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SNU301 Capacitive sensor interface IC

ACTIVE

SNU301 is a interface chip for temperature and pressure sensor. The product is used for sensor specific calibration of capacitive sensor signals and has the advantages of high accuracy and fast response speed. It has passed the AEC-Q100 standard certification. It can use in industrial or consumer environments .And also it is optimized for automotive environments by overvoltage and reverse polarity protection circuitry, excellent electromagnetic compatibility, and multiple diagnostic features.



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

Block Diagram

  • 301.svg
    • 9.1.png

Features

  • Drive capacitive pressure sensor

  • Supply voltage: 4.5V~5.5V

  • ESD HBM: ±2000V

  • Latch up：±200mA

  • OTP: 256Bytes

  • Built-in high accuracy PGA



  • Built-in two high resolution 24-bit ADC

  • Built-in temperature sensor

  • Interface: SENT/Analog/I2C

  • Support high and low clamp setting

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


Applications

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

Parameters

  • Type
    Capacitive
  • Channel
    Single channel
  • Supply voltage
    4.5~5.5V
  • Supply current
    3mA
  • Operating temperature range
    -40°C~150°C
  • Memory
    256Bytes?(OTP)
  • Temperature sampling rate (Max)
    4.8kHz
  • Pressure sampling rate (Max)
    4.8kHz
  • ADC resolution
    24-bit
  • Analog output resolution (DAC)
    16-bit
  • Interface
    SENT/Analog/I2C
  • Over-voltage and reverse polarity protection
    ±20V
  • ESD HBM
    ±2000V
  • Qualifications
    AEC-Q100 Grade 0

Selection Table

Model
【PDF】
Package
Ordering number
Packing option
SNU301
SSOP16
SNU301
Reel