LTC1258CS8-2.5#PBF

Overview

The Analog Devices LTC1258CS8-2.5#PBF is a micropower bandgap voltage reference in an 8-lead plastic SO package. It provides a fixed 2.5V output with a maximum initial accuracy of 0.15% and a temperature coefficient of 40ppm/°C within the specified range. The device operates with an input voltage up to 12.6V, featuring a maximum dropout voltage of 200mV at 10mA load current. Quiescent current is typically 4μA, and it can source up to 10mA while sinking up to 2mA.

Feature Summary

• Curvature compensated bandgap architecture for low drift and high accuracy
• Internal P-channel pass transistor enables ultralow quiescent current
• Capable of sourcing 10mA and sinking 2mA without external components
• Stable operation guaranteed with zero to 1μF output capacitance

Applications

• Battery-powered systems requiring extended life
• Handheld instruments
• Precision power supplies
• A/D and D/A converters

Procurement Notes

Verify the specific suffix #PBF indicates lead-free finish and RoHS compliance. Confirm the S8 designation corresponds to the 8-lead plastic SO package. Ensure the operating environment remains within the 0°C to 70°C specified temperature range for guaranteed electrical parameters.

Selection Notes

Select this component when a fixed 2.5V reference is required in a small SO-8 footprint. It is suitable for applications needing moderate load drive capability compared to shunt references. Consider the 40ppm/°C drift specification against system accuracy requirements.

Part Context

This part belongs to the LTC1258 series of micropower low dropout references. Other variants include adjustable versions and different fixed voltages such as 3V, 4.1V, and 5V. The series shares core architectural features including curvature compensation and internal pass transistors across all package options.

Replacement Considerations

LTC1258CMS8-2.5#PBF offers the same electrical specifications in an MSOP package.