LTC6404HUD-1#PBF

Overview

The LTC6404HUD-1#PBF is a fully differential input/output amplifier optimized for single-supply operation. It features a closed-loop bandwidth of 600MHz and a slew rate of 450V/μs. The device operates on supply voltages ranging from 2.7V to 5.25V, drawing approximately 27.3mA in active mode. It provides an input-referred voltage noise density of 1.5nV/√Hz and includes a hardware shutdown feature reducing current consumption to 250μA. The component is housed in a compact 16-pin QFN package.

Feature Summary

• Fully differential input and output architecture with rail-to-rail output swing capability
• Integrated 88.5MHz differential low-pass filter providing filtered outputs alongside standard unfiltered signals
• Input range extends to ground while maintaining high precision and low distortion performance
• Adjustable output common mode voltage allowing flexible interface compatibility

Applications

• Driving analog-to-digital converters (ADCs) directly
• Single-ended to differential conversion and amplification
• Common mode level translation in signal processing chains

Procurement Notes

Verify the specific temperature grade suffix 'H' corresponds to the required industrial operating range of -40°C to 125°C. Confirm that the '#PBF' designation indicates lead-free finish compliance. Ensure the ordering information matches the exact '-1' variant for unity-gain stability requirements before finalizing procurement.

Selection Notes

Select this variant when unity-gain stability is required for the application circuit. Compare against -2 and -4 variants if higher closed-loop gains are necessary for the design. Verify that the 600MHz bandwidth and 1.5nV/√Hz noise specifications meet the system's signal integrity requirements for high-speed data acquisition.

Part Context

This component belongs to the LTC6404 family of AC precision amplifiers designed for driving state-of-the-art ADCs. The family includes variants optimized for different closed-loop gains, all sharing the same fully differential topology and low-noise characteristics within a compact QFN package suitable for space-constrained designs.

Replacement Considerations

Public confirmed substitute part numbers: LTC6404IUD-1#PBF, LTC6404CUD-1#PBF.