CM1234 Datasheet, PDF (8/13 Pages) California Micro Devices Corp – PicoGuard XSTM ESD Clamp Array For High Speed Data Line Protection

CM1234
SYMBOL PARAMETER
∆Zo Channel-to-Channel Impedance Match
(Differential)
CONDITIONS
T_R = 200ps
Z
CHANNEL
Individual Channel Characteristic Imped-
ance in Single-ended Connection
T_R = 200ps
∆Z_CHANNEL Channel-to-Channel Impedance Match
(Individual)
T_R = 200ps;
Note 1: All parameters specified at T_A = –40°C to +85°C unless otherwise noted.
MIN TYP MAX UNITS
2
%
50
Ω
2
%
Performance Information
Graphical Comparison and Test Setup
Figure 4 shows that the CM1234(PicoGuard XS ESD protector) lowers the peak voltage and clamping voltage by
45% across a wide range of loading conditions in comparison to a standard ESD protection device. Figure 5 also
indicates that the DUP/ASIC protected by the CM1235 dissipates less energy than a standard ESD protection
device. This data was derived using the test setups shown in Figure 6.
Figure 4. Normalized VPeak (8KV IEC-61000 4-2 ESD Contact Strike) vs. Loading (RDUP)*
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