ADS1296R
- Eight Low-Noise PGAs and Eight High-Resolution ADCs (ADS1298, ADS1298R)
- Low Power: 0.75 mW/channel
- Input-Referred Noise: 4 μVPP (150 Hz BW, G = 6)
- Input Bias Current: 200 pA
- Data Rate: 250 SPS to 32 kSPS
- CMRR: –115 dB
- Programmable Gain: 1, 2, 3, 4, 6, 8, or 12
- Supports systems meeting AAMI EC11, EC13, IEC60601-1, IEC60601-2-27, and IEC60601-2-51 Standards
- Unipolar or Bipolar Supplies:
- AVDD = 2.7 V to 5.25 V
- DVDD = 1.65 V to 3.6 V
- Built-In Right Leg Drive Amplifier, Lead-Off Detection, Wilson Center Terminal, Pace Detection, Test Signals
- Integrated Respiration Impedance Measurement
- Digital Pace Detection Capability
- Built-In Oscillator and Reference
- SPI™-Compatible Serial Interface
The ADS1294, ADS1296, ADS1298 (ADS129x) and ADS1294R, ADS1296R ADS1298R (ADS129xR) are a family of multichannel, simultaneous sampling, 24-bit, delta-sigma (ΔΣ) analog-to-digital converters (ADCs) with built-in programmable gain amplifiers (PGAs), internal reference, and an onboard oscillator. The ADS129x and ADS129xR incorporate all of the features that are commonly required in medical electrocardiogram (ECG) and electroencephalogram (EEG) applications. With high levels of integration and exceptional performance, the ADS129x and ADS129xR enables the development of scalable medical instrumentation systems at significantly reduced size, power, and overall cost.
The ADS129x and ADS129xR have a flexible input multiplexer (mux) 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 ADS129x and ADS129xR operate at data rates as high as 32 kSPS, thereby allowing the implementation of software pace detection. Lead-off detection can be implemented internal to the device, either with a pullup or pulldown resistor, or an excitation current sink or source. Three integrated amplifiers generate the Wilson central terminal (WCT) and the Goldberger central terminals (GCT) required for a standard 12-lead ECG. The ADS129xR versions include a fully integrated, respiration impedance measurement function. Multiple ADS129x and ADS129xR devices can be cascaded in high channel count systems in a daisy-chain configuration.
Package options include a tiny 8-mm × 8-mm, 64-ball BGA, and a TQFP-64. The ADS129x BGA version is specified over the commercial temperature range of 0°C to 70°C. The ADS129xR BGA and ADS129x TQFP versions are specified over the industrial temperature range of –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, 8-Channel, 24-Bit Analog Front-End for Biopotential Measurements datasheet (Rev. K) | PDF | HTML | 2015/8/7 | ||
| 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 | ||||
| 電子書 | Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs | 2015/3/19 | ||||
| 使用指南 | TIPD111 Verified Design Reference Guide | 2013/6/18 | ||||
| 應用說明 | Improving Common-Mode Rejection Using the Right-Leg Drive Amplifier | 2011/7/6 | ||||
| 應用說明 | Thermal Noise Analysis in ECG Applications | 2011/5/3 | ||||
| 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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ADS1298RECGFE-PDK — ADS1298R 性能展示套件
The ADS1298R ECG FE is a reference design for the ADS1298R, a simultaneous sampling, 24-bit, delta-sigma (Δ Σ) analog-to-digital converter (ADC) with a built-in programmable gain amplifier (PGA), internal reference, and an onboard oscillator. The ADS1298R incorporates all of the (...)
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。
ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.
TIPD197 — ECG 中的軟體心律調節器偵測參考設計
此電路的設計可調節和數位化 ADS129x 上整合式 PACE_OUT 緩衝器的心電圖訊號輸出，藉此偵測人工心律調節器的偽影。此電路包含運算放大器，可作為快速取樣 SAR ADC 的訊號調節器和輸入驅動器。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| NFBGA (ZXG) | 64 | Ultra Librarian |
訂購與品質
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