ADS1192
- Two Low-Noise PGAs and
Two High-Resolution ADCs (ADS1192) - Low Power: 335 µW/channel
- Input-Referred Noise: 24 µVPP
(150-Hz BW, G = 6) - Input Bias Current: 1 nA
- Data Rate: 125 SPS to 8 kSPS
- CMRR: –95 dB
- Programmable Gain: 1, 2, 3, 4, 6, 8, or 12
- Supplies: Unipolar or Bipolar
- Analog: 2.7 V to 5.25 V
- Digital: 1.7 V to 3.6 V
- Built-In Right Leg Drive Amplifier, Lead-Off Detection, Test Signals
- Built-In Oscillator and Reference
- Flexible Power-Down, Standby Mode
- SPI™-Compatible Serial Interface
- Operating Temperature Range: –40°C to +85°C
The ADS1191/2 are a family of multichannel, simultaneous sampling, 16-bit, delta-sigma (ΔΣ) analog-to-digital converters (ADCs) with a built-in programmable gain amplifier (PGA), internal reference, and an onboard oscillator.
The ADS1191/2 incorporate all of the features that are commonly required in portable, low-power medical electrocardiogram (ECG), sports, and fitness applications.
With its high levels of integration and exceptional performance, the ADS1191/2 family enables the creation of scalable medical instrumentation systems at significantly reduced size, power, and overall cost.
The ADS1191/2 have a flexible input multiplexer per channel that can be independently connected to the internally-generated signals for test, temperature, and lead-off detection. Additionally, any configuration of input channels can be selected for derivation of the right leg drive (RLD) output signal. The ADS1191/2 operate at data rates up to 8 kSPS. Lead-off detection can be implemented internal to the device, using the device internal excitation current sink/source.
The devices are packaged in a 5-mm × 5-mm, 32-pin thin quad flat pack (TQFP). Operating temperature is specified from –40°C to +85°C.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | Low-Power, 2-Channel, 16-Bit Analog Front-End for Biopotential Measurements datasheet (Rev. A) | 2012. 9. 4 | ||
| 애플리케이션 노트 | QFN and SON PCB Attachment (Rev. C) | PDF | HTML | 2023. 12. 6 | ||
| 애플리케이션 노트 | Digital Filter Types in Delta-Sigma ADCs (Rev. A) | PDF | HTML | 2023. 3. 29 | ||
| e북 | Fundamentals of Precision ADC Noise Analysis (Rev. A) | 2020. 6. 19 | |||
| 아날로그 디자인 학술지 | How delta-sigma ADCs work, Part 1 (Rev. A) | 2016. 9. 19 | |||
| e북 | Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs | 2015. 3. 19 | |||
| 애플리케이션 노트 | Understanding Lead-Off Detection in ECG (Rev. A) | 2015. 1. 14 | |||
| 사용 설명서 | ADS1x9xECG-FE User's Guide (Rev. A) | 2012. 4. 4 | |||
| 아날로그 디자인 학술지 | How delta-sigma ADCs work, Part 2 | 2011. 11. 9 | |||
| 애플리케이션 노트 | Improving Common-Mode Rejection Using the Right-Leg Drive Amplifier | 2011. 7. 6 | |||
| 애플리케이션 노트 | Respiration Rate Measurement Using Impedance Pneumography | 2011. 3. 1 | |||
| 애플리케이션 노트 | Analog Front-End Design for ECG Systems Using Delta-Sigma ADCs (Rev. A) | 2010. 4. 13 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
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아날로그 엔지니어의 계산기는 아날로그 회로 설계 엔지니어가 정기적으로 사용하는 많은 반복 계산의 속도를 높이도록 설계되었습니다. 이 PC 기반 툴은 피드백 저항을 사용한 연산 증폭기 게인 설정부터 아날로그-디지털 컨버터(ADC) 드라이브 버퍼 회로 안정화를 위한 적절한 회로 설계 요소 선택에 이르기까지 다양한 일반적인 계산 목록이 포함된 그래픽 인터페이스를 제공합니다.
이 계산기는 독립 실행형 툴로 유용할 뿐만 아니라 아날로그 엔지니어의 포켓 레퍼런스에 설명된 개념과도 잘 어울립니다.
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| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| TQFP (PBS) | 32 | Ultra Librarian |
| VQFN (RSM) | 32 | Ultra Librarian |
주문 및 품질
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.