LT6658BHMSE-3#PBF

Overview

The LT6658BHMSE-3#PBF is a precision dual output voltage reference from Analog Devices, housed in a 16-lead MSOP package. It provides a fixed 3V output with an initial accuracy of ±0.1% and a maximum temperature coefficient of 20ppm/°C. The device operates within a junction temperature range of -40°C to 125°C and supports input voltages up to 36V. Key electrical specifications include a typical supply current of 1.9mA at no load, a maximum shutdown current of 1.5µA, and short-circuit protection for both outputs.

Feature Summary

• Dual independent outputs with identical precision specifications that track each other over temperature and load variations.
• Integrated Refulator architecture combining high-performance voltage referencing with linear regulator capabilities for heavy loading.
• Kelvin sense connections on outputs to achieve ultra-low load regulation by eliminating trace resistance errors.
• Separate supply pins (VIN1, VIN2) allow for independent power management and isolation of buffer amplifiers.

Applications

• Microcontroller or FPGA systems requiring stable power for integrated ADC/DAC peripherals
• Data acquisition systems demanding high-resolution signal conditioning
• Automotive control and monitoring circuits operating in extended temperature environments

Procurement Notes

Verify the specific suffix #PBF indicates RoHS compliance when sourcing. Confirm the H-grade designation matches the required -40°C to 125°C operating range for your application. Ensure the MSOP-16 footprint aligns with your PCB layout constraints. Cross-reference the B-grade accuracy and drift specifications against system requirements before finalizing procurement.

Selection Notes

Select this component when dual isolated references are needed with high current drive capabilities. The B-grade offers a balance of cost and performance with 20ppm/°C drift. Consider the H-grade variant if operation above 85°C ambient is expected. Verify input voltage headroom requirements against the dropout characteristics for the 3V output configuration.

Part Context

This part belongs to the LT6658 family of precision dual output references. It shares the same core architecture as other voltage options like the 2.5V and 5V variants but is factory-trimmed for a 3V output. The MSE suffix denotes the 16-lead plastic MSOP package, distinguishing it from the DFN package options available in the series.

Replacement Considerations

LT6658BHDE-3#PBF serves as a direct pin-compatible alternative using the DFN-16 package.