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Resistive pressure sensor interface reference design

Texas Instruments’ TIDA-00150 Design provides reference documentation on the PGA400-Q1 which will allow customers to quickly evaluate the automotive qualified PGA400-Q1 System on Chip (SoC) as an interface for their automotive resistive pressure sensor applications. The PGA400-Q1 has a built-in configurable Analog Front-End (AFE) with diagnostics, Sigma-Delta ADC, DACs, SPI, I2C, and a One-Wire Interface (OWI).

Design

16 August 2018

byNews Desk

Also with an integrated 8051 MCU and OTP memory, this chip enables a fully configurable system that can be easily matched to multiple automotive resistive pressure sensor applications. This design incorporates the PGA400Q1EVM board to create the solution.

Features

Full SoC with Chopper-stabilised AFE for Resistive Bridge Sensors and integrated 8051 core allowing high level of customisation and reduced system complexity
Can serve multiple automotive pressure sensor applications as a platform product
Algorithms for compensating the sensor’s non-idealities can easily be implemented in software
On chip temperature sensor with 10bit ADC allows for direct signal conditioning and compensation for the sensor’s actual temperature environment
Includes test data demonstrating capabilities of PGA400-Q1 to enable quick evaluation of product’s performance
AEC-Q100 Qualified

Discover more here.