LT6658BHMSE-3.3#PBF

Overview

The LT6658BHMSE-3.3#PBF is a precision dual output voltage reference from Analog Devices, featuring a fixed 3.3V output in a 16-lead MSOP package. It operates within a temperature range of -40°C to +125°C with an initial accuracy of ±0.1% and a maximum temperature coefficient of 20ppm/°C. The device supports up to 36V input voltage and includes thermal shutdown protection.

Feature Summary

• Dual outputs track each other over temperature and load for synchronized precision
• Combines low drift reference performance with linear regulator capabilities
• Kelvin sense connections ensure high load regulation under heavy loading

Applications

• Microcontroller or FPGA with ADC/DAC Applications
• Data Acquisition Systems
• Automotive Control and Monitoring

Procurement Notes

Verify the specific suffix #PBF indicates RoHS compliance when sourcing. Confirm the H-grade designation matches the required junction temperature range for your application environment. Ensure the MSOP-16 footprint aligns with your PCB layout constraints before finalizing procurement.

Selection Notes

Select this B-grade variant if a 20ppm/°C temperature coefficient meets system requirements. The H-grade specifies extended operating temperatures up to 125°C. Verify that the 3.3V fixed output suits the target circuit; external resistors can adjust outputs up to 6V if needed.

Part Context

This component belongs to the LT6658 family of Refulators, which integrate precision references with buffer amplifiers. The B-grade denotes standard precision specifications compared to the higher-accuracy A-grade. The HMSE suffix identifies the 16-lead plastic MSOP package with an exposed pad for thermal management.

Replacement Considerations

LT6658AHMSE-3.3#PBF offers improved accuracy and lower drift but requires verification of cost and availability differences.