AD5171EVAL Analog Devices Inc, AD5171EVAL Datasheet - Page 15

• Manufacturer Part Number: AD5171EVAL
• Description: BOARD EVAL FOR AD5171
• Manufacturer: Analog Devices Inc

Specifications of AD5171EVAL

• Main Purpose: Digital Potentiometer
• Utilized Ic / Part: AD5171
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Secondary Attributes: -
• Embedded: -
• Primary Attributes: -

TERMINAL VOLTAGE OPERATING RANGE
There are also ESD protection diodes between V
RDAC terminals; therefore, the V
voltage boundary conditions (see Figure 31). Supply signals
present on Terminal A, Terminal B, and Terminal W that
exceed V
and should be avoided.
DD
Figure 31. Maximum Terminal Voltages Set by V
are clamped by the internal forward-biased diodes
DD
of the AD5171 defines their
V
A
W
B
GND
DD
DD
and the
DD
Rev. D | Page 15 of 24
POWER-UP/POWER-DOWN SEQUENCES
Similarly, because of the ESD protection diodes, it is important
to power V
Terminal B, and Terminal W. Otherwise, the diode is forward-
biased such that V
the remainder of the users’ circuits. The ideal power-up sequence is
the following order: GND, V
The order of powering V
important as long as they are powered after V
should be powered down last.
DD
first before applying any voltages to Terminal A,
DD
is powered unintentionally and can affect
A
, V
DD
B
, V
, digital inputs, and V
W
, and the digital inputs is not
DD
. Similarly, V
AD5171
A
/V
B
/V
W
DD
.