ADS1115 Industry's Smallest 16-bit ADC

Texas Instruments' ADS1115 are precision analog-to-digital converters (ADCs) with 16 bits of resolution offered in an ultra-small, leadless QFN-10 package or an MSOP-10 package. The ADS1115 are designed with precision, power, and ease of implementation in mind. The ADS1115 feature an onboard reference and oscillator. Data are transferred via an I²C-compatible serial interface; four I²C slave addresses can be selected. The ADS1115 operate from a single power supply ranging from 2 V to 5.5 V.

The ADS1115 can perform conversions at rates up to 860 samples per second (SPS). An onboard PGA is available that offers input ranges from the supply to as low as ±256 mV. This allows both large and small signals to be measured with high resolution. The ADS1115 also features an input multiplexer (MUX) that provides two differential or four single-ended inputs.

The ADS1115 operate either in continuous conversion mode or a single-shot mode that automatically powers down after a conversion and greatly reduces current consumption during idle periods. The ADS1115 are specified from -40°C to 125°C.