LTC6957IMS-3#TRPBF

Clock Buffers, Drivers Overview

The LTC6957IMS-3#TRPBF is a low phase noise, dual-output AC signal buffer and driver from Analog Devices. It features CMOS logic outputs with in-phase configuration. The device operates on a 3.15V to 3.45V supply and supports input frequencies up to 300 MHz. It accepts single-ended or differential sine wave inputs (≤2VP-P) or any logic level. Key electrical parameters include a typical propagation delay of 0.95 ns, output skew of 5 ps, and additive jitter of 146 fs RMS at 300 MHz. Packaged in a 12-lead MSOP, it is designed for minimal noise addition during signal distribution.

Clock Buffers, Drivers Feature Summary

• Dual CMOS Logic Outputs: Provides two in-phase CMOS outputs suitable for standard digital interfaces.
• Low Phase Noise Performance: Additive jitter is specified at 146 fs RMS (10Hz to 150MHz offset) at 300 MHz.
• High Frequency Operation: Supports input signal frequencies up to 300 MHz with selectable bandwidth filtering.
• Flexible Input Compatibility: Accepts sine waves or logic levels (≤2VP-P) with internal self-biasing.

Clock Buffers, Drivers Applications

• System reference frequency distribution
• High-speed ADC, DAC, and DDS clock drivers
• Military and secure radio systems
• Low noise timing triggers
• Broadband wireless transceivers

Clock Buffers, Drivers Procurement Notes

Verify the #TRPBF suffix indicates Tape & Reel packaging when sourcing. Confirm the IMS suffix corresponds to the industrial temperature range (-40°C to 85°C). Ensure the specific -3 variant matches the required in-phase CMOS output configuration for the design.

Clock Buffers, Drivers Selection Notes

Select this model over other family members based on the requirement for in-phase CMOS outputs; alternatives like the -1 or -2 provide LVPECL or LVDS respectively. Consider the DFN package option if board space is constrained, as the MSOP offers higher thermal resistance. Verify that the 3.3V nominal supply voltage aligns with the 3.15V–3.45V operating range.

Clock Buffers, Drivers Part Context

This component belongs to the LTC6957 family of low phase noise buffers. The IMS-3 designation specifically identifies the Industrial grade version in a 12-lead MSOP package with in-phase CMOS outputs. It shares the same core amplifier architecture as the H-grade and other logic variants within the series.

Clock Buffers, Drivers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Designers should consult Analog Devices marketing for cross-reference options.