Low power conversion for small sensor signals

6th July 2018

Alex Lynn

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Datasheet

It has been announced that Mouser Electronics is now stocking the 16-bit ADS112C04 delta-sigma analogue-to-digital converter (ADC) from Texas Instruments (TI). Drawing currents as low was 315µA, the highly integrated ADS112C04 enables reduced system cost and component count in applications that measure small sensor signals, including resistance temperature detectors (RTDs), thermocouples, thermistors, resistive bridge sensors, and medical monitoring systems.

The TI ADS112C04 ADC, available from Mouser Electronics, features two differential or four single ended inputs through a flexible input multiplexer (MUX), two programmable excitation current sources, programmable gain amplifier (PGA), a voltage reference, a clock oscillator, and a precision temperature sensor.

The device offers two conversion modes, single-shot or continuous, and can perform conversions at data rates up to 2,000 samples-per-second (SPS) with single cycle settling. At 20 SPS, the device’s digital filter offers simultaneous 50Hz and 60Hz rejection for noisy industrial applications.

The ADS112C04 features a Two Wire, I2C-compatible interface that supports I2C bus speeds up to 1Mbps, with two address pins that allow selection of 16 different I2C addresses for the device. The 5.0×4.40mm TSSOP device operates from a wide supply range of 2.3 to 5.5V over a temperature range of minus 40 to 125°C.

The ADS112C04 ADC is supported by the ADS112C04EVM evaluation and Delta-Sigma ADC EvaluaTIon Software, which help engineers reduce prototype development time and get products to market faster.