Product details

Resolution (Bits) 16 Number of input channels 3 Sample rate (Max) (kSPS) 0.24 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 Oscillator, PGA, Small Size Operating temperature range (C) -40 to 85 Power consumption (Typ) (mW) 0.675 Analog voltage AVDD (Min) (V) 2.7 Analog voltage AVDD (Max) (V) 5.5 INL (Max) (+/-LSB) 6.5 Digital supply (Min) (V) 2.7 Digital supply (Max) (V) 5.5
Resolution (Bits) 16 Number of input channels 3 Sample rate (Max) (kSPS) 0.24 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 Oscillator, PGA, Small Size Operating temperature range (C) -40 to 85 Power consumption (Typ) (mW) 0.675 Analog voltage AVDD (Min) (V) 2.7 Analog voltage AVDD (Max) (V) 5.5 INL (Max) (+/-LSB) 6.5 Digital supply (Min) (V) 2.7 Digital supply (Max) (V) 5.5
VSON (DRC) 10 9 mm² 3.00 x 3.00 VSSOP (DGS) 10 9 mm² 3 x 3
  • 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.

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Technical documentation

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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 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
Application note Digital Filter Types in Delta-Sigma ADCs PDF | HTML 27 Jun 2017
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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VSON (DRC) 10 View options
VSSOP (DGS) 10 View options

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