Home Data converters Analog-to-digital converters (ADCs) Precision ADCs
Home
Data converters
Analog-to-digital converters (ADCs)
Precision ADCs

ADS1112

ACTIVE

16-Bit 240SPS 4-Ch Delta-Sigma ADC With PGA, Oscillator, Voltage Reference, and I2C

Order now
Data sheet

ADS1112

ACTIVE
Data sheet Order now

Product details

Resolution (Bits) 16 Sample rate (max) (ksps) 0.24 Number of input channels 3 Interface type I2C Architecture Delta-Sigma Input type Differential, Single-ended Multichannel configuration Multiplexed Rating Catalog Reference mode Internal Input voltage range (max) (V) 5.5 Input voltage range (min) (V) 0 Features Oscillator, PGA, Small Size Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 0.675 Analog supply (min) (V) 2.7 Analog supply voltage (max) (V) 5.5 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.5
Resolution (Bits) 16 Sample rate (max) (ksps) 0.24 Number of input channels 3 Interface type I2C Architecture Delta-Sigma Input type Differential, Single-ended Multichannel configuration Multiplexed Rating Catalog Reference mode Internal Input voltage range (max) (V) 5.5 Input voltage range (min) (V) 0 Features Oscillator, PGA, Small Size Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 0.675 Analog supply (min) (V) 2.7 Analog supply voltage (max) (V) 5.5 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.5
VSON (DRC) 10 9 mm² 3 x 3 VSSOP (DGS) 10 14.7 mm² 3 x 4.9
  • COMPLETE DATA ACQUISITION SYSTEM IN A SMALL MSOP–10 PACKAGE AND LEADLESS QFN-STYLE PACKAGES
  • MEASUREMENTS FROM TWO DIFFERENTIAL CHANNELS OR THREE SINGLE–ENDED CHANNELS
  • I2C™ INTERFACE—EIGHT ADDRESSES PIN–SELECTABLE
  • ONBOARD REFERENCE:
       Accuracy: 2.048V ±0.05%
       Drift: 5ppm/°C
  • ONBOARD PGA
  • ONBOARD OSCILLATOR
  • 16-BITS NO MISSING CODES
  • INL: 0.01% of FSR max
  • CONTINUOUS SELF-CALIBRATION
  • SINGLE-CYCLE CONVERSION
  • PROGRAMMABLE DATA RATE: 15SPS TO 240SPS
  • POWER SUPPLY: 2.7V to 5.5V
  • LOW CURRENT CONSUMPTION: 240µA
  • APPLICATIONS
    • PORTABLE INSTRUMENTATION
    • INDUSTRIAL PROCESS CONTROL
    • SMART TRANSMITTERS
    • CONSUMER GOODS
    • FACTORY AUTOMATION
    • TEMPERATURE MEASUREMENT

All trademarks are the property of their respective owners.
  • COMPLETE DATA ACQUISITION SYSTEM IN A SMALL MSOP–10 PACKAGE AND LEADLESS QFN-STYLE PACKAGES
  • MEASUREMENTS FROM TWO DIFFERENTIAL CHANNELS OR THREE SINGLE–ENDED CHANNELS
  • I2C™ INTERFACE—EIGHT ADDRESSES PIN–SELECTABLE
  • ONBOARD REFERENCE:
       Accuracy: 2.048V ±0.05%
       Drift: 5ppm/°C
  • ONBOARD PGA
  • ONBOARD OSCILLATOR
  • 16-BITS NO MISSING CODES
  • INL: 0.01% of FSR max
  • CONTINUOUS SELF-CALIBRATION
  • SINGLE-CYCLE CONVERSION
  • PROGRAMMABLE DATA RATE: 15SPS TO 240SPS
  • POWER SUPPLY: 2.7V to 5.5V
  • LOW CURRENT CONSUMPTION: 240µA
  • APPLICATIONS
    • PORTABLE INSTRUMENTATION
    • INDUSTRIAL PROCESS CONTROL
    • SMART TRANSMITTERS
    • CONSUMER GOODS
    • FACTORY AUTOMATION
    • TEMPERATURE MEASUREMENT

All trademarks are the property of their respective owners.

The ADS1112 is a precision, continuously self–calibrating Analog-to-Digital (A/D) converter with two differential or three single–ended channels and up to 16 bits of resolution in a small MSOP–10 package and leadless QFN-style (small-outline, no lead) packages. The onboard 2.048V reference provides an input range of ±2.048V differentially. The ADS1112 uses an I2C-compatible serial interface and has two address pins that allow a user to select one of the eight I2C Slave addresses. The ADS1112 operates from a single power supply ranging from 2.7V to 5.5V.

The ADS1112 can perform conversions at rates of 15, 30, 60, or 240 samples per second (SPS). The onboard programmable gain amplifier (PGA), which offers gains of up to eight, allows smaller signals to be measured with high resolution. In single-conversion mode, the ADS1112 automatically powers down after a conversion, greatly reducing current consumption during idle periods.

The ADS1112 is designed for applications requiring high-resolution measurement, where space and power consumption are major considerations. Typical applications include portable instrumentation, industrial process control, and smart transmitters.

The ADS1112 is a precision, continuously self–calibrating Analog-to-Digital (A/D) converter with two differential or three single–ended channels and up to 16 bits of resolution in a small MSOP–10 package and leadless QFN-style (small-outline, no lead) packages. The onboard 2.048V reference provides an input range of ±2.048V differentially. The ADS1112 uses an I2C-compatible serial interface and has two address pins that allow a user to select one of the eight I2C Slave addresses. The ADS1112 operates from a single power supply ranging from 2.7V to 5.5V.

The ADS1112 can perform conversions at rates of 15, 30, 60, or 240 samples per second (SPS). The onboard programmable gain amplifier (PGA), which offers gains of up to eight, allows smaller signals to be measured with high resolution. In single-conversion mode, the ADS1112 automatically powers down after a conversion, greatly reducing current consumption during idle periods.

The ADS1112 is designed for applications requiring high-resolution measurement, where space and power consumption are major considerations. Typical applications include portable instrumentation, industrial process control, and smart transmitters.
open-in-new Find other Precision ADCs
Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Similar functionality to the compared device
ADS1110 ACTIVE 16-Bit 240SPS 1-Ch Delta-Sigma ADC With PGA, Oscillator, Voltage Reference, and I2C Lower sample rate (0.128 kSPS), lower channel count (1-Ch)

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 9
Type Title Date
* Data sheet ADS1112: 16-Bit Analog-to-Digital Conv with Input Multiplexer and Onboard Ref datasheet (Rev. D) 04 Mar 2004
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.

Calculation tool

ANALOG-ENGINEER-CALC — Analog engineer's calculator

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 operational-amplifier (...)
Download
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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 (...)
Request
Simulation tool

TINA-TI — SPICE-based analog simulation program

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 (...)
User guide: PDF
View options
Package Pins Download
VSON (DRC) 10 View options
VSSOP (DGS) 10 View options
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos