DAC8512GBC Analog Devices, DAC8512GBC Datasheet - Page 4

• Manufacturer Part Number: DAC8512GBC
• Description: % V/ Serial Input Complete 12-Bit DAC
• Manufacturer: Analog Devices

DAC8512
CS
H
L
L
L
H
H
H
H
NOTES
l
2
3
4
CS and CLK are interchangeable.
Returning CS HIGH avoids an additional “false clock” of serial data input.
Do not clock in serial data while LD is LOW.
+
+ positive logic transition; – negative logic transition; X = Don’t Care.
2
CLK
X
L
H
L
X
X
X
X
+
2
V
OUT
CLR
H
H
H
H
H
H
H
L
CLK
CLK
CLR
SDI
SDI
+
CS
LD
LD
FS
ZS
LD
H
H
H
H
H
L
X
H
–
t
ld1
D11
Serial Shift Register Function
No Effect
No Effect
No Effect
Shift-Register-Data Advanced One Bit
Shift-Register-Data Advanced One Bit
No Effect
No Effect
No Effect
No Effect
t
css
D10
CLK
SDI
CS
D9
Figure 2. Equivalent Clock Input Logic
t
cl
Table I. Control-Logic Truth Table
t
ds
D8
Figure 1. Timing Diagram
ESD PROTECTION DIODES TO V
t
dh
D7
t
ch
–4–
D6
D5
DAC Register Function
Latched
Latched
Latched
Latched
Latched
Updated with Current Shift Register Contents
Transparent
Loaded with All Zeros
Latched All Zeros
DATA
DD
t
D4
ldw
AND GND
REGISTER
t
s
SHIFT
D3
D2
ERROR BAND
1 LSB
D1
t
csh
D0
t
ld2
t
clrw
t
S
REV. A