LTC6400IUD-26#TRPBF

Overview

The LTC6400IUD-26#TRPBF is a high-speed differential amplifier designed for processing DC to 300MHz signals. It features a fixed gain of 26dB (20V/V) and a 1.9GHz -3dB bandwidth. The device operates on a single supply voltage ranging from 2.85V to 3.5V, drawing 85mA of current. It provides differential inputs with 50Ω impedance and adjustable output common mode voltage between 1V and 1.6V. Packaged in a compact 16-lead 3mm × 3mm QFN, it supports both DC and AC coupling.

Feature Summary

• Differential ADC driver optimized for low noise and low distortion performance
• Fixed internal gain of 20V/V with independent output common mode control
• Direct drive capability for high-resolution analog-to-digital converters
• Integrated low-pass filtering at the +OUTF and -OUTF pins

Applications

• Differential ADC Driver
• Differential Driver/Receiver
• Single Ended to Differential Conversion
• IF Sampling Receivers
• SAW Filter Interfacing

Procurement Notes

Verify that the specific suffix #TRPBF corresponds to the tape and reel packaging format required for automated assembly processes. Confirm the industrial temperature grade (-40°C to 85°C) aligns with environmental specifications. Ensure compatibility with lead-free manufacturing standards as indicated by the PBF designation. Cross-reference the manufacturer's latest documentation for any updates regarding pinout or electrical characteristics prior to final design implementation.

Selection Notes

Select this component when a fixed 26dB gain is required for driving 12-bit to 16-bit ADCs directly. Choose the I-grade variant for operation across the full industrial temperature range of -40°C to 85°C. Consider the 50Ω input impedance for direct interfacing with standard RF sources without additional matching networks. Evaluate power consumption constraints against the 85mA typical supply current requirement.

Part Context

This part belongs to the LTC6400 family of high-speed differential amplifiers. It shares pin compatibility with the lower-power LTC6401 series but offers higher output drive capability. The device serves as a general-purpose broadband gain block suitable for intermediate frequency applications. It replaces traditional solutions involving IF gain blocks and transformers, thereby reducing board space and system complexity.

Replacement Considerations

The LTC6400CUD-26#TRPBF is available as a commercial grade alternative with a restricted operating temperature range of 0°C to 70°C. Designers requiring wider temperature tolerance must ensure the I-grade specification is maintained. No other direct functional substitutes are documented within the provided datasheet scope.