ADS1114
16-Bit 860SPS 1-Ch Delta-Sigma ADC With PGA, Oscillator, Vref, Comparator, and I2C
ADS1114
- Ultra-Small X2QFN Package:
2 mm × 1.5 mm × 0.4 mm - Wide Supply Range: 2.0 V to 5.5 V
- Low Current Consumption: 150 µA
(Continuous-Conversion Mode) - Programmable Data Rate:
8 SPS to 860 SPS - Single-Cycle Settling
- Internal Low-Drift Voltage Reference
- Internal Oscillator
- I2C Interface: Four Pin-Selectable Addresses
- Four Single-Ended or Two Differential Inputs (ADS1115)
- Programmable Comparator (ADS1114 and ADS1115)
- Operating Temperature Range:
–40°C to +125°C
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.
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Technical documentation
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 | ||
Analog Design Journal | How delta-sigma ADCs work, Part 2 | 09 Nov 2011 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
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Package | Pins | Download |
---|---|---|
VSSOP (DGS) | 10 | View options |
X2QFN (RUG) | 10 | View options |
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