LTC6404IUD-1#TRPBF

Overview

The LTC6404IUD-1#TRPBF is a low noise, high precision fully differential input/output amplifier/driver from Analog Devices. It operates on a single supply voltage ranging from 2.7V to 5.25V and draws approximately 27.3mA of supply current. The device features a closed-loop bandwidth extending from DC to 600MHz and includes an integrated 88.5MHz differential single-pole lowpass filter with dedicated filtered outputs. It provides rail-to-rail output swing, adjustable output common mode voltage, and hardware shutdown functionality that reduces current consumption to 250μA.

Feature Summary

• Fully differential input and output architecture optimized for driving analog-to-digital converters
• Integrated 88.5MHz differential single-pole lowpass filter with separate filtered output pins
• Hardware shutdown feature significantly reduces power consumption during inactive periods
• Adjustable output common mode voltage allows flexible signal level translation

Applications

• Differential input to analog-to-digital converter driver
• Single-ended to differential conversion and amplification
• Common mode level translation in signal processing chains

Procurement Notes

Verify the specific temperature grade suffix (I) matches the required operating range of -40°C to 85°C. Confirm the TRPBF suffix indicates tape and reel packaging rather than tube packaging. Ensure the lead-free finish designation (#PBF) aligns with environmental compliance requirements. Cross-reference the manufacturer part number with official Analog Devices documentation to validate authenticity before procurement.

Selection Notes

Select this component when a unity-gain stable fully differential amplifier is required. The LTC6404-1 variant is specifically designed for closed-loop gains greater than or equal to 1V/V. Consider the integrated filtering capability if out-of-band noise suppression is needed without external components. Evaluate the 600MHz bandwidth against system frequency requirements to ensure adequate performance margins.

Part Context

This part belongs to the LTC6404 family of AC precision amplifiers characterized for operation over extended industrial temperature ranges. The 'I' suffix denotes the industrial temperature grade (-40°C to 85°C), distinguishing it from commercial (C) and automotive/high-reliability (H) variants. The device is housed in a compact 3mm x 3mm 16-lead QFN package suitable for space-constrained designs.

Replacement Considerations

LTC6404IUD-1#PBF is the identical functional equivalent packaged in tubes instead of tape and reel.