Pinout, Datasheet, Schematic

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.

Contact plating (finish) provides corrosion protection for base metals and optimizes the mechanical and electrical properties of the contact interfaces.

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.

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.

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

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.

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.

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.

The "Pbfree Code" parameter in electronic components refers to the code or marking used to indicate that the component is lead-free. Lead (Pb) is a toxic substance that has been widely used in electronic components for many years, but due to environmental concerns, there has been a shift towards lead-free alternatives. The Pbfree Code helps manufacturers and users easily identify components that do not contain lead, ensuring compliance with regulations and promoting environmentally friendly practices. It is important to pay attention to the Pbfree Code when selecting electronic components to ensure they meet the necessary requirements for lead-free applications.

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

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

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.

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.

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

Peak Reflow Temperature (Cel) is a parameter that specifies the maximum temperature at which an electronic component can be exposed during the reflow soldering process. Reflow soldering is a common method used to attach electronic components to a circuit board. The Peak Reflow Temperature is crucial because it ensures that the component is not damaged or degraded during the soldering process. Exceeding the specified Peak Reflow Temperature can lead to issues such as component failure, reduced performance, or even permanent damage to the component. It is important for manufacturers and assemblers to adhere to the recommended Peak Reflow Temperature to ensure the reliability and functionality of the electronic components.

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.

Time@Peak Reflow Temperature-Max (s) refers to the maximum duration that an electronic component can be exposed to the peak reflow temperature during the soldering process, which is crucial for ensuring reliable solder joint formation without damaging the component.

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.

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

An indicator of formal certification of qualifications.

Operating Supply Current, also known as supply current or quiescent current, is a crucial parameter in electronic components that indicates the amount of current required for the device to operate under normal conditions. It represents the current drawn by the component from the power supply while it is functioning. This parameter is important for determining the power consumption of the component and is typically specified in datasheets to help designers calculate the overall power requirements of their circuits. Understanding the operating supply current is essential for ensuring proper functionality and efficiency of electronic systems.

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.

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.

the maximum rate of output voltage change per unit time.

Amplifier Type refers to the classification or categorization of amplifiers based on their design, functionality, and characteristics. Amplifiers are electronic devices that increase the amplitude of a signal, such as voltage or current. The type of amplifier determines its specific application, performance capabilities, and operating characteristics. Common types of amplifiers include operational amplifiers (op-amps), power amplifiers, audio amplifiers, and radio frequency (RF) amplifiers. Understanding the amplifier type is crucial for selecting the right component for a particular circuit or system design.

Common Mode Rejection Ratio (CMRR) is a measure of the ability of a differential amplifier to reject input signals that are common to both input terminals. It is defined as the ratio of the differential gain to the common mode gain. A high CMRR indicates that the amplifier can effectively eliminate noise and interference that affects both inputs simultaneously, enhancing the fidelity of the amplified signal. CMRR is typically expressed in decibels (dB), with higher values representing better performance in rejecting common mode signals.

The parameter "Current - Input Bias" in electronic components refers to the amount of current required at the input terminal of a device to maintain proper operation. It is a crucial specification as it determines the minimum input current needed for the component to function correctly. Input bias current can affect the performance and accuracy of the device, especially in precision applications where small signal levels are involved. It is typically specified in datasheets for operational amplifiers, transistors, and other semiconductor devices to provide users with important information for circuit design and analysis.

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.

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.

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.

The gain–bandwidth product (designated as GBWP, GBW, GBP, or GB) for an amplifier is the product of the amplifier's bandwidth and the gain at which the bandwidth is measured.

The parameter "Neg Supply Voltage-Nom (Vsup)" in electronic components refers to the nominal negative supply voltage that the component requires to operate within its specified performance characteristics. This parameter indicates the minimum voltage level that must be provided to the component's negative supply pin for proper functionality. It is important to ensure that the negative supply voltage provided to the component does not exceed the maximum specified value to prevent damage or malfunction. Understanding and adhering to the specified negative supply voltage requirements is crucial for the reliable operation of the electronic component in a circuit.

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.

Power Supply Rejection Ratio (PSRR) is a measure of how well an electronic component, such as an operational amplifier or voltage regulator, can reject changes in its supply voltage. It indicates the ability of the component to maintain a stable output voltage despite fluctuations in the input supply voltage. A higher PSRR value signifies better performance in rejecting noise and variations from the power supply, leading to improved signal integrity and more reliable operation in electronic circuits. PSRR is typically expressed in decibels (dB).

Voltage - Input Offset is a parameter that refers to the difference in voltage between the input terminals of an electronic component, such as an operational amplifier, when the input voltage is zero. It is an important characteristic that can affect the accuracy and performance of the component in various applications. A low input offset voltage is desirable as it indicates that the component will have minimal error in its output when the input signal is near zero. Manufacturers typically provide this specification in the component's datasheet to help users understand the component's behavior and make informed decisions when designing circuits.

The "-3dB bandwidth" of an electronic component refers to the frequency range over which the component's output signal power is reduced by 3 decibels (dB) compared to its maximum output power. This parameter is commonly used to describe the frequency response of components such as amplifiers, filters, and other signal processing devices. The -3dB point is significant because it represents the half-power point, where the output signal power is reduced to half of its maximum value. Understanding the -3dB bandwidth is important for designing and analyzing electronic circuits to ensure that signals are accurately processed within the desired frequency range.

Input Offset Current-Max (IIO) is a parameter that describes the maximum difference in input bias currents between two input terminals of an electronic component, such as an operational amplifier. Input offset current can cause errors in the output of the component, especially in precision applications where accuracy is crucial. The IIO specification provides a limit on the maximum allowable difference in input currents to ensure that the component operates within its specified performance range. Designers need to consider the IIO value when selecting components and designing circuits to minimize errors and ensure reliable operation.

Max Junction Temperature (Tj) refers to the maximum allowable temperature at the junction of a semiconductor device, such as a transistor or integrated circuit. It is a critical parameter that influences the performance, reliability, and lifespan of the component. Exceeding this temperature can lead to thermal runaway, breakdown, or permanent damage to the device. Proper thermal management is essential to ensure the junction temperature remains within safe operating limits during device operation.

Voltage Gain-Nom is a parameter used to describe the ratio of the output voltage to the input voltage in electronic components such as amplifiers. It represents the amplification factor of the component and indicates how much the input voltage is amplified to produce the output voltage. The "Nom" in the term signifies that this value is the nominal or typical voltage gain under specified operating conditions. A higher voltage gain indicates a greater amplification of the input signal, while a lower voltage gain signifies less amplification. This parameter is crucial in determining the performance and functionality of electronic circuits and devices.

Non-linearity-Max is a parameter used to describe the maximum level of non-linearity exhibited by an electronic component or system. Non-linearity refers to the deviation of the component's output from a straight line when compared to its input signal. In the context of electronic components, such as amplifiers or sensors, non-linearity can introduce distortion or inaccuracies in the output signal. The "Non-linearity-Max" parameter specifies the maximum amount of deviation allowed before the component is considered to be operating outside of its specified linear range. It is an important characteristic to consider when designing or selecting components for applications where precise and accurate signal processing is required.

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.

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

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.