ADAS1000-2BCPZ

Overview

The ADAS1000-2BCPZ is a five-channel ECG analog front-end designed as a secondary companion device for the ADAS1000 family. It operates in gang mode to expand channel counts beyond five electrodes. The component provides digitized biopotential signals via SPI with 19-bit resolution at 2 kHz data rates. Power consumption reaches 27 mW in high-performance mode with all channels active. It supports AC/DC lead-off detection and includes a calibration DAC input for synchronized testing with primary devices.

Feature Summary

• Secondary ECG Front-End: Designed exclusively for parallel operation with primary ADAS1000 or ADAS1000-1 devices to support 10+ electrode measurements.
• Signal Acquisition: Features five acquisition channels with 19-bit resolution, supporting data rates of 2 kHz, 16 kHz, and 128 kHz.
• Low Power Operation: Consumes 27 mW in high-performance mode and 21 mW in low-power mode when all five channels are enabled.
• Diagnostic Support: Includes AC and DC lead-off detection algorithms and a calibration DAC input for system verification.

Applications

• Multi-lead ECG monitoring systems requiring more than five simultaneous channels
• Portable telemetry and Holter monitors
• Bedside patient monitoring stations
• Cardiac defibrillators and AEDs

Procurement Notes

Verify package configuration upon receipt; the BCPZ suffix indicates a 56-lead LFCSP variant. Confirm that the design utilizes a primary ADAS1000 controller, as this device lacks standalone interface capabilities. Ensure IOVDD levels match the host processor logic voltage range between 1.65 V and 3.6 V.

Selection Notes

Select the ADAS1000-2BCPZ only when expanding an existing ADAS1000-based architecture to increase electrode count. This model excludes respiration measurement and internal pace detection features found in the primary ADAS1000 variant. Use the BCZ suffix if a 64-lead LQFP package is required instead of the LFCSP form factor.

Part Context

This component belongs to the Analog Devices ADAS1000 series of biopotential analog front-ends. Unlike the standard ADAS1000 which functions as a master, the ADAS1000-2 is a subset device intended strictly for slave/gang operations. It shares the same core ADC and amplifier architecture but omits specific control peripherals to optimize cost and power for multi-device configurations.

Replacement Considerations

Direct functional replacement requires another ADAS1000-2 variant (e.g., ADAS1000-2BCZ) matching the package type. Standalone ADAS1000 units cannot replace this part in a gang configuration without significant hardware redesign.