ADAS1000BSTZ

Overview

The ADAS1000BSTZ is a low-power, five-electrode electrocardiogram (ECG) analog front end from Analog Devices. It features six 19-bit ADCs and supports serial SPI/QSPI/DSP-compatible interfaces. Operating on supply voltages of 1.71 V to 5.5 V, the device measures ECG signals, thoracic impedance, pacing artifacts, and lead-on/lead-off status. It delivers data at programmable rates with power consumption as low as 11 mW for single-lead operation. The component is housed in a 64-lead LQFP package and operates within a temperature range of -40°C to +85°C.

Feature Summary

• Five acquisition channels plus one driven lead for comprehensive ECG monitoring
• Integrated AC and DC lead-off detection algorithms
• Internal pace detection algorithm operating on three leads
• Thoracic impedance measurement capability for respiration monitoring

Applications

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

Procurement Notes

Verify the specific suffix BSTZ against the manufacturer's ordering guide to confirm the 64-lead LQFP package variant. Ensure compatibility with system voltage requirements, noting the AVDD range spans 3.15 V to 5.5 V. Confirm that the primary interface features align with design needs, as secondary companion devices may be required for expanded channel counts.

Selection Notes

Select this model when five electrode inputs are sufficient for the target application. The ADAS1000 includes respiration and pace detection features; if these are unnecessary, consider the ADAS1000-1 variant. For systems requiring more than five electrodes, pair this primary device with an ADAS1000-2 secondary unit. Ensure the PCB layout accommodates the 10 mm x 10 mm body size of the LQFP package.

Part Context

The ADAS1000 series comprises multiple variants tailored for different ECG configurations. The ADAS1000 serves as the full-featured primary device with respiration and pace detection. The ADAS1000-1 offers ECG channels without auxiliary features. The ADAS1000-2 is a companion slave device used to scale channel counts beyond five electrodes in multi-chip setups.

Replacement Considerations

Public confirmed substitute part numbers: ADAS1000BCPZ, ADAS1000BSTZ.