Support software
ADS1115-C-EXAMPLE-CODE — ADS1115 example C code
Expedite your embedded design using this example C code for the ADS1115 product family
ADS1115-Q1
Automotive 16-bit, 860-SPS, 4-ch, delta-sigma ADC with PGA, oscillator, VREF, comparator and I2C
Data sheet
ADS1115-Q1
- AEC-Q100 qualified for automotive applications:
- Temperature grade 1: –40°C to +125°C, TA
- Functional Safety-Capable
- 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
- Family of devices:
- ADS1113-Q1: 1 single-ended or differential input
- ADS1114-Q1: 1 single-ended or differential input with comparator and PGA
- ADS1115-Q1: 4 single-ended or 2 differential inputs with comparator and PGA
The ADS1113-Q1, ADS1114-Q1, and ADS1115-Q1 devices ( ADS111x-Q1) are precision, low-power, 16-bit, I2C-compatible, analog-to-digital converters (ADCs) offered in VSSOP-10 and UQFN-10 packages. The ADS111x-Q1 devices incorporate a low-drift voltage reference and an oscillator. The ADS1114-Q1 and ADS1115-Q1 also incorporate a programmable gain amplifier (PGA) and a digital comparator. These features, along with a wide operating supply range, make the ADS111x-Q1 well suited for power- and space-constrained, sensor measurement applications.
The ADS111x-Q1 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-Q1 features an input multiplexer (MUX) that allows two differential or four single-ended input measurements. Use the digital comparator in the ADS1114-Q1 and ADS1115-Q1 for under- and overvoltage detection.
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Technical documentation
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View all 9 | Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | ADS111x-Q1Automotive, Low-Power, I2C-Compatible, 860-SPS, 16-Bit ADCs With Internal Reference, Oscillator, and Programmable Comparator datasheet (Rev. E) | PDF | HTML | 12 Dec 2022 |
| Application note | Calculating Conversion Latency and System Cycle Time for Delta-Sigma ADCs (Rev. A) | PDF | HTML | 18 Mar 2024 | |
| Application note | Digital Filter Types in Delta-Sigma ADCs (Rev. A) | PDF | HTML | 29 Mar 2023 | |
| Functional safety information | ADS1115-Q1 Functional Safety FIT Rate, FMD and Pin FMA (Rev. A) | PDF | HTML | 01 Dec 2022 | |
| Application note | A Basic Guide to I2C | PDF | HTML | 08 Nov 2022 | |
| E-book | Fundamentals of Precision ADC Noise Analysis (Rev. A) | 19 Jun 2020 | ||
| 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
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| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| UQFN (NKS) | 10 | Ultra Librarian |
| VSSOP (DGS) | 10 | Ultra Librarian |
Ordering & quality
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