Home Data converters Analog-to-digital converters (ADCs) Precision ADCs
Home
Data converters
Analog-to-digital converters (ADCs)
Precision ADCs

ADS7066

ACTIVE

Eight-channel, 250-kSPS, 16-bit analog-to-digital converter with internal reference, GPIOs and SPI

Order now
Data sheet

ADS7066

ACTIVE
Data sheet Order now

Product details

Resolution (Bits) 16 Sample rate (max) (ksps) 250 Number of input channels 8 Interface type SPI Architecture SAR Input type Single-ended Multichannel configuration Multiplexed Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 5.5 Input voltage range (min) (V) 0 Features Daisy-Chainable, GPIO, Small Size Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 4 Analog supply (min) (V) 3 Analog supply voltage (max) (V) 5.5 SNR (dB) 86 Digital supply (min) (V) 1.65 Digital supply (max) (V) 5.5
Resolution (Bits) 16 Sample rate (max) (ksps) 250 Number of input channels 8 Interface type SPI Architecture SAR Input type Single-ended Multichannel configuration Multiplexed Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 5.5 Input voltage range (min) (V) 0 Features Daisy-Chainable, GPIO, Small Size Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 4 Analog supply (min) (V) 3 Analog supply voltage (max) (V) 5.5 SNR (dB) 86 Digital supply (min) (V) 1.65 Digital supply (max) (V) 5.5
DSBGA (YBH) 16 0 mm² 0 x 0 WQFN (RTE) 16 9 mm² 3 x 3
  • Small solution size:
    • DSBGA and WQFN (preview) packages
    • Space-saving, capless, 2.5-V internal reference
  • 8 channels configurable as any combination of:
    • Up to 8 analog inputs, digital inputs, or digital outputs
  • Programmable averaging filters:
    • Programmable sample size for averaging
    • Averaging with internal conversions
    • 20-bit resolution for average output
  • Low-leakage multiplexer with channel sequencer:
    • Manual mode, on-the-fly mode, and auto-sequence mode
  • Excellent AC and DC performance:
    • SNR: 91.9 dB, THD: –100 dB
    • Improved SNR with programmable averaging filters
    • INL: ±1 LSB, 16-bit no missing codes
    • Internal calibration improves offset and drift
    • 250 kSPS sample rate with no latency
  • Wide operating range:
    • ADC input range: 0 V to V REF and 2 × V REF
    • Analog supply: 3 V to 5.5 V
    • Digital supply: 1.65 V to 5.5 V
    • Temperature range: –40°C to +125°C
  • Enhanced-SPI digital interface:
    • High-speed, 60-MHz SPI
  • Small solution size:
    • DSBGA and WQFN (preview) packages
    • Space-saving, capless, 2.5-V internal reference
  • 8 channels configurable as any combination of:
    • Up to 8 analog inputs, digital inputs, or digital outputs
  • Programmable averaging filters:
    • Programmable sample size for averaging
    • Averaging with internal conversions
    • 20-bit resolution for average output
  • Low-leakage multiplexer with channel sequencer:
    • Manual mode, on-the-fly mode, and auto-sequence mode
  • Excellent AC and DC performance:
    • SNR: 91.9 dB, THD: –100 dB
    • Improved SNR with programmable averaging filters
    • INL: ±1 LSB, 16-bit no missing codes
    • Internal calibration improves offset and drift
    • 250 kSPS sample rate with no latency
  • Wide operating range:
    • ADC input range: 0 V to V REF and 2 × V REF
    • Analog supply: 3 V to 5.5 V
    • Digital supply: 1.65 V to 5.5 V
    • Temperature range: –40°C to +125°C
  • Enhanced-SPI digital interface:
    • High-speed, 60-MHz SPI

The ADS7066 is a small, 16-bit, 8-channel, high-precision successive-approximation register (SAR) analog-to-digital converter (ADC). The ADS7066 has an integrated capless reference and a reference buffer that helps reduce the overall solution size by requiring fewer external components. The device family includes the ADS7067 (800 kSPS) and the ADS7066 (250 kSPS) speed variants.

The ADS7066 features built-in offset calibration for improved accuracy over wide operating conditions of the system. The programmable averaging filters enable higher resolution measurement. The eight channels of the ADS7066 can be individually configured as analog inputs, digital inputs, or digital outputs that simplify circuit design for mixed signal feedback and digital control.

The enhanced-SPI enables the ADS7066 in achieving high throughput at lower clock speeds, thereby simplifying the board layout and lowering system cost. The ADS7066 features a cyclic redundancy check (CRC) for data read and write operations and the power-up configuration.

The ADS7066 is a small, 16-bit, 8-channel, high-precision successive-approximation register (SAR) analog-to-digital converter (ADC). The ADS7066 has an integrated capless reference and a reference buffer that helps reduce the overall solution size by requiring fewer external components. The device family includes the ADS7067 (800 kSPS) and the ADS7066 (250 kSPS) speed variants.

The ADS7066 features built-in offset calibration for improved accuracy over wide operating conditions of the system. The programmable averaging filters enable higher resolution measurement. The eight channels of the ADS7066 can be individually configured as analog inputs, digital inputs, or digital outputs that simplify circuit design for mixed signal feedback and digital control.

The enhanced-SPI enables the ADS7066 in achieving high throughput at lower clock speeds, thereby simplifying the board layout and lowering system cost. The ADS7066 features a cyclic redundancy check (CRC) for data read and write operations and the power-up configuration.
open-in-new Find other Precision ADCs
Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Pin-for-pin with same functionality to the compared device
ADS7067 ACTIVE Eight-channel, 800-kSPS, 16-bit SAR analog-to-digital converter (ADC) with GPIOs and SPI ADS7067 is a higher-speed variant of ADS7066.

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 6
Type Title Date
* Data sheet ADS7066 Small, 8-Channel, 16-Bit, 250-kSPS SAR ADC With GPIOs datasheet (Rev. B) PDF | HTML 16 May 2023
Application note Implementation of CRC for ADS7066 PDF | HTML 20 Aug 2020
Certificate ADS7066EVM-PDK EU Declaration of Conformity (DoC) 12 Jun 2020
EVM User's guide ADS7066EVM-PDK Evaluation Module User's Guide (Rev. A) 15 May 2020
Application note Resolution-Boosting ADS7066 Using Programmable Averaging Filter PDF | HTML 27 Apr 2020
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

ADS7066EVM-PDK — ADS7066 performance demonstration kit for eight-channel, 250-kSPS, 16-bit, internal-reference ADC

The ADS7066 evaluation module (EVM) performance demonstration kit (PDK) is a platform for evaluating the performance of the ADS7066 successive approximation register (SAR) analog-to-digital converter (ADC)

The ADS7066EVM-PDK provides power and a communications card complete with a graphical user (...)

User guide: PDF
View options
Support software

ADS7066 Example C Code

SBAC272.ZIP (56 KB)
Download
Simulation model

ADS7066 IBIS Model

SBAM441.ZIP (71 KB) - IBIS Model
Download
Simulation model

ADS7066 TINA-TI Reference Design

SBAM445.TSC (22 KB) - TINA-TI Reference Design
Download
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 (...)
Design now
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 (...)
Download
Calculation tool

ADS7066 CRC Calculator

SBAR007.ZIP (36 KB)
Download
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 (...)
Request
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
View options
Package Pins Download
DSBGA (YBH) 16 View options
WQFN (RTE) 16 View options
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos