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A17700 Datasheet Pressure Sensor Interface

Manufacturer: Allegro MicroSystems

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General Description

The A17700 is a sensor interface IC designed to connect directly to a strain gauge or other sensor in a Wheatstone bridge configuration.

The A17700 amplifies and converts the analog input from the bridge to the digital domain, low-pass filters the signal, and outputs a ratiometric analog signal or a digital SENT/PWM protocol.

Digital signal processing functions, including temperature compensation and gain/offset trim, provide an accurate and linear output.

Overview

A17700 Pressure Sensor Interface and Signal Conditioning IC with Polynomial Signal Compensation and Advanced.

Key Features

  • Directly interfaces with strain gauge or other transducer in Wheatstone bridge configuration for low noise and high accuracy measurements.
  • On-chip Poly(4,4) compensation for improved accuracy over temperature, compensating both IC and bridge.
  • Offering from Poly(1,1) to Poly(4,4) polynomial compensation including any possible degree between 0 and 4 like Poly(2,4) and Poly(3,3).
  • Ratiometric analog output for legacy.

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