Sensirion SHT3x-DIS Digital Humidity & Temperature Sensors

Sensirion SHT3x-DIS Digital Humidity and Temperature Sensors build on a CMOSens^® sensor chip to provide high intelligence, reliability, and accuracy. The board-mount SHT3x-DIS offers enhanced signal processing, two distinctive and user-selectable I²C addresses, and communication speed up to 1MHz. SHT35-DIS components offer typical accuracy of ±1.5% relative humidity (RH) and ±0.1°C for the SHT35 devices. SHT3x-DIS features a 2.5mm x 2.5mm x 0.9mm (LxWxH) footprint and a 2.4V to 5.5V supply voltage range.

Features

Fully calibrated, linearized, and temperature compensated digital output
I²C interface with communication speeds up to 1MHz and two user-selectable addresses
Typical accuracy of ±1.5%RH and ±0.1°C for SHT35
Very fast start-up and measurement time

Wide supply voltage range from 2.15V to 5.5V
Tiny 8-Pin DFN package
High reliability and long term stability
Designed for mass production
High process capability
High signal-to-noise ratio

Applications

Automotive
Medical

Consumer
Industrial

Specifications

Humidity sensor
- Accuracy tolerance
  - ±2%RH for the SHT30
  - ±2%RH for the SHT31
  - ±1.5%RH for the SHT35
- 0.08%RH to 0.21%RH repeatability range
- 0.01%RH typical resolution
- ±0.8%RH hysteresis at +25°C
- 0 to 100%RH specified range
- <0.25%RH/yr long-term drift
Temperature sensor
- Accuracy tolerance
  - ±0.2%RH typical for the SHT30 from 0 to +65°C
  - ±0.2%RH typical for the SHT31 from 0 to +90°C
  - ±0.1%RH typical for the SHT35 from +20°C to +60°C
- +0.04°C to +0.15°C repeatability range
- 0.01°C typical resolution
- -40°C to +125°C specified range
- >2s response time
- <+0.03°C/yr maximum long-term drift
Electrical
- 2.15V to 5.5V supply voltage range
- 1.8V to 2.15V power-up/-down level range
- 20V/ms maximum slew rate change of the supply voltage
- Supply current
  - 2.0µA to 6.0µA maximum idle state in single-shot mode
  - 45µA typical idle state in periodic data acquisition mode
  - 1500µA maximum measurement, 600µA typical
  - 1.7µA typical average
- 3.6mW to 33mW heater power range

Timing
- Power-up time
  - 1ms maximum within the 2.4V to 5.5V range, 0.5ms typical
  - 1.5ms maximum within the 2.15V to <2.4V range, 0.5ms typical
- 1.5ms maximum soft reset time, 0.5ms typical
- 1µs typical duration of the reset pulse
- Measurement duration
  - 4ms to 4.5ms maximum for low repeatability, 2.5ms typical
  - 6ms to 5.5ms maximum for medium repeatability, 4.5ms typical
  - 15ms to 15.5ms maximum for high repeatability, 12.5ms typical
Absolute maximum
- -0.3V to 6V supply voltage range
- ±100mA input current on any pin
- Temperature ranges
  - -40°C to +125°C operating
  - -40°C to +150°C storage
- ESD
  - 4kV human body model (HBM)
  - 750V charge device model (CDM)
Communication timing
- 0 to 1000kHz SCL clock frequency range
- 0.24µs minimum hold time START condition
- SCL clock
  - 0.53µs minimum LOW period
  - 0.26µs minimum HIGH period
- SDA time
  - 0 to 250ns hold time
  - 100ns minimum set-up time
  - 0.9µs maximum valid time
- 300ns maximum SCL/SDA rise/fall time
- 0.26µs minimum set-up time for a repeated START or STOP condition
- 400pF maximum capacitive load on the bus line
- 0.4V maximum low-level output voltage