LT6658AHMSE-3.3#PBF

Overview

The LT6658AHMSE-3.3#PBF is a precision dual output voltage reference from Analog Devices, operating within an extended temperature range of -40°C to +125°C. It provides a fixed nominal output voltage of 3.3V with an initial accuracy of ±0.05% and a maximum temperature coefficient of 10ppm/°C. The device features Output 1 capable of sourcing up to 150mA and Output 2 sourcing up to 50mA. It operates with input voltages up to 36V and utilizes a 16-lead MSOP package.

Feature Summary

• Combines low drift precision reference performance with linear regulator capabilities for high current drive
• Features two independent outputs that track each other over temperature and load variations
• Includes separate supply pins for each output to reduce power consumption and isolate buffer amplifiers
• Provides thermal shutdown protection and short circuit prevention mechanisms

Applications

• Microcontroller or FPGA systems requiring integrated ADC/DAC references
• Data acquisition systems demanding high precision voltage sources
• Automotive control and monitoring circuits
• Precision low noise regulator designs

Procurement Notes

Verify the specific suffix 'HMSE' indicates the H-grade junction temperature range (-40°C to 125°C) and MSOP package type. Confirm the '#PBF' designation ensures RoHS compliance. Cross-reference the full part number against official Analog Devices documentation to ensure correct grade and package selection before procurement.

Selection Notes

Select this component when an extended industrial temperature range is required alongside high current capability. The A-grade specifications provide tighter accuracy and lower drift compared to B-grade options. Ensure the application benefits from the dual-output tracking feature and the ability to configure external resistors for adjustable voltages up to 6V.

Part Context

This part belongs to the LT6658 family of Refulators, which merge voltage reference and linear regulator functions. The AH variant specifically denotes the higher temperature grade suitable for automotive and harsh environments. It shares architectural similarities with other LT6658 models but differs in thermal rating and package configuration.

Replacement Considerations

LT6658BHMSE-3.3#PBF offers similar functionality with relaxed accuracy and drift specifications.