ADAS1000-3BCPZ-RL

Overview

The ADAS1000-3BCPZ-RL is a low-power, three-electrode electrocardiogram (ECG) analog front end manufactured by Analog Devices Inc. It features three acquisition channels and one driven lead, designed for biopotential signal digitization. The device supports AC and DC lead-off detection, internal pace detection algorithms on three leads, and thoracic impedance measurement. It operates within a supply voltage range of 3.15 V to 5.5 V for AVDD and 1.65 V to 3.6 V for IOVDD. Key electrical parameters include a typical input-referred noise of 12 μV p-p in analog lead mode (0.05 Hz to 150 Hz, low power mode) and a signal-to-noise ratio of 100 dB. The component utilizes an SPI-compatible serial interface and is housed in a 56-lead LFCSP package.

Feature Summary

• Three ECG acquisition channels with one driven lead output
• Integrated AC and DC lead-off detection capabilities
• Internal pace detection algorithm operating on three leads
• Thoracic impedance measurement support via internal or external paths

Applications

• ECG monitor and diagnostic systems
• Bedside patient monitoring equipment
• Portable telemetry and Holter monitors
• Automated external defibrillators (AED)
• Cardiac defibrillators and ambulatory monitors

Procurement Notes

Verify the specific ordering suffix BCPZ-RL against the manufacturer's current datasheet revision C to confirm package type and reel packaging specifications. Ensure compatibility with system power rails, specifically the 3.3 V analog supply and 1.8 V digital core requirements. Confirm that the 56-lead LFCSP footprint matches the PCB layout design guidelines provided in the official documentation.

Selection Notes

Select the ADAS1000-3 over the ADAS1000-4 when respiration measurement and user-defined pace detection are not required, as the ADAS1000-3 lacks these specific functional blocks. Consider the power/noise scaling architecture if optimizing for battery life versus signal fidelity. Verify that the three-channel configuration meets the electrode count requirements of the target ECG application, potentially ganging with other devices for higher channel counts.

Part Context

The ADAS1000-3 is part of the ADAS1000 series of analog front ends designed for ECG applications. It serves as a primary or secondary device in multi-chip configurations. Unlike the ADAS1000-4, it excludes respiration and advanced pace detection features, offering a streamlined solution for basic ECG signal acquisition. It shares the same physical package options and general interface protocols with other members of the family.

Replacement Considerations

The ADAS1000-1BCPZ-RL is a verified five-channel alternative within the same series. Note that the ADAS1000-1 provides five ECG channels instead of three and includes respiration and pace detection features absent in the ADAS1000-3. Pinout and register compatibility should be reviewed before substitution.