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Product details

Parameters

Resolution (Bits) 16 Number of input channels 1 Sample rate (Max) (kSPS) 1000 Interface type SPI Architecture SAR Input type Single-Ended Multi-channel configuration Rating Catalog Reference mode Ext Input range (Max) (V) 5 Input range (Min) (V) 0 Features Daisy-Chainable, Oscillator, Small Size Operating temperature range (C) -40 to 85 Power consumption (Typ) (mW) 5.5 Analog voltage AVDD (Min) (V) 2.7 SNR (dB) 93 Analog voltage AVDD (Max) (V) 3.6 INL (Max) (+/-LSB) 2 Digital supply (Min) (V) 1.65 Digital supply (Max) (V) 3.6 open-in-new Find other Precision ADCs (<=10MSPS)

Package | Pins | Size

VSON (DRC) 10 9 mm² 3 x 3 VSSOP (DGS) 10 9 mm² 3 x 3 open-in-new Find other Precision ADCs (<=10MSPS)

Features

  • 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

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Description

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

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet ADS8860 16-bit, 1-MSPS, serial interface, micropower, miniature, single-ended input, SAR analog-to-digital converter datasheet (Rev. B) Feb. 27, 2019
User guides ADS8860EVM-PDK User's Guide (Rev. A) Jul. 08, 2020
Application notes Circuit to drive a switched capacitor reference input for high-precision devices Jun. 17, 2019
Application notes Charge pump circuit (–0.3V) for negative amplifier supply Jun. 16, 2019
Application notes Noninverting circuit for high-to-low voltage level translation to drive ADC Jun. 16, 2019
Application notes Inverting circuit for high-to-low voltage level translation to drive ADC Jun. 15, 2019
Application notes Circuit for protecting low-voltage SAR ADC from electrical overstress with minim May 25, 2019
Application notes Circuit for driving a switched-capacitor SAR ADC w/ a buffered instrument amp (Rev. A) Mar. 08, 2019
Application notes Circuit for driving a switched-capacitor SAR ADC with an instrumentation amp (Rev. A) Mar. 07, 2019
Application notes Circuit for driving a high-voltage SAR with an instrumentation amplifier Oct. 04, 2018
More literature TI Precision Labs Pro – Session 5 Files Aug. 02, 2018
More literature TI Precision Labs Pro – Session 6 Files Aug. 02, 2018
More literature TI Precision Labs Pro – Session 4 Files Jun. 12, 2018
More literature TI Precision Labs Pro – Session 2 Files (Rev. A) Apr. 20, 2018
More literature TI Precision Labs Pro – Session 3 Files Apr. 20, 2018
More literature TI Precision Labs Pro – Session 1 Files (Rev. B) Mar. 05, 2018
White papers Voltage-reference impact on total harmonic distortion Aug. 01, 2016
Technical articles 2 steps to achieve 16-bit settling for your high-throughput data-acquisition system Jun. 05, 2015
White papers Best of Baker's Best: Precision Data Converters -- SAR ADCs May 21, 2015
Technical articles 16-bit settling for your high-throughput data acquisition system May 08, 2015
Technical articles Using SAR ADC TINA Models: Much ado about settling Dec. 12, 2014
Technical articles Using SAR ADC TINA Models: Static behavior, power scaling Dec. 05, 2014

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
Description

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 (...)

Features
  • Includes hardware and software required for diagnostic testing, as well as accurate performance evaluation of the ADS8860 ADC
  • No external power supply required
  • Ships with PHI controller board, which provides convenient interface to the EVM over USB 2.0 (or higher) for power delivery and digital (...)
EVALUATION BOARDS Download
document-generic User guide
499
Description

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 (...)

Features
  • Intuitive setup – PCB overlay shows the schematic
  • No external power supply required
  • Includes several coupon boards with different driving amplifier RC filters to facilitate experimentation
  • Ships with PHI controller - provides convenient interface to EVM over USB 2.0 (or higher) for power delivery (...)

Software development

SUPPORT SOFTWARE Download
SBAC182.ZIP (74 KB)
SUPPORT SOFTWARE Download
SBAC184.ZIP (81 KB)
SUPPORT SOFTWARE Download
SBAC249.ZIP (51 KB)
SUPPORT SOFTWARE Download
SBAC250.ZIP (48 KB)
SUPPORT SOFTWARE Download
SBAC251.ZIP (50 KB)

Design tools & simulation

SIMULATION MODELS Download
SBAM172.ZIP (35 KB) - IBIS Model
SIMULATION MODELS Download
SBAM179.ZIP (157 KB) - TINA-TI Reference Design
SIMULATION TOOLS Download
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 (...)
Features
  • 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
  • (...)
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-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 (...)
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
  • (...)

Reference designs

REFERENCE DESIGNS Download
16 bit 1MSPS Data Acquisition Reference Design for Single-Ended Multiplexed Applications
TIPD173 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 features (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
16-Bit, 1MSPS Multiplexed Data Acquisition Reference Design
TIPD169 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 (...)
document-generic Schematic document-generic User guide
Design files
REFERENCE DESIGNS Download
Power-optimized 16-bit 1MSPS Data Acquisition Block for Lowest Distortion and Noise Reference Design
TIPD149 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 (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
VSON (DRC) 10 View options
VSSOP (DGS) 10 View options

Ordering & quality

Support & training

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