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SNH101 Temperature & humidity sensor IC

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SNH101 is a temperature and humidity sensor IC with low power consumption and high accuracy. The product supports digital compensation of non-linearity, sensitivity temperature drift, and zero temperature drift, with calibration coefficients stored in an integrated OTP.

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

Block Diagram

  • 101.svg
    • SNH101_top.png
    • SNH101_back.png

Features

Supply Voltage

  • VDD: 2.2V ~ 5.5V

  • VPP: 7.0V ~ 7.2V (OTP write only)

Operating Temperature Range

  • -40°C ~ +150°C

Average Current

  • ~10μA@1Hz ODR

Resolution

  • Capacitance resolution: 2.86aF

  • Valid resolution: 20bit

  • Built-in temperature sensor resolution: 0.003°C, after calibration accuracy: ±0.5°C

Capacitance Measurement Range

  • Differential capacitance: ±1.5pF (±4.5pF after expansion)

  • Common mode capacitance: up to 18pF (54pF after expansion)

Capacitance Measurement Frequency

  • 4.6Hz~500Hz

Communication Interface

  • I2C

  • PWM

Working Mode

  • NOR mode

  • CYC mode

  • CMD mode

  • PWMOUT mode

Others

  • Integrated non-line temperature and humidity compensation

  • Integrated IIR filter

Applications

  • icon05.svg icon06.svg
    Barometer
  • 温湿度传感器_o.svg 温湿度传感器_o(1).svg
    Temperature and humidity meter
  • icon45.svg icon46.svg
    Position detection
  • icon09.svg icon10.svg
    Level gauge

Parameters

  • Type
    Capacitive
  • Supply voltage
    2.2~5.5V
  • Supply current
    10μA
  • Operating temperature range
    -40°C~150°C
  • Memory
    64Bytes (OTP)
  • Temperature sampling rate (Max)
    500Hz
  • Humidity sampling rate (Max)
    500Hz
  • ADC resolution
    24-bit
  • Interface
    I2C/PWM
  • ESD HBM
    ±4000V
  • Qualifications
    AEC-Q100 Grade 0

Selection Table

Model
【PDF】
Package
Ordering number
SNH101
Wafer
SNH101