ECG AD8232 User Manual

Hardware description and how to build it
Device hardware can be easily obtained by assembling the three needed modules (ECG module
AD8232, Arduino Nano board and HC-05 or HC-06 Bluetooth module) as shown in figure 1.
Connections can be made by soldering wires directly to the boards or using connector cables
with female headers (figures 2 and 3).
The battery supplies the Arduino board; HC-06 (or HC-05) module is supplied by the Arduino
5 V voltage output while AD8232 module is supplied by the Arduino 3.3 V voltage output.
Figure 1: ECG hardware connections schematics

ECG AD8232 Specifications

General

Supply Current	170µA
Common-Mode Rejection Ratio	80dB
Operating Temperature Range	-40°C to +85°C
Type	Instrumentation Amplifier
Chip	AD8232
Output	Rail-to-Rail
Input Impedance	10GΩ
Gain	100
Bandwidth	0.5Hz to 40Hz
Input Bias Current	1 pA
Quiescent Current	170µA
Package	LFCSP