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Analog-to-digital converters (ADCs)
Precision ADCs (<=10MSPS)

ADS7066

ACTIVE

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

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Data sheet

ADS7066

ACTIVE
Data sheet Order now

Product details

Resolution (Bits) 16 Number of input channels 8 Sample rate (Max) (kSPS) 250 Interface type SPI Architecture SAR Input type Single-Ended Multi-channel configuration Multiplexed Rating Catalog Reference mode Ext, Int Input range (Max) (V) 5.5 Input range (Min) (V) 0 Features Daisy-Chainable, GPIO, Small Size Operating temperature range (C) -40 to 125 Power consumption (Typ) (mW) 4 Analog voltage AVDD (Min) (V) 3 SNR (dB) 86 Analog voltage AVDD (Max) (V) 5.5 INL (Max) (+/-LSB) 4 Digital supply (Min) (V) 1.65 Digital supply (Max) (V) 5.5
Resolution (Bits) 16 Number of input channels 8 Sample rate (Max) (kSPS) 250 Interface type SPI Architecture SAR Input type Single-Ended Multi-channel configuration Multiplexed Rating Catalog Reference mode Ext, Int Input range (Max) (V) 5.5 Input range (Min) (V) 0 Features Daisy-Chainable, GPIO, Small Size Operating temperature range (C) -40 to 125 Power consumption (Typ) (mW) 4 Analog voltage AVDD (Min) (V) 3 SNR (dB) 86 Analog voltage AVDD (Max) (V) 5.5 INL (Max) (+/-LSB) 4 Digital supply (Min) (V) 1.65 Digital supply (Max) (V) 5.5
DSBGA (YBH) 16 3 mm² 1.66 x 1.66
  • Small solution size:
    • 1.62-mm × 1.62-mm WCSP
    • 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
    • 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
    • High sample rate with no latency output:250 kSPS
  • Wide operating range:
    • ADC input range: 0 V to VREF and 2 x VREF
    • 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 interface
  • Small solution size:
    • 1.62-mm × 1.62-mm WCSP
    • 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
    • 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
    • High sample rate with no latency output:250 kSPS
  • Wide operating range:
    • ADC input range: 0 V to VREF and 2 x VREF
    • 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 interface

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 wafer-level-chip-scale package and fewer external components make this device suitable for space-constrained applications. 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 enable smaller system size and 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 wafer-level-chip-scale package and fewer external components make this device suitable for space-constrained applications. 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 enable smaller system size and 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.
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NEW 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

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Type Title Date
* Data sheet ADS7066 Small, 8-Channel, 16-Bit, 250-kSPS SAR ADC With GPIOs datasheet (Rev. A) PDF | HTML 26 Jun 2020
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

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 (...)

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Support software

ADS7066 Example C Code

SBAC272.ZIP (56 KB)
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Simulation model

ADS7066 IBIS Model

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

ADS7066 TINA-TI Reference Design

SBAM445.TSC (22 KB) - TINA-TI Reference Design
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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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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 op-amp gain with feedback (...)
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Calculation tool

ADS7066 CRC Calculator

SBAR007.ZIP (36 KB)
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Package Pins Download
DSBGA (YBH) 16 View options

Ordering & quality

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