ADS1278-HT
- Simultaneously Measure Eight Channels
- Up to 128-kSPS Data Rate
- AC Performance:
62-kHz Bandwidth
111-dB SNR (High-Resolution Mode)
–108-dB THD - DC Accuracy:
0.8-µV/°C Offset Drift
1.3-ppm/°C Gain Drift - Selectable Operating Modes:
High-Speed: 128 kSPS, 106 dB SNR
High-Resolution: 52 kSPS, 111 dB SNR
Low-Power: 52 kSPS, 31 mW/ch
Low-Speed: 10 kSPS, 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: 5 V
- Digital Core: 1.8 V
- I/O Supply: 1.8 V to 3.3 V
- Currently Available in an HTQFP-64 PowerPAD™ package,
an 84-Pin HFQ Package and a KGD Chiptray Option - Supports Extreme Temperature Applications
- Controlled Baseline
- One Assembly/Test Site
- One Fabrication Site
- Available in Extreme (–55°C/210°C) Temperature Range(1)
- Extended Product Life Cycle
- Extended Product-Change Notification
- Product Traceability
- Texas Instruments High Temperature Products Utilize Highly
Optimized Silicon (Die) Solutions With Dsign and Process
Enhancements to Maximize Performance Over Extended Temperatures
- APPLICATIONS
- Down-Hole Drilling
- High Temperature Environments
- Vibration/Modal Analysis
- Multi-Channel Data Acquisition
- Acoustics/Dynamic Strain Gauges
- Pressure Sensors
(1) Custom temperature ranges available
All other trademarks are the property of their respective owners
Based on the single-channel ADS1271, the ADS1278 (octal) is a 24-bit, delta-sigma (ΔΣ) analog-to-digital converter (ADC) with data rates up to 128 k 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, they have limited signal bandwidth and are mostly suited 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 ADS1278 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 rate with less than 0.005 dB of ripple.
Four operating modes allow for optimization of speed, resolution, and power. All operations are controlled directly by pins; there are no registers to program. The device is fully specified over the extended industrial range (–55°C to 210°C) and is available in an HTQFP-64 PowerPAD package (55°C to 175°C), an 84-pin HFQ package and a KGD chiptray option.
기술 자료
유형 | 직함 | 날짜 | ||
---|---|---|---|---|
* | Data sheet | Quad/Octal, Simultaneous Sampling, 24-Bit Analog-to-Digital Converter datasheet (Rev. E) | 2013/04/11 | |
* | Radiation & reliability report | ADS1278SHFQ Reliability Report | 2012/05/07 | |
* | Radiation & reliability report | ADS1278SHKP Reliability Report | 2012/05/07 | |
Application note | Digital Filter Types in Delta-Sigma ADCs (Rev. A) | PDF | HTML | 2023/03/29 | |
E-book | Fundamentals of Precision ADC Noise Analysis | 2020/06/19 | ||
EVM User's guide | Harsh Environment Acquisition Terminal (H.E.A.T.) System Evaluation Kit (Rev. D) | 2015/07/24 | ||
E-book | Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs | 2015/03/19 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
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 (...)
지원되는 제품 및 하드웨어
제품
정밀 연산 증폭기(Vos<1mV)
범용 연산 증폭기
오디오 연산 증폭기
트랜스임피던스 증폭기
고속 연산 증폭기(GBW ≥ 50MHz)
전력 연산 증폭기
비디오 증폭기
라인 드라이버
트랜스컨덕턴스 증폭기 및 레이저 드라이버
완전 차동 증폭기
정밀 ADC
바이오센싱 AFE
고속 ADC(≥10 MSPS)
터치스크린 컨트롤러
차동 증폭기
계측 증폭기
오디오 라인 리시버
아날로그 전류 감지 증폭기
디지털 전원 모니터
션트 레지스터 통합 아날로그 전류 감지 증폭기
션트 레지스터가 통합된 디지털 전원 모니터
다이 및 웨이퍼 서비스
RF 리시버
RF 트랜스미터
ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.
지원되는 제품 및 하드웨어
제품
직렬 전압 레퍼런스
정밀 ADC
바이오센싱 AFE
통합 정밀 ADC 및 DAC
고속 ADC(≥10 MSPS)
정밀 DAC(≤10 MSPS)
PSPICE-FOR-TI — TI 설계 및 시뮬레이션 툴용 PSpice®
TI 설계 및 시뮬레이션 환경용 PSpice는 기본 제공 라이브러리를 이용해 복잡한 혼합 신호 설계를 시뮬레이션할 수 있습니다. 레이아웃 및 제작에 (...)
TINA-TI — SPICE 기반 아날로그 시뮬레이션 프로그램
TIDA-00002 — 고온 애플리케이션용 혹독한 환경 수집 단말기(HEAT) EVM 플랫폼
패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
---|---|---|
CFP (HFQ) | 84 | Ultra Librarian |
CFP (HKP) | 84 | Ultra Librarian |
DIESALE (KGD) | — | |
HTQFP (PAP) | 64 | Ultra Librarian |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.