CREF
參數(shù)資料
型號(hào): AD7626BCPZ
廠商: Analog Devices Inc
文件頁(yè)數(shù): 9/28頁(yè)
文件大?。?/td> 0K
描述: IC ADC 16BIT 10MSPS DIFF 32LFCSP
設(shè)計(jì)資源: Single-Ended-to-Differential High Speed Drive Circuit for 16-Bit, 10 MSPS AD7626 ADC (CN0105)
特色產(chǎn)品: AD7626 PulSAR Differential ADC
標(biāo)準(zhǔn)包裝: 1
位數(shù): 16
采樣率(每秒): 10M
數(shù)據(jù)接口: 串行
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 170mW
電壓電源: 模擬和數(shù)字
工作溫度: -40°C ~ 85°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: 32-VFQFN 裸露焊盤(pán),CSP
供應(yīng)商設(shè)備封裝: 32-LFCSP-VQ(5x5)
包裝: 托盤(pán)
輸入數(shù)目和類(lèi)型: 2 個(gè)單端,單極;1 個(gè)差分,雙極
Data Sheet
AD7626
Rev. B | Page 17 of 28
TYPICAL CONNECTION DIAGRAM
07
64
8-
02
7
AD7626
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
GN
D
DCO
DCO
+
CL
K–
GND
IN+
IN–
VCM
VDD1
VDD2
CL
K+
RE
F
GN
D
RE
F
RE
F
CAP
2
GN
D
CAP
2
CAP
2
10nF
100nF
10F
ADR2808
VIO
10k3
10k
CONTROL FOR
ENABLE
PINS
VIO
(2.5V)
5
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
100
1
2
3
4
5
6
7
32
31
30
29
28
27
26
25
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 AND EN1 DURING POWER-UP. EN0 AND EN1 INPUTS CAN BE
FIXED IN HARDWARE OR CONTROLLED USING A DIGITAL HOST (EN0 = 0 AND EN1 = 0 PUTS THE ADC IN POWER-DOWN).
4 OPTION TO USE A CMOS (CNV+) OR LVDS (CNV±) INPUT TO CONTROL CONVERSIONS.
5 TO ENABLE SELF-CLOCKED MODE, TIE DCO+ TO GND.
6 CONNECT PIN 19 AND PIN 20 TO VDD1 SUPPLY; ISOLATE THE TRACE TO PIN 19 AND PIN 20 FROM THE TRACE TO PIN 1 USING A
FERRITE BEAD SIMILAR TO WURTH 74279266.
7 SEE THE DRIVING THE AD7626 SECTION FOR DETAILS ON AMPLIFIER CONFIGURATIONS.
8 SEE THE VOLTAGE REFERENCE OPTIONS SECTION FOR DETAILS.
Figure 31. Typical Application Diagram
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