Product details

Resolution (Bits) 16 Number of input channels 1 Sample rate (Max) (kSPS) 500 Interface type SPI Architecture SAR Input type Single-Ended Multi-channel configuration 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 Multi-channel configuration 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 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 How smart AFEs offer an integrated analog solution for thermoelectric cooling control 04 Jan 2022
    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 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
    Simulation model

    ADS8327 TINA-TI Spice Model

    SLAM312.ZIP (37 KB) - TINA-TI Spice Model
    Simulation model

    ADS8327 TINA-TI Reference Design

    SLAM313.TSC (4245 KB) - TINA-TI Reference Design
    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 (...)
    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 (...)
    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 (...)
    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 (...)
    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.
    Package Pins Download
    QFN (RSA) 16 View options
    TSSOP (PW) 16 View options

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