Humidity and Temperature Sensor - Sensirion
Description
Datasheet SHT7x (SHT71, SHT75)
Humidity and Temperature Sensor IC Fully calibrated Digital output Low power consumption Excellent long term stability Pin type package – easy integration
Product Summary SHT7x (including SHT71 and SHT75) is Sensirion’s family of relative humidity and temperature sensors with pins.
The sensors integrate sensor elements plus signal processing in compact format and provide a fully calibrated digital output.
A unique capacitive sensor element is used for measuring relative humidity while temperature is measured by a band-gap sensor.
The applied CMOSens® technology guarantees excellent reliability and long term stability.
Both sensors are seamlessly coupled to a 14bit analog to digital converter and a serial interface circuit.
This results in superior signal quality, a fast response time and insensitivity to external disturbances (EMC).
Dimensions
3.
1 3.
7 2.
2
Each SHT7x is individually calibrated in a precision humidity chamber.
The calibration coefficients are programmed into an OTP memory on the chip.
These coefficients are used to internally calibrate the signals from the sensors.
The 2-wire serial interface and internal voltage regulation allows for easy and fast system integration.
The small size and low power consumption makes SHT7x the ultimate choice for even the most demanding applications.
SHT7x is supplied on FR4 with pins which allows for easy integration or replacement.
The same sensor is also available as surface mountable packaging (SHT1x) or on flex print (SHTA1).
Sensor Chip SHT7x V4 – for which this datasheet applies – features a version 4 Silicon sensor chip.
Besides a humidity and a temperature sensor the chip contains an amplifier, A/D converter, OTP memory and a digital interface.
V4 sensors can be identified by the alpha-numeric traceability code on the sensor cap – see example “B2G” code on Figure 1.
Material Contents While the sensor is made of a CMOS chip the sensor housing consists of an LCP cap with epoxy glob ...
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