I'm working on a Holter monitor (ECG data acquisition) which I need to create for my school project. I'm still in the begging phase, so I didn't choose measuring circuit design yet, but I've extensively Googled on them though and found several promising solutions for ECG measuring. However, since I have very little previous experience and limited knowledge, it's really hard for me to compare and make a pros/cons for each circuit. On addition, Holter monitor will have to measure 24+ hours straight, so that brings a couple of limitations to circuit while most of them are designed only for real-time monitoring as far as I know.
One of Google results that I've managed to find so far was also TI Precision Designs: Verified Design Ultra Low Power, 18 bit Precision ECG Data Acquisition System. At the bottom of the document, there are also few pages suggesting ADS1292 as a better alternative. Could someone please explain how does it compare to the main circuit presented in the above mentioned document? It really looks like a great solution, but I didn't find any demo circuits, only ADS1292 Demonstration Kit, so I basically have no idea how to design a measuring circuit with ADS1292.
ECG measurements will be acquired with microcontroller and forwarded to the phone by Bluetooth protocol (I still don't know which microcontroller would be the best for my case though). The whole system will have to be as small possible while outputting appropriate ECG measurements. Since Holter monitors ECG for at least 24 hours straight, power consumption is another crucial factor here, so ideally 2 or 3 alkaline batteries should suffice.
Any advise would be greatly appreciated. Thanks in advance!
