AD5235BRU25 Analog Devices Inc, AD5235BRU25 Datasheet - Page 14

• Manufacturer Part Number: AD5235BRU25
• Description: IC POT DUAL 25K 1024POS 16-TSSOP
• Manufacturer: Analog Devices Inc

Specifications of AD5235BRU25

• Rohs Status: RoHS non-compliant
• Taps: 1024
• Resistance (ohms): 25K
• Number Of Circuits: 2
• Temperature Coefficient: 35 ppm/°C Typical
• Memory Type: Non-Volatile
• Interface: 4-Wire SPI Serial
• Voltage - Supply: 3 V ~ 5.5 V, ±2.25 V ~ 2.75 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-TSSOP
• Resistance In Ohms: 25K
• End To End Resistance: 25kohm
• Track Taper: Logarithmic
• Resistance Tolerance: ± 30%
• No. Of Steps: 1024
• Supply Voltage Range: 3V To 5.5V, ± 2.25V To ± 2.75V
• Control Interface: Serial, SPI
• For Use With: EVAL-AD5235EBZ - BOARD EVALUATION FOR AD5235
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

AD5235
TEST CIRCUITS
Figure 27 to Figure 37 define the test conditions used in the Specifications section.
Figure 27. Resistor Position Nonlinearity Error (Rheostat Operation; R-INL, R-DNL)
Figure 28. Potentiometer Divider Nonlinearity Error (INL, DNL)
V+
V
MS2
~
V
Figure 30. Power Supply Sensitivity (PSS, PSRR)
DD
V
V+
A
B
A
A
B
DUT
NC = NO CONNECT
Figure 29. Wiper Resistance
W
NC
W
A
B
DUT
W
V
A
B
DUT
V
MS
W
W
V
MS1
V
PSS (%/%) =
V+ = V
PSRR (dB) = 20 LOG
MS
I
W
V+ = V
1LSB = V+/2
R
= V
I
W
W
DD
DD
= [V
V
DD
MS
/R
±10%
MS1
NOMINAL
∆V
∆V
N
– V
DD %
MS %
MS2
(
]/I
∆
∆V
W
V
MS
DD
)
Rev. D | Page 14 of 32
OFFSET
OFFSET
GND
OFFSET
GND
GND
V
IN
Figure 34. Incremental On Resistance
DUT
A = NC
B
V
Figure 33. Gain vs. Frequency
Figure 32. Noninverting Gain
IN
OFFSET BIAS
W
Figure 31. Inverting Gain
V
DUT
IN
A
2.5V
OFFSET BIAS
A
DUT
I
SW
A
B
W
DUT
V
CODE = 0x00
W
SS
B
W
R
TO V
SW
B
OP279
=
OP279
DD
0.1V
I
SW
5V
OP42
5V
+15V
–15V
+
–
0.1V
V
OUT
V
OUT
V
OUT