ADN2893ACPZ-R7

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The ADN2893ACPZ-R7 is an advanced continuous-time instrumentation amplifier (INAMP) with on-chip, fixed-gain preamplifiers, eliminating the need for external gain-setting gain blocks. This versatility combined with its low power and precision performance makes it well-suited for a variety of class-AB, high-performance signal-conditioning tasks such as those found in wireless communications, battery management, industrial data acquisition, and medical instrumentation. The device is packaged in a 6-pin SOT-23 package and has excellent midband performance when configured with its default load-setting resistors.

ADN2893ACPZ-R7 Application Field

The ADN2893ACPZ-R7 is an excellent choice for applications sensitive to board space and where high level of performance and low power are required. It provides superior CMRR and power density performance, making it an ideal choice for battery-operated medical, industrial, and communications equipment. The device\'s great midband performance allows it to be used in single-ended and differential signal conditioning operations, such as sending amplifiers, comparators, and line-drivers, whereby the AC/DC offset can be more easily maintained. It can also be used in active filtering to reduce the signal noise before further signal conditioning is done.

The ADN2893ACPZ-R7 is a part of Linear Technology’s Low-Power, Precision Instrumentation Amplifier family. This family also consists of amplifier devices with CMRR, PSRR and GBW specifications that exceed the standard performance requirements. These amplifier devices can also be used to acquire, linearize and/or filter data-acquisition signals with high precision and low-power consumption, making them a great choice for medical, industrial, and communications applications.

ADN2893ACPZ-R7 Working Principle

The working principle of the ADN2893ACPZ-R7 is based on a two-stage, continuous-time, instrument-amplifier architecture. There is a differential-input, differential-output, preamplifier stage followed by a fully differential, gain-setting, post-amplifier stage. The preamplifier stage is designed to provide a high common-mode rejection ratio (CMRR) over a range of frequencies. The post-amplifier stage is designed to amplify the signal from the preamplifier stage with a fixed gain and reduce the CMRR further. The device is also designed to provide a power-supply rejection ratio (PSRR) that is better than standard instrumentation amplifiers.

The ADN2893ACPZ-R7 is a low-power, precision, instrumentation amplifier with a nominal 1 V/A of gain. It operates from a single-ended supply of 3.3 V, making it ideal for battery-powered applications. It is designed to provide a high level of common-mode rejection over a wide frequency range up to 1 MHz, allowing it to be used in a variety of high-performance applications. This device has high output drive capability and low output impedance, enabling it to drive capacitive loads.

The ADN2893ACPZ-R7 offers state-of-the-art performance in a thermally enhanced 6-pin package. It is designed to provide low noise, high accuracy, and low power consumption. The output of the device is routed directly to the output buffer stage, making it suitable for active filtering, single-ended to differential conversion and differential to single-ended conversion. It can be used to provide high-precision signal conditioning in a wide range of applications, such as wireless communications, battery management, industrial data acquisition, and medical instrumentation.

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