ADS1278QML-SP

ACTIVO

Radiation-hardened, QML-V, 24-bit eight-channel Simultaneous-Sampling Delta-Sigma ADC

Detalles del producto

Resolution (Bits) 24 Sample rate (max) (ksps) 128 Number of input channels 8 Interface type SPI Architecture Delta-Sigma Input type Differential Multichannel configuration Simultaneous Sampling Rating Space Reference mode External Input voltage range (max) (V) 5 Input voltage range (min) (V) 0 Features Daisy-Chainable Operating temperature range (°C) -55 to 125 Power consumption (typ) (mW) 530 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5 SNR (dB) 111 Digital supply (min) (V) 1.65 Digital supply (max) (V) 1.95
Resolution (Bits) 24 Sample rate (max) (ksps) 128 Number of input channels 8 Interface type SPI Architecture Delta-Sigma Input type Differential Multichannel configuration Simultaneous Sampling Rating Space Reference mode External Input voltage range (max) (V) 5 Input voltage range (min) (V) 0 Features Daisy-Chainable Operating temperature range (°C) -55 to 125 Power consumption (typ) (mW) 530 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5 SNR (dB) 111 Digital supply (min) (V) 1.65 Digital supply (max) (V) 1.95
— (—) See data sheet
  • Radiation Hardened
    • TID Radiation Lot Acceptance Test (RLAT): 50krad
    • Single Event Latchup (SEL) Immune to LET: 51MeV-cm2/mg at 125°C
  • Simultaneously Samples Eight Channels
  • Up to 128kSPS Data Rate
  • AC Performance:
    • 63kHz Bandwidth
    • 111dB SNR (High-Resolution Mode)
    • –108dB THD
  • DC Accuracy:
    • 0.8µV/°C Offset Drift
    • 1.3ppm/°C Gain Drift
  • Selectable Operating Modes:
    • High-Speed: 128kSPS, 106dB SNR
    • High-Resolution: 52kSPS, 111dB SNR
    • Low-Power: 52kSPS, 31 mW/ch
    • Low-Speed: 10kSPS, 7 mW/ch
  • Linear Phase Digital Filter
  • SPI™ or Frame-Sync Serial Interface
  • Low Sampling Aperture Error
  • Modulator Output Option (Digital Filter Bypass)
  • Analog Supply: 5V
  • Digital Core: 1.8V
  • I/O Supply: 1.8V to 3.3V
  • Radiation Hardened
    • TID Radiation Lot Acceptance Test (RLAT): 50krad
    • Single Event Latchup (SEL) Immune to LET: 51MeV-cm2/mg at 125°C
  • Simultaneously Samples Eight Channels
  • Up to 128kSPS Data Rate
  • AC Performance:
    • 63kHz Bandwidth
    • 111dB SNR (High-Resolution Mode)
    • –108dB THD
  • DC Accuracy:
    • 0.8µV/°C Offset Drift
    • 1.3ppm/°C Gain Drift
  • Selectable Operating Modes:
    • High-Speed: 128kSPS, 106dB SNR
    • High-Resolution: 52kSPS, 111dB SNR
    • Low-Power: 52kSPS, 31 mW/ch
    • Low-Speed: 10kSPS, 7 mW/ch
  • Linear Phase Digital Filter
  • SPI™ or Frame-Sync Serial Interface
  • Low Sampling Aperture Error
  • Modulator Output Option (Digital Filter Bypass)
  • Analog Supply: 5V
  • Digital Core: 1.8V
  • I/O Supply: 1.8V to 3.3V

The ADS1278QML-SP is an 8-channel, 24-bit, delta-sigma (ΔΣ) analog-to-digital converter (ADC) with data rates up to 128k samples per second (SPS), allowing simultaneous sampling of eight channels.

