The E703.11 is a fully integrated pressure signal conditioner. Its analog sensor front end interfaces directly to a wide range of pressure sensors. Sensor and temperature values are corrected by a DSP with a multi-dimensional polynomial using up to 16 coefficients. The corrected values are available via I2C or SPI interface. In parallel, the pressure can be output as a ratiometric voltage, PWM, or FM signal.
Block Diagram
Features
- High precision front-end
- PGA configurable to 2..88mV/V FS, offset adjustable to ±300% FS
- Output signal bandwidth widely configurable: (10Hz..8kHz), accuracy (10..15 ENOB), and sample rate (2..50kS/s)
- Ultra-low latency: output update rate 2..50kS/s, DSP time<25µs
- 6th order polynomial sensor correction (16 coefficients)
- Temperature sources: chip, bridge, and external (diode, NTC)
Applications
- High-precision industrial pressure sensors
- Ultra low-pressure OEM modules
- Industrial products using resistive sensor bridges