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ADS8327

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2.7V-to-5.5V 16-Bit 500kSPS Serial Analog-to-Digital Converter (ADC)

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Data sheet

ADS8327

ACTIVE
Data sheet Order now

Product details

Resolution (Bits) 16 Number of input channels 1 Sample rate (Max) (kSPS) 500 Interface type SPI Architecture SAR Input type Single-Ended Rating Catalog Reference mode Ext Input range (Max) (V) 5.5 Input range (Min) (V) 0 Features Daisy-Chainable, Oscillator Operating temperature range (C) -40 to 85 Power consumption (Typ) (mW) 10.6 Analog voltage AVDD (Min) (V) 2.7 SNR (dB) 91 Analog voltage AVDD (Max) (V) 5.5 INL (Max) (+/-LSB) 2 Digital supply (Min) (V) 1.65 Digital supply (Max) (V) 5.5
Resolution (Bits) 16 Number of input channels 1 Sample rate (Max) (kSPS) 500 Interface type SPI Architecture SAR Input type Single-Ended Rating Catalog Reference mode Ext Input range (Max) (V) 5.5 Input range (Min) (V) 0 Features Daisy-Chainable, Oscillator Operating temperature range (C) -40 to 85 Power consumption (Typ) (mW) 10.6 Analog voltage AVDD (Min) (V) 2.7 SNR (dB) 91 Analog voltage AVDD (Max) (V) 5.5 INL (Max) (+/-LSB) 2 Digital supply (Min) (V) 1.65 Digital supply (Max) (V) 5.5
TSSOP (PW) 16 22 mm² 4.4 x 5 VQFN (RSA) 16 16 mm² 4 x 4
  • 2.7-V to 5.5-V Analog Supply, Low Power:
    • 10.6 mW (500 kHz, +VA = 2.7 V,
      +VBD = 1.8 V)
  • 500-kHz Sampling Rate
  • Excellent DC Performance
    • ±1.5 LSB Typ, ±2 LSB Max INL
    • ±0.6 LSB Typ, ±1 LSB Max DNL
    • 16-Bit NMC Over Temperature
    • ±0.5 mV Max Offset Error at 2.7 V
    • ±1 mV Max Offset Error at 5 V
  • Excellent AC Performance at fI = 10 kHz with 91 dB SNR, 100 dB SFDR, –96 dB THD
  • Built-In Conversion Clock (CCLK)
  • 1.65 V to 1.5×(+VA) I/O Supply
    • SPI/DSP Compatible Serial
    • SCLK up to 50 MHz
  • Comprehensive Power-Down Modes:
    • Deep Power-Down
    • Nap Power-Down
    • Auto Nap Power-Down
  • Unipolar Input Range: 0 V to VREF
  • Software Reset
  • Global CONVST (Independent of CS)
  • Programmable Status/Polarity EOC/INT
  • 16-Pin 4×4 QFN or 16-Pin TSSOP Packages
  • Multi-Chip Daisy Chain Mode
  • Programmable TAG Bit Output
  • Auto/Manual Channel Select Mode
  • APPLICATIONS
    • Communications
    • Transducer Interface
    • Medical Instruments
    • Magnetometers
    • Industrial Process Control
    • Data Acquisition Systems
    • Automatic Test Equipment
    • 2.7-V to 5.5-V Analog Supply, Low Power:
      • 10.6 mW (500 kHz, +VA = 2.7 V,
        +VBD = 1.8 V)
    • 500-kHz Sampling Rate
    • Excellent DC Performance
      • ±1.5 LSB Typ, ±2 LSB Max INL
      • ±0.6 LSB Typ, ±1 LSB Max DNL
      • 16-Bit NMC Over Temperature
      • ±0.5 mV Max Offset Error at 2.7 V
      • ±1 mV Max Offset Error at 5 V
    • Excellent AC Performance at fI = 10 kHz with 91 dB SNR, 100 dB SFDR, –96 dB THD
    • Built-In Conversion Clock (CCLK)
    • 1.65 V to 1.5×(+VA) I/O Supply
      • SPI/DSP Compatible Serial
      • SCLK up to 50 MHz
    • Comprehensive Power-Down Modes:
      • Deep Power-Down
      • Nap Power-Down
      • Auto Nap Power-Down
    • Unipolar Input Range: 0 V to VREF
    • Software Reset
    • Global CONVST (Independent of CS)
    • Programmable Status/Polarity EOC/INT
    • 16-Pin 4×4 QFN or 16-Pin TSSOP Packages
    • Multi-Chip Daisy Chain Mode
    • Programmable TAG Bit Output
    • Auto/Manual Channel Select Mode
  • APPLICATIONS
    • Communications
    • Transducer Interface
    • Medical Instruments
    • Magnetometers
    • Industrial Process Control
    • Data Acquisition Systems
    • Automatic Test Equipment

