LT6402IUD-12#TRPBF

Overview

The LT6402IUD-12#TRPBF is a low distortion, low noise differential amplifier and ADC driver designed for applications from DC to 300MHz. It features a fixed gain of 12dB (4V/V) and operates on a single 5V supply with a typical current consumption of 30mA. The device includes both unfiltered outputs (+OUT, -OUT) and built-in filtered outputs (+OUTFILTERED, -OUTFILTERED) with a 75MHz -3dB bandwidth. It utilizes a compact 16-lead 3mm x 3mm QFN package and supports an operating temperature range of -40°C to 85°C.

Feature Summary

• Integrated 75MHz differential low pass filter providing additional filtered outputs to reduce external filtering components.
• Adjustable output common mode voltage via the VOCM pin, eliminating the need for output transformers or AC-coupling capacitors in many applications.
• Low input-referred noise and high linearity suitable for driving high-speed 12-bit and 14-bit ADCs.
• Supports both single-ended and differential inputs with minimal required support circuitry.

Applications

• Differential ADC Driver for imaging and communications systems
• IF Sampling Receivers
• SAW Filter Interfacing and Buffering
• Single Ended to Differential Conversion
• Level Shifting

Procurement Notes

Verify that the specific suffix #TRPBF corresponds to the tape and reel packaging format as indicated in the ordering information table. Confirm the 'I' grade designation ensures guaranteed performance across the full specified industrial temperature range of -40°C to 85°C. Ensure compatibility with the 16-lead QFN footprint during PCB layout.

Selection Notes

Select this component when a fixed 12dB gain is required for high-speed signal conditioning. The integrated filtering simplifies designs targeting frequencies up to 75MHz at the filtered outputs. Consider the unfiltered outputs if operation beyond 75MHz is necessary, keeping in mind the 300MHz bandwidth limit. Verify that the 5V supply constraint aligns with the system power architecture.

Part Context

This part belongs to the LT6402-12 series, which consists of low noise differential amplifiers optimized for driving analog-to-digital converters. The 'I' suffix denotes the industrial temperature grade, while 'UD' specifies the 16-lead QFN package type. The '#TRPBF' suffix indicates the lead-free tape and reel packaging configuration.

Replacement Considerations

LT6402CUD-12#TRPBF