The ADS1119 is a precision, 16-bit, analog-to-digital converter (ADC) that 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.
The device includes buffers that allow high-impedance 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-compatible 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 +125°C.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | ADS1119 4-Channel, 1-kSPS, 16-Bit, Delta-Sigma ADC With I2C Interface datasheet (Rev. A) | PDF | HTML | Nov 28, 2018 |
| Application note | K-type thermocouple measurement circuit with precision ADC (Rev. A) | PDF | HTML | Sep 20, 2024 | |
| Application note | Calculating Conversion Latency and System Cycle Time for Delta-Sigma ADCs (Rev. A) | PDF | HTML | Mar 18, 2024 | |
| Application note | A Basic Guide to Bridge Measurements (Rev. A) | PDF | HTML | Mar 13, 2024 | |
| Application note | Digital Filter Types in Delta-Sigma ADCs (Rev. A) | PDF | HTML | Mar 29, 2023 | |
| Application note | A Basic Guide to Thermocouple Measurements (Rev. A) | PDF | HTML | Mar 29, 2023 | |
| E-book | Fundamentals of Precision ADC Noise Analysis (Rev. A) | Jun 19, 2020 | ||
| User guide | BOOSTXL-ADS1119 BoosterPack™ User's Guide | Aug 30, 2018 |
For additional terms or required resources, click any title below to view the detail page where available.
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| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| WQFN (RTE) | 16 | Ultra Librarian |
| TSSOP (PW) | 16 | Ultra Librarian |
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