1 SEE THE LAYOUT, DECOUPLING, AND GROUNDIN" />
參數(shù)資料
型號: AD7625BCPZ
廠商: Analog Devices Inc
文件頁數(shù): 7/24頁
文件大小: 0K
描述: IC ADC 16BIT 6MSPS SAR 32LFCSP
設(shè)計資源: High Speed, Precision, Differential AC-Coupled Drive Circuit for AD7625 (CN0080)
特色產(chǎn)品: AD7625: 16-Bit, 6MSPS PulSAR Differential ADC
標準包裝: 1
系列: PulSAR®
位數(shù): 16
采樣率(每秒): 6M
數(shù)據(jù)接口: 串行
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 190mW
電壓電源: 模擬和數(shù)字
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 32-VFQFN 裸露焊盤,CSP
供應(yīng)商設(shè)備封裝: 32-LFCSP-VQ(5x5)
包裝: 托盤
輸入數(shù)目和類型: 1 個差分,雙極
Data Sheet
AD7625
Rev. A | Page 15 of 24
TYPICAL CONNECTION DIAGRAM
1 SEE THE LAYOUT, DECOUPLING, AND GROUNDING SECTION.
2 C
REF IS USUALLY A 10F CERAMIC CAPACITOR WITH LOW ESR AND ESL.
3 USE PULL-UP OR PULL-DOWN RESISTORS TO CONTROL EN0, EN1 DURING POWER-UP. EN0 AND EN1 INPUTS CAN BE
FIXED IN HARDWARE OR CONTROLLED USING A DIGITAL HOST (EN0 = 0 AND EN1 = 0 IS AN ILLEGAL STATE).
4 OPTION TO USE A CMOS (CNV+) OR LVDS (CNV±) INPUT TO CONTROL CONVERSIONS.
5 TO ENABLE SELF-CLOCKED MODE, TIE DCO+ TO GND USING A PULL-DOWN RESISTOR.
6 CONNECT PIN 19 AND PIN 20 TO VDD1 SUPPLY; ISOLATE FROM PIN 1 USING A FERRITE BEAD SIMILAR TO WURTH 74279266.
7 SEE THE DRIVING THE AD7625 SECTION FOR DETAILS ON AMPLIFIER CONFIGURATIONS.
8 SEE THE VOLTAGE REFERENCE OPTIONS SECTION FOR DETAILS.
AD7625
CREF
10F1, 2
V+
ADR4348
ADR444
CONVERSION4
CONTROL
CMOS (CNV+ ONLY)
OR
LVDS CNV+ AND CNV–
USING 100
TERMINATION RESISTOR
DIGITAL INTERFACE SIGNALS
DIGITAL HOST
LVDS TRANSMIT AND RECEIVE
VDD1
VDD2
CAP1
REFIN
EN0
EN1
VDD2
CNV
24
23
22
21
20
19
18
CNV
+
D–
D+
VI
O
G
ND
DCO
DCO
+
CL
K–
GND
IN+
IN–
VCM
VDD1
VDD2
CL
K+
RE
F
G
ND
RE
F
RE
F
CAP
2
G
ND
CAP
2
CAP
2
10nF
100nF
10F
ADR2808
VIO
10k3
1
0k
CONTROL FOR
ENABLE
PINS
VIO
(2.5V)
5
1
00
100
PADDLE
CAPACITOR ON OUTPUT
FOR STABILITY
10F1
100nF
FERRITE
BEAD6
VDD1
(5V)
VDD2
(2.5V)
VDD1
(5V)
VDD2
(2.5V)
100nF
VDD2
(2.5V)
IN+
IN–
VCM
SEE THE DRIVING
THE AD7625 SECTION7
8
9
10
11
12
13
14
15
16
17
1
00
100
1
2
3
4
5
6
7
32
31
30
29
28
27
26
25
07652-
027
Figure 22. Typical Application Diagram
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