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SNU511 Resistive dual channel sensor interface IC

ACTIVE

New product release. SNU511 is a dual channel sensor interface IC and adjustable to nearly all resistive bridge sensor types. The product supports digital compensation of offset, sensitivity, temperature drift, and non-linearity, with calibration coefficients stored in an integrated EEPROM.



  • Block Diagram
  • Features
  • Applications
  • Parameters
  • Selection Table

Block Diagram

  • 511.png
    • SNU511.png
    • SNU511(QFN20).png

Features

  • Sensor specific correction of differential bridge sensor element signals

  • Supply Voltage: 4.5V~5.5V

  • Operating temperature range: -40°C ~ +150°C

  • Accuracy: ±0.1%FS@-40°C~150°C (After sensorcalibration)

  • Bridge Sensor Input Span: 1~800 mV/V


  • Output Interface: Proportional voltage/SENT

  • Over-voltage and Reverse Polarity Protection: -40V~40V

  • NVM Memory: 256Bytes EEPROM, support repeated erasure

  • ADC: 16-bit

  • Package: QFN20/QFN24


Applications

  • icon15.svg icon16.svg
    Automotive pressure sensor
  • icon17.svg icon18.svg
    Automotive pressure switch

Parameters

  • Type
    Resistive
  • Channel
    Dual channel
  • Supply voltage
    4.5~5.5V
  • Supply current
    4mA
  • Operating temperature range
    -40°C~150°C
  • Memory
    EEPROM (256Bytes)
  • Temperature sampling rate (Max)
    4.8kHz
  • Pressure sampling rate (Max)
    4.8kHz
  • ADC resolution
    16-bit
  • Analog output resolution (DAC)
    12-bit
  • Interface
    SENT/Analog/I2C
  • Over-voltage and reverse polarity protection
    ±40V
  • ESD HBM
    ±2000V
  • Qualifications
    AEC-Q100 Grade 0

Selection Table

Model
【PDF】
Package
Ordering number
Packing option
SNU511
QFN20/QFN24
SNU511
Reel