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PDF AD5174 Datasheet ( Hoja de datos )

Número de pieza AD5174
Descripción Digital Rheostat With SPI Interface And 50-TP Memory
Fabricantes Analog Devices 
Logotipo Analog Devices Logotipo
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AD5174 datasheet

1 Page

AD5174 pdf
AD5174www.DataSheet4U.com
Shift Register and Timing Diagrams
DB9 (MSB)
DB0 (LSB)
0 0 C3 C2 C1 C0 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
CONTROL BITS
DATA BITS
Figure 2. Shift Register Content
SCLK
SYNC
t4
t8
t2
t3
t1
DIN 0 0 C3 C2
D7 D6 D5
t7
t9
t5
t6
D2 D1 D0
SDO
Figure 3. Write Timing Diagram, CPOL=0, CPHA = 1
SCLK
SYNC
DIN
SDO
0 0 C3
D0 D0 0
0 C3
t10
X X C3
Figure 4. Read Timing Diagram, CPOL=0, CPHA = 1
t9
D1 D0
D1 D0
Rev. 0 | Page 5 of 20

5 Page

AD5174 arduino
AD5174www.DataSheet4U.com
TEST CIRCUITS
Figure 21 to Figure 25 define the test conditions used in the Specifications section.
DUT
W
A
IW
VMS
DUT
W
A
1G
VMS
V
Figure 21. Resistor Position Nonlinearity Error
(Rheostat Operation; R-INL, R-DNL)
Figure 24. Gain vs. Frequency
DUT
CODE = 0x00
W
RWA
=
VMS
IW
IW
RW
=
RWA
2
A
VMS
Figure 22. Wiper Resistance
DUT
W
A
ICM
GND
+2.75V
–2.75V
GND
NC
+2.75V
GND
–2.75V
NC = NO CONNECT
Figure 25. Common Leakage Current
V+
VDD
W
A
V+ = VDD ±10%
PSRR (dB) = 20 log
VMS
VDD
IW
PSS
(%/%)
=
ΔVMS%
ΔVDD%
VMS
Figure 23. Power Supply Sensitivity (PSS, PSRR)
Rev. 0 | Page 11 of 20

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