ADCLK905

RECOMMENDED FOR NEW DESIGNS

Ultrafast SiGe ECL Clock/Data Buffers

Data Sheet (Rev. B) Product Selection Table

Part Models: 3
1ku List Price: Starting From $5.51

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Overview

95 ps propagation delay
7.5 GHz toggle rate
60 ps typical output rise/fall
60 fs random jitter (RJ)
On-chip terminations at both input pins
Extended industrial temperature range: −40°C to +125°C
2.5 V to 3.3 V power supply (V_CC − V_EE)

The ADCLK905 (one input, one output), ADCLK907 (dual one input, one output), and ADCLK925 (one input, two outputs) are ultrafast clock/data buffers fabricated on the Analog Devices, Inc., proprietary XFCB3 silicon germanium (SiGe) bipolar process.

The ADCLK905/ADCLK907/ADCLK925 feature full-swing emitter coupled logic (ECL) output drivers. For PECL (positive ECL) operation, bias V_CC to the positive supply and V_EE to ground. For NECL (negative ECL) operation, bias V_CC to ground and V_EE to the negative supply.

The buffers offer 95 ps propagation delay, 7.5 GHz toggle rate, 10 Gbps data rate, and 60 fs random jitter (RJ).

The inputs have center tapped, 100 Ω, on-chip termination resistors. A V_REFpin is available for biasing ac-coupled inputs.

The ECL output stages are designed to directly drive 800 mV each side into 50 Ω terminated to V_CC − 2 V for a total differential output swing of 1.6 V.

The ADCLK905/ADCLK907/ADCLK925 are available in 16-lead LFCSP packages.

Applications

Clock and data signal restoration and level shifting
Automated test equipment (ATE)
High speed instrumentation
High speed line receivers
Threshold detection
Converter clocking

Part Models: 3
1ku List Price: Starting From $5.51

Documentation

Frequently Asked Question 1

FAQ 09/05/2025

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
ADCLK905BCPZ-R2	16-Lead LFCSP (3mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADCLK905BCPZ-R7	16-Lead LFCSP (3mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADCLK905BCPZ-WP	16-Lead LFCSP (3mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Feb 13, 2014 - 14_0038 Conversion of 3x3mm body Size LFCSP Package Outlines from Punch to Sawn and Transfer of Assembly Site to Amkor Philippines.
		PCN14_0038_Form Material_Report Detailed Change Description Package Outline Drawing Qualification Report Summary
ADCLK905BCPZ-R2	PRODUCTION
ADCLK905BCPZ-R7	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Tools & Simulations

ADIsimCLK Design and Evaluation Software

ADIsimCLK is the design tool developed specifically for Analog Devices' range of ultra-low jitter clock distribution and clock generation products. Whether your application is in wireless infrastructure, instrumentation, networking, broadband, ATE or other areas demanding predictable clock performance, ADIsimCLK will enable you to rapidly develop, evaluate and optimize your design.

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ADCLK905 IBIS Model 1

ADCLK905 IBIS Model

Evaluation Kits

ADCLK905 Evaluation Board

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Product Details

The ADCLK905/ADCLK907/ADCLK925 clock buffers are very fast, making it important to use adequate high bandwidth instruments to evaluate them. To that end, the evaluation board is fabricated using a high quality dielectric material between layers to maintain high signal integrity. Transmission line paths are kept as close to 50 Ω as possible.