AD8232ACPZ-WP

Specialized ICS Overview

The AD8232ACPZ-WP is an integrated signal conditioning block for ECG and other biopotential measurement applications manufactured by Analog Devices Inc. It is designed to extract, amplify, and filter small biopotential signals in the presence of noisy conditions. The device features a fixed gain of 100 V/V, an adjustable two-pole high-pass filter, and an uncommitted operational amplifier configured as a three-pole low-pass filter with adjustable gain. Key functional blocks include an integrated right leg drive (RLD) amplifier, leads-off detection (AC or DC options), and a fast restore circuit to improve filter settling time after electrode disconnection. It operates on a single supply voltage ranging from 2.0 V to 3.5 V with a typical quiescent current of 170 µA.

Specialized ICS Feature Summary

• Fully integrated single-lead ECG front end.
• Low supply current: 170 µA (typical).
• Common-mode rejection ratio: 80 dB (DC to 60 Hz).
• High signal gain (G = 100) with DC blocking capabilities.
• Two-pole adjustable high-pass filter.
• Uncommitted op amp for a three-pole adjustable low-pass filter with adjustable gain.
• Leads off detection: AC or DC options.
• Integrated right leg drive (RLD) amplifier.
• Fast restore feature improves filter settling.
• Single-supply operation: 2.0 V to 3.5 V.
• Integrated reference buffer generates virtual ground.
• Rail-to-rail output.
• Internal RFI filter.
• 8 kV HBM ESD rating.
• Shutdown pin.

Specialized ICS Applications

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

Specialized ICS Procurement Notes

Verify that the specific ordering suffix corresponds to the W grade, which denotes automotive qualification and extended temperature operation (-40°C to +125°C). Confirm package availability matches the 20-lead LFCSP (4 mm × 4 mm) form factor. Ensure component authenticity through authorized distribution channels to maintain reliability standards for medical or automotive applications.

Specialized ICS Selection Notes

Select this component when automotive reliability and wide temperature operation are required for ECG signal conditioning. The AD8232ACPZ-WP is suitable for designs needing a low-power, single-supply analog front end with integrated noise filtering and RLD capabilities. Compare against the A grade variant if the application does not require automotive qualification or operation above 85°C.

Specialized ICS Part Context

The AD8232ACPZ-WP belongs to the AD8232 family of single-lead heart rate monitor front ends. The 'W' suffix specifically identifies the automotive-grade version, distinguished from the commercial A grade by its guaranteed performance specifications across the wider automotive temperature range. This part serves as a complete analog front end, replacing discrete solutions for instrumentation amplification, filtering, and common-mode rejection in wearable and portable cardiac monitoring devices.

Specialized ICS Replacement Considerations

Public confirmed substitute part numbers: AD8232ACPZ-R7, AD8232ACPZ-RL, AD8232WACSZ.