The ADS1113, ADS1114, and ADS1115 devices (ADS111x) are precision, low-power, 16-bit, I2C-compatible, analog-to-digital converters (ADCs) offered in an ultra-small, leadless, X2QFN-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, make the ADS111x well suited for power- and space-constrained, sensor measurement applications.
The ADS111x perform conversions at data rates up to 860 samples per second (SPS). The PGA offers input ranges from ±256 mV to ±6.144 V, 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 under- and overvoltage detection.
The ADS111x operate in either continuous-conversion mode or single-shot mode. The devices are automatically powered down after one conversion in single-shot mode; therefore, power consumption is significantly reduced during idle periods.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | ADS111x Ultra-Small, Low-Power, I2C-Compatible, 860-SPS, 16-Bit ADCs With Internal Reference, Oscillator, and Programmable Comparator datasheet (Rev. D) | PDF | HTML | 08 Jan 2018 |
| Application note | Digital Filter Types in Delta-Sigma ADCs (Rev. A) | PDF | HTML | 29 Mar 2023 | |
| Application note | A Basic Guide to I2C | PDF | HTML | 08 Nov 2022 | |
| Application note | Calculating Conversion Latency and System Cycle Time for Delta-Sigma ADCs | PDF | HTML | 23 Mar 2022 | |
| E-book | Fundamentals of Precision ADC Noise Analysis | 19 Jun 2020 | ||
| Application note | QFN and SON PCB Attachment (Rev. B) | PDF | HTML | 24 Aug 2018 | |
| Analog Design Journal | How delta-sigma ADCs work, Part 1 (Rev. A) | 19 Sep 2016 | ||
| E-book | Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs | 19 Mar 2015 | ||
| Technical article | Leverage coherent sampling and FFT windows when evaluating SAR ADCs (Part 1) | 13 Mar 2015 | ||
| Analog Design Journal | How delta-sigma ADCs work, Part 2 | 09 Nov 2011 |
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ADCPro™ is a modular software system for evaluating analog-to-digital converters (ADCs) without the need for expensive logic analyzers and complex analysis routines. Used alone it is suitable for performing analysis on data sets captured from ADC testing; when paired with a Texas Instruments (...)
The ADS1115 evaluation module (EVM) performance demonstration kit (PDK) is a complete solution for evaluating the ADS1115, which is a 16-bit, ultra-small, low-power, precision analog-to-digital converter (ADC). Power and I/O are provided via USB connection and a simple software interface. Analog (...)
| Package | Pins | Download |
|---|---|---|
| VSSOP (DGS) | 10 | View options |
| X2QFN (RUG) | 10 | View options |
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