ADS7813

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Low-Power, Serial 16-Bit Sampling Analog-To-Digital Converter

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Product details

Parameters

Resolution (Bits) 16 Number of input channels 1 Sample rate (Max) (kSPS) 40 Interface 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) 89 Analog voltage AVDD (Max) (V) 5.25 INL (Max) (+/-LSB) 2 Digital supply (Min) (V) 4.75 Digital supply (Max) (V) 5.25 Approx. price (US$) 19.68 | 1ku open-in-new Find other Precision ADCs (<=10MSPS)

Package | Pins | Size

SOIC (DW) 16 77 mm² 7.52 x 10.28 open-in-new Find other Precision ADCs (<=10MSPS)

Features

  • 20µs max CONVERSION TIME
  • SINGLE +5V SUPPLY OPERATION
  • PIN-COMPATIBLE WITH 12-BIT ADS7812
  • EASY-TO-USE SERIAL INTERFACE
  • 0.3" DIP-16 AND SO-16
  • ±2.0LSB max INL
  • 87dB min SINAD
  • USES INTERNAL OR EXTERNAL REFERENCE
  • MULTIPLE INPUT RANGES
  • 35mW max POWER DISSIPATION
  • NO MISSING CODES
  • 50µW POWER DOWN MODE
  • APPLICATIONS
    • MEDICAL INSTRUMENTATION
    • DATA ACQUISITION SYSTEMS
    • ROBOTICS
    • INDUSTRIAL CONTROL
    • TEST EQUIPMENT
    • DIGITAL SIGNAL PROCESSING
    • DSP SERVO CONTROL

Note: Recommended Voltage Reference: REF02 and REF102
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open-in-new Find other Precision ADCs (<=10MSPS)

Description

The ADS7813 is a low-power, single +5V supply, 16-bit sampling analog-to-digital converter. It contains a complete 16-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 ADS7813 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.

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Technical documentation

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Type Title Date
* Datasheet Low-Power, Serial 16-Bit Sampling Analog-To-Digital Converter datasheet (Rev. C) Sep. 13, 2005
* Errata Errata: ADS78xx Oct. 22, 2012
White papers Voltage-reference impact on total harmonic distortion Aug. 01, 2016
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
Application notes Upgrading from the ADS7813 to the ADS8513 Dec. 03, 2007
User guides DEM-ADS7812: Demonstration Fixture Sep. 27, 2000

Design & development

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

Hardware development

EVALUATION BOARDS Download
Description

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 (...)

Design tools & simulation

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 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
  • (...)

CAD/CAE symbols

Package Pins Download
SOIC (DW) 16 View options

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