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ADS8555

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630-kSPS, 16-bit, six-channel, simultaneous-sampling analog-to-digital converter (ADC)

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Data sheet

ADS8555

ACTIVE
Data sheet Order now

Product details

Resolution (Bits) 16 Sample rate (max) (ksps) 630 Number of input channels 6 Interface type Byte-Wide, Parallel, SPI Architecture SAR Input type Single-ended Multichannel configuration Simultaneous Sampling Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 12 Input voltage range (min) (V) -12 Features Daisy-Chainable, Oscillator Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 335 Analog supply voltage (min) (V) 4.5 Analog supply voltage (max) (V) 5.5 SNR (dB) 91.5 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.5
Resolution (Bits) 16 Sample rate (max) (ksps) 630 Number of input channels 6 Interface type Byte-Wide, Parallel, SPI Architecture SAR Input type Single-ended Multichannel configuration Simultaneous Sampling Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 12 Input voltage range (min) (V) -12 Features Daisy-Chainable, Oscillator Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 335 Analog supply voltage (min) (V) 4.5 Analog supply voltage (max) (V) 5.5 SNR (dB) 91.5 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.5
LQFP (PM) 64 144 mm² 12 x 12
  • Six SAR ADCs Grouped in Three Pairs
  • Maximum Data Rate Per Channel With Internal Clock and Reference: 630 kSPS (Parallel) or 450 kSPS (Serial)
  • Maximum Data Rate Per Channel With External Clock and Reference: 800 kSPS (Parallel) or 500 kSPS (Serial)
  • Pin-Selectable or Programmable Input Voltage Ranges: Up to ±12 V
  • Excellent AC Performance: 91.5-dB SNR, –94-dB THD
  • Programmable and Buffered Internal Reference: 0.5 V to 2.5 V and 0.5 V to 3 V
  • Comprehensive Power-Down Modes:
    • Deep Power Down (Standby Mode)
    • Auto-Nap Power Down
  • Selectable Parallel or Serial Interface
  • Operating Temperature Range: –40°C to 125°C
  • LQFP-64 Package

All other trademarks are the property of their respective owners

  • APPLICATIONS
    • Power Quality Measurements
    • Protection Relays
    • Multi-Axis Motor Controls
    • Programmable Logic Controllers
    • Industrial Data Acquisition
    •
    • Six SAR ADCs Grouped in Three Pairs
    • Maximum Data Rate Per Channel With Internal Clock and Reference: 630 kSPS (Parallel) or 450 kSPS (Serial)
    • Maximum Data Rate Per Channel With External Clock and Reference: 800 kSPS (Parallel) or 500 kSPS (Serial)
    • Pin-Selectable or Programmable Input Voltage Ranges: Up to ±12 V
    • Excellent AC Performance: 91.5-dB SNR, –94-dB THD
    • Programmable and Buffered Internal Reference: 0.5 V to 2.5 V and 0.5 V to 3 V
    • Comprehensive Power-Down Modes:
      • Deep Power Down (Standby Mode)
      • Auto-Nap Power Down
    • Selectable Parallel or Serial Interface
    • Operating Temperature Range: –40°C to 125°C
    • LQFP-64 Package

    All other trademarks are the property of their respective owners

  • APPLICATIONS
    • Power Quality Measurements
    • Protection Relays
    • Multi-Axis Motor Controls
    • Programmable Logic Controllers
    • Industrial Data Acquisition
    •

    The ADS8555 device contains six low-power, 16-bit, successive approximation register (SAR)-based analog-to-digital converters (ADCs) with true bipolar inputs. Each channel contains a sample-and-hold circuit that allows simultaneous high-speed multi-channel signal acquisition.

    The ADS8555 device supports data rates of up to 630 kSPS in parallel interface mode or up to 450 kSPS if the serial interface is used. The bus width of the parallel interface can be set to eight or 16 bits. In serial mode, up to three output channels can be activated.

    The ADS8555 device is specified over the extended industrial temperature range of –40°C to 125°C and is available in an LQFP-64 package.

    The ADS8555 device contains six low-power, 16-bit, successive approximation register (SAR)-based analog-to-digital converters (ADCs) with true bipolar inputs. Each channel contains a sample-and-hold circuit that allows simultaneous high-speed multi-channel signal acquisition.

    The ADS8555 device supports data rates of up to 630 kSPS in parallel interface mode or up to 450 kSPS if the serial interface is used. The bus width of the parallel interface can be set to eight or 16 bits. In serial mode, up to three output channels can be activated.

    The ADS8555 device is specified over the extended industrial temperature range of –40°C to 125°C and is available in an LQFP-64 package.
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    Technical documentation

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    Top documentation Type Title Format options Date
    * Data sheet ADS8555 16-Bit, Six-Channel, Simultaneous Sampling Analog-to-Digital Converter datasheet (Rev. D) PDF | HTML 03 Feb 2016
    White paper 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
    Application note Driver Circuit Design Considerations for ADS855x 27 Aug 2012
    Application note Determining Minimum Acquisition Times for SAR ADCs, part 2 17 Mar 2011

    Design & development

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

    Evaluation board

    ADS8555EVM-PDK — ADS8555 evaluation module for six-channel simultaneous-sampling ADCs

    The ADS8555 evaluation module (EVM) performance demonstration kit (PDK) is a platform for evaluating the ADS855x family of six-channel simultaneous-sampling analog-to-digital converters (ADCs). ADS855x products include an integrated voltage reference and can accommodate ±12-V inputs.

    ADS8555EVM-PDK (...)

    User guide: PDF | HTML
    Not available on TI.com
    Simulation model

    ADS8555/6/7/8 IBIS Model (Rev. B)

    SBAM011B.ZIP (80 KB) - IBIS Model
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    Calculation tool

    ANALOG-ENGINEER-CALC — PC software 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 (...)

    Supported products & hardware

    Supported products & hardware
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    Design tool

    ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.

    The ADC-TO-VREF-SELECT tool enables the pairing of TI analog-to-digital converters (ADCs) and series voltage references. Users can select an ADC device and the desired reference voltage, and the tool will list up to two voltage reference recommendations.
    Supported products & hardware

    Supported products & hardware
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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 (...)
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