
Analog Devices
GENERAL DESCRIPTION
The ADG467 is an octal channel protector. The channel protector is placed in series with the signal path. The channel protector protects sensitive components from voltage transience in the signal path regardless if the power supplies are present or not. For this reason, the channel protectors are ideal for use in applications where correct power sequencing cannot always be guaranteed (for example, hot insertion rack systems) to protect analog inputs. This is described further, and some example circuits are given in the Applications Information section.
FEATURES
Fault and overvoltage protection up to ±40 V
Signal paths open circuit with power off
Signal path resistance of RON with power on
44 V supply maximum ratings
Low on resistance: 62 Ω typical
±1 nA maximum path current leakage @ +25°C
Low RON match (5 Ω maximum)
Low power dissipation 0.8 μW typical
Latch-up proof construction
APPLICATIONS
ATE equipment
Sensitive measurement equipment
Hot insertion rack systems