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New Tiny Temperature Sensor To Power IoT

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New Tiny Temperature Sensor To Power IoT

Here’s a new digital temperature sensor offering low power consumption and high accuracy in a 1.6 mm x 1mm size, making it easy to design into IoT, mobile and battery-powered applications.

The new AS6200’s typical current is 6µA at a measurement rate of 4 samples per second, and its digital measurement outputs are accurate to ±0.4°C. The sensor provides a resolution of 12 bit over the full temperature range of -40°C to 125°C.

The AS6200 provides a fully calibrated and linearized sensor system that can easily be accessed via an I²C interface. The sensor triggers an interrupt at the host microcontroller when the measured temperature crosses a high or low temperature threshold set by the user.

The device integrates a silicon bandgap sensor, an ADC, a digital signal processor and a serial I2C interface. The on-chip DSP handles all linearization and calibration, producing a 12-bit (0.0625°C resolution) binary output.

The AS6200 claims to draw very little current despite its high level of integration. At a operating supply of 1.8V-3.6V, the chip consumes just 1.5µA at a measurement rate of 1 sample. The conversion rate can be set in a range from 0.25Hz to 8Hz. Furthermore, in stand-by mode, in which all the chip’s functions are turned off except the serial interface, it draws just 0.1µA (typical).

“Backed by ams’ proprietary low-power, high-sensitivity analog process, this results in the factory calibrated AS6200’s industry-best combination of accuracy (±0.4°C, max between 0°C to 65°C), low power consumption and small size (1.6mm2)”, said Christian Feierl, marketing manager at ams.

The AS6200 has entered mass production. An evaluation board is available online from the ams IC direct online store. For more technical information, view the full Press release.

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