CM1214 Datasheet, PDF (4/10 Pages) List of Unclassifed Manufacturers – 1 and 2 Channel PicoGuardTM AC Signal ESD Protector

PRELIMINARY
CM1214
Performance Information
Typical Capacitance Characteristics vs. Voltage
Figure 1 illustrates how the loading capacitance
remains mainly flat across the voltage range from 0V to
5V, the voltage between CH pins.
Typical Voltage-Current (VI) Characteristics (high
current, pulse condition)
Figure 3 shows how the CM1214 experiences a sym-
metrical I/V curve, without any snapback or trigger volt-
age. The curve shows only one polarity.
Capacitance vs. Voltage (measured at 1MHz)
1 .5
1 .4
1 .3
1 .2
1 .1
1
0 .9
0 .8
0 .7
0 .6
0 .5
0
1
2
3
4
5
Voltage [V]
Figure 1. CM1214 Capacitance vs. Voltage
Typical Voltage Current (VI) Characteristics (low
current)
Figure 2 shows how the CM1214 experiences a sym-
metrical I/V curve, without any snapback or trigger volt-
age. It gradually starts to turn on at about 6V and
clamps above 7V.
2
1.5
1
0.5
0
0
2
4
6
8
10
12
Voltage [V]
Figure 3. CM1214 VI Characteristics,
Low Current, Pulse (clamping) Condition
10
9
8
7
6
5
4
3
2
1
0
0
1
2
3
4
5
6
7
8
Voltage [V]
Figure 2. CM1214 VI Characteristics, Low Current
© 2005 California Micro Devices Corp. All rights reserved.
4 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ● Tel: [phone] ● Fax: [phone] ● www.calmicro.com 03/25/05