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ADS8319

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Precision 16-Bit SAR Analog-to-Digital Converter (ADC) With SPI Interface

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Data sheet

ADS8319

ACTIVE
Data sheet Order now

Product details

Resolution (Bits) 16 Sample rate (max) (ksps) 500 Number of input channels 1 Interface type SPI Architecture SAR Input type Single-ended Rating Catalog Reference mode External Input voltage range (max) (V) 5.5 Input voltage range (min) (V) 0 Features Daisy-Chainable, Small Size Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 18 Analog supply (min) (V) 4.5 Analog supply voltage (max) (V) 5.5 SNR (dB) 93.9 Digital supply (min) (V) 2.375 Digital supply (max) (V) 5.5
Resolution (Bits) 16 Sample rate (max) (ksps) 500 Number of input channels 1 Interface type SPI Architecture SAR Input type Single-ended Rating Catalog Reference mode External Input voltage range (max) (V) 5.5 Input voltage range (min) (V) 0 Features Daisy-Chainable, Small Size Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 18 Analog supply (min) (V) 4.5 Analog supply voltage (max) (V) 5.5 SNR (dB) 93.9 Digital supply (min) (V) 2.375 Digital supply (max) (V) 5.5
VSON (DRC) 10 9 mm² 3 x 3 VSSOP (DGS) 10 14.7 mm² 3 x 4.9
  • 500-kHz Sample Rate
  • 16-Bit Resolution
  • Zero Latency at Full Speed
  • Unipolar, Single-Ended Input Range: 0 V to VREF
  • SPI-Compatible Serial Interface With Daisy-Chain Option
  • Excellent Performance:
    • 93.6-dB SNR (Typical) at 10-kHz Input
    • –106-dB THD (Typical) at 10-kHz Input
    • ±1.5-LSB (Maximum) INL
    • ±1-LSB (Maximum) DNL
  • Low Power Dissipation: 18 mW (Typical) at 500 kSPS
  • Power Scales Linearly with Speed: 3.6 mW / 100 kSPS
  • Power Dissipation During Power-Down State: 0.25 µW (Typical)
  • 10-Pin VSSOP and VSON Packages
  • 500-kHz Sample Rate
  • 16-Bit Resolution
  • Zero Latency at Full Speed
  • Unipolar, Single-Ended Input Range: 0 V to VREF
  • SPI-Compatible Serial Interface With Daisy-Chain Option
  • Excellent Performance:
    • 93.6-dB SNR (Typical) at 10-kHz Input
    • –106-dB THD (Typical) at 10-kHz Input
    • ±1.5-LSB (Maximum) INL
    • ±1-LSB (Maximum) DNL
  • Low Power Dissipation: 18 mW (Typical) at 500 kSPS
  • Power Scales Linearly with Speed: 3.6 mW / 100 kSPS
  • Power Dissipation During Power-Down State: 0.25 µW (Typical)
  • 10-Pin VSSOP and VSON Packages

The ADS8319 device is a 16-bit, 500-kSPS, analog-to-digital converter (ADC) that operates with a 2.25-V to 5.5-V external reference. The device includes a capacitor-based, successive-approximation register (SAR) ADC with inherent sample and hold.

The device includes a 50-MHz, SPI-compatible serial interface. The interface is designed to support daisy-chaining or cascading of multiple devices. Furthermore, a Busy Indicator makes synchronizing with the digital host easy.

The device unipolar, single-ended input range supports an input swing of 0 V to +VREF.

Device operation is optimized for very-low power operation and the power consumption directly scales with speed. This feature makes the device attractive for lower-speed applications. The device is available in 10-pin VSSOP and VSON packages.

The ADS8319 device is a 16-bit, 500-kSPS, analog-to-digital converter (ADC) that operates with a 2.25-V to 5.5-V external reference. The device includes a capacitor-based, successive-approximation register (SAR) ADC with inherent sample and hold.

