The ADS1113, ADS1114, and ADS1115 (ADS111x) are precision, low-power, 16-bit, I2C-compatible, analog-to-digital converters (ADCs) offered in a leadless X2QFN-10, a SOT-10 package, and a VSSOP-10 package. The ADS111x devices incorporate a low-drift voltage reference and an oscillator. The ADS1114 and ADS1115 also incorporate a programmable gain amplifier (PGA) and a digital comparator. These features, along with a wide operating supply range, are useful for power- and space-constrained, sensor measurement applications.
The ADS111x devices perform conversions at data rates of up to 860 samples per second (SPS). The PGA offers input ranges from ±256mV to ±6.144V, allowing precise large- and small-signal measurements. The ADS1115 features an input multiplexer (MUX) that allows two differential or four single-ended input measurements. Use the digital comparator in the ADS1114 and ADS1115 for undervoltage and overvoltage detection.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | ADS111x Ultra-Small, Low-Power, I2 C-Compatible, 860SPS, 16-Bit ADCs with Internal Reference, Oscillator, and Programmable Comparator datasheet (Rev. E) | PDF | HTML | Dec 31, 2024 |
| Application note | Calculating Conversion Latency and System Cycle Time for Delta-Sigma ADCs (Rev. A) | PDF | HTML | Mar 18, 2024 | |
| Application note | QFN and SON PCB Attachment (Rev. C) | PDF | HTML | Dec 6, 2023 | |
| Application note | Digital Filter Types in Delta-Sigma ADCs (Rev. A) | PDF | HTML | Mar 29, 2023 | |
| Application note | A Basic Guide to I2C | PDF | HTML | Nov 8, 2022 | |
| E-book | Fundamentals of Precision ADC Noise Analysis (Rev. A) | Jun 19, 2020 | ||
| Analog design Journal | How delta-sigma ADCs work, Part 1 (Rev. A) | Sep 19, 2016 | ||
| E-book | Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs | Mar 19, 2015 | ||
| Analog design Journal | How delta-sigma ADCs work, Part 2 | Nov 9, 2011 |
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 |
|---|---|---|
| X2QFN (RUG) | 10 | Ultra Librarian |
| VSSOP (DGS) | 10 | Ultra Librarian |
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