LT6402IUD-12#PBF

Overview

The LT6402IUD-12#PBF 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 unfiltered outputs (+OUT, -OUT) and an additional pair of filtered outputs (+OUTFILTERED, -OUTFILTERED) that incorporate a built-in 75MHz differential low-pass filter. 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 filtering at dedicated output pins
• Adjustable output common mode voltage control via VOCM pin
• Supports both single-ended and differential input/output topologies
• 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
• Differential to Single Ended Conversion
• Level Shifting in data acquisition systems

Procurement Notes

Verify the specific suffix '#PBF' indicates lead-free finish and RoHS compliance when sourcing. Confirm the 'I' grade designation ensures guaranteed performance across the full industrial temperature range of –40°C to 85°C. Ensure the QFN-16 package dimensions match the PCB footprint design constraints before finalizing procurement orders.

Selection Notes

Select this component when driving high-speed 12-bit or 14-bit ADCs requiring minimal external filtering. Choose the IUD-12 variant for industrial temperature operation. Consider the filtered outputs if system-level anti-aliasing is required without adding discrete components. Verify power supply stability as the device requires precise 5V regulation for optimal linearity.

Part Context

This part belongs to the LT6402-12 series, which consists of low-noise differential amplifiers optimized for high-frequency signal processing. The LT6402IUD-12#PBF specifically denotes the industrial temperature grade version housed in a compact 16-lead 3mm x 3mm QFN package. It is manufactured by Analog Devices Inc., continuing the legacy of Linear Technology's precision analog solutions.

Replacement Considerations

LT6402CUD-12#PBF: Commercial grade version; limited to 0°C to 70°C operating range.