The device includes a 50-MHz, SPI-compatible serial interface. The interface is designed to support daisy-chaining or cascading of multiple devices. Furthermore, a Busy Indicator makes synchronizing with the digital host easy.

The device unipolar, single-ended input range supports an input swing of 0 V to +VREF.

Device operation is optimized for very-low power operation and the power consumption directly scales with speed. This feature makes the device attractive for lower-speed applications. The device is available in 10-pin VSSOP and VSON packages.
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Technical documentation

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Type Title Date
* Data sheet ADS8319 16-Bit, 500-kSPS, Serial Interface, Micropower, Miniature, SAR Analog-to-Digital Converter datasheet (Rev. C) PDF | HTML 09 Dec 2016
Circuit design Circuit for protecting low-voltage SAR ADC from electrical overstress with minim 25 May 2019
Circuit design Antialiasing filter circuit design for single-ended ADC input using fixed cutoff (Rev. A) 07 Mar 2019
White paper Voltage-reference impact on total harmonic distortion 01 Aug 2016
More literature SAR ADCs for PLC Applications 11 Feb 2016
E-book Best of Baker's Best: Precision Data Converters -- SAR ADCs 21 May 2015
Technical article Performance comparison between SAR ADC input types – Part 1 12 Sep 2014
Technical article Input considerations for SAR ADCs 20 Jun 2014
Application note Determining Minimum Acquisition Times for SAR ADCs, part 2 17 Mar 2011
Analog Design Journal The IBIS model, Part 2: Determining the total quality of an IBIS model 14 Mar 2011
Application note Determining Minimum Acquisition Times for SAR ADCs, part 1 (Rev. A) 10 Nov 2010
Application note Low Power Input and Reference Driver Circuit for ADS8318 and ADS8319 24 Jun 2009

Design & development

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

Support software

SBAC197 — Source Files for SBAA282

Supported products & hardware

Supported products & hardware

Products
Precision ADCs
ADS8319 — Precision 16-Bit SAR Analog-to-Digital Converter (ADC) With SPI Interface
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Simulation model

ADS8319 IBIS Model

SBAM087.ZIP (28 KB) - IBIS Model
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Simulation model

ADS8319 TINA-TI Spice Model

SLAM206.ZIP (50 KB) - TINA-TI Spice Model
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Simulation model

ADS8319 TINA-TI Transient Reference Design

SLAM207.TSC (2625 KB) - TINA-TI Reference Design
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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 operational-amplifier (...)
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Calculation tool

JITTER-SNR-CALC — Jitter and SNR calculator

JITTER-SNR-CALC can be used for calculating theoretical Signal to Noise (SNR) performance of ADCs based on input frequency and clock jitter.

