LTC6406IUD#TRPBF

Overview

The LTC6406IUD#TRPBF is a fully differential amplifier with rail-to-rail input and adjustable output common mode voltage, optimized for single-supply operation. It features a 3GHz gain-bandwidth product and an 800MHz unity-gain bandwidth. The device operates on a 2.7V to 3.5V supply, drawing 18mA of current. It includes a hardware shutdown feature reducing consumption to 300μA. The component is housed in a compact 16-lead QFN package and supports an operating temperature range from -40°C to 85°C.

Feature Summary

• Rail-to-rail differential input stage compatible with wide common mode ranges
• Adjustable output common mode voltage via external VOCM pin
• Low noise density of 1.6nV/√Hz for high signal integrity
• Hardware shutdown capability for significant power reduction

Applications

• Differential input ADC driver for 12-bit to 16-bit converters
• Single-ended to differential conversion with level shifting
• High linearity direct conversion receivers

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the I-grade designation matches the required industrial temperature range of -40°C to 85°C. Ensure the QFN-16 footprint aligns with PCB layout capabilities. Cross-reference the manufacturer's latest discontinuance notifications to confirm active production status before finalizing procurement plans.

Selection Notes

Select this component for applications requiring high-speed signal conditioning with low distortion. The adjustable output common mode allows flexible interface matching to various ADC input ranges. Consider the 18mA supply current against system power budgets. The 3GHz bandwidth supports high-frequency inputs up to 50MHz with excellent linearity. Evaluate thermal performance within the specified junction temperature limits.

Part Context

This part belongs to the LTC6406 family of wideband differential amplifiers designed by Analog Devices. It is specifically engineered to drive analog-to-digital converters in data acquisition systems. The IUD variant denotes the industrial temperature grade and QFN package configuration, distinguishing it from commercial grades or alternative MSOP packages within the same functional series.

Replacement Considerations

Consult official documentation for qualified substitutes. Verify that any replacement maintains the 3GHz gain-bandwidth product and fully differential architecture. Ensure the alternative component supports the 2.7V to 3.5V supply range and offers comparable noise and distortion specifications.