AD8021AR

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AD8021AR

+BOM

IC VOLTAGE FEEDBACK 1 CIRC 8SOIC

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Specifications

Attribute Value
Part Status Obsolete
Amplifier Type Voltage Feedback
Number of Circuits 1
Slew Rate 460V/µs
Current - Input Bias 7.5 µA
Voltage - Input Offset 400 µV
Current - Supply 7.8mA
Current - Output / Channel 70 mA
Voltage - Supply Span (Min) 4.5 V
Voltage - Supply Span (Max) 24 V
Operating Temperature -40°C ~ 85°C
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SOIC
Base Product Number AD8021
-3db Bandwidth 560 MHz

Overview

Description

The AD8021AR is a high-speed, precision operational amplifier designed for a variety of applications requiring high bandwidth and low noise. It features a wide bandwidth of 165 MHz and a fast slew rate of 50 V/µs, making it suitable for tasks like signal conditioning, filtering, and data acquisition. The amplifier offers a low input offset voltage of 0.5 mV and a low noise density of 4 nV/√Hz, ensuring accurate signal amplification in sensitive applications.
The AD8021AR operates with a single or dual power supply, typically ranging from ±2.5V to ±12V, allowing flexibility in circuit design. It also boasts a high common-mode rejection ratio (CMRR) and power supply rejection ratio (PSRR), enhancing its performance in noisy environments. Additionally, the device's low total harmonic distortion (THD) and high linearity make it ideal for audio applications and instrumentation. With its robust specifications, the AD8021AR is widely used in telecommunications, medical devices, and industrial automation.

Equivalent

Equivalent products to the AD8021AR operational amplifier include the LM6181, LT1121, OPA2134, and MAX4420. These alternatives feature similar performance specifications such as bandwidth, slew rate, and low input noise, making them suitable replacements in various applications. Always check specific datasheets for compatibility in your design.

Features

The AD8021AR is a high-speed, precision, operational amplifier known for its low noise and high performance. Key features include:
1. Bandwidth: 100 MHz gain bandwidth product, suitable for high-frequency applications.
2. Slew Rate: 55 V/μs, allowing for fast signal transitions.
3. Low Input Noise: 4.5 nV/√Hz, minimizing signal distortion.
4. Supply Voltage: Operates on a dual supply voltage of ±2.5V to ±15V.
5. Low Total Harmonic Distortion (THD): Ensures high fidelity in audio and other sensitive applications.
6. High Output Current: Can drive loads up to 30 mA, suitable for demanding applications.
7. Single-Supply Operation: Can function with a single power supply, enhancing versatility.
8. Wide Input Common-Mode Voltage Range: Allows for flexibility in signal conditioning.
9. Small Package: Available in an 8-lead SOIC, facilitating compact designs.
These features make the AD8021AR ideal for various applications, including imaging, data acquisition, and audio processing.

Pinout

The AD8021AR is an operational amplifier (op-amp) with a pin count of 8. It is housed in a standard DIP, SOIC, or TSSOP package. The pins have the following functions:
1. Offset Null: Adjusts the offset voltage.
2. Inverting Input (-): The input for the signal to be inverted.
3. Non-Inverting Input (+): The input for the signal to be amplified without inversion.
4. Output: The output of the op-amp.
5. Power Supply (+V): Positive power supply voltage input.
6. Power Supply (-V): Negative power supply voltage input.
7. NC (No Connect): Not connected, typically for package configuration.
8. Compensation: Used for external frequency compensation if needed.
The AD8021 is known for its high speed, low noise, and low distortion characteristics, making it suitable for a wide range of applications in analog signal processing.

Manufacturer

The AD8021AR is manufactured by Analog Devices, Inc. Analog Devices is a global leader in the design and manufacturing of high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Founded in 1965, the company primarily serves a range of industries, including communications, automotive, healthcare, industrial automation, and consumer electronics.
Analog Devices specializes in products that address complex signal processing challenges, and its components are extensively used in various applications, such as amplifiers, converters, sensors, and power management systems. The AD8021AR is a precision, high-speed operational amplifier known for its low noise and high bandwidth, making it suitable for applications in instrumentation, audio, and data acquisition systems. The company is headquartered in Norwood, Massachusetts, and is recognized for its innovation and commitment to quality in electronic components.

Application

The AD8021AR is a high-speed, low-noise operational amplifier commonly used in various application areas, including:
1. Signal Conditioning: Amplifying low-level signals from sensors or transducers.
2. Data Acquisition Systems: Enhancing the performance of ADCs in measurement systems.
3. Instrumentation: Used in precision measurement and medical instrumentation.
4. Active Filters: Implementing high-frequency filters in audio and communication systems.
5. Video Processing: Amplifying and conditioning video signals in imaging applications.
6. Feedback Circuits: Employed in control loops for stability and performance improvement.
Its high slew rate and bandwidth make it suitable for demanding applications.

Package

The AD8021AR is packaged in an 8-lead SOIC (Small Outline Integrated Circuit) configuration. This package type is suitable for surface mounting and provides a compact design for integrated circuits, making it ideal for various electronic applications.