Supported products & hardware

Supported products & hardware

Products
High-speed ADCs (≥10 MSPS)
ADS4126 — 12-Bit, 160-MSPS Analog-to-Digital Converter (ADC) ADS4129 — 12-Bit, 250-MSPS Analog-to-Digital Converter (ADC) ADS4146 — 14-Bit, 160-MSPS Analog-to-Digital Converter (ADC) ADS4149 — 14-Bit, 250-MSPS Analog-to-Digital Converter (ADC) ADS41B29 — 12-Bit, 250-MSPS Analog-to-Digital Converter (ADC) ADS41B49 — 14-Bit, 250-MSPS Analog-to-Digital Converter (ADC) ADS5231 — Dual-Channel, 12-Bit, 40-MSPS Analog-to-Digital Converter (ADC) ADS5232 — Dual-Channel, 12-Bit, 65-MSPS Analog-to-Digital Converter (ADC) ADS5237 — Dual-Channel, 10-Bit, 65-MSPS Analog-to-Digital Converter (ADC) ADS5240 — Quad-Channel, 12-Bit, 40-MSPS Analog-to-Digital Converter (ADC) ADS5242 — Quad-Channel, 12-Bit, 65-MSPS Analog-to-Digital Converter (ADC) ADS5270 — Eight-Channel, 12-Bit, 40-MSPS Analog-to-Digital Converter (ADC) ADS5271 — Eight-Channel, 12-Bit, 50-MSPS Analog-to-Digital Converter (ADC) ADS5272 — Eight-Channel, 12-Bit, 65-MSPS Analog-to-Digital Converter (ADC) ADS5273 — Eight-Channel, 12-Bit, 70-MSPS Analog-to-Digital Converter (ADC) ADS5277 — Eight-Channel, 10-Bit, 65-MSPS Analog-to-Digital Converter (ADC) ADS5281 — Eight-Channel, 12-Bit, 50-MSPS Analog-to-Digital Converter (ADC) ADS5282 — Eight-Channel, 12-Bit, 65-MSPS Analog-to-Digital Converter (ADC) ADS5287 — Eight-Channel, 10-Bit, 40-MSPS Analog-to-Digital Converter (ADC) ADS5411 — 11-Bit, 105-MSPS Analog-to-Digital Converter (ADC) ADS5413 — 12-Bit, 65-MSPS, 1.0-GHz Input Bandwidth Analog-to-Digital Converter (ADC) ADS5421 — 14-Bit, 40-MSPS Analog-to-Digital Converter (ADC) ADS5422 — 14-Bit, 62-MSPS Analog-to-Digital Converter (ADC) ADS5423 — 14-Bit, 80-MSPS Analog-to-Digital Converter (ADC) ADS5424 — 14-Bit, 105-MSPS Analog-to-Digital Converter (ADC) ADS5440 — 13-Bit, 210-MSPS Analog-to-Digital Converter (ADC) ADS5444 — 13-bit 250-MSPS analog-to-digital converter (ADC) ADS5463 — 12-bit 500-MSPS analog-to-digital converter (ADC) ADS5474 — 14-bit 400-MSPS analog-to-digital converter (ADC) ADS5481 — 16-bit, 80-MSPS analog-to-digital converter (ADC) with high SFDR and LVDS outputs ADS5482 — 16-Bit, 105-MSPS Analog-to-Digital Converter (ADC) ADS5483 — 16-Bit, 135-MSPS Analog-to-Digital Converter (ADC) ADS5484 — 16-Bit, 170-MSPS Analog-to-Digital Converter (ADC) ADS54RF63 — 12-Bit, 550-MSPS, RF Sampling Analog-to-Digital Converter (ADC) ADS5500 — 14-Bit, 125-MSPS Analog-to-Digital Converter (ADC) ADS5510 — 11-Bit, 125-MSPS Analog-to-Digital Converter (ADC) ADS5517 — 11-Bit, 200-MSPS Analog-to-Digital Converter (ADC) ADS5520 — 12-Bit, 125-MSPS Analog-to-Digital Converter (ADC) ADS5521 — 12-Bit, 105-MSPS Analog-to-Digital Converter (ADC) ADS5522 — 12-Bit, 80-MSPS Analog-to-Digital Converter (ADC) ADS5525 — 12-Bit, 170-MSPS Analog-to-Digital Converter (ADC) ADS5527 — 