Temperature sensing chip - T117

Product Specification

T117 series is a digital analog hybrid signal temperature sensing chip, the maximum temperature measurement accuracy of ± 0.1℃, the user does not need to calibrate. Temperature chip sense, temperature principle is based on the characteristics of CMOS semiconductor PN node temperature and band gap voltage, after small signal amplification, analog-to-digital conversion, digital calibration compensation, digital bus output, has the advantages of high accuracy, good consistency, fast temperature measurement, low power consumption, flexible programmable configuration, long life and so on.

The chip is built in 16-bit ADC, resolution 0.004°C, with an ultra-wide working range of-103° C to + 153°C. The chip is calibrated 100% before leaving the factory, the calibration coefficient is fitted according to the temperature error characteristics, and the compensation is automatically calculated inside the chip. The chip supports digital I2C communication interface, temperature measurement data memory access, function configuration can be realized through digital protocol instructions. The I2C interface is suitable for high-speed board-level application scenarios, with a maximum interface speed of 2 MHz.

The chip built-in non-volatile E 2PROM memory unit is used to save the chip ID number, high and low temperature alarm threshold, temperature calibration correction value and user custom information, such as sensor node number, location information, etc. The chip has another ALERT alarm indicator pin for the user to expand the hardware alarm applications.

Feature：

Maximum temperature measurement accuracy: ± 0.1℃ / ± 0.5℃

Range: -103°C~ + 153°C

Low power consumption: typical standby current 0.01 µ A, temperature measurement peak current 0.36 mA, temperature average current 2 μ A (AVG = 8,1 measurement / s)

Wide working voltage range: 1.8V~5.5V

Temperature resolution: 16-bit output 0.004°C

Temperature transition time is configurable: 15.3ms/8.5ms/5.2ms/2.2ms

A single time / cycle measurement can be configured

Users can set the temperature alarm

Maximum 112bit extra E 2PROM space for storing user information

Standard I2C interface, simultaneously compatible with digital single bus interface

Heating chip self-diagnosis function

Application：

Smart wearable

Electronic thermometer

Animal temperature detection

Medical electronics

Cold-chain logistics, warehousing

Smart home

Hot meter gas meter water meter

To replace the PT 100 / PT1000

Board-level temperature monitoring

Environmental temperature of industry and agriculture

Intelligent household electrical appliance

CE(Consumer Electronics)

Temperature measurement instrument