LTC6419HV#PBF

Overview

The LTC6419HV#PBF is a dual, very high-speed, low distortion differential amplifier and ADC driver manufactured by Analog Devices Inc. It features a 10GHz gain-bandwidth product and operates over an extended temperature range of –40°C to 125°C. The device accepts fully differential or single-ended inputs and provides fully differential outputs with adjustable common mode voltage. It draws 52mA per amplifier in active mode and includes independent shutdown pins for power reduction.

Feature Summary

• Dual channel architecture with independent shutdown control for each amplifier
• Input common mode range includes ground for DC-coupled single-ended to differential conversion
• External resistors allow configurable gain settings starting from a minimum of 1V/V
• Compact 20-lead LQFN package designed for space-constrained applications

Applications

• Broadband I/Q amplifiers
• Dual differential ADC drivers
• High-speed data-acquisition cards
• Automated test equipment
• Time domain reflectometry

Procurement Notes

Verify the specific HV suffix indicates the extended industrial temperature range of –40°C to 125°C compared to standard variants. Confirm the PBF designation ensures RoHS and WEEE compliance. Check that the 20-pin LQFN package dimensions match the PCB footprint requirements. Ensure supply voltages remain within the 2.7V to 5.25V operational limits during system design.

Selection Notes

Select this component when driving differential analog-to-digital converters requiring high linearity and wide bandwidth. The external feedback network allows precise tailoring of gain and frequency response. Consider the 52mA supply current per channel for power budgeting. The independent shutdown feature supports dynamic power management in multi-channel systems.

Part Context

This part belongs to the LTC6419 family of dual differential amplifiers. The HV variant specifically extends the guaranteed functional and performance temperature range to 125°C, distinguishing it from lower-grade versions limited to 85°C. It shares the same electrical characteristics and pinout as other members of the series but targets harsher environmental conditions.

Replacement Considerations

Public confirmed substitute part numbers: LTC6419IV#PBF.