LTC6405IMS8E#PBF

Overview

The LTC6405IMS8E#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 gain-bandwidth product of 2.7GHz and a closed-loop bandwidth extending from DC to 800MHz. It draws 18mA at 5V with a hardware shutdown feature reducing consumption to 400µA. Operating over -40°C to 85°C, it is housed in an 8-lead MSOP package.

Feature Summary

• Rail-to-rail differential input capability
• Adjustable output common mode voltage
• Low power hardware shutdown mode

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 IMS8E suffix indicates the industrial temperature grade (-40°C to 85°C) compared to commercial variants. Confirm the #PBF designation ensures lead-free compliance. Check current distributor availability as stock levels fluctuate. Ensure the 8-lead MSOP package matches your PCB footprint requirements before finalizing procurement orders.

Selection Notes

Select this component when driving 12-bit to 16-bit single-supply differential ADCs requiring level shifting. The adjustable VOCM pin allows independent control of the output common mode. Consider the 2.7GHz GBW for high-frequency signal processing. Evaluate the 18mA supply current against system power constraints. Verify compatibility with 4.5V to 5.25V supply ranges.

Part Context

This part belongs to the LTC6405 family of wideband differential amplifiers designed for precision analog-to-digital converter interfaces. The IMS8E variant specifically denotes the industrial temperature range and surface-mount MSOP packaging. Analog Devices manufactures this series to provide high linearity and low noise performance for demanding RF and communication applications.

Replacement Considerations

LTC6405CUD#PBF (Commercial temp, QFN)

FAQ

How is the output common mode voltage controlled?

The output common mode voltage is independently adjustable by applying a voltage to the VOCM pin. If left open, an internal divider sets it to 2.5V with a 5V supply.

What is the function of the SHDN pin?

Connecting the SHDN pin to V– places the device in a low-power shutdown state with Hi-Z outputs, reducing supply current to approximately 400µA.