TI ADS1298 8路24位精度心电图(ECG)前端方案

TI 公司的ADS1298是集成了心电图(ECG)前端的8路24位精度delta-sigma (ΔΣ)模/数转换器,具有同时取样和内置的可编增益放大器(PGA),基准电压和振荡器,包含了医疗心电图(ECG)和脑电图(EEG)所有的功能.本文介绍了ADS1298主要特性和优势,功能方框图,以及每路输入复接器方框图,单电源连接框图, 双电源连接框图与心电图(ECG)总体方框图.

8-Channel, 24-Bit Analog-To-Digital Converter With Integrated ECG Front End

The ADS1294/6/8 are a family of 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 ADS1294/6/8 incorporate all of the features that are commonly required in medical electrocardiogram (ECG) and electroencephalogram (EEG) applications.

ADS1298主要特性和优势:

Simplifies design and saves board space, using up to 95 percent fewer components, by integrating all common features required for ECG and EEG front ends, including the following:

eight low-noise programmable gain amplifiers (PGAs).

eight high-resolution, simultaneous sampling analog-to-digital converters (ADCs).

integrated amplifier for right-leg drive.

integrated amplifiers for Wilson Central Terminal (WCT) and Goldberger Terminals (GCT).
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