12-Bit High Speed 2.7V microPower Sampling Analog-to-Digital Converter


Product details


Resolution (Bits) 12 Number of input channels 1 Sample rate (Max) (kSPS) 125 Interface SPI Architecture SAR Input type Pseudo-Differential, Single-Ended Multi-channel configuration Rating Catalog Reference mode Ext Input range (Max) (V) 5.25 Input range (Min) (V) 0 Features Operating temperature range (C) -40 to 85 Power consumption (Typ) (mW) 0.6 Analog voltage AVDD (Min) (V) 2.7 Analog voltage AVDD (Max) (V) 5.25 INL (Max) (+/-LSB) 1.25 Digital supply (Min) (V) 2.7 Digital supply (Max) (V) 5.25 Approx. price (US$) 1.32 | 1ku open-in-new Find other Precision ADCs (<=10MSPS)

Package | Pins | Size

VSON (DRB) 8 9 mm² 3.0 x 3.0 open-in-new Find other Precision ADCs (<=10MSPS)


  • High Throughput at Low Supply Voltage (2.7 V VCC)
    • ADS7829: 12-bit 125 KSPS
    • ADS7826: 10-bit 200 KSPS
    • ADS7827: 8-bit 250 KSPS
  • Very Wide Operating Supply VoltageL: 2.7 V to 5.25 V (as Low as 2.0 V With Reduced Performance)
  • Rail-to-Rail, Pseudo Differential Input
  • Wide Reference Voltage: 50 mV to VCC
  • Micropower Auto Power-Down:
    • Less Than 60 µW at 75 kHz, 2.7 V VCC
  • Low Power Down Current: 3 µA Max
  • Ultra Small Chip Scale Package: 8-pin 3 x 3 PDSO (SON, Same Size as QFN)
  • SPI™ Compatible Serial Interface
    • Battery Operated Systems
    • Remote Data Acquisition
    • Isolated Data Acquisition
    • Simultaneous Sampling, Multichannel Systems

microPOWER is a trademark of Texas Instruments.

open-in-new Find other Precision ADCs (<=10MSPS)


The ADS7826/27/29 is a family of 10/8/12-bit sampling analog-to-digital converters (A/D) with assured specifications at 2.7-V supply voltage. It requires very little power even when operating at the full sample rate. At lower conversion rates, the high speed of the device enables it to spend most of its time in the power down mode—the power dissipation is less than 60 µW at 7.5 kHz.

The ADS7826/27/29 also features operation from 2.0 V to 5 V, a synchronous serial interface, and a differential input. The reference voltage can be set to any level within the range of 50 mV to VCC.

Ultra-low power and small package size make the ADS7826/27/29 family ideal for battery operated systems. It is also a perfect fit for remote data acquisition modules, simultaneous multichannel systems, and isolated data acquisition. The ADS7826/27/29 family is available in a 3 x 3 8-pin PDSO (SON, same size as QFN) package.

open-in-new Find other Precision ADCs (<=10MSPS)

Technical documentation

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Type Title Date
* Datasheet 10/8/12-Bit High Speed 2.7V microPower? Sampling Analog-to-Digital Converter datasheet Jun. 27, 2003
More literature Best of Baker's Best: Precision Data Converters -- SAR ADCs May 21, 2015
Application notes Determining Minimum Acquisition Times for SAR ADCs, part 2 Mar. 17, 2011
Application notes Determining Minimum Acquisition Times for SAR ADCs, part 1 (Rev. A) Nov. 10, 2010

Design & development

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

Hardware development


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 (...)

Software development

DCPFREETOOL Software Plug-In to Code Composer Studio
DCPFREETOOL The data converter support plug-in is a free tool, which allows the user of Code Composer Studio™ to create initialization data and configuration software for Texas Instruments data converters based on inputs on a graphical user interface.

IMPORTANT: Please read the following before downloading the (...)


The data converter support plug-in (DCP) is a component of TI's Code Composer Studio™ and offers easy-to-use windows for the "point-and-click" configuration of TI's data converters from within the integrated development environment (IDE), preventing illegal combinations of settings. The DCP (...)

Design tools & simulation

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
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 (...)
  • 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
  • (...)

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