Texas Instrument' LMT70 is an ultra-small, high-precision, low-power CMOS analog temperature sensor with an output enable pin. Applications for the LMT70 include virtually any type of temperature sensing where cost-efficiency, high precision, and low-power are required, such as Internet of Things (IoT) sensor nodes, medical thermometers, high-precision instrumentation, and battery-powered devices. The LMT70 is also a great replacement for RTD and precision NTC/PTC thermistors.
Its output enable pin allows multiple LMT70s to share one ADC channel, thus simplifying ADC calibration and reducing the overall system cost for precision temperature sensing. The LMT70 also has a linear and low impedance output allowing seamless interface to an off-the-shelf MCU/ADC. Dissipating less than 36 µW, the LMT70 has ultra-low self-heating supporting its high-precision over a wide temperature range.
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- Wide temperature range: -55°C to 150°C
- Matching of two adjacent LMT70A on tape/reel: 0.1°C (max) at 30°C
- Very linear analog temperature sensor with output enable pin
- NTC output slope: -5.19 mV/°C
- Output on/off switch with RDS(on) < 80 Ω
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- Accuracy:
- ±0.05°C (typ) or ±0.13°C (max) from 20°C to 42°C
- ±0.2°C (max) from -20°C to 90°C
- ±0.23°C (max) from 90°C to 110°C
- ±0.36°C (max) from -55°C to 150°C
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Texas Instrument' LMT70 is an ultra-small, high-precision, low-power CMOS analog temperature sensor with an output enable pin. Applications for the LMT70 include virtually any type of temperature sensing where cost-efficiency, high precision, and low-power are required, such as Internet of Things (IoT) sensor nodes, medical thermometers, high-precision instrumentation, and battery-powered devices. The LMT70 is also a great replacement for RTD and precision NTC/PTC thermistors. 
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