EVAL-AD5142ADBZ Analog Devices, EVAL-AD5142ADBZ Datasheet - Page 19

• Manufacturer Part Number: EVAL-AD5142ADBZ
• Description: Digital Potentiometer Development Tools EVALUATION BOARD I.C.
• Manufacturer: Analog Devices
• Series: AD5142Ar

Specifications of EVAL-AD5142ADBZ

• Rohs: yes
• Product: Evaluation Boards
• Tool Is For Evaluation Of: AD5142A
• Resistance: 10 kOhms/100 kOhms
• Operating Supply Voltage: 5.5 V
• Interface Type: I2C
• Maximum Operating Temperature: + 125 C
• Factory Pack Quantity: 1

Data Sheet
TEST CIRCUITS
Figure 32 to Figure 36 define the test conditions used in the Specifications section.
Figure 32. Resistor Integral Nonlinearity Error (Rheostat Operation; R-INL, R-DNL)
Figure 33. Potentiometer Divider Nonlinearity Error (INL, DNL)
NC = NO CONNECT
NC
V+
B
A
DUT
NC = NO CONNECT
W
NC
Figure 34. Wiper Resistance
A
B
DUT
V
B
DUT
A
W
W
V
W
MS1
I
V
W
MS
V+ = V
1LSB = V+/2
R
= V
W
DD
I
= V
W
V
/R
DD
MS
MS1
NOMINAL
/I
W
N
Rev. A | Page 19 of 32
V+
~
V
DD
Power Supply Rejection Ratio (PSS, PSRR)
Figure 35. Power Supply Sensitivity and
V
Figure 36. Incremental On Resistance
A
A
B
DUT
A = NC
B
W
W
V
MS
I
SW
V
CODE = 0x00
SS
R
TO V
SW
V+ = V
PSRR (dB) = 20 LOG
PSS (%/%) =
AD5122A/AD5142A
=
DD
0.1V
I
SW
DD
+
–
±10%
0.1V
ΔV
ΔV
MS %
DD %
(
Δ
ΔV
V
MS
DD
)