LTC6404IUD-1#PBF

Overview

The LTC6404IUD-1#PBF is a fully differential input/output amplifier and driver optimized for single-supply operation. It features a closed-loop bandwidth of 600MHz, an input-referred voltage noise density of 1.5nV/√Hz, and a slew rate of 450V/μs. The device operates on supply voltages ranging from 2.7V to 5.25V with a typical active current consumption of 27.3mA. It includes a hardware shutdown feature that reduces current to approximately 250μA. The component is housed in a compact 16-lead QFN package.

Feature Summary

• Fully differential architecture with rail-to-rail output swing
• Integrated low-pass filter providing additional filtered outputs
• Adjustable output common mode voltage control
• Hardware shutdown capability for power reduction

Applications

• Driving high-resolution analog-to-digital converters
• Single-ended to differential conversion circuits
• Common mode level translation applications

Procurement Notes

Verify the specific temperature grade suffix (C, I, or H) matches the required operating range before procurement. Confirm the ordering suffix (#PBF vs #TRPBF) aligns with the desired tube or tape-and-reel packaging format. Ensure the design accounts for the exposed pad connection requirements specified in the datasheet thermal guidelines.

Selection Notes

Select this part when unity-gain stability is required for fully differential signal processing. The LTC6404-1 variant is distinct from the gain-stable -2 and -4 versions. Consider the integrated filtering option if out-of-band noise suppression is needed without external components. Verify that the 85°C industrial temperature rating meets the system environmental constraints.

Part Context

This component belongs to the LTC6404 family of AC precision amplifiers designed for driving state-of-the-art ADCs. The 'I' suffix denotes the industrial temperature grade (-40°C to 85°C). The '-1' designation indicates the unity-gain stable configuration within the family, distinguishing it from higher gain variants.

Replacement Considerations

LTC6404CUD-1#PBF

FAQ

What is the difference between the LTC6404-1 and other variants?

The LTC6404-1 is unity-gain stable, whereas the -2 and -4 variants are designed for closed-loop gains greater than or equal to 2V/V and 4V/V respectively.

Does the device include filtering capabilities?

Yes, the LTC6404 includes a built-in 88.5MHz differential single-pole low-pass filter with an additional pair of filtered outputs.