ADS1251

ACTIVO

Convertidor analógico a digital de 24 bits, 20 kHz y potencia ultrabaja

Detalles del producto

Resolution (Bits) 24 Sample rate (max) (ksps) 20 Number of input channels 1 Interface type SPI Architecture Delta-Sigma Input type Differential Rating Catalog Reference mode External Input voltage range (max) (V) 5.25 Input voltage range (min) (V) 0 Features 50/60 Hz Rejection Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 7.5 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 Digital supply (min) (V) 4.75 Digital supply (max) (V) 5.25
Resolution (Bits) 24 Sample rate (max) (ksps) 20 Number of input channels 1 Interface type SPI Architecture Delta-Sigma Input type Differential Rating Catalog Reference mode External Input voltage range (max) (V) 5.25 Input voltage range (min) (V) 0 Features 50/60 Hz Rejection Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 7.5 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 Digital supply (min) (V) 4.75 Digital supply (max) (V) 5.25
SOIC (D) 8 29.4 mm² 4.9 x 6
  • 24 BITS—NO MISSING CODES
  • 19 BITS EFFECTIVE RESOLUTION UP TO 20kHz DATA RATE
  • LOW NOISE: 1.5ppm
  • DIFFERENTIAL INPUTS
  • INL: 15ppm (max)
  • EXTERNAL REFERENCE (0.5V to 5V)
  • POWER-DOWN MODE
  • SYNC MODE
  • LOW POWER:
    8mW at 20kHz
    5mW at 10kHz
  • APPLICATIONS
    • CARDIAC DIAGNOSTICS
    • DIRECT THERMOCOUPLE INTERFACES
    • BLOOD ANALYSIS
    • INFRARED PYROMETERS
    • LIQUID/GAS CHROMATOGRAPHY
    • PRECISION PROCESS CONTROL

All trademarks are the property of their respective owners.

  • 24 BITS—NO MISSING CODES
  • 19 BITS EFFECTIVE RESOLUTION UP TO 20kHz DATA RATE
  • LOW NOISE: 1.5ppm
  • DIFFERENTIAL INPUTS
  • INL: 15ppm (max)
  • EXTERNAL REFERENCE (0.5V to 5V)
  • POWER-DOWN MODE
  • SYNC MODE
  • LOW POWER:
    8mW at 20kHz
    5mW at 10kHz
  • APPLICATIONS
    • CARDIAC DIAGNOSTICS
    • DIRECT THERMOCOUPLE INTERFACES
    • BLOOD ANALYSIS
    • INFRARED PYROMETERS
    • LIQUID/GAS CHROMATOGRAPHY
    • PRECISION PROCESS CONTROL

All trademarks are the property of their respective owners.

The ADS1251 is a precision, wide dynamic range, delta-sigma, Analog-to-Digital (A/D) converter with 24-bit resolution operating from a single +5V supply. The delta-sigma architecture is used for wide dynamic range and to guarantee 24 bits of no missing codes performance. Effective resolution of 19 bits (1.5ppm of rms noise) is achieved for conversion rates up to 20kHz.

The ADS1251 is designed for high-resolution measurement applications in cardiac diagnostics, smart transmitters, industrial process control, weight scales, chromatography, and portable instrumentation. The converter includes a flexible, 2-wire synchronous serial interface for low-cost isolation.

The ADS1251 is a single-channel converter and is offered in an SO-8 package. It is pin-compatible with the faster ADS1252 (41.7kHz data rate).

The ADS1251 is a precision, wide dynamic range, delta-sigma, Analog-to-Digital (A/D) converter with 24-bit resolution operating from a single +5V supply. The delta-sigma architecture is used for wide dynamic range and to guarantee 24 bits of no missing codes performance. Effective resolution of 19 bits (1.5ppm of rms noise) is achieved for conversion rates up to 20kHz.

The ADS1251 is designed for high-resolution measurement applications in cardiac diagnostics, smart transmitters, industrial process control, weight scales, chromatography, and portable instrumentation. The converter includes a flexible, 2-wire synchronous serial interface for low-cost isolation.

The ADS1251 is a single-channel converter and is offered in an SO-8 package. It is pin-compatible with the faster ADS1252 (41.7kHz data rate).

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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Fecha
* Data sheet 24-Bit, 20kHz, Low-Power Analog-to-Digital Converter datasheet (Rev. D) 17 jun 2009
Application note Calculating Conversion Latency and System Cycle Time for Delta-Sigma ADCs (Rev. A) PDF | HTML 18 mar 2024
Application note A Basic Guide to Bridge Measurements (Rev. A) PDF | HTML 13 mar 2024
Application note Digital Filter Types in Delta-Sigma ADCs (Rev. A) PDF | HTML 29 mar 2023
E-book Fundamentals of Precision ADC Noise Analysis (Rev. A) 19 jun 2020
E-book Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs 19 mar 2015
Application note Understanding the ADS1251, ADS1253, and ADS1254 Input Circuitry 17 dic 2002

Diseño y desarrollo

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Pedidos y calidad

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  • 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

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