12-Bit, 210-MSPS Analog-to-Digital Converter (ADC) ADS5541 — 14-Bit, 105-MSPS Analog-to-Digital Converter (ADC) ADS5542 — 14-Bit, 80-MSPS Analog-to-Digital Converter (ADC) ADS5545 — 14-Bit, 170-MSPS Analog-to-Digital Converter (ADC) ADS5546 — 14-Bit, 190-MSPS Analog-to-Digital Converter (ADC) ADS5547 — 14-Bit, 210-MSPS Analog-to-Digital Converter (ADC) ADS5553 — Dual-Channel, 14-Bit, 65-MSPS Analog-to-Digital Converter (ADC) ADS5560 — 16-Bit, 40-MSPS Analog-to-Digital Converter (ADC) ADS5562 — 16-bit, 80-MSPS analog-to-digital converter (ADC) with high SNR and CMOS/LVDS outputs ADS58B18 — 11-Bit, 200-MSPS Analog-to-Digital Converter (ADC) ADS58C28 — Dual-Channel, 11-Bit, 200-MSPS Analog-to-Digital Converter (ADC) ADS58C48 — Quad-Channel, 11-Bit, 200-MSPS Analog-to-Digital Converter (ADC) ADS6128 — 12-Bit, 210-MSPS Analog-to-Digital Converter (ADC) ADS6129 — 12-Bit, 250-MSPS Analog-to-Digital Converter (ADC) ADS6145 — 14-Bit, 125-MSPS Analog-to-Digital Converter (ADC) ADS6148 — 14-Bit, 210-MSPS Analog-to-Digital Converter (ADC) ADS6149 — 14-Bit, 250-MSPS Analog-to-Digital Converter (ADC) ADS61B29 — 12-Bit, 250-MSPS Analog-to-Digital Converter (ADC) ADS61B49 — 14-Bit, 250-MSPS Analog-to-Digital Converter (ADC) ADS6224 — Dual-Channel, 12-Bit, 105-MSPS Analog-to-Digital Converter (ADC) ADS6225 — Dual-Channel, 12-Bit, 125-MSPS Analog-to-Digital Converter (ADC) ADS6243 — Dual-Channel, 14-Bit, 80-MSPS Analog-to-Digital Converter (ADC) ADS6244 — Dual-Channel, 14-Bit, 105-MSPS Analog-to-Digital Converter (ADC) ADS6245 — Dual-Channel, 14-Bit, 125-MSPS Analog-to-Digital Converter (ADC) ADS62C17 — Dual-Channel, 11-Bit, 200-MSPS Analog-to-Digital Converter (ADC) ADS62P28 — Dual-Channel, 12-Bit, 210-MSPS Analog-to-Digital Converter (ADC) ADS62P29 — Dual-Channel, 12-Bit, 250-MSPS Analog-to-Digital Converter (ADC) ADS62P48 — Dual-Channel, 14-Bit, 210-MSPS Analog-to-Digital Converter (ADC) ADS62P49 — Dual-Channel, 14-Bit, 250-MSPS Analog-to-Digital Converter (ADC) ADS6422 — Quad-Channel, 12-Bit, 65-MSPS Analog-to-Digital Converter (ADC) ADS6423 — Quad-Channel, 12-Bit, 80-MSPS Analog-to-Digital Converter (ADC) ADS6424 — Quad-Channel, 12-Bit, 105-MSPS Analog-to-Digital Converter (ADC) ADS6425 — Quad-Channel, 12-Bit, 125-MSPS Analog-to-Digital Converter (ADC) ADS6442 — Quad-Channel, 14-Bit, 65-MSPS Analog-to-Digital Converter (ADC) ADS6443 — Quad-Channel, 14-Bit, 80-MSPS Analog-to-Digital Converter (ADC) ADS6444 — Quad-Channel, 14-Bit, 105-MSPS Analog-to-Digital Converter (ADC) ADS6445 — Quad-Channel, 14-Bit, 125-MSPS Analog-to-Digital Converter (ADC) ADS800 — 12-Bit, 40 MSPS ADC SE/Diff inputs. Internal References, pin compatible to ADS801/2 ADS801 — 12-Bit, 25 MSPS ADC SE/Diff inputs. Internal References, pin compatible to ADS800/2 ADS802 — 12-Bit, 10-MSPS Analog-to-Digital Converter (ADC) ADS803 — 12-Bit, 5-MSPS