LTC6432BIUF-15#PBF

Overview

The LTC6432BIUF-15#PBF is a B-grade differential gain block amplifier designed to drive high-resolution, high-speed ADCs. It operates from 100kHz to 1.4GHz with a fixed power gain of approximately 15.2dB. The device utilizes SiGe technology to achieve low 1/f noise and flat gain over the specified band. Key electrical characteristics include an OIP3 of 47dBm at 150MHz and a noise figure of 3.0dB at 240MHz. It requires a single 5V supply and features internally matched 100Ω differential inputs and outputs.

Feature Summary

• Ultra-high dynamic range differential architecture optimized for driving high-resolution, high-speed ADCs
• SiGe-based design providing low 1/f noise and operation down to 100kHz
• Internally managed impedance matching, temperature compensation, and bias control
• Unconditionally stable performance across the full operating frequency range

Applications

• Differential 1GHz bandwidth ADC driver
• Wideband test instrument amplifier
• Differential IF amplifier
• 50Ω/75Ω balanced IF amplifier

Procurement Notes

Verify the specific grade suffix within the part number to confirm performance guarantees. The 'B' designation indicates that while the device functions correctly, it does not carry the guaranteed OIP3 metrics associated with A-grade units. Ensure the ordering suffix matches the required packaging format, such as tube or tape and reel, before finalizing procurement documentation.

Selection Notes

Select this component when a fixed-gain differential amplifier is required for intermediate frequency stages or direct ADC interfacing. The internal 100Ω differential matching simplifies circuit design by reducing external component count. Consider the B-grade specification if strict linearity guarantees are not critical for the application budget.

Part Context

This component belongs to the LTC6432-15 family of ultra-high dynamic range amplifiers. It shares architectural similarities with the LTC6433-15 but provides differential signaling rather than single-ended output. The device is manufactured using Silicon Germanide (SiGe) processes to ensure superior low-frequency noise performance compared to traditional GaAs or GaN technologies.

Replacement Considerations

LTC6432AIUF-15#PBF