Traditionally, industrial delta-sigma ADCs offering good drift performance use digital filters with large passband droop. As a result, these ADCs have limited signal bandwidth and are mostly designed for dc measurements. High-resolution ADCs in audio applications offer larger usable bandwidths, but the offset and drift specifications are significantly weaker than respective industrial counterparts. The ADS1278QML-SP combines these types of converters, allowing high-precision industrial measurement with excellent dc and ac specifications.

The high-order, chopper-stabilized modulator achieves very low drift with low in-band noise. The onboard decimation filter suppresses modulator and signal out-of-band noise. These ADCs provide a usable signal bandwidth up to 90% of the Nyquist frequency with less than 0.005dB of ripple.

The ADS1278QML-SP is an 8-channel, 24-bit, delta-sigma (ΔΣ) analog-to-digital converter (ADC) with data rates up to 128k samples per second (SPS), allowing simultaneous sampling of eight channels.

Traditionally, industrial delta-sigma ADCs offering good drift performance use digital filters with large passband droop. As a result, these ADCs have limited signal bandwidth and are mostly designed for dc measurements. High-resolution ADCs in audio applications offer larger usable bandwidths, but the offset and drift specifications are significantly weaker than respective industrial counterparts. The ADS1278QML-SP combines these types of converters, allowing high-precision industrial measurement with excellent dc and ac specifications.

The high-order, chopper-stabilized modulator achieves very low drift with low in-band noise. The onboard decimation filter suppresses modulator and signal out-of-band noise. These ADCs provide a usable signal bandwidth up to 90% of the Nyquist frequency with less than 0.005dB of ripple.

Descargar Ver vídeo con transcripción Video

Documentación técnica

No se encontraron resultados. Borre su búsqueda y vuelva a intentarlo.
Ver todo 12
Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos ADS1278QML-SP Radiation Hardened 8-Ch Simultaneous-Sampling 24-Bit Analog-to-Digital Converter datasheet PDF | HTML 30/01/2026
* Informe de radiación y confiabilidad Single-Event Effects (SEE) Radiation Report of the ADS1278QML-SP PDF | HTML 22/05/2026
Application brief ADS1278QML-SP Power-On Reset Procedure (Rev. A) PDF | HTML 10/07/2026
Application brief TI's Space Grade Precision ADCs in Laser Communication Terminals (Rev. A) PDF | HTML 9/07/2026
Nota sobre la aplicación Space ADC Circuit Cookbook PDF | HTML 11/05/2026
Application brief DLA Approved Optimizations for QML Products (Rev. C) PDF | HTML 17/06/2025
Nota sobre la aplicación Heavy Ion Orbital Environment Single-Event Effects Estimations (Rev. B) PDF | HTML 10/06/2025
Más documentación TI Engineering Evaluation Units vs. MIL-PRF-38535 QML Class V Processing (Rev. B) 20/02/2025
Nota sobre la aplicación Digital Filter Types in Delta-Sigma ADCs (Rev. A) PDF | HTML 29/03/2023
Nota sobre la aplicación Single-Event Effects Confidence Interval Calculations (Rev. A) PDF | HTML 19/10/2022
Application brief Analog Front-End Design With Texas Instruments’ Tooling Landscape PDF | HTML 7/03/2022
Libro electrónico Fundamentals of Precision ADC Noise Analysis (Rev. A) 19/06/2020

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.

Herramienta de cálculo

ANALOG-ENGINEER-CALC — PC software analog engineer's calculator

La calculadora del ingeniero analógico está diseñada para acelerar muchos de los cálculos repetitivos que los ingenieros de diseño de circuitos analógicos utilizan de forma habitual. Esta herramienta para PC proporciona una interfaz gráfica con una lista de varios cálculos comunes que van desde el (...)

Productos y hardware compatibles
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
— (—)

Pedidos y calidad

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

El contenido lo proporcionan “tal como está” TI y los colaboradores de la comunidad y no constituye especificaciones de TI. Consulte los términos de uso.

Si tiene alguna pregunta sobre calidad, encapsulados o pedido de productos de TI, consulte el servicio de asistencia de TI. ​​​​​​​​​​​​​​

Videos