Signal Line Protection

Automotive contact monitor and level shifters such as the MAX13036 monitor and debounce eight remote mechanical switches while consuming a meager 17 µA (typical) supply current. The low supply current is a result of innovative ultralow current design techniques, as well as the use of programmable polling periods. The device's low current consumption combined with a wide input-voltage range (±45 V), high ±8 kV ESD protection on switch inputs, and adjustable wetting current make the MAX13036 ideal for applications within harsh automotive environments, such as body computers, window lifters, electric sunroofs, and other electronic control units (ECUs).

Analog Devices offers ESD-protection diode arrays with low input capacitance, making these devices ideal for high speed data lines. Selected devices integrate transient voltage suppressors (TVSs) suitable for high speed operation and general-signal ESD protection.

Signal line protector ICs protect bipolar or unipolar analog inputs from overvoltage conditions. These protectors are inserted in line with the signal and clamp to either the positive or negative input rail in the case of an overvoltage fault.