參數資料
| 型號： | AD7568BP |
| 廠商： | Analog Devices Inc |
| 文件頁數： | 1/14頁 |
| 文件大小： | 0K |
| 描述： | IC DAC 12BIT LC2MOS OCTAL 44PLCC |
| 產品培訓模塊： | Data Converter Fundamentals DAC Architectures |
| 標準包裝： | 1 |
| 設置時間： | 500ns |
| 位數： | 12 |
| 數據接口： | 串行 |
| 轉換器數目： | 8 |
| 電壓電源： | 單電源 |
| 功率耗散（最大）： | 17.5mW |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 44-LCC（J 形引線） |
| 供應商設備封裝： | 44-PLCC（16.59x16.59） |
| 包裝： | 管件 |
| 輸出數目和類型： | 16 電流，單極；16 電流，雙極 |
| 采樣率（每秒）： | 2M |
FUNCTIONAL BLOCK DIAGRAM
R
B
R
F
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
REF
V
D
REF
R
G
FB
V
G
REF
V
F
REF
V
E
REF
FB
R
E
R
D
R
C
FB
R
A
FB
REF
V
A
V
C
REF
V
DD
DGND
LDAC
CLR
AD7568
12
V
H
REF
A0
CONTROL LOGIC
+
INPUT SHIFT
REGISTER
CLKIN
SDIN
SDOUT
INPUT
LATCH H
DAC H
LATCH
DAC H
R
H
FB
12
FSIN
I
A
I
A
I
B
I
B
I
C
I
D
I
C
I
D
I
E
I
F
I
E
I
F
I
G
I
H
I
G
I
H
AGND
12
OUT1
OUT2
OUT1
OUT2
OUT1
OUT2
FB
OUT1
OUT2
OUT1
OUT2
OUT1
OUT2
OUT1
OUT2
OUT1
OUT2
LC2MOS
Octal 12-Bit DAC
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 CONFIGURATIONS
Plastic Quad Flatpack
Plastic Leaded Chip Carrier
AD7568
TOP VIEW
(Not to Scale)
12
13
14
15
16
17
18
19
20
21
22
44
43
42
41
40
39
38
37
36
35
34
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
B
REF
V
D
REF
R
G
FB
V
G
REF
V
F
REF
V
E
REF
FB
R
F
FB
R
E
FB
R
D
R
C
FB
R
B
R
A
FB
REF
V
A
V
C
REF
V
DD
DGND
LDAC
CLR
V
H
REF
A0
CLKIN
SDIN
SDOUT
R
H
FB
FSIN
I
C
I
F
I
E
I
H
AGND
NC
NC = NO CONNECT
OUT2
I
E
OUT1
I
D
OUT1
I
D
OUT2
OUT1
I
C
OUT2
I
B
OUT1
I
B
OUT2
OUT1
I
H
OUT2
I
A
OUT2
I
A
OUT1
I
F
OUT2
I
G
OUT1
I
G
OUT2
AD7568 PQFP
TOP VIEW
Not to Scale
NC = NO CONNECT
NC
VREF C
VREF B
RFB B
IOUT1 B
IOUT1 C
NC
VREF F
VREF G
RFB G
RFB F
IOUT2 F
I OUT2
E
I OUT1
E
V
DD
DGND
AGND
R
FB
E
I OUT1
H
I OUT2
H
LDAC
FSIN
SDIN
SDOUT
CLR
V
REF
E
R
FB
D
I OUT1
D
A0
I OUT2
A
I OUT1
A
CLKIN
V
REF
D
VREF A
RFB A
IOUT2 B
IOUT2 G
VREF H
RFB H
IOUT1 G
44
1
2
64
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 OUT2
D
IOUT2 C
RFB C
IOUT1 F
GENERAL DESCRIPTION
The AD7568 contains eight 12-bit DACs in one monolithic de-
vice. The DACs are standard current output with separate VREF,
IOUT1, IOUT2 and RFB terminals.
The AD7568 is a serial input device. Data is loaded using
FSIN
, CLKIN 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.
The AD7568 is housed in a space-saving 44-pin plastic quad
flatpack and 44-lead PLCC.
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.
REV. C
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
2012 Analog Devices, Inc. All rights reserved.
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