256-Position I
2
C Compatible
Dual, +15V, Digital Potentiometer
Evaluation Board User Manual
AD5282
For more details on connecters and jumpers around the opamp, refer to Figure 4.
2.5V Voltage Reference – ADR03
By connecting JP5, the voltage reference is connected to the A-terminal of channel-1 of the AD5282. You don’t need
to worry about applying VDD because it is hardwired from the same source that is powering the AD5282.
Power Mosfets – FDV301N
Q1
By connecting JP14, the wiper of channel-1 is connected to the gate of Q1. CP15 can be used to place a resistor
between the drain and pad D1. CP16 can be used to place a degenerative resistor between the source and GND.
Q2
By connecting JP15, the wiper of channel-2 is connected to the gate of Q2. CP17 can be used to place a resistor
between the drain and pad D2. CP18 can be used to place a degenerative resistor between the source and GND.
Rev B 11/03/03
5