Analog-to-Digital Converter (ADC) ADS804 — 12-Bit, 10-MSPS Analog-to-Digital Converter (ADC) ADS805 — 12-Bit, 20-MSPS Analog-to-Digital Converter (ADC) ADS807 — 12-Bit, 53-MSPS Analog-to-Digital Converter (ADC) ADS820 — 10-Bit, 20-MSPS Analog-to-Digital Converter (ADC) ADS821 — 10-Bit, 40-MSPS Analog-to-Digital Converter (ADC) ADS822 — 10-Bit, 40-MSPS Analog-to-Digital Converter (ADC) ADS825 — 10-Bit, 40-MSPS Analog-to-Digital Converter (ADC) ADS828 — 10-Bit, 75-MSPS Analog-to-Digital Converter (ADC) ADS830 — 8-Bit, 60-MSPS Analog-to-Digital Converter (ADC) ADS831 — 8-Bit, 80-MSPS Analog-to-Digital Converter (ADC) ADS850 — 14-Bit, 10-MSPS Analog-to-Digital Converter (ADC) ADS900 — 10-Bit, 20-MSPS Analog-to-Digital Converter (ADC) ADS901 — 10-Bit, 20-MSPS Analog-to-Digital Converter (ADC) ADS930 — 8-Bit, 30 MSPS ADC SE/Diff Inputs w/ Internal Ref. and Low Power, Powerdown
Precision ADCs
ADS8201 — 2.2V to 5.5V, Low-Power, 12-Bit, 100kSPS, 8-Channel DAS with PGA and SPI™ ADS8317 — 16-Bit, Pseudo-Bipolar, Fully Diff Input, 250kSPS Serial Out, 2.7V-to-5.5V Micropower Sampling ADC ADS8318 — 16-Bit, Unipolar Differential Input, 500kSPS Serial Out, 4.5V-to-5.5V Micropower Sampling ADC ADS8319 — Precision 16-Bit SAR Analog-to-Digital Converter (ADC) With SPI Interface ADS8320 — 16-Bit, High-Speed, 2.7V-to-5V Micropower Sampling Analog-to-Digital Converter (ADC) ADS8321 — 16-Bit, High-Speed, Micropower Sampling Analog-to-Digital Converter (ADC) ADS8322 — Unipolar, 16-Bit, 500kSPS CMOS Analog-to-Digital Converter (ADC) ADS8323 — Pseudo Bipolar, 16-Bit, 500kSPS CMOS Analog-to-Digital Converter ADS8324 — 14-Bit 50 kSPS ADC Ser. Out, 1.8V Operation ADS8325 — 16-Bit, 100kSPS Serial Out, 2.7V-to-5.5V Micropower Sampling ADC ADS8326 — 16-Bit, Pseudo-Diff Input, 250kSPS Serial Out, 2.7V-to-5.5V Micropower Sampling ADC ADS8327 — 2.7V-to-5.5V 16-Bit 500kSPS Serial Analog-to-Digital Converter (ADC) ADS8328 — 2.7V-to-5.5V 16-Bit 500kSPS Serial ADC With 2-to-1 Multiplexer ADS8329 — 2.7V-to-5.5V 16-Bit 1MSPS Serial Analog-to-Digital Converter (ADC) ADS8330 — 2.7V-to-5.5V 16-Bit 1MSPS Serial ADC With 2-to-1 Multiplexer ADS8331 — 2.7V-to-5.5V 16-Bit 500kSPS Low-Power Serial Analog-to-Digital Converter (ADC) ADS8332 — 2.7V-to-5.5V, 16-Bit, 500kSPS Low-Power Serial ADC With 8-Ch Multiplexer and Breakout ADS8341 — 16-Bit, 4-Channel Serial Output Sampling Analog-to-Digital Converter (ADC) ADS8342 — 16-Bit 250 kSPS ADC Parallel Out, 4 true bipolar channels ADS8343 — 16-Bit, 4-Channel Serial Output Sampling Analog-To-Digital Converter ADS8344 — 16-Bit, 100-kSPS, 8-Ch SAR ADC with single-ended inputs ADS8345 — 16-Bit, 100-kSPS, 8-Ch SAR ADC with fully differential inputs ADS8361 — 16-Bit 500 kSPS 2 ADCs, 4ch, serial out ADS8364 — 6-Channel 16-Bit Simultaneous-Sampling SAR ADC With 250kSPS for Motor and Power Control ADS8365 — 16-Bit 250kSPS 