CM1234_14 Datasheet, PDF (7/9 Pages) ON Semiconductor – ESD Clamp Array for High Speed Data Line Protection

CM1234
CM1234 Application and Guidelines
As a general rule, the CM1234 ESD protection array should be located as close as possible to the point of entry of expected
electrostatic discharges with minimum PCB trace lengths to the ground planes and between the signal input and the ESD device
to minimize stray series inductance.
Figure 8. Application of Positive ESD Pulse
Between Input Channel and Ground
Additional Information
See also ON Semiconductor Application Note “Design
Considerations for ESD Protection,” in the Applications
section at www.onsemi.com.
Figure 9. Typical PCB Layout
http://onsemi.com
7