Texas Instruments ADS1119 Delta-Sigma Analog-to-Digital Converter (ADC) is a precision, 16-bit, analog-to-digital converter. This ADC includes all features necessary to implement the most common system monitoring functions, such as supply voltage, current, and temperature monitoring. The device features two differential or four single-ended inputs through a flexible input multiplexer (MUX), rail-to-rail input buffers, a programmable gain stage, a voltage reference, and an oscillator.