PRELIMINARY
CM1215
1-, 2- and 4-Channel Low Capacitance ESD Arrays
Features
Product Description
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1, 2, and 4 channels of ESD protection
The CM1215 family of diode arrays has been designed
to provide ESD protection for electronic components or
sub-systems 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 neg-
ative ESD current pulse to either the positive (VP) or
negative (VN) supply rail. The CM1215 will protect
against ESD pulses up to +15kV per the IEC 61000-4-2
standard.
Provides +15 kV ESD protection on each channel
per the IEC 61000-4-2 ESD requirements
Channel loading capacitance of 1.6 pF typical
Channel I/O to GND capacitance difference of
0.04pF typical
Mutual capacitance of 0.13pF typical
Minimal capacitance change with temperature and
voltage
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Each I/O pin can withstand over 1000 ESD strikes
SOT packages
Lead-free versions available
This device is particularly well-suited for protecting sys-
tems using high-speed ports such as USB2.0,
IEEE1394 (Firewire®, iLink™), Serial ATA, DVI, HDMI
and corresponding ports in removable storage, digital
camcorders, DVD-RW drives and other applications
where extremely low loading capacitance with ESD
protection are required in a small package footprint.
Applications
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IEEE1394 Firewire® ports at 400Mbps / 800Mbps
DVI ports, HDMI ports in notebooks, set top boxes,
digital TVs, LCD displays
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Serial ATA ports in desktop PCs and hard disk
drives
PCI Express ports
General purpose high-speed data line ESD protec-
tion
The CM1215 family of devices is available with
optional lead-free finishing.
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Simplified Electrical Schematic
CH4
V
CH3
V
V
P
P
P
CH1
CH1
CH2
V
V
N
N
CH1
CH2
V
N
CM1215-01ST/SO
CM1215-02ST/SO
CM1215-02SS/SR
CM1215-04ST/SO
© 2005 California Micro Devices Corp. All rights reserved.
06/30/05 430 N. McCarthy Blvd., Milpitas, CA 95035-5112
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Tel: 408.263.3214
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Fax: 408.263.7846
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www.calmicro.com
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