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

ADS1672

ACTIVO

ADC Delta Sigma de 625 kSPS y 24 bits de alta velocidad y alta resolución

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ADS1672

ACTIVO
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Detalles del producto

Resolution (Bits) 24 Sample rate (max) (ksps) 625 Number of input channels 1 Interface type Serial Architecture Delta-Sigma Input type Differential Rating Catalog Reference mode External Input voltage range (max) (V) 3.25 Input voltage range (min) (V) 0 Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 350 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 SNR (dB) 103 Digital supply (min) (V) 2.7 Digital supply (max) (V) 3.3
Resolution (Bits) 24 Sample rate (max) (ksps) 625 Number of input channels 1 Interface type Serial Architecture Delta-Sigma Input type Differential Rating Catalog Reference mode External Input voltage range (max) (V) 3.25 Input voltage range (min) (V) 0 Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 350 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 SNR (dB) 103 Digital supply (min) (V) 2.7 Digital supply (max) (V) 3.3
TQFP (PAG) 64 144 mm² (12 mm × 12 mm)
  • AC Performance:
    107dB of Dynamic Range at 625kSPS
    115.5dB of Dynamic Range at 78kSPS
    –113dB THD
  • DC Accuracy:
    3ppm INL
    2µ/°C Offset Drift
    2ppm/°C Gain Drift
  • Programmable Digital Filter with User-Selectable Path:
    • Low-Latency: Completely settles in 5.5µs
    • Wide-Bandwidth: 305kHz BW with flat passband
  • Flexible Read-Only Serial Interface:
    • Standard CMOS
    • Serialized LVDS
  • Easy Conversion Control with START Pin
  • Out-of-Range Detection
  • Supply: Analog +5V, Digital +3V
  • Power: 350mW
  • APPLICATIONS
    • Automated Test Equipment
    • Vibration Analysis
    • Sonar
    • Test and Measurement

All other trademarks are the property of their respective owners
  • AC Performance:
    107dB of Dynamic Range at 625kSPS
    115.5dB of Dynamic Range at 78kSPS
    –113dB THD
  • DC Accuracy:
    3ppm INL
    2µ/°C Offset Drift
    2ppm/°C Gain Drift
  • Programmable Digital Filter with User-Selectable Path:
    • Low-Latency: Completely settles in 5.5µs
    • Wide-Bandwidth: 305kHz BW with flat passband
  • Flexible Read-Only Serial Interface:
    • Standard CMOS
    • Serialized LVDS
  • Easy Conversion Control with START Pin
  • Out-of-Range Detection
  • Supply: Analog +5V, Digital +3V
  • Power: 350mW
  • APPLICATIONS
    • Automated Test Equipment
    • Vibration Analysis
    • Sonar
    • Test and Measurement

All other trademarks are the property of their respective owners

The ADS1672 is a high-speed, high-precision analog-to-digital converter (ADC). Using an advanced delta-sigma () architecture, it operates at speeds up to 625kSPS with outstanding ac performance and dc accuracy.

The ADS1672 ADC is comprised of a low-drift, chopper-stabilized modulator with out-of-range detection and a dual-path programmable digital filter. The dual filter path allows the user to select between two post-processing filters: low-latency or wide-bandwidth. The low-latency filter settles quickly in one cycle, for applications with large instantaneous changes, such as a multiplexer. The wide-bandwidth path provides an optimized frequency response for ac measurements with a passband ripple of less than 0.001dB, stop band attenuation of 86dB, and a bandwidth of 305kHz.

The ADS1672 is controlled through I/O pins—there are no registers to program. A dedicated START pin allows for direct control of conversions: toggle the START pin to begin a conversion, and then retrieve the output data. The flexible serial interface supports data readback with either standard CMOS and LVDS logic levels, allowing the ADS1672 to directly connect to a wide range of microcontrollers, digital signal processors (DSPs), or field-programmable grid arrays (FPGAs).

The ADS1672 operates from an analog supply of 5V and digital supply of 3V, and dissipates 350mW of power. When not in use, the PDWN pin can be used to power down all device circuitry. The device is fully specified over the industrial temperature range and is offered in a TQFP-64 package.

The ADS1672 is a high-speed, high-precision analog-to-digital converter (ADC). Using an advanced delta-sigma () architecture, it operates at speeds up to 625kSPS with outstanding ac performance and dc accuracy.

The ADS1672 ADC is comprised of a low-drift, chopper-stabilized modulator with out-of-range detection and a dual-path programmable digital filter. The dual filter path allows the user to select between two post-processing filters: low-latency or wide-bandwidth. The low-latency filter settles quickly in one cycle, for applications with large instantaneous changes, such as a multiplexer. The wide-bandwidth path provides an optimized frequency response for ac measurements with a passband ripple of less than 0.001dB, stop band attenuation of 86dB, and a bandwidth of 305kHz.

The ADS1672 is controlled through I/O pins—there are no registers to program. A dedicated START pin allows for direct control of conversions: toggle the START pin to begin a conversion, and then retrieve the output data. The flexible serial interface supports data readback with either standard CMOS and LVDS logic levels, allowing the ADS1672 to directly connect to a wide range of microcontrollers, digital signal processors (DSPs), or field-programmable grid arrays (FPGAs).

The ADS1672 operates from an analog supply of 5V and digital supply of 3V, and dissipates 350mW of power. When not in use, the PDWN pin can be used to power down all device circuitry. The device is fully specified over the industrial temperature range and is offered in a TQFP-64 package.
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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos 625kSPS, 24-Bit Analog-to-Digital Converter datasheet (Rev. D) 8/07/2010
Nota sobre la aplicación Digital Filter Types in Delta-Sigma ADCs (Rev. A) PDF | HTML 29/03/2023
Libro electrónico Fundamentals of Precision ADC Noise Analysis (Rev. A) 19/06/2020
Informe Voltage-reference impact on total harmonic distortion 1/08/2016
Libro electrónico Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs 19/03/2015
Nota sobre la aplicación Using the ADS1672 in Digital Filter Bypass Mode 6/12/2008

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.

Modelo de simulación

ADS1672 IBIS Model (Rev. A)

SBAC066 (62 KB) - Modelo IBIS
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Soporte y capacitación

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