ADM12914-1ARQZ

Supervisors Overview

The ADM12914-1ARQZ is a quad undervoltage/overvoltage (UV/OV) positive/negative voltage supervisor manufactured by Analog Devices Inc. It features adjustable UV and OV input thresholds with industry-leading threshold accuracy of ±0.8% over the extended temperature range. The device provides a 1 V buffered reference output, open-drain UV and OV reset outputs, and an adjustable reset timeout with a disable option. Outputs are guaranteed down to VCC of 1 V, and it includes glitch immunity with a supply current of 62 μA. It is housed in a 16-lead QSOP package and specified from −40°C to +125°C.

Supervisors Feature Summary

• Quad supervision for up to two negative rails with adjustable UV and OV thresholds
• Industry-leading threshold accuracy of ±0.8% across the extended temperature range
• Open-drain reset outputs guaranteed down to VCC of 1 V with adjustable timeout

Supervisors Applications

• Monitoring negative voltage rails in multi-rail systems
• Ensuring voltage levels remain within specified limits for system reliability
• Supervising power supplies in industrial or automotive environments requiring high accuracy

Supervisors Procurement Notes

Verify availability status as Mouser currently indicates limited supply or special order requirements for this part number. Confirm RoHS compliance details and check for any recent product discontinuance notifications from Analog Devices before finalizing procurement plans. Ensure the QSOP-16 package matches your PCB footprint design constraints.

Supervisors Selection Notes

Select the ADM12914-1ARQZ when precise monitoring of both positive and negative voltage rails is required. Its ±0.8% accuracy makes it suitable for applications demanding tight voltage tolerance. The adjustable thresholds allow customization for specific UV/OV conditions. Consider the 16-lead QSOP package size and the 62 μA supply current for power-sensitive designs.

Supervisors Part Context

The ADM12914 is part of Analog Devices' portfolio of supervisory ICs designed to improve system reliability by monitoring voltage levels. It complements other supervisors like the ADM2914 and ADM6339, focusing on multi-voltage and negative-voltage monitoring capabilities. This component addresses the need for accurate supervision in complex power architectures.

Supervisors Replacement Considerations

Check for direct pin-to-pin replacements within the ADM1291x family. Verify if alternative parts offer similar ±0.8% accuracy and negative rail supervision. Ensure any substitute supports the same 16-lead QSOP package and operates within the -40°C to +125°C temperature range.