ADAS1000-4BCPZ

Overview

The ADAS1000-4BCPZ-RL is a low-power, three-electrode electrocardiogram (ECG) analog front end from Analog Devices. It integrates three acquisition channels and one driven lead, supporting AC/DC lead-off detection and internal pace detection algorithms. The device features scalable noise versus power control, thoracic impedance measurement, and fast overload recovery. It operates on a 3.3 V analog supply and 1.8 V digital supplies, consuming as little as 15 mW in three-lead mode. The component is housed in a 56-lead LFCSP package and supports SPI/QSPI/DSP-compatible serial interfaces for data output.

Feature Summary

• Three ECG acquisition channels with integrated right leg drive and shield driver
• Internal pace detection algorithm operating on all three leads
• Thoracic impedance measurement capability for respiration monitoring
• Scalable noise vs. power architecture with programmable gain settings

Applications

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

Procurement Notes

Verify the specific ordering suffix to confirm packaging configuration. The BC part number variant typically indicates a tape and reel format, distinct from tray packaging. Confirm the revision level matches the design requirements. Ensure compatibility with the intended microcontroller interface voltage levels before procurement.

Selection Notes

Select this model over the ADAS1000-3 when respiration and pace detection features are required. The ADAS1000-4 provides full functionality including internal pacing artifact detection, whereas the ADAS1000-3 lacks these specific diagnostic capabilities. Consider the 56-lead LFCSP package for space-constrained portable designs compared to the 64-lead LQFP option.

Part Context

This component belongs to the ADAS1000 series of biopotential analog front ends designed for ECG applications. The series includes variants like the ADAS1000 (5-channel) and ADAS1000-1. The ADAS1000-4 specifically targets cost-sensitive or compact 3-lead applications while maintaining high performance and compliance with medical standards such as IEC60601.

Replacement Considerations

The ADAS1000-3 is a functional substitute if respiration and pace detection are not needed. The ADAS1000-2 can be used as a secondary companion device to expand channel counts when paired with a primary ADAS1000 or ADAS1000-1.