Mysentech T1601B

The T1601X series is a mixed-signal digital-analog temperature sensing IC, offering a maximum measurement accuracy of ±0.1°C with no user calibration required. The temperature sensing principle is based on the characteristic relationship between CMOS semiconductor PN junction temperature and bandgap voltage. After small-signal amplification, analog-to-digital conversion, and digital calibration compensation, the data is output via a digital bus. The series features high accuracy, excellent consistency, fast temperature measurement, low power consumption, flexible programmable configuration, and long service life.

The IC integrates a 16-bit ADC with a resolution of 0.004°C and an ultra-wide operating range of -103°C to +153°C. Each IC undergoes 100% testing and calibration before shipment, with calibration coefficients fitted according to the temperature error characteristics, and compensation calculations performed automatically on-chip. To simplify system integration, ID search, temperature data memory access, and function configuration are all based on the digital 1-Wire (OneWire, OW) protocol, requiring only a single GPIO port on the host MCU for read/write access. The 1-Wire communication interface provides a low-cost solution for multi-node sensor acquisition and networking over a shared data line, supporting long transmission distances, a large number of nodes, and easy deployment of spatially distributed sensor networks. Up to 100 nodes can be daisy-chained over distances of 100 to 500 meters.

The IC integrates non-volatile E²PROM memory cells for storing the chip ID, high/low temperature alarm thresholds, temperature calibration correction values, and user-defined information such as sensor node numbers and location data.

• Temperature measurement range: -103°C ~ +153°C
• Low power consumption: typical standby current 0.01μA, average measurement current 2μA (AVG = 8, 1 measurement/s)
• Wide operating voltage range: 1.8V ~ 5.5V
• Configurable measurement accuracy: ±0.1°C / ±0.5°C
• Temperature measurement resolution: 16-bit output, 0.004°C
• Configurable temperature conversion time: 15.3ms / 8.5ms / 5.2ms / 2.2ms
• Up to 112-bit additional E²PROM space for user data storage
• Standard 1-Wire interface
• Heater chip self-diagnostic function

• PT100/PT1000 replacement
• NTC replacement
• Electronic thermometer
• Ultra-low temperature cold chain logistics
• Heat meter, gas meter, water meter
• Board-level temperature monitoring
• Industrial instrumentation
• Power terminal temperature measurement