AD8232 ECG Module

13 July 2020 - 0 Comments

AD8232 ECG Module

AD8232 ECG Module Pinout

AD8232 ECG Moduleintegrated withAD8232IC fromAnalog Devices, which is a single-chip designed to extract, amplify, and filter biopotential signals for biopotential measurement applications (like ECG and others). ECGs can be extremely noisy so that the AD8232 Single Lead Heart Rate Monitor acts as an op-amp to help obtain a clear signal from the PR and QT Intervals easily.

Pin Description of the AD8232 ECG Module

Pin Name	Description
GND	Power Supply Ground
3.3v	Power Supply 3.3v
Output (ADC)	Operational Amplifier Output. The fully conditioned heart rate signal is present at this output. OUT can be connected to the input of an ADC.
LO-	Leads Off Comparator Output. In dc leads off detection mode, LO− is high when the electrode to −IN is disconnected, and it is low when connected
LO+	Leads Off Comparator Output. In dc leads off detection mode, LOD+ is high when the +IN electrode is disconnected, and it is low when connected
	Shutdown Control Input. Drive SDN low to enter the low power shutdown mode.
RA (Right Arm)	RED Biomedical electrode pad RA(input).仪表放大器-输入。−在typically connected to the right arm (RA) electrode
LA (Left Arm)	YELLOW Biomedical electrode pad LA(input).Instrumentation Amplifier Positive Input. +IN is typically connected to the left arm (LA) electrode
RL(Right Leg)	GREEN Biomedical electrode pad RL(input).Right Leg Drive Output. Connect the driven electrode (typically, right leg) to the RLD pin.
3.5mm ECG Biomedical Electrode Connector Jack	Combine Biomedical Electrode pad Connector of RA, LA, RL

The pinout can be easily seen in the Board Legend.

AD8232 Module Pinout

Features of the AD8232 ECG Module

Fully integrated single-lead ECG front end
Common-mode rejection ratio: 80 dB (dc to 60 Hz)
Two or three-electrode configurations
Qualified for automotive application
Single-supply operation: 2.0 V to 3.5
Fast restore feature improves filter settling
Size: 3.5cm x 3cm

Note: Complete technical details can be found in theAD8232Datasheet linked at the bottom of this page.

——Overvie AD8232心电图模块w

The main biopotential measuring IC isAD8232.

TheAD8232 ECG Moduleis a cost-effective board used to measure the electrical activity of the heart. This electrical activity can be charted as an ECG or Electrocardiogram and output as an analog reading.

Additionally, this board includes pins like the right arm (RA), left arm (LA) & right leg (RL) pins to connect custom sensors. An LED indicator in this board is used to indicate the heartbeat rhythm of humans. The AD8232 ECG module comprises a function like quick restore used to decrease the length of long resolving tails of the HPFs.

Interfacing Diagram

AD8232 ECG module can be easily interfaced with any microcontroller unit. It requires one analog pin for getting the output of the sensor and three digital pins for control related operations.

Follow the below image for the interfacing related information.

AD8232 Interfacing Diagram