The T1601X series is a digital-analog mixed-signal temperature sensor chip with high measurement accuracy of ±0.1°C, requiring no user calibration. The temperature sensing principle is based on the characteristic relationship between the PN junction temperature and bandgap voltage of CMOS semiconductors. After small-signal amplification, analog-to-digital conversion, and digital calibration compensation, the output is provided via a digital bus. It features high accuracy, good consistency, fast temperature measurement, low power consumption, flexible programmable configuration, and long lifespan.
The chip integrates a 16-bit ADC with a resolution of 0.004°C and has an ultra-wide operating range from -103°C to +153°C. Each chip is 100% tested and calibrated before shipment, with calibration coefficients fitted based on temperature error characteristics, and internal automatic compensation calculation. To simplify system application, the chip's ID search, temperature data memory access, and function configuration are all based on digital single-bus protocol (One Wire, OW) commands. The host microprocessor only needs one GPIO port for read/write access. The single-bus communication interface enables multi-node sensor acquisition and networking through a shared data bus, offering a low-cost solution with long transmission distance and support for many nodes, facilitating spatially distributed sensor networking. It can support up to 100 nodes in series over 100 to 500 meters.
The chip includes non-volatile E2PROM storage for saving the chip ID, high/low temperature alarm thresholds, temperature calibration correction values, and user-defined information such as sensor node numbers and location information.
1.Features of Digital Temperature Sensor Chip - T1601:
Temperature measurement range: -103°C to +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 to 5.5V
Customizable temperature accuracy: ±0.1°C / ±0.5°C
Temperature 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 information
Standard single-bus interface
Heater chip self-diagnosis function
2.Applications of Digital Temperature Sensor Chip - T1601:
Replacement for PT100/PT1000 solutions
Replacement for NTC solutions
Electronic thermometers
Ultra-low temperature cold chain logistics
Heat meters, gas meters, water meters
Board-level temperature monitoring
Industrial instruments and meters
Power terminal temperature measurement
