LT6658BIDE-2.5#PBF

Overview

The LT6658BIDE-2.5#PBF is a precision dual output voltage reference from Analog Devices, featuring a fixed 2.5V output with an initial accuracy of ±0.1% and a maximum temperature coefficient of 20ppm/°C. It operates within a junction temperature range of -40°C to +85°C and utilizes a 16-lead DFN package. The device integrates two independent outputs capable of sourcing up to 150mA on Output 1 and 50mA on Output 2, while supporting sink currents of 20mA each. Designed for high-performance applications, it offers low noise characteristics and wide input voltage tolerance.

Feature Summary

• Dual output architecture with identical precision specifications that track each other over temperature and load variations
• Integrated Refulator™ technology combining precision reference performance with linear regulator capabilities
• Kelvin sense connections enable extremely low load regulation for heavy loading conditions
• Separate supply pins allow isolation of buffer amplifiers to reduce power consumption

Applications

• Driving reference inputs of high resolution ADCs and DACs under heavy loading
• Powering microcontrollers and other circuitry simultaneously with analog signal chains
• Precision data acquisition systems requiring stable voltage references
• Automotive control and monitoring applications

Procurement Notes

Verify the specific suffix #PBF indicates RoHS and WEEE compliance status before procurement. Confirm the B-grade designation matches the required 0.1% accuracy and 20ppm/°C drift specifications for your design. Ensure the DFN-16 package footprint aligns with your PCB layout constraints. Check current availability status as distribution may vary by region.

Selection Notes

Select this component when dual isolated outputs are required for simultaneous analog and digital reference needs. The B-grade specification provides a balance between cost and precision for general industrial applications. Consider the thermal management requirements of the exposed pad DFN package if operating near maximum current limits. Verify input voltage headroom meets the dropout requirements for your specific supply rails.

Part Context

This part belongs to the LT6658 family of precision dual output references. It shares architectural similarities with MSOP variants but utilizes a DFN package for different thermal and spatial constraints. The family includes A-grade and H-grade options offering tighter tolerances and wider temperature ranges respectively.

Replacement Considerations

LT6658AIDE-2.5#PBF offers improved accuracy (±0.05%) and lower drift (10ppm/°C) in the same package.