LT6658AHDE-1.2#TRPBF

Overview

The LT6658AHDE-1.2#TRPBF is a precision dual output voltage reference from Analog Devices, featuring a fixed 1.2V output in a 16-lead (4mm × 3mm) plastic DFN package with an exposed pad. It operates within a junction temperature range of –40°C to 125°C and provides H-grade performance with a maximum initial accuracy of ±0.05% and a maximum temperature coefficient of 10ppm/°C. The device integrates two independent outputs: Output 1 supports up to 150mA sourcing and 20mA sinking, while Output 2 supports up to 50mA sourcing and 20mA sinking. Both outputs track each other over temperature and load, utilizing Kelvin sense connections for high load regulation.

Feature Summary

• Combines the performance of a precision voltage reference and a linear regulator to drive high-resolution ADCs and DACs under heavy loading.
• Features separate supply pins for each output to reduce power consumption and isolate buffer amplifiers.
• Includes thermal shutdown protection and short circuit prevention mechanisms.

Applications

• Microcontroller or FPGA systems with integrated ADC/DAC
• Data acquisition systems
• Automotive control and monitoring circuits

Procurement Notes

Verify that the specific part number matches the required package type and temperature grade. Confirm the ordering suffix corresponds to the tape and reel format. Ensure compatibility with the intended operating voltage range and load requirements before finalizing procurement.

Selection Notes

Select this component when dual-output tracking is required for precision analog front ends. The H-grade specification ensures operation across extended industrial temperatures. Consider the available noise reduction pin if lower integrated noise is necessary for sensitive measurement applications.

Part Context

This device belongs to the LT6658 family of Refulators, which merge reference and regulator functions. The AHDE variant specifically denotes the H-grade temperature rating and the DE package style. Other options in the series include different fixed voltages and A-grade specifications for commercial temperature ranges.

Replacement Considerations

LT6658BHDE-1.2#TRPBF