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參數(shù)資料
| 型號(hào)： | AD7568BS |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | DAC |
| 英文描述： | EDLM 24V Explosion Proof Class 1 Zone 1 RYG ; Mounting Style: Wall/Flush/Horizontal mount; Functions: Continuous or Flashing Light; Light Type: LED; Rated Voltage: 24V AC/DC; Style: 3 - light; Color: Red, Yellow, Green; Diameter: 60mm (light tower - not case enclosure); Applicable Model: EDLM |
| 中文描述： | OCTAL, SERIAL INPUT LOADING, 0.5 us SETTLING TIME, 12-BIT DAC, PQFP44 |
| 封裝： | PLASTIC, QFP-44 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大小： | 241K |
| 代理商： | AD7568BS |
FUNCT IONAL BLOCK DIAGRAM
R B
I B
R F
DAC A
DAC A
LATCH
INPUT
LATCH A
INPUT
LATCH B
INPUT
LATCH C
INPUT
LATCH D
INPUT
LATCH E
INPUT
LATCH F
INPUT
LATCH G
DAC B
LATCH
DAC C
LATCH
DAC D
LATCH
DAC E
LATCH
DAC F
LATCH
DAC G
LATCH
DAC B
DAC C
DAC D
DAC E
DAC F
DAC G
V B
V D
R G
V G
V F
V E
R E
R D
R C
I C
R A
V A
V C
V
DD
DGND
LDAC
CLR
AD7568
12
12
12
12
12
12
12
12
12
12
12
12
12
12
V H
A0
CONTROL LOGIC
+
INPUT SHIFT
REGISTER
CLKIN
SDIN
SDOUT
INPUT
LATCH H
DAC H
LATCH
DAC H
R H
12
12
FSIN
I A
I A
I B
I D
I C
I D
I E
I F
I E
I F
I G
I H
I G
I H
AGND
12
a
LC
2
MOS
Octal 12-Bit DAC
AD7568
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703
FEATURES
Eight 12-Bit DACs in One Package
4-Quadrant Multiplication
Separate References
Single +5 V Supply
Low Power: 1 mW
Versatile Serial Interface
Simultaneous Update Capability
Reset Function
44-Pin PQFP and PLCC
APPLICATIONS
Process Control
Automatic Test Equipment
General Purpose Instrumentation
PIN CONFIGURAT IONS
Plastic Quad Flatpack
Plastic Leaded Chip Carrier
TOP VIEW
(Not to Scale)
1
I
1
1
S
1
C
1
L
1
F
1
1
C
2
2
2
4
4
4
4
4
3
3
3
3
3
3
33
32
31
30
29
28
27
26
25
24
23
1
2
3
4
5
6
7
8
9
10
11
PIN 1 IDENTIFIER
NC
V C
V B
R B
I B
I B
V
R
R G
I G
I G
V G
V F
R F
V
R
F
R
F
R
R C
I C
I C
R A
V A
V
D
D
V H
R H
A
S
I F
I F
I
A
NC
NC = NO CONNECT
O
I
O
I
O
I
O
O
I
O
I
O
I
O
AD7568 PQFP
TOP VIEW
Not to Scale
NC = NO CONNECT
NC
V
REF
C
V
REF
B
R
FB
B
I
OUT1
B
I
OUT2
B
I
OUT1
C
NC
V
REF
F
V
REF
G
R
FB
G
R
FB
F
I
OUT1
F
I
OUT2
F
I
O
I
O
V
D
D
A
R
F
I
O
I
O
L
F
S
S
C
V
R
R
F
I
O
A
I
O
I
O
C
V
R
V
REF
A
R
FB
A
I
OUT2
G
V
REF
H
R
FB
H
I
OUT1
G
44
1
2
6
4
5
21
24
23
22
18
20
19
39
38
35
34
33
37
36
3
7
8
11
12
13
9
10
40
41
42
25
28
27
26
43
31
30
29
32
15
16
17
14
TOP VIEW
(Not to Scale)
AD7568 PLCC
I
O
I
OUT2
C
R
FB
C
GE NE RAL DE SCRIPT ION
T he AD7568 contains eight 12-bit DACs in one monolithic de-
vice. T he DACs are standard current output with separate V
REF
,
I
OUT 1
, I
OUT 2
and R
FB
terminals.
T he AD7568 is a serial input device. Data is loaded using
FSIN
, CLK IN and SDIN. One address pin, A0, sets up a de-
vice address, and this feature may be used to simplify device
loading in a multi-DAC environment.
All DACs can be simultaneously updated using the asynchro-
nous
LDAC
input and they can be cleared by asserting the
asynchronous
CLR
input.
T he AD7568 is housed in a space-saving 44-pin plastic quad
flatpack and 44-lead PLCC.
REV. B
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
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