제품 상세 정보

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.

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기술 자료

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12개 모두 보기
상위 문서 유형 직함 형식 옵션 날짜
* Data sheet ADS1278QML-SP Radiation Hardened 8-Ch Simultaneous-Sampling 24-Bit Analog-to-Digital Converter datasheet PDF | HTML 2026/01/30
* Radiation & reliability report Single-Event Effects (SEE) Radiation Report of the ADS1278QML-SP PDF | HTML 2026/05/22
Application note Space ADC Circuit Cookbook PDF | HTML 2026/05/11
Application brief TI's Space Grade Precision ADCs in Laser Communication Terminals PDF | HTML 2025/11/19
Application brief DLA Approved Optimizations for QML Products (Rev. C) PDF | HTML 2025/06/17
Application note Heavy Ion Orbital Environment Single-Event Effects Estimations (Rev. B) PDF | HTML 2025/06/10
Application brief ADS1278-SP Power-On Reset Procedure PDF | HTML 2025/03/25
More literature TI Engineering Evaluation Units vs. MIL-PRF-38535 QML Class V Processing (Rev. B) 2025/02/20
Application note Digital Filter Types in Delta-Sigma ADCs (Rev. A) PDF | HTML 2023/03/29
Application note Single-Event Effects Confidence Interval Calculations (Rev. A) PDF | HTML 2022/10/19
Application brief Analog Front-End Design With Texas Instruments’ Tooling Landscape PDF | HTML 2022/03/07
E-book Fundamentals of Precision ADC Noise Analysis (Rev. A) 2020/06/19

설계 및 개발

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계산 툴

ANALOG-ENGINEER-CALC PC software 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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시뮬레이션 툴

PSPICE-FOR-TI — TI 설계 및 시뮬레이션 툴용 PSpice®

TI용 PSpice®는 아날로그 회로의 기능을 평가하는 데 사용되는 설계 및 시뮬레이션 환경입니다. 완전한 기능을 갖춘 이 설계 및 시뮬레이션 제품군은 Cadence®의 아날로그 분석 엔진을 사용합니다. 무료로 제공되는 TI용 PSpice에는 아날로그 및 전력 포트폴리오뿐 아니라 아날로그 행동 모델에 이르기까지 업계에서 가장 방대한 모델 라이브러리 중 하나가 포함되어 있습니다.

TI 설계 및 시뮬레이션 환경용 PSpice는 기본 제공 라이브러리를 이용해 복잡한 혼합 신호 설계를 시뮬레이션할 수 있습니다. 레이아웃 및 제작에 착수하기 (...)
시뮬레이션 툴

TINA-TI — SPICE 기반 아날로그 시뮬레이션 프로그램

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 (...)
사용 설명서: PDF
패키지 CAD 기호, 풋프린트 및 3D 모델
— (—)

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포함된 정보:
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  • REACH
  • 디바이스 마킹
  • 납 마감/볼 재질
  • MSL 등급/피크 리플로우
  • MTBF/FIT 예측
  • 물질 성분
  • 인증 요약
  • 지속적인 신뢰성 모니터링
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콘텐츠는 TI 및 커뮤니티 기고자에 의해 "있는 그대로" 제공되며 TI의 사양으로 간주되지 않습니다. 사용 약관을 참조하십시오.

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