AD704AR-16

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The AD704AR-16 is an instrumentation amplifier designed to provide high input impedance, large bandwidth, and improved accuracy for a variety of applications. The AD704AR-16 amplifier is composed of an operational amplifier and a transconductance amplifier, which together allow the amplifier to acquire input signals, amplify them, and output them with the minimum of distortion. The amplifier is capable of providing a maximum gain of 16, which is adjustable via a series of resistors and capacitors on its input and output pins.

Features

• High-performance instrumentation amplifier
• Wideband operation: 10 kHz to 10 MHz​
• Maximum differential voltage gain of 16
• Inputs pins and adjustable gain setting/attenuator
• Low power consumption of 4.3 mW/channel
• Continue reading for the AD704AR-16 application field and how it works

Application Field

The AD704AR-16 is an ideal amplifier for a broad range of applications including audio-level measurement, digital-to-analog conversion, precision spectroscopy, and medical instrumentation. By providing high input impedance, wide frequency response, and adjustable gain, the amplifier is well suited for precise measurement of small signals with little distortion.

The AD704AR-16 is particularly useful for analog-to-digital output in communications applications due to its low power consumption, resulting in low operating temperature. For accurate measuring applications such as medical instrumentation, the amplifier can be used to effectively measure and analyze small signals ranging from steady state to high frequency with minimal distortion.

Working Principle

The operational amplifier (op amp) is at the heart of the AD704AR-16 amplifier. The op amp receives input signals from two inputs pins, amplifies them, and then outputs the signal to the next stage. The transconductance amplifier is responsible for adjusting the gain of the amplifier. The output of the op amp is connected to the gain setting control pins on the transconductance amplifier, which adjusts the gain of the amplifier.

The AD704AR-16 also contains a high-speed auto-zero amplifier, which reduces input offset voltage by automatically compensating for any offset voltage that is present. The amplifier is powered by a ±5V power supply, allowing it to provide excellent performance at a low quiescent current of 4.3 mW/channel.

The AD704AR-16 instrumentation amplifier is an ideal choice for applications involving precise and accurate measurements of small signals. With its adjustable gain, excellent bandwidth, and low power consumption, it is a cost-effective and reliable solution for a variety of applications.

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