LTC6404HUD-2#TRPBF

Overview

The LTC6404HUD-2#TRPBF is a high-speed, low-noise, fully differential input/output amplifier designed for driving analog-to-digital converters. It operates on a single supply voltage ranging from 2.7V to 5.25V and draws approximately 29.8mA of supply current at 3V. The device features a closed-loop bandwidth extending from DC to 600MHz and includes a built-in 88.5MHz differential single-pole lowpass filter with dedicated filtered outputs. It utilizes a compact 16-lead QFN package measuring 3mm x 3mm.

Feature Summary

• Fully differential input and output architecture optimized for ADC driver applications
• Integrated hardware shutdown feature significantly reduces power consumption
• Built-in differential lowpass filter provides additional signal conditioning
• Adjustable output common mode voltage allows flexible interface configurations

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 'HUD' indicates an extended temperature range of -40°C to 125°C compared to commercial or industrial grades. Confirm the '#TRPBF' designation corresponds to tape and reel packaging with lead-free finish. Ensure compatibility with the required operating voltage range and thermal management for the QFN package.

Selection Notes

Select this variant when a closed-loop gain greater than or equal to 2V/V is required. The LTC6404-2 is distinct from the unity-gain stable LTC6404-1 and the higher gain LTC6404-4. Consider the 600MHz bandwidth and low noise density for high-frequency signal paths requiring precise amplitude and phase characteristics.

Part Context

This component belongs to the LTC6404 family of AC precision amplifiers. The family includes variants optimized for different closed-loop gains: unity gain (LTC6404-1), gain >= 2V/V (LTC6404-2), and gain >= 4V/V (LTC6404-4). All variants share the same fully differential topology, low noise performance, and integrated filtering capabilities within the same physical package.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.