LT6604IUFF-15#TRPBF

Overview

The LT6604IUFF-15#TRPBF is a dual very low noise, differential amplifier and 15MHz lowpass filter. It integrates two matched channels, each featuring a fourth-order filter approximating a Chebyshev response. The device operates on 3V, 5V, or ±5V supplies. At unity gain with a 3V supply, it achieves a signal-to-noise ratio of 76dB. Gain is set by external resistors using the formula 536Ω/RIN. It provides adjustable output common mode voltage for ADC interfacing.

Feature Summary

• Integrates dual fully differential amplifiers with fourth-order 15MHz lowpass filters
• Provides guaranteed phase and gain matching between channels
• Features resistor-programmable differential gain via external components
• Includes adjustable output common mode voltage for level shifting

Applications

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

Procurement Notes

Verify the suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the I grade ensures specified performance from -40°C to 85°C. Check pinout compatibility for the 34-lead QFN package during integration. Ensure supply voltages match the 3V, 5V, or ±5V specifications.

Selection Notes

Select this component for applications requiring high channel matching and low distortion. It is suitable for direct ADC interfacing due to adjustable common mode levels. Consider the 15MHz cutoff frequency against system bandwidth needs. Evaluate power supply constraints as it supports single and dual rail configurations.

Part Context

This part belongs to the LT6604 family of dual differential amplifiers with integrated lowpass filters. Variants exist with different cutoff frequencies ranging from 2.5MHz to 20MHz. The I grade denotes industrial temperature range operation. The UFF package is a small plastic QFN form factor.

Replacement Considerations

Check datasheets for other LT6604 variants with different cutoff frequencies. Verify if single-channel versions meet space requirements. Ensure substitute parts support similar differential architectures and low noise specifications.