參數(shù)資料
型號： AD9114-DPG2-EBZ
廠商： Analog Devices Inc
文件頁數(shù)： 2/52頁
文件大小： 0K
描述： IC DAC DUAL 8BIT LO PWR 40LFCSP
標準包裝： 1
系列： TxDAC®
DAC 的數(shù)量： 2
位數(shù)： 8
采樣率（每秒）： 125M
數(shù)據(jù)接口： 串行
DAC 型： 電流
工作溫度： -40°C ~ 85°C
已供物品： 板
已用 IC / 零件： AD9114
AD9114/AD9115/AD9116/AD9117
Data Sheet
Rev. C | Page 10 of 52
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
PIN 1
INDICATOR
1
DB5
2
DB4
3
DB3
4
DB2
5
DVDDIO
6
DVSS
7
DVDD
8
DB1
9
DB0 (LSB)
10
NC
23
24
25
26
27
28
29
30
22
21
1
NC
12
NC
13
NC
15
NC
17
CV
DD
16
DCL
KI
O
18
CL
KI
N
19
C
VSS
20
CM
L
Q
14
NC
33
F
S
ADJI
/AUX
I
34
R
E
FIO
35
R
ESET
/PI
N
MD
36
S
CL
K/
CL
KM
D
37
S
D
IO/FOR
M
A
T
38
CS
/P
W
RDN
39
DB7
(
M
S
B)
40
DB6
32
F
S
ADJQ
/AUX
Q
31
CM
L
I
TOP VIEW
(Not to Scale)
AD9114
07466-
005
NOTES
1. NC = NO CONNECT
2. THE EXPOSED PAD IS CONNECTED TO AVSS AND
MUST BE SOLDERED TO THE GROUND PLANE.
EXPOSED METAL AT PACKAGE CORNERS IS
CONNECTED TO THIS PAD.
QOUTP
RLQP
AVSS
AVDD
RLIP
IOUTP
IOUTN
RLIN
QOUTN
RLQN
Figure 2. AD9114 Pin Configuration
Table 7. AD9114 Pin Function Descriptions
Pin No.
Mnemonic
Description
1 to 4
DB[5:2]
Digital Inputs.
5
DVDDIO
Digital I/O Supply Voltage Input (1.8 V to 3.3 V Nominal).
6
DVSS
Digital Common.
7
DVDD
Digital Core Supply Voltage Output (1.8 V). Strap DVDD to DVDDIO at 1.8 V. If DVDDIO > 1.8 V, bypass DVDD
with a 1.0 F capacitor; however, do not otherwise connect it. The LDO should not drive external loads.
8
DB1
Digital Inputs
9
DB0 (LSB)
Digital Input (LSB).
10 to
15
NC
No Connect. These pins are not connected to the chip.
16
DCLKIO
Data Input/Output Clock. Clock used to qualify input data.
17
CVDD
Sampling Clock Supply Voltage Input (1.8 V to 3.3 V). CVDD must be ≥ DVDD.
18
CLKIN
LVCMOS Sampling Clock Input.
19
CVSS
Sampling Clock Supply Voltage Common.
20
CMLQ
Q DAC Output Common-Mode Level. When the internal on-chip (QRCML) is enabled, this pin is connected to
the on-chip QRCML resistor. It is recommended to leave this pin unconnected. When the internal on-chip (QRCML) is
disabled, this pin is the common-mode load for Q DAC and must be connected to AVSS through a resistor, see
the Using the Internal Termination Resistors section. Recommended value for this external resistor is 0 .
21
RLQN
Load Resistor (62.5 ) to the CMLQ Pin. For the internal load resistor to be used, this pin should be tied to
QOUTN externally.
22
QOUTN
Complementary Q DAC Current Output. Full-scale current is sourced when all data bits are 0s.
23
QOUTP
Q DAC Current Output. Full-scale current is sourced when all data bits are 1s.
24
RLQP
Load Resistor (62.5 ) to the CMLQ Pin. For the internal load resistor to be used, this pin should be tied to
QOUTP externally.
25
AVSS
Analog Common.
26
AVDD
Analog Supply Voltage Input (1.8 V to 3.3 V).
27
RLIP
Load Resistor (62.5 ) to the CMLI Pin. For the internal load resistor to be used, this pin should be tied to
IOUTP externally.
28
IOUTP
I DAC Current Output. Full-scale current is sourced when all data bits are 1s.
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