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Convertidores de datos
Convertidores analógico-digitales (ADC)
ADC de precisión

ADS8319

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Convertidor analógico a digital (ADC) SAR de precisión de 16 bits con interfaz SPI

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ADS8319

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Detalles del producto

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 voltage (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 voltage (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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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Fecha
* Data sheet ADS8319 16-Bit, 500-kSPS, Serial Interface, Micropower, Miniature, SAR Analog-to-Digital Converter datasheet (Rev. C) PDF | HTML 09 dic 2016
Circuit design Antialiasing filter circuit design for single-ended ADC input using fixed cutoff (Rev. B) PDF | HTML 24 sep 2024
Circuit design Circuit for protecting low-voltage SAR ADC from electrical overstress with minim (Rev. A) PDF | HTML 19 sep 2024
White paper Voltage-reference impact on total harmonic distortion 01 ago 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
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

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Soporte de software

SBAC197 — Source Files for SBAA282

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Modelo de simulación

ADS8319 IBIS Model

SBAM087.ZIP (28 KB) - IBIS Model
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Modelo de simulación

ADS8319 TINA-TI Spice Model

SLAM206.ZIP (50 KB) - TINA-TI Spice Model
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Modelo de simulación

ADS8319 TINA-TI Transient Reference Design

SLAM207.TSC (2625 KB) - TINA-TI Reference Design
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Herramienta de cálculo

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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.

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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.
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PSPICE-FOR-TI — PSpice® para herramienta de diseño y simulación de TI

PSpice® para TI es un entorno de diseño y simulación que ayuda a evaluar la funcionalidad de los circuitos analógicos. Esta completa suite de diseño y simulación utiliza un motor de análisis analógico de Cadence®. Disponible sin ningún costo, PSpice para TI incluye una de las bibliotecas de modelos (...)
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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 (...)
Guía del usuario: PDF
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Encapsulado Pines Símbolos CAD, huellas y modelos 3D
VSON (DRC) 10 Ultra Librarian
VSSOP (DGS) 10 Ultra Librarian
Se aplican los Términos y condiciones estándar de TI para los elementos de evaluación.

Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL)/reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

Los productos recomendados pueden tener parámetros, módulos de evaluación o diseños de referencia relacionados con este producto de TI.

Soporte y capacitación

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

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