参数资料
型号: AD9740ACPZRL7
厂商: Analog Devices Inc
文件页数: 31/32页
文件大小: 0K
描述: IC DAC 10BIT 210MSPS 32-LFCSP
产品培训模块: Data Converter Fundamentals
DAC Architectures
标准包装: 1,500
系列: TxDAC®
设置时间: 11ns
位数: 10
数据接口: 并联
转换器数目: 1
电压电源: 模拟和数字
功率耗散(最大): 145mW
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 32-VFQFN 裸露焊盘,CSP
供应商设备封装: 32-LFCSP-VQ(5x5)
包装: 带卷 (TR)
输出数目和类型: 2 电流,单极;2 电流,双极
采样率(每秒): 210M
配用: AD9740ACP-PCBZ-ND - BOARD EVAL FOR AD9740ACP
AD9740
Rev. B | Page 8 of 32
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
NC = NO CONNECT
28
27
26
25
24
23
22
21
20
19
18
17
16
15
DB8
DB7
DB6
DB3
DB4
DB5
(MSB) DB9
DVDD
DCOM
MODE
IOUTA
RESERVED
AVDD
DB2
DB1
DB0
NC
IOUTB
ACOM
NC
SLEEP
NC
REFLO
REFIO
FS ADJ
CLOCK
AD9740
TOP VIEW
(Not to Scale)
02911-
003
Figure 3. 28-Lead SOIC and TSSOP Pin Configuration
PIN 1
INDICATOR
NC = NO CONNECT
1
DB3
2
DB2
3
DVDD
4
DB1
5
DB0
6
NC
7
NC
8
NC
24 FS ADJ
23 REFIO
22 ACOM
21 IOUTA
20 IOUTB
19 ACOM
18 AVDD
17 AVDD
9
N
C
1
0
D
C
O
M
11
C
L
K
V
D
12
C
L
K
+
13
C
L
K
14
C
L
K
C
O
M
15
C
M
O
D
E
1
6
M
O
D
E
32
D
B
4
3
1
D
B
5
3
0
D
B
6
2
9
D
B
7
2
8
D
B
8
2
7
D
B
9
(M
S
B
)
26
D
C
O
M
25
S
L
E
P
TOP VIEW
(Not to Scale)
AD9740
02911-
004
Figure 4. 32-Lead LFCSP Pin Configuration
Table 5. Pin Function Descriptions
SOIC/TSSOP
Pin No.
LFCSP
Pin No.
Mnemonic
Description
1
27
DB9 (MSB)
Most Significant Data Bit (MSB).
2 to 9
28 to 32, 1, 2, 4
DB8 to DB1
Data Bits 8 to 1.
10
5
DB0 (LSB)
Least Significant Data Bit (LSB).
11 to 14, 19
6 to 9
NC
No Internal Connection.
15
25
SLEEP
Power-Down Control Input. Active high. Contains active pull-down circuit; it can be
left unterminated if not used.
16
N/A
REFLO
Reference Ground when Internal 1.2 V Reference Used. Connect to ACOM for both
internal and external reference operation modes.
17
23
REFIO
Reference Input/Output. Serves as reference input when using external reference.
Serves as 1.2 V reference output when using internal reference. Requires 0.1 μF capacitor
to ACOM when using internal reference.
18
24
FS ADJ
Full-Scale Current Output Adjust.
20
19, 22
ACOM
Analog Common.
21
20
IOUTB
Complementary DAC Current Output. Full-scale current when all data bits are 0s.
22
21
IOUTA
DAC Current Output. Full-scale current when all data bits are 1s.
23
N/A
RESERVED
Reserved. Do Not Connect to Common or Supply.
24
17, 18
AVDD
Analog Supply Voltage (3.3 V).
25
16
MODE
Selects Input Data Format. Connect to DCOM for straight binary, DVDD for twos complement.
N/A
15
CMODE
Clock Mode Selection. Connect to CLKCOM for single-ended clock receiver (drive CLK+
and float CLK–). Connect to CLKVDD for differential receiver. Float for PECL receiver
(terminations on-chip).
26
10, 26
DCOM
Digital Common.
27
3
DVDD
Digital Supply Voltage (3.3 V).
28
N/A
CLOCK
Clock Input. Data latched on positive edge of clock.
N/A
12
CLK+
Differential Clock Input.
N/A
13
CLK
Differential Clock Input.
N/A
11
CLKVDD
Clock Supply Voltage (3.3 V).
N/A
14
CLKCOM
Clock Common.
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