ADS1119 Datasheet | Texas Instruments

Features - 1 Easy to Use With Only One Register to Program - Current Consumption as Low as 315 µA (typ) - Wide Supply Range: 2.3 V to 5.5 V - Rail-to-Rail Input Buffers to Achieve High Input Impedance - Programmable Gains: 1 and 4 - Programmable Data Rates: Up to 1 k SPS - 16-Bit, Noise-Free Resolution at 20 SPS - Simultaneous 50-Hz and 60-Hz Rejection at 20 SPS With Single-Cycle Settling Digital Filter - Two Differential or Four Single-Ended Inputs - Internal 2.048-V Reference: 5 ppm/°C (typ) Drift - Internal 2% Accurate Oscillator - I2C-patible Interface - Supported I2C Bus Speed Modes: Standard-Mode, Fast-Mode, Fast-Mode Plus - 16 Pin-Configurable I2C Addresses - Package: 3.0-mm × 3.0-mm × 0.75-mm WQFN 2 Applications - Battery Test Equipment - Gas Detectors - Heat Meters - Optical Modules - Wearable Fitness and Activity Trackers 3 Description The ADS1119 is a precision, 16-bit, analog-to-digital converter (ADC) that includes all features necessary to implement the most mon 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. The device includes buffers that allow highimpedance sources to be directly connected to the device. A gain stage follows the buffers which provides selectable gains of 1 and 4. The ADS1119 can perform conversions at data rates as high as 1000 samples per second (SPS) with single-cycle settling. At 20 SPS, the digital filter offers simultaneous 50-Hz and 60-Hz rejection for noisy industrial applications. The ADS1119 features a 2-wire, I2C-patible interface that supports I2C bus speeds up to 1 Mbps. 16 different I2C addresses can be selected for the device via two address pins. The ADS1119 is offered in a leadless 16-pin WQFN or a 16-pin TSSOP package and is specified over a temperature range of - 40°C to...