ADS1292R
- Two low-noise PGAs and two high-resolution ADCs
(ADS1292 and ADS1292R) - Low power: 335 µW/channel
- Input-referred noise: 8 µVPP
(150-Hz BW, G = 6) - Input bias current: 200 pA
- Data rate: 125 SPS to 8 kSPS
- CMRR: 120 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
- Integrated respiration impedance measurement (ADS1292R)
- Built-in oscillator and reference
- Flexible power-down, standby mode
- SPI™-compatible serial interface
- Operating temperature range: –40°C to +85°C
The ADS1291, ADS1292, and ADS1292R are multichannel, simultaneous sampling, 24-bit, delta-sigma (ΔΣ) analog-to-digital converters (ADCs) with a built-in programmable gain amplifier (PGA), internal reference, and an onboard oscillator.
The ADS1291, ADS1292, and ADS1292R incorporate all features commonly required in portable, low-power medical electrocardiogram (ECG), sports, and fitness applications.
With high levels of integration and exceptional performance, the ADS1291, ADS1292, and ADS1292R enable the creation of scalable medical instrumentation systems at significantly reduced size, power, and overall cost.
The ADS1291, ADS1292, and ADS1292R 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 ADS1291, ADS1292, and ADS1292R 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 or source. The ADS1292R version includes a fully integrated respiration impedance measurement function.
The devices are packaged in a 5-mm × 5-mm, 32-pin thin quad flat pack (TQFP) and a 4-mm x 4-mm, 32-pin quad flat pack with no leads (VQFN). 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 | ADS129x Low-Power, 2-Channel, 24-Bit Analog Front-End for Biopotential Measurements datasheet (Rev. C) | PDF | HTML | 2020/4/24 | ||
| 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 | |||
| 白皮書 | 持續進化的現代遠距照護應用半導 體技術 | Download English Version | 2020/10/28 | |||
| 電子書 | Fundamentals of Precision ADC Noise Analysis (Rev. A) | 2020/6/19 | ||||
| 技術文章 | Designing compact, efficient and high performing multiparameter patient monitors | PDF | HTML | 2019/6/25 | |||
| 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 | ||||
| 使用指南 | ADS1x9xECG-FE User's Guide (Rev. A) | 2012/4/4 | ||||
| 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
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| 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。