AD5165BUJZ100-R2 Analog Devices Inc, AD5165BUJZ100-R2 Datasheet - Page 15

• Manufacturer Part Number: AD5165BUJZ100-R2
• Description: IC DGTL POT 100K LP TSOT23-8
• Manufacturer: Analog Devices Inc

Specifications of AD5165BUJZ100-R2

• Taps: 256
• Resistance (ohms): 100K
• Number Of Circuits: 1
• Temperature Coefficient: 35 ppm/°C Typical
• Memory Type: Volatile
• Interface: SPI, 3-Wire Serial
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: TSOT-23-8, TSOT-8
• Resistance In Ohms: 100K
• End To End Resistance: 100kohm
• Track Taper: Linear
• No. Of Steps: 256
• Resistance Tolerance: ± 20%
• Supply Voltage Range: 2.7V To 5.5V
• Control Interface: Serial, SPI
• No. Of Pots: Single
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: EVAL-AD5165EBZ - BOARD EVALUATION FOR AD5165
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: AD5165BUJZ100-R2; AD5165BUJZ100-R2TR

LAYOUT AND POWER SUPPLY BYPASSING
It is good practice to employ compact, minimum lead length
layout design. The leads to the inputs should be as direct as
possible with a minimum conductor length. Ground paths
should have low resistance and low inductance.
Similarly, it is also good practice to bypass the power supplies
with quality capacitors for optimum stability. Supply leads to
the device should be bypassed with disk or chip ceramic
capacitors of 0.01 µF to 0.1 µF. Low ESR 1 µF to 10 µF tantalum
or electrolytic capacitors should also be applied at the supplies
to minimize any transient disturbance and low frequency ripple
(see Figure 42). Note that the digital ground should also be
joined remotely to the analog ground at one point to minimize
the ground bounce.
V
DD
10 µ F
Figure 42. Power Supply Bypassing
C3
+
0.1 µ F
C1
V
DD
AD5165
GND
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EVALUATION BOARD
An evaluation board, along with all necessary software, is
available to program the AD5165 from any PC running
Windows® 98/2000/XP. The graphical user interface, as shown
in Figure 43, is straightforward and easy to use. More detailed
information is available in the user manual, which comes with
the board.
The AD5165 starts at midscale upon power-up. To increment
or decrement the resistance, the user may move the scroll bars
on the left. To write any specific value, the user should use the
bit pattern in the upper screen and click the Run button. The
format of writing data to the device is shown in Figure 32.
Figure 43. AD5165 Evaluation Board Software
AD5165