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Analog Devices LTC6957IDD-1#TRPBF — Clock & Timing ICs

LTC6957IDD-1#TRPBF Analog Devices Clock Fanout Buffer

MPNLTC6957IDD-1#TRPBF
End of Life

Analog Devices LTC6957IDD-1#TRPBF, Fanout Buffer (Distribution), 1:2 ratio, LVPECL output, 300 MHz max, 3.15V–3.45V supply, -40°C to 85°C, 12-WFDFN exposed pad, Tape & Reel.

$10.82Ref. price · indicative, final on quote
Analog Devices LTC6957IDD-1#TRPBF datasheet (PDF)
Packaging12-WFDFN Exposed Pad
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LTC6957IDD-1#TRPBF specifications
ParameterValue
TypeFanout Buffer (Distribution)
MountingSurface Mount
Supply voltage3.15V ~ 3.45V
Frequency - max300 MHz
Operating temperature-40°C ~ 85°C
InputCML, CMOS, LVDS, LVPECL
OutputLVPECL
PackageTape & Reel (TR); Cut Tape (CT)
Case12-WFDFN Exposed Pad
Number of circuits1
Ratio - Input:Output1:2
Differential - Input:OutputYes/Yes

Product details

300 MHz LVPECL fanout buffer with multi-protocol input

The LTC6957IDD-1#TRPBF is a single-channel, 1:2 fanout buffer from Analog Devices that accepts CML, CMOS, LVDS, or LVPECL inputs and delivers a LVPECL output at up to 300 MHz. This means one clock source can drive two downstream loads without degrading edge rates or adding jitter — a common need in ADC clock trees, FPGA reference distribution, and backplane timing.

Supply rail and temperature grade for industrial environments

Operates from a 3.15V to 3.45V supply — a tight tolerance that suits a regulated 3.3V rail with ±5% margin.

Package and mounting for high-speed layout

The Tape & Reel variant (2,500 pieces per reel) is feeder-ready for volume assembly; Cut Tape is also available for prototype builds.

Frequently asked questions

What input logic does LTC6957IDD-1 accept?

It accepts CML, CMOS, LVDS, and LVPECL input signals. This multi-protocol input eliminates the need for level translators when interfacing with different clock sources.

What is the output type of LTC6957IDD-1?

The output is LVPECL. The part provides a 1:2 fanout, so a single input drives two LVPECL outputs.

Can LTC6957IDD-1 work with a 3.3V supply?

Yes. The supply range is 3.15V to 3.45V, which comfortably covers a nominal 3.3V rail with typical ±5% tolerance.

Is LTC6957IDD-1#TRPBF RoHS compliant?

Yes, it is ROHS3 compliant.