DA108S(2008) Datasheet - STMicroelectronics

Description
Array of 8 or 12 diodes configured by cells of 2 diodes, each cell being used to protect signal line from transient overvoltages by clamping action.
As maximum voltage of each diode is 18 V, maximum input voltage range between two I/Os is either 0 V to 18 V (REF1 = 0 V and REF2 = +18 V) or -9 V to +9 V (REF1 = -9 V and REF2 = +9 V)

FEATUREs
■ Array of 8 or 12 diodes
■ Low input capacitance
■ Suitable for digital line protection

Complies with following standards:
■ IEC 61000-4-2 Level 4
   – 15kV (air discharge)
   – 8kV (contact discharge)

APPLICATIONs
■ Protection of logic side of ISDN S-interface
■ Protection of I/O lines of microcontroller
■ Signal conditioning