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ADS8862

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16-Bit, 680-kSPS, 1-Ch SAR ADC with Single-Ended Input, SPI Interface and Daisy-Chain

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Data sheet

ADS8862

ACTIVE
Data sheet Order now

Product details

Resolution (Bps) 16 Sample rate (max) (ksps) 680 Number of input channels 1 Interface type SPI Architecture SAR Input type Single-ended Rating Catalog Reference mode External Input voltage range (max) (V) 5 Input voltage range (min) (V) 0 Features Daisy-Chainable, Oscillator, Small Size Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 4.2 Analog supply (min) (V) 2.7 Analog supply (max) (V) 3.6 SNR (dB) 93 Digital supply (min) (V) 1.65 Digital supply (max) (V) 3.6
Resolution (Bps) 16 Sample rate (max) (ksps) 680 Number of input channels 1 Interface type SPI Architecture SAR Input type Single-ended Rating Catalog Reference mode External Input voltage range (max) (V) 5 Input voltage range (min) (V) 0 Features Daisy-Chainable, Oscillator, Small Size Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 4.2 Analog supply (min) (V) 2.7 Analog supply (max) (V) 3.6 SNR (dB) 93 Digital supply (min) (V) 1.65 Digital supply (max) (V) 3.6
VSON (DRC) 10 9 mm² 3 x 3 VSSOP (DGS) 10 14.7 mm² 3 x 4.9
  • Sample rate: 680 kHz
  • No latency output
  • Unipolar, single-ended input range:
    0 to +VREF
  • SPI™-compatible serial interface with
    daisy-chain option
  • Excellent AC and DC performance:
    • SNR: 93 dB, THD: –108 dB
    • INL: ±1.0 LSB (typ), ±2.0 LSB (max)
    • DNL: ±1.0 LSB (max), 16-Bit NMC
  • Wide operating range:
    • AVDD: 2.7 V to 3.6 V
    • DVDD: 1.65 V to 3.6 V
      (independent of AVDD)
    • REF: 2.5 V to 5 V (independent of AVDD)
    • Operating temperature: –40°C to +85°C
  • Low-power dissipation:
    • 4.2 mW at 680 kSPS
    • 0.6 mW at 100 kSPS
    • 60 µW at 10 kSPS
  • Power-down current (AVDD): 50 nA
  • Full-scale step settling to 16 Bits: 540 ns
  • Packages: VSSOP-10 and VSON-10
  • Sample rate: 680 kHz
  • No latency output
  • Unipolar, single-ended input range:
    0 to +VREF
  • SPI™-compatible serial interface with
    daisy-chain option
  • Excellent AC and DC performance:
    • SNR: 93 dB, THD: –108 dB
    • INL: ±1.0 LSB (typ), ±2.0 LSB (max)
    • DNL: ±1.0 LSB (max), 16-Bit NMC
  • Wide operating range:
    • AVDD: 2.7 V to 3.6 V
    • DVDD: 1.65 V to 3.6 V
      (independent of AVDD)
    • REF: 2.5 V to 5 V (independent of AVDD)
    • Operating temperature: –40°C to +85°C
  • Low-power dissipation:
    • 4.2 mW at 680 kSPS
    • 0.6 mW at 100 kSPS
    • 60 µW at 10 kSPS
  • Power-down current (AVDD): 50 nA
  • Full-scale step settling to 16 Bits: 540 ns
  • Packages: VSSOP-10 and VSON-10

The ADS8862 is a 16-bit, 680-kSPS, single-ended input, analog-to-digital converter (ADC). The device operates with a 2.5-V to 5-V external reference, offering a wide selection of signal ranges without additional input signal scaling. The reference voltage setting is independent of, and can exceed, the analog supply voltage (AVDD).

The device offers an SPI-compatible serial interface that also supports daisy-chain operation for cascading multiple devices. An optional busy-indicator bit makes synchronizing with the digital host easy.

The device supports unipolar single-ended analog inputs in the range of –0.1 V to VREF + 0.1 V.

Device operation is optimized for very low-power operation. Power consumption directly scales with speed. This feature makes the ADS8862 excellent for lower-speed applications.

The ADS8862 is a 16-bit, 680-kSPS, single-ended input, analog-to-digital converter (ADC). The device operates with a 2.5-V to 5-V external reference, offering a wide selection of signal ranges without additional input signal scaling. The reference voltage setting is independent of, and can exceed, the analog supply voltage (AVDD).

The device offers an SPI-compatible serial interface that also supports daisy-chain operation for cascading multiple devices. An optional busy-indicator bit makes synchronizing with the digital host easy.

The device supports unipolar single-ended analog inputs in the range of –0.1 V to VREF + 0.1 V.

Device operation is optimized for very low-power operation. Power consumption directly scales with speed. This feature makes the ADS8862 excellent for lower-speed applications.

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Technical documentation

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Type Title Date
* Data sheet ADS8862 16-bit, 680-kSPS, serial interface, micropower, miniature, single-ended input, SAR analog-to-digital converter datasheet (Rev. B) PDF | HTML 14 Feb 2019
More literature Understanding and Using SAR ADC SPICE Micromodel PDF | HTML 23 Nov 2021
Circuit design Circuit for protecting low-voltage SAR ADC from electrical overstress with minim 25 May 2019
More literature Voltage-reference impact on total harmonic distortion 01 Aug 2016
E-book Best of Baker's Best: Precision Data Converters -- SAR ADCs 21 May 2015
Technical article Leverage coherent sampling and FFT windows when evaluating SAR ADCs (Part 1) 13 Mar 2015

Design & development

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

Evaluation board

ADS8860EVM-PDK — ADS8860 16-bit, 1-MSPS, 1-channel SAR ADC evaluation module performance demonstration kit (PDK)

The ADS8860 evaluation module (EVM) performance demonstration kit (PDK) is an platform for evaluating the ADS8860 product, which is a successive approximation register (SAR) analog-to-digital converter (ADC).

The evaluation kit includes the ADS8860 evaluation board, precision host interface (PHI) (...)

User guide: PDF | HTML
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Evaluation board

PLABS-SAR-EVM-PDK — TI Precision Labs SAR ADC Evaluation Module Performance Demonstration Kit (PDK)

PLABS-SAR-EVM-PDK is an experimental platform used in conjunction with TI Precision Labs videos to gain a deeper understanding of successive approximation register (SAR) analog-to-digital converter (ADC) circuits. The evaluation module (EVM) platform contains two channels for common SAR (...)

User guide: PDF
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Simulation model

ADS8860 TINA-TI Reference Design (Rev. A)

SBAM179A.ZIP (90 KB) - TINA-TI Reference Design
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Simulation model

ADS8862 PSpice Transient Model

SBAM463.ZIP (167 KB) - PSpice Model
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Simulation model

ADS8862 TINA-TI Reference Design

SBAM468.ZIP (62 KB) - TINA-TI Reference Design
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Simulation model

ADS8881 IBIS Model

SBAM172.ZIP (35 KB) - IBIS Model
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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 (...)
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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 operational-amplifier (...)
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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 (...)
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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 (...)
User guide: PDF
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Package Pins Download
VSON (DRC) 10 View options
VSSOP (DGS) 10 View options

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