ADM12914-2ARQZ

Supervisors Overview

The ADM12914-2ARQZ is a quad undervoltage/overvoltage (UV/OV) positive/negative voltage supervisor manufactured by Analog Devices Inc. It features industry-leading threshold accuracy of ±0.8% over the extended temperature range. The device supervises up to two negative rails and includes adjustable UV and OV input thresholds. It provides a 1 V buffered reference output and open-drain UV and OV reset outputs with an adjustable reset timeout that includes a disable option. The outputs are guaranteed down to VCC of 1 V, ensuring reliable operation in low-voltage systems.

Supervisors Feature Summary

• Quad UV/OV supervision for positive and negative voltage rails
• High precision threshold accuracy across extended temperature ranges
• Adjustable input thresholds and reset timeout with disable capability
• Open-drain reset outputs guaranteed at low supply voltages

Supervisors Applications

• Monitoring negative voltage rails in multi-rail power systems
• Ensuring voltage stability in industrial control equipment
• Supervising power integrity in telecommunications infrastructure
• Protecting sensitive electronics in automotive applications

Supervisors Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or direct manufacturer channels. Confirm package integrity and pin alignment upon receipt. Check for RoHS compliance documentation as specified in official datasheets. Ensure storage conditions meet semiconductor handling standards to prevent moisture damage or electrostatic discharge before installation.

Supervisors Selection Notes

Select this component when precise monitoring of both positive and negative voltage rails is required. The ±0.8% accuracy makes it suitable for applications demanding tight voltage tolerance. Consider the adjustable thresholds and reset timeout features for flexible system integration. Verify that the 16-lead QSOP package fits the available PCB space and thermal requirements.

Supervisors Part Context

The ADM12914 series belongs to Analog Devices' portfolio of supervisory ICs designed to enhance system reliability. These circuits monitor voltage levels to ensure they remain within specified limits, preventing malfunction due to under-voltage or over-voltage conditions. The ADM12914 specifically addresses the need for accurate supervision of negative rails, which are common in complex electronic systems requiring multiple power domains.

Supervisors Replacement Considerations

The ADM2914 is a documented similar part number within the Analog Devices family offering quad UV/OV supervision. Verify pin compatibility and electrical specifications before substitution. Ensure the replacement meets the same accuracy and operating temperature requirements.