ADS1271
- 105kSPS Data Rate
- AC Performance:
51kHz Bandwidth
109dB SNR (High-Resolution Mode)
–108dB THD - DC Accuracy:
1.8µV/°C Offset Drift
2ppm/°C Gain Drift - Selectable Operating Modes:
High-Speed: 105kSPS Data Rate
High-Resolution: 109dB SNR
Low-Power: 35mW Dissipation - Power-Down Control
- Digital Filter:
Linear Phase Response
Passband Ripple: ±0.005dB
Stop Band Attenuation: 100dB - Internal Offset Calibration On Command
- Selectable SPI&™ or Frame Sync Serial Interface
- Designed for Multichannel Systems:
Daisy-Chainable Serial Interface
Easy Synchronization - Simple Pin-Driven Control
- Modulator Output Option
- Specified from –40°C to +105°C
- Analog Supply: 5V
- Digital Supply: 1.8V to 3.3V
- APPLICATIONS
- Vibration/Modal Analysis
- Acoustics
- Dynamic Strain Gauges
- Pressure Sensors
- Test and Measurement
SPI is a trademark of Motorola Inc. All other trademarks are the property of their respective owners.
The ADS1271 is a 24-bit, delta-sigma analog-to-digital converter (ADC) with a data rate up to 105kSPS. It offers a unique combination of excellent DC accuracy and outstanding AC performance. 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. The ADS1271 provides a usable signal bandwidth up to 90% of the Nyquist rate with less than 0.005dB of ripple.
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 specification are significantly weaker than their industrial counterparts. The ADS1271 combines these converters, allowing high-precision industrial measurement with excellent DC and AC specifications ensured over an extended industrial temperature range.
Three operating modes allow for optimization of speed, resolution, and power. A selectable SPI or a frame-sync serial interface provides for convenient interfacing to microcontrollers or DSPs. The output from the modulator is accessible for external digital filter applications. All operations, including internal offset calibration, are controlled directly by pins; there are no registers to program.
기술 자료
유형 | 직함 | 날짜 | ||
---|---|---|---|---|
* | Data sheet | 24-Bit, Wide Bandwidth Analog-to-Digital Converter datasheet (Rev. F) | 2007/10/23 | |
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 | ||
White paper | Voltage-reference impact on total harmonic distortion | 2016/08/01 | ||
E-book | Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs | 2015/03/19 | ||
EVM User's guide | ADS1271EVM User's Guide (Rev. C) | 2014/11/19 | ||
Application note | Synchronizing the ADS1271 | 2005/10/27 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
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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)
리시버
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
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---|---|---|
TSSOP (PW) | 16 | 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.