ADS1191
- 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.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | Low-Power, 2-Channel, 16-Bit Analog Front-End for Biopotential Measurements datasheet (Rev. A) | 2012/9/4 | |||
| 應用說明 | QFN and SON PCB Attachment (Rev. C) | PDF | HTML | 2023/12/6 | |||
| 應用說明 | Digital Filter Types in Delta-Sigma ADCs (Rev. A) | PDF | HTML | 2023/3/29 | |||
| 電子書 | Fundamentals of Precision ADC Noise Analysis (Rev. A) | 2020/6/19 | ||||
| 類比設計期刊 | How delta-sigma ADCs work, Part 1 (Rev. A) | 2016/9/19 | ||||
| 電子書 | Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs | 2015/3/19 | ||||
| 應用說明 | Understanding Lead-Off Detection in ECG (Rev. A) | 2015/1/14 | ||||
| 類比設計期刊 | How delta-sigma ADCs work, Part 2 | 2011/11/9 | ||||
| 應用說明 | Improving Common-Mode Rejection Using the Right-Leg Drive Amplifier | 2011/7/6 | ||||
| 應用說明 | Respiration Rate Measurement Using Impedance Pneumography | 2011/3/1 | ||||
| 應用說明 | Analog Front-End Design for ECG Systems Using Delta-Sigma ADCs (Rev. A) | 2010/4/13 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
ADS1192ECG-FE — ADS1192 性能展示套件
The ADS1x9xECG FE is a demonstration kit for the ADS1192 and ADS1292, a two channel, simultaneous sampling, 16-bit or 24-bit, delta-sigma(ΔΣ) analog-to-digital converter (ADC) with a built-in programmable gain amplifier (PGA), internal reference, and an on-board oscillator. The ADS1192 (...)
ANALOG-ENGINEER-CALC — PC software analog engineer's calculator
類比工程師的計算機旨在加速類比電路設計工程師定期使用的許多重複計算。此基於 PC 的工具提供圖形介面，列出各種常見計算，從使用回饋電阻器設定運算放大器增益到選擇適當的電路設計元件以穩定類比數位轉換器 (ADC) 驅動緩衝電路。
除了作為獨立工具使用外，此計算機還與類比工程師口袋參考中描述的概念相得益彰。
TIDM-BIOSIGNMONITOR — 用於個人監測的多參數生物訊號監測器參考設計
多參數生物訊號監測器 (MPBSM) 是一款概念驗證評估模組 (EVM)，能夠測量四項主要生命徵象中的三項。MPBSM 概念驗證模組可直接測量心電圖 (ECG)、皮膚電反應 (GSR) 及皮膚溫度。MPBSM 概念驗證模組還可間接測量心率、呼吸頻率、步頻、步數及排汗率。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN (RSM) | 32 | Ultra Librarian |
| TQFP (PBS) | 32 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。