LM285Z-2.5RAG

Overview

The LM285Z-2.5RAG is a micropower shunt voltage reference manufactured by onsemi, featuring a fixed 2.5V output with an initial accuracy of ±1.5%. It operates within a wide current range of 20 μA to 20 mA and exhibits a temperature coefficient of 80 ppm/°C. The device utilizes a TO-92-3 through-hole package and supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Micropower operation suitable for battery-powered applications
• Low dynamic impedance for stable regulation
• Wide operating current range from 20 μA to 20 mA

Applications

• Portable instrumentation
• Battery-operated systems
• Current loop instruments

Procurement Notes

Verify the specific suffix RAG indicates tape-and-reel packaging when sourcing. Confirm the manufacturer is onsemi rather than Texas Instruments or Analog Devices, as part numbers may overlap across vendors. Ensure the component meets RoHS standards if required by the design specification.

Selection Notes

Select this component for designs requiring a low-cost, through-hole 2.5V reference. The ±1.5% tolerance and 80 ppm/°C temperature coefficient are suitable for general-purpose analog circuits. Consider the TO-92 package constraints for PCB layout and thermal management in enclosed environments.

Part Context

This part belongs to the LM285 series of two-terminal bandgap voltage references. It shares core electrical characteristics with other variants like the LM285Z-2.5/NOPB but differs in packaging format and manufacturer origin. The series is designed for precision applications requiring stable voltage references over varying temperatures.

Replacement Considerations

LM285Z-2.5/NOPB (Texas Instruments) offers identical electrical specifications in a similar TO-92 package. LM385-2.5 provides comparable performance with potentially different temperature coefficients depending on the grade.