LT6402CUD-12#TRPBF

Overview

The LT6402CUD-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 an integrated 75MHz differential low-pass filter with additional filtered outputs (+OUTFILTERED, –OUTFILTERED). It provides adjustable output common mode voltage via the VOCM pin, eliminating the need for external transformers or AC-coupling capacitors in many configurations.

Feature Summary

• Integrated 75MHz differential low-pass filter with dedicated filtered outputs
• Adjustable output common mode voltage via high-impedance VOCM pin
• Supports both single-ended and differential input/output configurations
• Minimal support circuitry requirements for direct ADC interfacing

Applications

• Differential ADC driver for imaging and communications systems
• IF sampling receivers and SAW filter interfacing/buffering
• Single-ended to differential conversion circuits
• General-purpose differential gain blocks requiring minimal external components

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the 'C' grade designation meets the required operating temperature range for your application environment. Ensure the 16-lead QFN package footprint matches your PCB layout constraints. Cross-reference the manufacturer part number with authorized distributors to ensure authenticity and traceability.

Selection Notes

Select this component when driving high-speed 12-bit or 14-bit ADCs directly without external filtering. Choose the LT6402-12 variant specifically over other gain options if a fixed 12dB amplification is required. Consider the built-in filtering capability to reduce bill of materials complexity. Evaluate the 300MHz bandwidth against your signal frequency requirements to ensure adequate performance margins.

Part Context

This component belongs to the LT6402 family of low distortion differential amplifiers. The '-12' suffix denotes the specific fixed gain configuration of 12dB. Analog Devices manufactures this series to provide ease of use with minimal support circuitry. The device is optimized for communications transceiver applications requiring high linearity and low noise performance.

Replacement Considerations

LT6402IUD-12#TRPBF offers the same electrical specifications but is guaranteed to meet performance across the full -40°C to 85°C temperature range, whereas the C-grade is not QA sampled at these extremes.