SMT172 Equivalent SMT16030
Features and Highlights
World’s most energy efficient temperature sensor
Wide temperature range: -45 °C to 130 °C
Extreme low noise: less than 0.001°C
High accuracy: 0.25°C (-10 °C to 100 °C)
0.1 °C (-20 °C to 80 °C, TO18)
Ultra low current (60 µA active or 220 nA average)1
Wide supply voltage range: 2.7 V to 5.5 V
Excellent long term stability
Direct interface with Microcontroller (MCU)
Wide range of package options
Application
Ultra low power applications: wearable electronics, wireless sensor networks
Medical applications: body temperature monitoring
Instrumentation: (Bio)chemical analysis, Precision equipment
Environmental monitoring (indoor / outdoor)
Industrial applications: process monitoring / controlling
Introduction
The SMT172 is an ultra-low power, high accuracy temperature sensor that combines the ease of use with
the world’s leading performance over a wide temperature range. Using the most recent advances in the
silicon temperature sensing technology, the SMT172 has applied some really sophisticated IC design
techniques as well as high-precision calibration methods, to achieve an absolute inaccuracy of less than
0.25°C in the range of -10 °C to 100 °C
The SMT172 operates with a supply voltage from 2.7 V to 5.5 V. The typical active current of only 60 µA, the
high speed conversion over 4000 outputs per second (at room temperature) and an extremely low noise
makes this sensor the most energy efficient temperature sensor in the world.
The SMT172 has a pulse width modulated (PWM) output signal, where the duty cycle is proportional to the
measured temperature value. This makes it possible that the sensor can interface directly to a MCU without
using an Analog-to-Digital Converter (ADC). Today, the hardware Timer in a MCU to read our PWM signal
has become available almost universally, fast in speed and low in cost. Therefore it is extremely easy for
any user to get started with this sensor and achieve a very quick time to market.
Features and Highlights
World’s most energy efficient temperature sensor
Wide temperature range: -45 °C to 130 °C
Extreme low noise: less than 0.001°C
High accuracy: 0.25°C (-10 °C to 100 °C)
0.1 °C (-20 °C to 80 °C, TO18)
Ultra low current (60 µA active or 220 nA average)1
Wide supply voltage range: 2.7 V to 5.5 V
Excellent long term stability
Direct interface with Microcontroller (MCU)
Wide range of package options
Application
Ultra low power applications: wearable electronics, wireless sensor networks
Medical applications: body temperature monitoring
Instrumentation: (Bio)chemical analysis, Precision equipment
Environmental monitoring (indoor / outdoor)
Industrial applications: process monitoring / controlling
Introduction
The SMT172 is an ultra-low power, high accuracy temperature sensor that combines the ease of use with
the world’s leading performance over a wide temperature range. Using the most recent advances in the
silicon temperature sensing technology, the SMT172 has applied some really sophisticated IC design
techniques as well as high-precision calibration methods, to achieve an absolute inaccuracy of less than
0.25°C in the range of -10 °C to 100 °C
The SMT172 operates with a supply voltage from 2.7 V to 5.5 V. The typical active current of only 60 µA, the
high speed conversion over 4000 outputs per second (at room temperature) and an extremely low noise
makes this sensor the most energy efficient temperature sensor in the world.
The SMT172 has a pulse width modulated (PWM) output signal, where the duty cycle is proportional to the
measured temperature value. This makes it possible that the sensor can interface directly to a MCU without
using an Analog-to-Digital Converter (ADC). Today, the hardware Timer in a MCU to read our PWM signal
has become available almost universally, fast in speed and low in cost. Therefore it is extremely easy for
any user to get started with this sensor and achieve a very quick time to market.
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