LTC6406CUD#PBF

Overview

The LTC6406CUD#PBF is a low noise, fully differential amplifier optimized for 3V single supply operation. It features a 3GHz gain-bandwidth product and an 800MHz closed-loop bandwidth at unity gain. The device draws 18mA of supply current and supports a 2.7V to 3.5V voltage range. Input common mode range is rail-to-rail, while output common mode voltage is adjustable via the VOCM pin. It operates within a specified temperature range of 0°C to 70°C and is housed in a 16-lead 3mm × 3mm QFN package.

Feature Summary

• Rail-to-rail differential input capability with independently adjustable output common mode voltage
• Low power hardware shutdown feature reducing consumption to 300μA
• High linearity performance suitable for driving high-resolution ADCs
• Compact leadless QFN package design for space-constrained applications

Applications

• Differential input ADC driver
• Single-ended to differential conversion
• Level-shifting ground-referenced signals
• Level-shifting VCC-referenced signals
• High linearity direct conversion receivers

Procurement Notes

Verify the C suffix indicates a commercial temperature grade (0°C to 70°C) rather than industrial (-40°C to 85°C). Confirm the #PBF designation ensures lead-free compliance. Check for availability as the component may be subject to limited supply or end-of-life status depending on the manufacturer's current production schedule.

Selection Notes

Select this part when a low noise, fully differential amplifier is required for 3V single-supply systems. Ensure the application fits the 0°C to 70°C commercial temperature range; otherwise, consider the I-grade variant. Verify that the 18mA quiescent current aligns with system power budgets and that the 3mm × 3mm QFN footprint is compatible with the PCB layout constraints.

Part Context

This component belongs to the LTC6406 family of wideband, low-noise differential amplifiers from Analog Devices. It is designed specifically to drive single-supply, differential-input analog-to-digital converters. The family includes variants with different temperature grades and package options, such as MSOP, to accommodate various design requirements.

Replacement Considerations

Consult official documentation for specific substitute part numbers. No public confirmed substitutes are listed in the provided source material.