delano_monitor_01

Figure 1: Block diagram of the ECG long-term Holter monitor system.  The front end uses TI OPA333 and INA333 amplifiers and has a bandwidth from 0.5 Hz to 125 Hz.  The 3-axis ADI accelerometer samples data at 12.5Hz to help correlate activity level with the ECG recordings.  The battery is a 3.7V 600 mAh Li-Pol cell from Cameron-Sino.