Product details

Resolution (Bits) 12 Number of input channels 1 Sample rate (Max) (kSPS) 40 Interface type SPI Architecture SAR Input type Single-Ended Multi-channel configuration Rating Catalog Reference mode Ext, Int Input range (Max) (V) 10 Input range (Min) (V) -10 Features Operating temperature range (C) -40 to 85 Power consumption (Typ) (mW) 35 Analog voltage AVDD (Min) (V) 4.75 SNR (dB) 74 Analog voltage AVDD (Max) (V) 5.25 INL (Max) (+/-LSB) 0.5 Digital supply (Min) (V) 4.75 Digital supply (Max) (V) 5.25
Resolution (Bits) 12 Number of input channels 1 Sample rate (Max) (kSPS) 40 Interface type SPI Architecture SAR Input type Single-Ended Multi-channel configuration Rating Catalog Reference mode Ext, Int Input range (Max) (V) 10 Input range (Min) (V) -10 Features Operating temperature range (C) -40 to 85 Power consumption (Typ) (mW) 35 Analog voltage AVDD (Min) (V) 4.75 SNR (dB) 74 Analog voltage AVDD (Max) (V) 5.25 INL (Max) (+/-LSB) 0.5 Digital supply (Min) (V) 4.75 Digital supply (Max) (V) 5.25
PDIP (N) 16 181 mm² 19.3 x 9.4 SOIC (DW) 16 77 mm² 7.52 x 10.28
  • 20µs max CONVERSION TIME
  • SINGLE +5V SUPPLY OPERATION
  • PIN-COMPATIBLE WITH 16-BIT ADS7813
  • EASY-TO-USE SERIAL INTERFACE
  • 0.3" DIP-16 AND SO-16
  • ±0.5LSB max INL AND DNL
  • 72dB min SINAD
  • USES INTERNAL OR EXTERNAL REFERENCE
  • MULTIPLE INPUT RANGES
  • 35mW max POWER DISSIPATION
  • NO MISSING CODES
  • 50µW POWER DOWN MODE
  • APPLICATIONS
    • DATA ACQUISITION SYSTEMS
    • INDUSTRIAL CONTROL
    • TEST EQUIPMENT
    • DIGITAL SIGNAL PROCESSING

Note: Recommended Voltage Reference: REF02 and REF102
All trademarks are the property of their respective owners.

  • 20µs max CONVERSION TIME
  • SINGLE +5V SUPPLY OPERATION
  • PIN-COMPATIBLE WITH 16-BIT ADS7813
  • EASY-TO-USE SERIAL INTERFACE
  • 0.3" DIP-16 AND SO-16
  • ±0.5LSB max INL AND DNL
  • 72dB min SINAD
  • USES INTERNAL OR EXTERNAL REFERENCE
  • MULTIPLE INPUT RANGES
  • 35mW max POWER DISSIPATION
  • NO MISSING CODES
  • 50µW POWER DOWN MODE
  • APPLICATIONS
    • DATA ACQUISITION SYSTEMS
    • INDUSTRIAL CONTROL
    • TEST EQUIPMENT
    • DIGITAL SIGNAL PROCESSING

Note: Recommended Voltage Reference: REF02 and REF102
All trademarks are the property of their respective owners.

The ADS7812 is a low-power, single +5V supply, 12-bit sampling analog-to-digital converter. It contains a complete 12-bit capacitor-based SAR A/D with a sample/hold, clock, reference, and serial data interface.

The converter can be configured for a variety of input ranges including ±10V, ±5V, 0V to 10V, and 0.5V to 4.5V. A high impedance 0.3V to 2.8V input range is also available (input impedance > 10M). For most input ranges, the input voltage can swing to +16.5V or –16.5V without damage to the converter.

A flexible SPI compatible serial interface allows data to be synchronized to an internal or external clock. The ADS7812 is specified at a 40kHz sampling rate over the –40°C to +85°C temperature range. It is available in a 0.3" DIP-16 or an SO-16 package.

The ADS7812 is a low-power, single +5V supply, 12-bit sampling analog-to-digital converter. It contains a complete 12-bit capacitor-based SAR A/D with a sample/hold, clock, reference, and serial data interface.

The converter can be configured for a variety of input ranges including ±10V, ±5V, 0V to 10V, and 0.5V to 4.5V. A high impedance 0.3V to 2.8V input range is also available (input impedance > 10M). For most input ranges, the input voltage can swing to +16.5V or –16.5V without damage to the converter.

A flexible SPI compatible serial interface allows data to be synchronized to an internal or external clock. The ADS7812 is specified at a 40kHz sampling rate over the –40°C to +85°C temperature range. It is available in a 0.3" DIP-16 or an SO-16 package.

Download

Technical documentation

star = Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 6
Type Title Date
* Data sheet ADS7812: Low-Power, Serial 12-Bit Sampling Analog-To-Digital Converter datasheet (Rev. A) 16 Sep 2003
* Errata Errata: ADS78xx 22 Oct 2012
E-book Best of Baker's Best: Precision Data Converters -- SAR ADCs 21 May 2015
Application note Determining Minimum Acquisition Times for SAR ADCs, part 2 17 Mar 2011
Application note Determining Minimum Acquisition Times for SAR ADCs, part 1 (Rev. A) 10 Nov 2010
User guide DEM-ADS7812: Demonstration Fixture 27 Sep 2000

Design & development

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

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 (...)
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 (...)
Calculation tool

ADC-INPUT-CALC — Analog-to-digital converter (ADC) input driver design tool supporting multiple input types

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 (...)
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 op-amp gain with feedback (...)
lock = Requires export approval (1 minute)
Design tool

ADC-TO-VREF-SELECT — ADC to series voltage reference selection tool

The ADC-TO-VREF-SELECT tool enables the pairing of TI analog-to-digital converters (ADCs) and series voltage references. Users can select an ADC device and the desired input voltage, and the tool will list the top three voltage reference recommendations. There is also an option to use (...)
Package Pins Download
PDIP (N) 16 View options
SOIC (DW) 16 View options

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

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