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.
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | Low-Power, 8-Channel, 16-Bit Analog Front-End for Biopotential Measurements 数据表 (Rev. C) | 2011-11-29 | |||
| 应用手册 | Δ-Σ ADC 中的数字滤波器类型 (Rev. A) | PDF | HTML | 英语版 (Rev.A) | PDF | HTML | 2023-4-13 | |
| 电子书 | Fundamentals of Precision ADC Noise Analysis (Rev. A) | 2020-6-19 | ||||
| 模拟设计期刊 | How delta-sigma ADCs work, Part 1 (Rev. A) | 2016-9-19 | ||||
| 电子书 | Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs | 2015-3-19 | ||||
| 用户指南 | 使用斜率检测的硬件步速电路 | 英语版 | 2014-1-13 | |||
| 模拟设计期刊 | ΔΣ ADC工作原理 | 英语版 | 2012-1-13 | |||
| 应用手册 | Improving Common-Mode Rejection Using the Right-Leg Drive Amplifier | 2011-7-6 | ||||
| 应用手册 | Thermal Noise Analysis in ECG Applications | 2011-5-3 | ||||
| 应用手册 | Respiration Rate Measurement Using Impedance Pneumography | 2011-3-1 | ||||
| 应用手册 | Analog Front-End Design for ECG Systems Using Delta-Sigma ADCs (Rev. A) | 2010-4-13 |
设计与开发
如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。
ADS1198ECGFE-PDK — ADS1198ECGFE-PDK 模拟前端性能演示套件
ADS1198ECG FE 是用于 ADS1198 同步采样 16 位 Δ-Σ (ΔΣ) 模数转换器 (ADC) 的参考设计，具有内置可编程增益放大器 (PGA)、内部参考和板载振荡器。ADS1198 将心电图 (ECG) 和脑电图 (EEG) 等医疗应用所需的所有常见功能集于一身。ADS1198ECG FE 可以与各种病患模拟器配合使用，使用户能够充分利用灵活的输入多路复用器，该多路复用器可单独与内部生成的信号相连，便于进行测试、温度及导联断线检测。
ANALOG-ENGINEER-CALC — PC software analog engineer's calculator
模拟工程师计算器旨在加快模拟电路设计工程师经常运用的许多重复性计算。该基于 PC 的工具提供图形界面，其中显示各种常见计算列表，从使用反馈电阻器设置运算放大器增益到选择合适的电路设计元件，以稳定模数转换器 (ADC) 驱动器缓冲器电路。
除了可用作独立工具之外，该计算器还能很好地与模拟工程师口袋参考中所述的概念配合使用。
TIDA-00096 — 具有低功耗蓝牙的无线心脏监护仪
这款支持低功耗蓝牙 (BLE) 的无线心率监测仪旨在作为参考设计，供客户开发基于电池供电的 3 通道健康与健身心电图 (ECG) 应用的终端产品。 ADS1293 是一款高度集成的低功耗模拟前端 (AFE)，具有三个高分辨率 ECG 通道。 CC2541 片上系统 (SoC) 为平台添加了一种 BLE 无线功能，可通过可配置的 iOS 应用实现与 iPhone(R) 或 iPad(R) 的无缝连接，可以让终端用户远程监控患者的心率数据。
TIPD197 — 用于心电图中软件起搏器检测的参考设计
该电路旨在调节来自 ADS129x 上集成式 PACE_OUT 缓冲器的心电图信号输出并将其数字化，以检测人工起搏器的伪影。此电路包括一个运算放大器，用作快速采样 SAR ADC 的信号调节器和输入驱动器。
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| TQFP (PAG) | 64 | Ultra Librarian |
| NFBGA (ZXG) | 64 | Ultra Librarian |
订购和质量
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