Temperature sensing chip - M601

Product Specification

M601, M1601 and M1820 series are high-precision digital analog hybrid signal temperature sensing chips. M601 is a body temperature chip with the highest temperature measurement accuracy of + 28°C to + 43°C range ± 0.1℃; M601Z, M1601Z, M1820Z is 0° C to + 50℃ range ± 0.1℃; M601W, M1601W, M1820W is 0.1℃ accuracy from + 20℃ to + 70℃; users do not need to calibrate.

The temperature sensing principle of temperature chip 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, the digital bus output has the advantages of high precision, one, good performance, fast temperature measurement, low power consumption, flexible programmable configuration, long life and so on.

The temperature chip is built in 16-bit ADC with a resolution of 0.004°C, with an ultra-wide operating range of-70°C to + 150°. The chip has a unique 64-bit ID serial number, which is 100% tested and calibrbefore leaving the factory. The calibration coefficient is fitted according to the temperature error characteristics, and the compensation is automatically calculated inside the chip. In order to simplify the system application, the chip ID search, memory access of temperature measurement data, function configuration are based on the digital single bus protocol instructions, the upper computer microprocessor only needs a GPIO port to read and write access. The single bus communication interface realizes the low formation of multi-node sensing acquisition and networking by sharing a data bus. In this scheme, with long transmission distance and many supporting nodes, it is convenient for spatial distributed sensing networking. It can support up to 100 nodes, 100 to 500 meters long temperature measurement nodes in series network.

The chip built-in non-volatile E2PROM 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. M601 series (M601, M601Z, M601W) has ALERT alarm indication pin, facilitate users to expand hardware alarm application.

Features：

temperature measurement accuracy:

± 0.1℃ (maximum) (+ 28°C to + 43°C) or ± 0.1℃ (maximum) (+ 0°C to + 50℃) or ± 0.1℃ (maximum) (+ 20°C to + 70℃)

Temperature measurement range: -70°C ~ + 150°C

Low power consumption: typical standby current 0.1µA@3.3V, peak temperature measurement current 0.45mA@3.3V, average temperature current 5.2 μ A (@3.3V, 1s cycle)

Wide working voltage range: 1.8V-5.5V

Temperature sensing resolution: 16-bit output, the highest resolution is 0.004°C

Temperature transition time is configurable: 10.5ms/5.5ms/4ms

A single time / cycle measurement can be formulated

Users can set the temperature alarm

The 32 bit extra E2PROM space is used to store the user information

Each chip has a 64bit ID serial number, facilitating multipoint network addressing

Standard single-bus interface

Appliance：

Smart wearable

Electronic thermometer

Animal temperature detection

Medical electronics

Cold-chain logistics, warehousing

Smart home

Hot meter gas meter water meter

Pin to PinPT100/PT1000