ADAS1000-4BSTZ-RL

Overview

The ADAS1000-4BSTZ-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 and DC lead-off detection, internal pace detection algorithms, and thoracic impedance measurement for respiration monitoring. The device features scalable noise versus power control, fast overload recovery, and programmable data rates up to 128 kHz. It operates within a temperature range of −40°C to +85°C and is available in 56-lead LFCSP and 64-lead LQFP packages.

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 multiple power-down modes

Applications

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

Procurement Notes

Verify the BSTZ-RL suffix against the manufacturer's current ordering guide to confirm package type and reel specifications. Ensure compatibility with system voltage levels, specifically AVDD at 3.3 V and IOVDD between 1.65 V and 3.6 V. Confirm thermal management requirements for the selected package option within the specified operating temperature range.

Selection Notes

Select the ADAS1000-4 over the ADAS1000-3 when respiration monitoring and internal pace detection are required. Consider the ADAS1000-1 or ADAS1000 if five-channel acquisition is needed instead of three. Evaluate the trade-off between high-performance mode noise reduction and increased power consumption based on battery life constraints.

Part Context

The ADAS1000-4 is part of the ADAS1000 series, designed to simplify biopotential signal acquisition. It complements companion devices like the ADAS1000-2 for expanded channel counts. The series targets both portable, battery-powered applications and high-end diagnostic machines by integrating signal conditioning, ADC, and digital interfaces into a single small-form-factor component.

Replacement Considerations

The ADAS1000-3 is a compatible alternative if respiration and pace detection features are not required. For five-channel configurations, consider the ADAS1000, ADAS1000-1, or ADAS1000-2. Verify pinout and register compatibility before substituting.