LT6658AIMSE-1.2#PBF

Overview

The LT6658AIMSE-1.2#PBF is a precision dual output voltage reference from Analog Devices, operating within the specified junction temperature range of -40°C to +85°C. It provides a fixed nominal output voltage of 1.2V with an initial accuracy of ±0.05% and a maximum temperature coefficient of 10ppm/°C. The device features two independent outputs: Output 1 supports sourcing up to 150mA and sinking up to 20mA, while Output 2 supports sourcing up to 50mA and sinking up to 20mA. It operates with a wide input voltage range up to 36V and utilizes a 16-lead MSOP package.

Feature Summary

• Combines precision voltage reference performance with linear regulator capabilities for high current drive
• Features dual outputs that track each other over temperature and load variations
• Includes Kelvin sense connections on outputs for precise load regulation
• Provides separate supply pins for each output to isolate buffer amplifiers

Applications

• Driving reference inputs of high resolution ADCs and DACs under heavy loading
• Powering microcontrollers and supporting circuitry simultaneously
• Dual output tracking reference systems
• Precision low noise regulators

Procurement Notes

Verify the specific suffix #PBF indicates RoHS compliance when ordering. Confirm the I-grade designation corresponds to the required -40°C to +85°C operating range for your application environment. Ensure the MSOP-16 package footprint matches your PCB layout constraints. Check for availability as distribution status may vary.

Selection Notes

Select this part if a fixed 1.2V output is required rather than the adjustable options available in other variants. The A-grade specification ensures tighter accuracy and drift limits compared to B-grade alternatives. Consider the separate VIN1/VIN2 pins if independent power domain isolation is necessary for noise reduction between the two outputs.

Part Context

This component belongs to the LT6658 family of Refulators, which merge reference and regulator functions. The AIMSE variant specifically denotes the I-grade temperature rating and MSOP package. Other family members include H-grade versions for extended temperatures and DFN packages for different thermal profiles.

Replacement Considerations

LT6658BIMSE-1.2#PBF offers lower accuracy specifications within the same package and temperature range.