LTC6405CMS8E#TRPBF

Overview

The LTC6405CMS8E#TRPBF 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 gain-bandwidth product of 2.7GHz and a closed-loop bandwidth extending from DC to 800MHz at unity gain. It draws 18mA during normal operation and includes a hardware shutdown feature reducing current to 400µA. The component operates within a supply voltage range of 4.5V to 5.25V and is housed in an 8-lead MSOP package.

Feature Summary

• Rail-to-rail differential input capability with independently adjustable output common mode voltage
• Low noise performance with 1.6nV/√Hz input referred noise density
• Hardware shutdown function for significant power reduction
• High linearity suitable for driving high-resolution ADCs

Applications

• Differential input ADC driver for 12-bit to 16-bit converters
• Single-ended to differential conversion with level shifting
• Level-shifting ground-referenced signals
• Level-shifting VCC-referenced signals
• High-linearity direct conversion receivers

Procurement Notes

Verify that the ordering suffix #TRPBF corresponds to the tape and reel packaging format rather than tube packaging. Confirm the 'E' designation indicates lead-free finish compliance. Ensure the specific temperature grade matches application requirements, as the 'C' suffix denotes commercial range (0°C to 70°C). Cross-reference the manufacturer part number against official Analog Devices documentation to confirm availability and exact specifications.

Selection Notes

Select this component when driving differential input ADCs requiring wide common mode range and low noise. The 8-lead MSOP package is suitable for space-constrained designs compared to the QFN option. Consider the 2.7GHz gain-bandwidth product for high-frequency signal processing. Evaluate the shutdown feature if power management during idle states is critical. Verify that the 5V single-supply operation aligns with system power rails.

Part Context

The LTC6405 series comprises fully differential amplifiers designed for high-speed data acquisition systems. The CMS8E variant specifically utilizes the 8-lead plastic MSOP package. This family is engineered to provide accurate output phase balancing and even-order harmonic cancellation. It serves as a bridge between single-ended sources and differential analog-to-digital converters in communication and instrumentation applications.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.