LTC6405IUD#PBF

Overview

The LTC6405IUD#PBF is a low noise, low distortion fully differential amplifier optimized for 5V single supply operation. It features a rail-to-rail input common mode range and an adjustable output common mode voltage via the VOCM pin. The device offers a 2.7GHz gain-bandwidth product and unity gain stability with an 800MHz -3dB bandwidth. It draws 18mA at 5V and includes a hardware shutdown feature reducing current to 400µA. Available in a 16-lead 3mm × 3mm QFN package, it operates from –40°C to 85°C.

Feature Summary

• Rail-to-rail differential input capability
• Adjustable output common mode voltage
• Low power shutdown functionality
• Fully differential input and output architecture

Applications

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

Procurement Notes

Verify the specific ordering suffix #PBF indicates lead-free tray packaging when sourcing. Confirm the I grade designation corresponds to the industrial temperature range of –40°C to 85°C. Ensure the QFN package variant matches the required PCB footprint dimensions. Cross-reference the manufacturer's latest discontinuance notifications to confirm active production status before finalizing procurement plans.

Selection Notes

Select this component for applications requiring high linearity and low noise in single-supply systems. The adjustable VOCM pin allows flexible level shifting for various ADC input requirements. Consider the 18mA supply current and thermal dissipation in the compact QFN package. Evaluate the need for the hardware shutdown feature if power management during idle states is critical for the system design.

Part Context

This part belongs to the LTC6405 family of wideband differential amplifiers designed by Analog Devices. It is specifically engineered to drive differential input analog-to-digital converters with high accuracy. The IUD#PBF designation identifies the industrial temperature grade version housed in the 16-lead plastic QFN package.

Replacement Considerations

Consult official documentation for qualified substitutes within the same product family or series.