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SPI Programmable-Gain Amplifier with Input Vos Trim and Output Op Amp

SPI-PROGRAMMABLE GAIN AMPLIFIER(PG - Rail/Tube

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General Description

The MAX9939 is a general-purpose, differential-input programmable-gain amplifier (PGA) that is ideal for conditioning a variety of wide dynamic range signals such as those found in motor current-sense, medical instrumentation, and sonar data acquisition applications. It features SPI?-programmable differential gains from 0.2V/V to 157V/V, input offset-voltage compensation, and an output amplifier that can be configured either as a high-order active filter or to provide a differential output.

Features

? SPI-Programmable Gains: 0.2V/V to 157V/V

? Extremely Low Gain Tempco

? Integrated Amplifier for R/C Programmable Active Filter

? Input Offset-Voltage Compensation

? Input Protection to ¡À16V

? 13?A Software Shutdown Mode

? -40¡ãC to +125¡ãC Operating Temperature Range

? 10-Pin ?MAX Package

Applications

? Sensorless Motor Control

? Medical Signal Conditioning

? Sonar and General Purpose Data Acquisition

? Differential to Single-Ended Conversion

? Differential-Input, Differential-Output Signal Amplification

? Sensor Interface and Signal Processing

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    SPI-PROGRAMMABLE GAIN AMPLIFIER(PG - Rail/Tube

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