ESD PROTECTION

The LMH6574 is protected against electrostatic discharge

(ESD) on all pins. The LMH6574 will survive 2000V Human

Body model and 200V Machine model events. Under normal

operation the ESD diodes have no effect on circuit perfor-

mance. There are occasions, however, when the ESD di-

odes will be evident. If the LMH6574 is driven by a large

signal while the device is powered down the ESD diodes will

conduct . The current that flows through the ESD diodes will

either exit the chip through the supply pins or will flow

through the device, hence it is possible to power up a chip

with a large signal applied to the input pins. Using the

shutdown mode is one way to conserve power and still

prevent unexpected operation.

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