LT6658BIMSE-3#PBF

Overview

The LT6658BIMSE-3#PBF is a precision dual output voltage reference from Analog Devices, packaged in a 16-lead MSOP. It provides a fixed 3V output with an initial accuracy of ±0.1% and a maximum temperature coefficient of 20ppm/°C over the industrial range of -40°C to +85°C. The device features separate supply pins for each output, supporting up to 150mA sourcing on Output 1 and 50mA on Output 2. It operates with input voltages up to 36V and includes thermal shutdown protection.

Feature Summary

• Dual independent outputs with identical precision specifications that track each other across temperature and load variations
• High current capability allowing simultaneous powering of microcontrollers and driving high-resolution ADC/DAC reference inputs
• Kelvin sense connections ensure low load regulation while maintaining stability with capacitors ranging from 1µF to 50µF

Applications

• Microcontroller or FPGA systems requiring integrated ADC/DAC references
• Data acquisition systems demanding precise voltage standards
• Automotive control and monitoring circuits
• Precision instrumentation and process control equipment

Procurement Notes

Verify the specific suffix #PBF indicates RoHS compliance when ordering. Confirm the package type matches the design requirements, as this part uses the MSE16 plastic MSOP format. Check the manufacturer's latest documentation for any potential obsolescence notices or alternative lead-free options before finalizing procurement plans.

Selection Notes

Select this B-grade variant when a 3V output is required with ±0.1% initial accuracy and 20ppm/°C drift. Choose the MSE package for standard surface mount assembly. Consider the A-grade version if tighter 0.05% accuracy is needed, or the H-grade if operation above 85°C is necessary.

Part Context

This component belongs to the LT6658 family of Refulator™ devices, which combine voltage reference and linear regulator performance. The 'B' designation specifies the B-grade performance tier, while 'IMSE' identifies the industrial temperature range and MSOP package. The '#3' suffix denotes the 3V fixed output option within this series.

Replacement Considerations

LT6658AIMSE-3#PBF offers higher accuracy (0.05%) and lower drift (10ppm/°C). LT6658BHMSE-3#PBF extends the operating temperature range to 125°C. Both are direct pin-compatible replacements within the same package.