Question Are these parts pin-pin compatible with existing parts? Answer Yes, the ADG5208F/ADG5209F are pin-for-pin compatible with the ADG5208/ADG5209
and ADG1208/ADG1209. They are drop in replacements…
Question Can I leave the exposed pad floating? Answer The exposed pad is connected to the substrate which, in this case, is the most
negative voltage, Vss. The exposed pad should be connected to Vss…
Question Can other channels really continue to operate as normal when another channel is
in fault? Answer Yes, one of the key benefits of the ADG5248F is that the drain leakage is still
very low (…
Q
Can you explain Power-Off protection and its benefits?
A
The ADG5248F will provide protection to downstream circuitry against over-voltage conditions when it’s unpowered. This is very important…
Question How do the fault diagnostics work? Answer The voltages on the input channels of the ADG5248F are continuously monitored
and the state of the switch is indicated by an active low digital output…
Question What are the system benefits of fault diagnostics? Answer For systems that are sensitive during a start-up sequence, the active low
operation of the fault flags allow the system to ensure that…
Question What happens to the output during an over-voltage event? Answer The drain output will be clamped during an overvoltage fault condition. The
ADG5248F, ADG5249F, and ADG5243F have secondary supplies…
Question What is the recommended supply sequence? Answer The Golden sequence for power up is: Ground, VDD, VSS, Digital Inputs. The
trench isolation and lack of logic supply pin (VL) means that it is…
Q
What will be the recovery time when switching from a channel in fault to a channel not in fault?
A
The timing will be the same as normal channel to channel switching; i.e. there is no additional…
Question What will be the recovery time when switching from a channel in fault to a
channel not in fault? Answer The timing will be the same as normal channel to channel switching; i.e. there
is no…