LTC6404HUD-1#TRPBF

Overview

The LTC6404HUD-1#TRPBF is a high-speed, fully differential input/output amplifier optimized for single-supply operation. It features a closed-loop bandwidth of 600MHz and a slew rate of 450V/μs. The device provides an input-referred voltage noise density of 1.5nV/√Hz and supports supply voltages from 2.7V to 5.25V. It includes a hardware shutdown feature that reduces current consumption significantly. The component operates over an extended temperature range of –40°C to 125°C and is housed in a compact 3mm × 3mm 16-pin QFN package.

Feature Summary

• Fully differential input and output architecture with adjustable output common mode voltage
• Integrated 88.5MHz differential single-pole lowpass filter on filtered outputs
• Hardware shutdown capability for reduced power consumption
• Rail-to-rail output swing with input range extending to ground

Applications

• Differential input A/D converter driver
• Single-ended to differential conversion and amplification
• Common mode level translation
• Low voltage, low noise signal processing

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the HUD designation corresponds to the –40°C to 125°C industrial temperature grade. Ensure compatibility with the 16-lead QFN footprint during procurement planning. Cross-reference the manufacturer's latest documentation for any updates to lead finish or marking codes.

Selection Notes

Select this variant for applications requiring unity-gain stability and full differential signaling. The HUD grade ensures performance across the widest operating temperature range available in the family. Consider the integrated filter if high-frequency noise suppression is required without external components. Verify supply voltage constraints align with the 2.7V to 5.25V operational window.

Part Context

This component belongs to the LTC6404 family of AC precision amplifiers designed for driving high-resolution ADCs. The -1 suffix denotes the unity-gain stable version within the series. Other variants include gain-stable options for higher closed-loop gains. The family shares similar pinouts and electrical characteristics, differing primarily in stability requirements and gain settings.

Replacement Considerations

LTC6404IUD-1#TRPBF offers identical functionality with a restricted temperature range of –40°C to 85°C. LTC6404CUD-1#TRPBF is suitable for commercial temperature ranges only (0°C to 70°C). These alternatives provide functional substitution if thermal conditions do not require the extended HUD grade.