6-Ch Simultaneous Sampling SAR ADC ADS8370 — 16-Bit 600KSPS Serial ADC with Ref and Unipolar Pseudo Diff Input ADS8371 — 16-Bit 750-kHz Unipolar Input Micro Power Sampling ADC Converter w/Parallel ADS8372 — 16-Bit 600KSPS Serial ADC with Ref and Pseudo Bipolar, Fully Differential Input ADS8380 — 18-Bit 600KSPS Serial ADC with Ref and Unipolar Pseudo Diff Input ADS8381 — 18 Bit 580KSPS parallel ADC ADS8382 — 18-Bit 600KSPS Serial ADC with Ref and Pseudo Bipolar, Fully Differential Input ADS8383 — 18 Bit 500KSPS Parallel ADC ADS8405 — 16-Bit 1.25 MSPS Unipolar Input Micro Power Sampling ADC ADS8406 — 16-Bit 1.25 MSPS, Pseudo Bipolar, Fully Differential Input Micro Power Sampling ADC ADS8411 — 16-Bit, 2MSPS ADC with P8/P16 Parallel Output, Internal Clock & Internal Reference ADS8412 — 16-Bit 2MSPS Parallel ADC W/Ref, Unipolar Fully Differential Input ADS8413 — 16-bit, Unipolar Diff Input, 2MSPS Sampling rate, 4.75V to 5.25V ADC with LVDS Serial Interface ADS8422 — 16 Bit 4MSPS Parallel ADC W/Ref, Pseudo Bipolar, Fully Differential Input ADS8471 — 16-bit 1-MSPS pseudo-differential SAR ADC with reference ADS8472 — 16-Bit 1MSPS 0.65 LSB Max INL Precision ADC with Parallel Interface and Reference ADS8481 — 18 Bit 1MSPS parallel ADC W/Ref ADS8482 — 18 Bit 1MSPS Parallel ADC W/Ref, Pseudo Bipolar, Fully Differential Input ADS8484 — 18 Bit 1.25MSPS Parallel ADC W/Ref, Pseudo Bipolar, Fully Differential Input ADS8504 — 12-Bit 250kHz CMOS Analog-to-Digital Converter With Parallel Interface 2.5V Internal Reference ADS8505 — 16-Bit, 250-kSPS, 1-Ch SAR ADC with programmable (±10/±5/±3.3V) input ranges and parallel interface ADS8506 — 12-Bit 40KSPS Analog-to-Digital Converter With Serial Interface and Reference Parallel ADS8507 — 16-Bit 40KSPS Analog-to-Digital Converter With Internal Reference and Parallel/Serial Interface ADS8508 — 12-Bit 250kHz CMOS Analog-to-Digital Converter With Serial Interface 2.5V Internal Reference ADS8509 — 16-Bit, 250-kSPS, 1-Ch SAR ADC with programmable (±10/±5/±3.3V) input ranges and SPI interface ADS8512 — 12-Bit 40kSPS Low-Power Sampling ADC With Internal Reference and Serial Interface ADS8513 — 16-Bit 40kSPS Low-Power Sampling ADC With Internal Reference and Parallel/Serial Interface ADS8515 — 16-Bit 250kHz CMOS Analog-to-Digital Converter With Parallel Interface 4.096V Internal Reference ADS8517 — Low-Power 16-Bit 200kSPS ±10V Bipolar Input SAR ADC With S/P Interface ADS8519 — 16-Bit 250kHz CMOS Analog-to-Digital Converter With Serial Interface 4.096V Internal Reference ADS8556 — 630kSPS 6-Channel Simultaneous-Sampling ADC
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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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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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