CM1209
Performance Information
10
Slope = I/Z
POS
8
Cin (pF)
6
Current [I]
4
Slope = I/Z
NEG
V
ZBD
2
0
0
1
2
Vin
3
4
5
Voltage [V]
Figure 2.
IV Curve for CM1209
Figure 1.
Typical Variation of Channel Input
Capacitance (C
IN
) vs. Channel Input Voltage (V
IN
)
(VP = 5V via 10K resistor, VN = 0V)
Application Information
3
CM1209-06
1 24 5 6 8
7
0.22µF*
I/O Port
Buffers
Expansion
Connector
Typical ESD Protection
* Optional capacitor should be placed as close as
possible to the V
P
pin on all CM1209 devices.
Refer to ’Design Considerations’ text.
Figure 3. Application Example Using the CM1209-06 for I/O Port Protection
© 2004 California Micro Devices Corp. All rights reserved.
01/09/04
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
L
Tel: 408.263.3214
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Fax: 408.263.7846
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www.calmicro.com
5
CALMIRCO [ CALIFORNIA MICRO DEVICES CORP ]
