ad7376 Analog Devices, Inc., ad7376 Datasheet - Page 6

• Manufacturer Part Number: ad7376
• Description: +30 V/?15 V Operation 128-position Digital Potentiometer
• Manufacturer: Analog Devices, Inc.

AD7376
3-WIRE DIGITAL INTERFACE
Table 4. AD7376 Serial Data-Word Format
MSB
D6
2
1
Data is loaded MSB first.
6
D5
(DATA OUT)
(DATA IN)
V
V
OUT
CLK
OUT
SDI
SDO
CLK
CS
SDI
CS
D4
t
V
CSH0
0V
DD
Figure 2. AD7376 3-Wire Digital Interface Timing Diagram
1
0
1
0
1
0
1
0
1
1
0
1
0
1
0
0
1
t
CSS
Figure 3. Detail Timing Diagram
D
(V
X
D'
t
D6
CH
A
X
= V
Rev. B | Page 6 of 20
D3
RDAC REGISTER LOAD
DD
D5
t
DS
, V
t
CL
B
D4
D'
= 0 V, V
X
t
D
DH
D3
X
t
±1 LSB ERROR BAND
W
CSH
= V
D2
OUT
D1
)
D2
t
t
PD_MAX
CS1
D0
t
S
t
CSW
±1 LSB
D1
LSB
D0
2
0