LT6658AHDE-3#TRPBF

Overview

The LT6658AHDE-3#TRPBF is a precision dual output voltage reference from Analog Devices, featuring a 3V nominal output. It operates within an extended temperature range of -40°C to +125°C and utilizes a 16-lead DFN package with tape and reel packaging. The device provides high accuracy with a maximum initial tolerance of ±0.05% and a low temperature coefficient of 10ppm/°C. Output 1 supports sourcing up to 150mA and sinking 20mA, while Output 2 supports sourcing up to 50mA and sinking 20mA. It accepts input voltages up to 36V.

Feature Summary

• Combines the performance of a precision voltage reference and a linear regulator for driving high-resolution ADCs and DACs under heavy loading.
• Features Kelvin sense connections on outputs to achieve extremely low load regulation across wide current ranges.
• Includes separate supply pins for each output to allow power consumption reduction and buffer amplifier isolation.
• Offers thermal shutdown protection and short circuit protection to prevent thermal overstress during fault conditions.

Applications

• Microcontroller or FPGA systems with integrated ADC/DAC peripherals
• High-performance data acquisition systems
• Automotive control and monitoring circuits
• Precision low noise regulators

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when ordering. Confirm the AH designation corresponds to the H-grade operating temperature range of -40°C to +125°C. Ensure the DE suffix matches the required 16-lead DFN package footprint for PCB layout compatibility. Cross-reference the full part number against official distributor catalogs to confirm availability status.

Selection Notes

Select this component when both high current drive capability and ultra-low drift are required for dual-channel applications. The A-grade specification ensures tighter initial accuracy compared to B-grade options. Consider the exposed pad thermal management requirements inherent to the DFN package design. Verify that the input voltage headroom meets the dropout requirements for the intended load currents.

Part Context

This part belongs to the LT6658 family of Refulator devices, which merge reference and regulator functions. The 'A' grade denotes superior accuracy specifications compared to the 'B' grade variants. The 'H' suffix specifies the extended industrial temperature range suitable for demanding environments. The 'DE' package code identifies the specific 4mm x 3mm DFN form factor used in this configuration.

Replacement Considerations

LT6658BHDE-3#TRPBF offers identical electrical characteristics but with relaxed B-grade accuracy limits (±0.1% accuracy, 20ppm/°C drift). LT6658AIMSE-3#TRPBF provides equivalent A-grade performance in a 16-lead MSOP package instead of DFN. LT6658AHDE-3#PBF is the same device but supplied in tube packaging rather than tape and reel.