AD8232ACPZ-R7

The AD8232ACPZ-R7 is a fully integrated, single-lead ECG (electrocardiogram) front-end module designed for ECG and other biopotential measurement applications. It is specifically engineered to extract, amplify, and filter weak biopotential signals in the presence of noise, such as that generated by motion or remote electrode placement. This device allows for easy acquisition of output signals by ultra-low power analog-to-digital converters (ADCs) or embedded microcontrollers.

Key Features:

1. High Signal Gain with DC Blocking:
   • The AD8232ACPZ-R7 offers a high signal gain of 100, with the ability to block DC components, making it ideal for amplifying AC biopotential signals.
2. Adjustable High-Pass and Low-Pass Filters:
   • The module includes a two-pole adjustable high-pass filter to eliminate motion artifacts and electrode half-cell potentials. Additionally, a three-pole adjustable low-pass filter is provided to further reduce unwanted noise.
3. Common-Mode Rejection Ratio (CMRR):
   • With a CMRR of 80 dB (from DC to 60 Hz), the AD8232ACPZ-R7 effectively rejects common-mode signals, improving the signal-to-noise ratio of the differential amplification.
4. Lead-Off Detection:
   • The device includes lead-off detection functionality, which can be configured for either AC or DC detection, ensuring reliable performance even when electrodes are disconnected.
5. Integrated Right Leg Drive (RLD) Amplifier:
   • An integrated RLD amplifier is provided to drive the right leg electrode, reducing common-mode interference and improving the quality of the ECG signal.
6. Low Power Consumption:
   • The AD8232ACPZ-R7 operates with a low power supply current of 170 μA (typical), making it suitable for portable and battery-powered applications.
7. Single-Supply Operation:
   • The module can operate with a single power supply ranging from 2.0 V to 3.5 V, providing flexibility in various power supply environments.
8. Small Footprint and Robust Packaging:
   • The AD8232ACPZ-R7 is packaged in a small 4 mm × 4 mm, 20-lead LFCSP (lead-frame chip scale package), making it easy to integrate into compact designs.
9. Fast Recovery Function:
   • The AD8232ACPZ-R7 features a fast recovery function that reduces the settling time of the high-pass filter, allowing for quicker and more accurate measurements after sudden signal changes.

Applications:

• Fitness and activity heart rate monitors
• Portable ECG devices
• Remote health monitoring systems
• Gaming peripherals
• Biopotential signal acquisition systems

In summary, the AD8232ACPZ-R7 is a versatile and high-performance ECG front-end module that offers a combination of high signal gain, adjustable filters, low power consumption, and a small footprint. Its robust packaging and fast recovery function make it suitable for a wide range of applications, ensuring reliable and accurate ECG signal acquisition and processing.