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ADS8860

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16-bit, 1-MSPS, 1-channel SAR ADC with single-ended input, SPI and daisy chain

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Data sheet

ADS8860

ACTIVE
Data sheet Order now

Product details

Resolution (Bps) 16 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) 5.5 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 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) 5.5 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: 1 MHz
  • 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:
    • 5.5 mW at 1 MSPS
    • 0.55 mW at 100 kSPS
    • 55 µW at 10 kSPS
  • Power-down current (AVDD): 50 nA
  • Full-scale step settling to 16 Bits: 290 ns
  • Packages: VSSOP-10 and VSON-10
  • Sample rate: 1 MHz
  • 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:
    • 5.5 mW at 1 MSPS
    • 0.55 mW at 100 kSPS
    • 55 µW at 10 kSPS
  • Power-down current (AVDD): 50 nA
  • Full-scale step settling to 16 Bits: 290 ns
  • Packages: VSSOP-10 and VSON-10

The ADS8860 is a 16-bit, 1-MSPS, 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 ADS8860 excellent for lower-speed applications.

The ADS8860 is a 16-bit, 1-MSPS, 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 ADS8860 excellent for lower-speed applications.

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Technical documentation

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Type Title Date
* Data sheet ADS8860 16-bit, 1-MSPS, serial interface, micropower, miniature, single-ended input, SAR analog-to-digital converter datasheet (Rev. B) PDF | HTML 27 Feb 2019
More literature Bridge Sensor Solution (Rev. A) PDF | HTML 27 Jan 2023
Application note Understanding and Using SAR ADC SPICE Micromodel PDF | HTML 23 Nov 2021
Analog Design Journal Optimizing input and output transient settling times in amplifier circuits PDF | HTML 18 Nov 2021
EVM User's guide ADS8860EVM-PDK User's Guide (Rev. A) PDF | HTML 08 Jul 2020
Circuit design Circuit to drive a switched capacitor reference input for high-precision devices 17 Jun 2019
Circuit design Charge pump circuit (–0.3V) for negative amplifier supply 16 Jun 2019
Circuit design Noninverting circuit for high-to-low voltage level translation to drive ADC 16 Jun 2019
Circuit design Inverting circuit for high-to-low voltage level translation to drive ADC 15 Jun 2019
Circuit design Circuit for protecting low-voltage SAR ADC from electrical overstress with minim 25 May 2019
Circuit design Circuit for driving a switched-capacitor SAR ADC w/ a buffered instrument amp (Rev. A) 08 Mar 2019
Circuit design Circuit for driving a switched-capacitor SAR ADC with an instrumentation amp (Rev. A) 07 Mar 2019
Circuit design Circuit for driving a high-voltage SAR with an instrumentation amplifier 04 Oct 2018
More literature TI Precision Labs Pro – Session 5 Files 02 Aug 2018
More literature TI Precision Labs Pro – Session 6 Files 02 Aug 2018
More literature TI Precision Labs Pro – Session 4 Files 12 Jun 2018
More literature TI Precision Labs Pro – Session 2 Files (Rev. A) 20 Apr 2018
More literature TI Precision Labs Pro – Session 3 Files 20 Apr 2018
More literature TI Precision Labs Pro – Session 1 Files (Rev. B) 05 Mar 2018
White paper Voltage-reference impact on total harmonic distortion 01 Aug 2016
Technical article 2 steps to achieve 16-bit settling for your high-throughput data-acquisition system 05 Jun 2015
E-book Best of Baker's Best: Precision Data Converters -- SAR ADCs 21 May 2015
Technical article 16-bit settling for your high-throughput data acquisition system 08 May 2015
Technical article Leverage coherent sampling and FFT windows when evaluating SAR ADCs (Part 1) 13 Mar 2015
Technical article Using SAR ADC TINA Models: Much ado about settling 12 Dec 2014

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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Support software

Source files for SBAA245

SBAC182.ZIP (74 KB)
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Support software

Source Files for SBAA277

SBAC184.ZIP (81 KB)
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Support software

Source Files for SBAA372

SBAC249.ZIP (51 KB)
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Support software

Source Files for SBAA374

SBAC250.ZIP (48 KB)
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Support software

Source files for SBAA375

SBAC251.ZIP (50 KB)
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Simulation model

ADS8860 PSpice Model (Rev. C)

SBAM454C.ZIP (1413 KB) - PSpice Model
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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

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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Gerber file

Source Files PCB Design for Good EMC

SBAC302.ZIP (37280 KB)
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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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Reference designs

TIPD173 — 16 bit 1MSPS Data Acquisition Reference Design for Single-Ended Multiplexed Applications

This TI Precision Verified Design details a systematic design methodology for a 16 bit, 1MSPS, single-ended data acquisition (DAQ) block optimized to achieve excellent settling time, power consumption, static performance and dynamic performance for multiplexed applications.  The design (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIPD169 — 16-Bit, 1MSPS Multiplexed Data Acquisition Reference Design

This design is for a 16-bit 1MSPS single-ended, multiplexed data acquisition system (DAQ) for dc inputs. The system is composed of a 16-bit successive-approximation-register (SAR) analog-to-digital converter (ADC), SAR ADC driver, reference driver, and multiplexer. The design shows the process to (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIPD149 — Power-optimized 16-bit 1MSPS Data Acquisition Block for Lowest Distortion and Noise Reference Design

This TI Verified Design is the realization of a high precision, 16-bit 1MSPS data acquisition system suitable for applications such as digital audio that require front-ends with very low distortion and noise. The circuit uses a high performance Successive Approximation Register Analog to Digital (...)
User guide: PDF
Schematic: PDF
Package Pins Download
VSON (DRC) 10 View options
VSSOP (DGS) 10 View options

Ordering & quality

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