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Product details

Parameters

Resolution (Bits) 16 Number of input channels 4 Sample rate (Max) (kSPS) 0.86 Interface type I2C Architecture Delta-Sigma Input type Differential, Single-Ended Multi-channel configuration Multiplexed Rating Catalog Reference mode Int Input range (Max) (V) 5.5 Input range (Min) (V) 0 Features Comparator, Oscillator, PGA Operating temperature range (C) -40 to 125 Power consumption (Typ) (mW) 0.3 Analog voltage AVDD (Min) (V) 2 Analog voltage AVDD (Max) (V) 5.5 INL (Max) (+/-LSB) 1 Digital supply (Min) (V) 2 Digital supply (Max) (V) 5.5 open-in-new Find other Precision ADCs (<=10MSPS)

Package | Pins | Size

VSSOP (DGS) 10 9 mm² 3 x 3 X2QFN (RUG) 10 3 mm² 1.5 x 2 open-in-new Find other Precision ADCs (<=10MSPS)

Features

  • 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

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Description

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

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet ADS111x Ultra-Small, Low-Power, I2C-Compatible, 860-SPS, 16-Bit ADCs With Internal Reference, Oscillator, and Programmable Comparator datasheet (Rev. D) Jan. 08, 2018
White papers Fundamentals of Precision ADC Noise Analysis Jun. 19, 2020
Application notes Ultra-small, precision analog temperature sensor measurement with ADC Apr. 20, 2020
Application notes Precision measurement circuit with 16 singled-ended channels and I2C interface Oct. 31, 2019
Application notes QFN and SON PCB Attachment (Rev. B) Aug. 24, 2018
Application notes Digital Filter Types in Delta-Sigma ADCs Jun. 27, 2017
Application notes How delta-sigma ADCs work, Part 1 (Rev. A) Sep. 19, 2016
White papers Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs Mar. 19, 2015
Application notes How delta-sigma ADCs work, Part 2 Nov. 09, 2011
User guides ADS1015EVM, ADS1115EVM, ADS1015EVM-PDK, ADS1115EVM-PDK User Guide (Rev. B) May 11, 2011

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
Description

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 (...)

Features

ADCPro software from Texas Instruments will simplify the tasks of collecting and analyzing ADC data, and ease evaluation. With it, you can easily set up an evaluation system that may not exactly replicate the manufacturer's system, but still arrive at meaningful results that can be compared to (...)

Software development

DRIVERS & LIBRARIES Download
Linux Driver for ADS1015
ADS1015SW-LINUX The Linux driver supports the ADS1015 and ADS1115 12-Bit ADCs with Integrated MUX, PGA, Comparator, Oscillator, and Reference. The Linux driver supports communication through the I2C bus and interfaces with the IIO sub-system.

 

Linux Mainline Status

Available in Linux Main line: Yes
Available through (...)

SUPPORT SOFTWARE Download
SBAC223.ZIP (15134 KB)

Design tools & simulation

SIMULATION MODELS Download
SBAM025.ZIP (19 KB) - IBIS Model
SIMULATION TOOLS Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
SIMULATION TOOLS Download
SPICE-based analog simulation program
TINA-TI TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
document-generic User guide
CALCULATION TOOLS Download
Analog-to-digital converter (ADC) input driver design tool supporting multiple input types
ADC-INPUT-CALC ADC-INPUT-CALC is an online tool that provides support for designing the input buffer to an analog-to-digital converter (ADC). It offers 24 different op-amp based buffer circuits that can be used to drive an ADC input. The available topologies cover differential, single-ended and transformer-coupled (...)
CALCULATION TOOLS Download
Analog engineer's calculator
ANALOG-ENGINEER-CALC — The Analog Engineer’s Calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting op-amp gain with feedback (...)
Features
  • Expedites circuit design with analog-to-digital converters (ADCs) and digital-to-analog converters (DACs)
    • Noise calculations
    • Common unit translation
  • Solves common amplifier circuit design problems
    • Gain selections using standard resistors
    • Filter configurations
    • Total noise for common amplifier configurations
  • (...)

Reference designs

REFERENCE DESIGNS Download
Human Skin Temperature Sensing for Wearable Applications Reference Design
TIDA-00824 TIDA-00824 features the LMT70 analog temperature sensor for measuring human skin temperature. This TI design features how to mechanically mount the temperature sensor for best  thermal conductivity. Signal path considerations on how to achieve greater than 0.1°C accuracy is also discussed (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
VSSOP (DGS) 10 View options
X2QFN (RUG) 10 View options

Ordering & quality

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