Datasheet

ADG436
Rev. B | Page 11 of 12
APPLICATIONS INFORMATION
ADG436 SUPPLY VOLTAGES
The ADG436 can operate from a dual or single supply. V
SS
should be connected to GND when operating with a single
supply. When using a dual supply, the ADG436 can also operate
with unbalanced supplies, for example V
DD
= 20 V and V
SS
=
−5 V. The only restrictions are that V
DD
to GND must not exceed
30 V, V
SS
to GND must not drop below −30 V, and V
DD
to V
SS
must not exceed +44 V. It is important to remember that the
ADG436 supply voltage directly affects the input signal range,
the switch on resistance and the switching times of the part. The
effects of the power supplies on these characteristics can be
clearly seen from the Typical Performance Characteristics
curves.
POWER-SUPPLY SEQUENCING
When using CMOS devices, care must be taken to ensure
correct power-supply sequencing. Incorrect power-supply
sequencing can result in the device being subjected to stresses
beyond those listed in the Absolute Maximum Ratings. Always
sequence V
DD
on first followed by V
SS
and the logic signals. An
external signal can then be safely presented to the source or
drain of the switch.