    The ADS8327 is a low power, 16-bit, 500-kSPS analog-to-digital converter with a unipolar input. The device includes a 16-bit capacitor-based SAR A/D converter with inherent sample and hold.

    The ADS8328 is based on the same core and includes a 2-to-1 input MUX with programmable option of TAG bit output. Both the ADS8327 and ADS8328 offer a high-speed, wide voltage serial interface and are capable of chain mode operation when multiple converters are used.

    These converters are available in a 16-lead TSSOP or 4×4 QFN packages and are fully specified for operation over the industrial –40°C to +85°C temperature range.

    The ADS8327 is a low power, 16-bit, 500-kSPS analog-to-digital converter with a unipolar input. The device includes a 16-bit capacitor-based SAR A/D converter with inherent sample and hold.

    The ADS8328 is based on the same core and includes a 2-to-1 input MUX with programmable option of TAG bit output. Both the ADS8327 and ADS8328 offer a high-speed, wide voltage serial interface and are capable of chain mode operation when multiple converters are used.

    These converters are available in a 16-lead TSSOP or 4×4 QFN packages and are fully specified for operation over the industrial –40°C to +85°C temperature range.
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    Technical documentation

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    Type Title Date
    * Data sheet Low Power, 16-Bit, 500-kHz, Single/Dual Unipolar Input, ADC w/Serial I/F datasheet (Rev. E) 27 Jan 2011
    Technical article Balancing ADC size, power, resolution and bandwidth in precision data-acquisition systems 03 Dec 2021
    White paper Voltage-reference impact on total harmonic distortion 01 Aug 2016
    Technical article Four ways to improve your ADC system power supply rejection 25 Jun 2015
    E-book Best of Baker's Best: Precision Data Converters -- SAR ADCs 21 May 2015
    Technical article Leverage coherent sampling and FFT windows when evaluating SAR ADCs (Part 1) 13 Mar 2015
    Technical article Delta-sigma ADC basics: Walking around the delta-sigma blocks 03 Mar 2015
    Application note Determining Minimum Acquisition Times for SAR ADCs, part 2 17 Mar 2011
    Application note Determining Minimum Acquisition Times for SAR ADCs, part 1 (Rev. A) 10 Nov 2010
    Application note Using the ADS8327 with the TMS320C6713 DSP 18 Dec 2006

    Design & development

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

    Simulation model

    ADS8327 IBIS Model

    SLAM115.ZIP (80 KB) - IBIS Model
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    Simulation model

    ADS8327 TINA-TI Reference Design

    SLAM313.TSC (4245 KB) - TINA-TI Reference Design
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    Simulation model

    ADS8327 TINA-TI Spice Model

    SLAM312.ZIP (37 KB) - TINA-TI Spice 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 (...)
    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 (...)
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    Calculation tool

    JITTER-SNR-CALC — Jitter and SNR Calculator for ADCs

    JITTER-SNR-CALC can be used for calculating theoretical Signal to Noise (SNR) performance of ADCs based on input frequency and clock jitter.
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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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    Package Pins Download
    QFN (RSA) 16 View options
    TSSOP (PW) 16 View options

    Ordering & quality

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