Product Description

The CM1224 family of diode arrays has been designed to provide ESD protection for electronic components or subsystems requiring minimal capacitive loading. These devices are ideal for protecting systems with high data and clock rates or for circuits requiring low capacitive loading. Each ESD channel consists of a pair of diodes in series which steer the positive or negative ESD current pulse to either the positive (VP) or negative (VN) supply rail.

Features

• Two or Four Channels of ESD Protection

• Provides ESD Protection to IEC61000−4−2 Level 4 ±8 kV Contact Discharge

• Low Channel Input Capacitance of 0.7 pF Typical

• Minimal Capacitance Change with Temperature and Voltage

• Channel Input Capacitance Matching of 0.02 pF Typical is Ideal for Differential Dignals

• Zener Diode Protects Supply Rail and Eliminates the Need for External By−pass Capacitors

• Low Clamping Voltage (VCLAMP) at 10 V

• Low Dynamic Resistance (RDYN) at 1.08

• Each I/O Pin Can Withstand Over 1000 ESD Strikes

• Available in SOT and MSOP Lead−free Packages

• These Devices are Pb−Free and are RoHS Compliant

Applications

• USB2.0 Ports at 480 Mbps in desktop PCs, Notebooks and Peripherals

• IEEE1394 Firewire® Ports at 400 Mbps / 800 Mbps

• DVI Ports, HDMI Ports in Notebooks, Set Top Boxes, Digital TVs, LCD Displays

• Serial ATA Ports in Desktop PCs and Hard Disk Drives

• PCI Express Ports

• General Purpose High−speed Data Line ESD Protection