AD5280BRU20 Analog Devices Inc, AD5280BRU20 Datasheet - Page 19

• Manufacturer Part Number: AD5280BRU20
• Description: IC DGTL POT 20K 256POS 14-TSSOP
• Manufacturer: Analog Devices Inc

Specifications of AD5280BRU20

• Rohs Status: RoHS non-compliant
• Taps: 256
• Resistance (ohms): 20K
• Number Of Circuits: 1
• Temperature Coefficient: 30 ppm/°C Typical
• Memory Type: Volatile
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 4.5 V ~ 16.5 V, ±4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 14-TSSOP
• Resistance In Ohms: 20K

LAYOUT AND POWER SUPPLY BYPASSING
It is a good practice to design a layout with compact, minimum
lead lengths. The leads to the input should be as direct as possible
with a minimum conductor length. Ground paths should have
low resistance and low inductance.
Similarly, it is also a good practice to bypass the power supplies
with quality capacitors for optimum stability. Supply leads to
the device should be bypassed with 0.01 μF to 0.1 μF disc or
chip ceramic capacitors. Low ESR 1 μF to 10 μF tantalum or
electrolytic capacitors should also be applied at the supplies to
minimize any transient disturbance and filter low frequency
ripple (see Figure 54). Notice that the digital ground should also
be joined remotely to the analog ground at one point to
minimize digital ground bounce.
Rev. C | Page 19 of 28
V
V
DD
SS
10µF
10µF
C3
C4
Figure 54. Power Supply Bypassing
+
+
0.1µF
0.1µF
C1
C2
AD5280/AD5282
V
AD5280/
V
AD5282
DD
SS
GND