GENERAL DESCRIPTION

The ADG465 is a single channel protector in an SOT-23 package. The channel protector is placed in series with the signal path, and will protect sensitive components from voltage transience in the signal path whether or not the power supplies are present. Because the channel protection works regardless of the presence of the supplies, the channel protectors are ideal for use in applications where correct power sequencing cannot always be guaranteed to protect analog inputs (e.g., hot-insertion rack systems). This is discussed further, and some example circuits are given, in the Applications section of this data sheet.

FEATURES

Fault and Overvoltage Protection up to 640␣ V

Signal Paths Open Circuit with Power Off

Signal Path Resistance of RON with Power On

44 V Supply Maximum Ratings

Low On Resistance 80 Ω Typ

1 nA Max Path Current Leakage @ +25°C

Low Power Dissipation 0.8␣ mW Typ

Latchup-Proof Construction

APPLICATIONS

ATE Equipment

Sensitive Measurement Equipment

Hot-Insertion Rack Systems

ADC Input Channel Protection