ADS1194
- Eight Low-Noise PGAs and
Eight High-Resolution ADCs (ADS1198) - Low Power: 0.55mW/channel
- Input-Referred Noise:
12µVPP (150Hz BW, G = 6) - Input Bias Current: 200pA
- Data Rate: 125SPS to 8kSPS
- CMRR: –105dB
- Programmable Gain: 1, 2, 3, 4, 6, 8, or 12
- Supports AAMI EC11, EC13, IEC60601-1, IEC60601-2-27, and IEC60601-2-51 Standards
- Supplies: Unipolar or Bipolar
- Analog: 2.7V to 5.25V
- Digital: 1.65V to 3.6V
- Built-In Right Leg Drive Amplifier, Lead-Off Detection, WCT, Test Signals
- Pace Detection Channel Select
- Built-In Oscillator and Reference
- Flexible Power-Down, Standby Mode
- SPI™-Compatible Serial Interface
- Operating Temperature Range:
0°C to +70°C
The ADS1194/6/8 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.
With its high levels of integration and exceptional performance, the ADS1194/6/8 family enables the creation of scalable medical instrumentation systems at significantly reduced size, power, and overall cost.
The ADS1194/6/8 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 ADS1194/6/8 operate at data rates as high as 8kSPS, thereby allowing the implementation of software pace detection. Lead-off detection can be implemented internal to the device, either with a pull-up/pull-down resistor or an excitation current sink/source. Three integrated amplifiers generate the Wilson Center Terminal (WCT) and the Goldberger terminals (GCT) required for a standard 12-lead medical electrocardiogram (ECG).
Multiple ADS1194/6/8 devices can be cascaded in high channel count systems in a daisy-chain configuration.
Package options include a tiny 8mm × 8mm, 64-ball BGA and a TQFP-64. Both packages are specified over the temperature range of 0°C to +70°C.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | Low-Power, 8-Channel, 16-Bit Analog Front-End for Biopotential Measurements datasheet (Rev. C) | 2011. 11. 29 | ||
| 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 | |||
| 사용 설명서 | TIPD111 Verified Design Reference Guide | 2013. 6. 18 | |||
| 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 | Thermal Noise Analysis in ECG Applications | 2011. 5. 3 | |||
| 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
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주문 및 품질
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.