LT6604IUFF-2.5#TRPBF

Overview

The LT6604IUFF-2.5#TRPBF is a dual very low noise differential amplifier and 2.5MHz lowpass filter in a 34-lead QFN package. It integrates two matched channels, each featuring a fourth-order Chebyshev lowpass filter. The device operates on single 3V or 5V supplies, or ±5V dual supplies. Key electrical parameters include a gain bandwidth product of 5MHz, a common mode rejection ratio of 63dB, and a power supply current of 26mA at 3V. The input referred noise is 51μV RMS within a 10kHz to 2.5MHz bandwidth.

Feature Summary

• Integrates two fully differential amplifiers with fourth-order lowpass filters approximating a Chebyshev response
• Provides resistor-programmable differential gain using external input resistors
• Features adjustable output common mode voltage for direct ADC interfacing
• Ensures guaranteed phase and gain matching between the two independent channels

Applications

• Dual differential ADC driver and filter
• Single-ended to differential converter
• High speed test and measurement equipment
• Medical imaging systems

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the I-grade designation ensures operation across the full industrial temperature range of -40°C to 85°C. Ensure the 34-lead QFN footprint matches the PCB layout requirements. Check for RoHS compliance documentation as specified by Analog Devices.

Selection Notes

Select this component when simultaneous filtering and amplification are required in a compact form factor. The integrated design reduces external component count compared to discrete solutions. Consider the 2.5MHz cutoff frequency against the signal bandwidth requirements. Evaluate the 3V to 5V supply options for power constraints.

Part Context

This part belongs to the LT6604 family of dual differential amplifiers with integrated lowpass filters. The IUFF-2.5 variant specifically denotes the industrial temperature grade and the 2.5MHz filter cutoff frequency. It shares the same pinout and core architecture as other variants in the series, differing primarily in temperature rating and filter bandwidth specifications.

Replacement Considerations

LT6604CUFF-2.5#TRPBF