16-bit, 8-channel, simultaneous-sampling, bipolar-input, SAR analog-to-digital converter (ADC)


Product details


Resolution (Bits) 16 Number of input channels 8 Sample rate (Max) (kSPS) 500 Interface type Parallel, Byte-Wide, SPI Architecture SAR Input type Single-Ended Multi-channel configuration Simultaneous Sampling Rating Catalog Reference mode Ext, Int Input range (Max) (V) 12 Input range (Min) (V) -12 Features Daisy-Chainable, Oscillator Operating temperature range (C) -40 to 125 Power consumption (Typ) (mW) 335 Analog voltage AVDD (Min) (V) 4.5 SNR (dB) 91.5 Analog voltage AVDD (Max) (V) 5.5 INL (Max) (+/-LSB) 3 Digital supply (Min) (V) 2.7 Digital supply (Max) (V) 5.5 open-in-new Find other Precision ADCs (<=10MSPS)

Package | Pins | Size

LQFP (PM) 64 100 mm² 10 x 10 VQFN (RGC) 64 81 mm² 9 x 9 open-in-new Find other Precision ADCs (<=10MSPS)


  • Family of 12-, 14-, and 16-Bit, Pin- and Software-Compatible ADCs
  • Maximum Data Rate per Channel:
    • ADS8528: 650 kSPS (PAR) or
      480 kSPS (SER)
    • ADS8548: 600 kSPS (PAR) or
      450 kSPS (SER)
    • ADS8568: 510 kSPS (PAR) or
      400 kSPS (SER)
  • Excellent AC Performance:
    • Signal-to-Noise Ratio:
      ADS8528: 73.9 dB, ADS8548: 85 dB, ADS8568: 91.5 dB
    • Total Harmonic Distortion:
      ADS8528: –89 dB, ADS8548: –91 dB, ADS8568: –94 dB
  • Programmable, Buffered Internal Reference:
    0.5 V–2.5 V or 0.5 V–3.0 V Supports Input Voltage Ranges up to ±12 V
  • Selectable Parallel or Serial Interface
  • Scalable Low-Power Operation Using Auto-Sleep Mode: Only 32 mW at 10 kSPS
  • Fully Specified Over Extended Industrial Temperature Range

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


The ADS85x8 contain eight low-power, 12-, 14-, or 16-bit, successive approximation register (SAR)-based analog-to-digital converters (ADCs) with true bipolar inputs. These channels are grouped in four pairs, thus allowing simultaneous high-speed signal acquisition of up to 650 kSPS.

The devices support selectable parallel or serial interface with daisy-chain capability. The programmable reference allows handling of analog input signals with amplitudes up to ±12 V.

The ADS85x8 family supports an auto-sleep mode for minimum power dissipation and is available in both 64-pin VQFN and LQFP packages. The entire family is specified over a temperature range of –40°C to +125°C.

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

Technical documentation

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Type Title Date
* Data sheet ADS85x8 12-, 14-, and 16-Bit, 8-Channel, Simultaneous Sampling ADCs datasheet (Rev. C) Feb. 03, 2016
User guide ADS8568EVM-PDK Evaluation Module (Rev. E) May 04, 2021
Certificate ADS8568EVM-PDK EU RoHS Declaration of Conformity (DoC) (Rev. A) Feb. 23, 2021
Application note Circuit for driving high-voltage SAR ADCs for high-voltage, true diff signal acq (Rev. A) Mar. 08, 2019
Application note Circuit for driving a high-voltage SAR with an instrumentation amplifier Oct. 04, 2018
Application note Circuit for driving an ADC with an instrumentation amplifier in high gain Oct. 04, 2018
Application note Circuit for driving high-voltage SAR ADC with a buffered instrumentation Oct. 04, 2018
Selection guide TI Components for Aerospace and Defense Guide (Rev. E) Mar. 22, 2017
White paper Voltage-reference impact on total harmonic distortion Aug. 01, 2016
Technical article Settling time challenge and improvement tips Nov. 13, 2015
E-book Best of Baker's Best: Precision Data Converters -- SAR ADCs May 21, 2015
Application note ADS856x Design Challenges and Improvement Techniques for SAR Driver Circuit (Rev. A) May 18, 2015
Application note ADS8528, ADS8548, and ADS8568 Timing Considerations Jun. 21, 2014
Technical article Input considerations for SAR ADCs Jun. 20, 2014
Application note Determining Minimum Acquisition Times for SAR ADCs, part 2 Mar. 17, 2011

Design & development

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

Hardware development

document-generic User guide

ADCPro™ is a modular software system for evaluating analog-to-digital converters (ADCs) without the need for expensive logic analyzers and complex analysis routines. Used alone it is suitable for performing analysis on data sets captured from ADC testing; when paired with a Texas Instruments (...)


ADCPro software from Texas Instruments will simplify the tasks of collecting and analyzing ADC data, and ease evaluation. With it, you can easily set up an evaluation system that may not exactly replicate the manufacturer's system, but still arrive at meaningful results that can be compared to (...)

document-generic User guide

The ADS8568EVM is an evaluation platform for the ADS8568, a 16-bit, eight channel, simultaneous sampling, bipolar input analog-to-digital converter (ADC). The ADS8568EVM allows evaluation of all aspects of the ADS8568 device.


  • Full-featured evaluation board for the ADS8568 eight-channel simultaneous sampling, bipolar input ADC
  • Onboard external reference option
  • Supports serial or high-speed parallel interface modes

Software development

SBAC180.ZIP (180 KB)
SBAC215.ZIP (112 KB)
SBAC216.ZIP (48 KB)
SBAC217.ZIP (54 KB)

Design tools & simulation

SBAM096B.ZIP (81 KB) - IBIS Model
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
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-to-digital converter (ADC) input driver design tool supporting multiple input types
ADC-INPUT-CALC 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 (...)
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
  • (...)

CAD/CAE symbols

Package Pins Download
LQFP (PM) 64 View options
VQFN (RGC) 64 View options

Ordering & quality

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  • Lead finish/Ball material
  • MSL rating/Peak reflow
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  • Qualification summary
  • Ongoing reliability monitoring

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