LTC6404IUD-4#TRPBF

Overview

The LTC6404IUD-4#TRPBF is a high-speed, low-noise, fully differential input/output amplifier designed for single-supply operation. It features a closed-loop bandwidth of 600MHz and a slew rate of 1200V/μs. The device operates on supply voltages ranging from 2.7V to 5.25V with a typical supply current of 30mA. It includes an integrated 88.5MHz differential low-pass filter and offers adjustable output common mode voltage. The component is housed in a compact 3mm × 3mm 16-pin QFN package.

Feature Summary

• Fully differential input and output architecture optimized for precision signal processing
• Integrated 88.5MHz differential single-pole low-pass filter for noise reduction
• Hardware shutdown feature significantly reduces power consumption during idle states
• Adjustable output common mode voltage allows flexible interface compatibility

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 configuration. Confirm the 'I' grade designation corresponds to the specified industrial temperature range requirements for your application environment. Ensure the part number matches the exact gain-stable variant required for your circuit design before finalizing procurement orders.

Selection Notes

Select this model when a closed-loop gain of four or greater is required, as it is specifically designed for gains equal to or greater than 4V/V. Consider the 16-pin QFN package constraints for thermal management and PCB layout. Evaluate the need for the built-in filtering against external filter requirements to optimize system complexity and cost.

Part Context

This component belongs to the LTC6404 family of AC precision amplifiers. The IUD-4 variant specifically denotes the industrial temperature grade and the unity-gain stable configuration for gains ≥4V/V. It is part of Analog Devices' portfolio of high-performance signal chain components designed for demanding RF and data acquisition applications.

Replacement Considerations

LTC6404CUD-4#TRPBF

FAQ

What is the purpose of the OUTF+ and OUTF– pins?

These pins provide access to the internal 88.5MHz differential single-pole low-pass filtered outputs, offering additional noise suppression compared to the standard unfiltered OUT+ and OUT– pins.

How does the SHDN pin function?

The SHDN pin enables a hardware shutdown mode that reduces the supply current consumption significantly, allowing the device to enter a low-power state when not actively processing signals.