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AD6644ST/PCB датащи(PDF) 6 Page - Analog Devices

номер детали AD6644ST/PCB
подробное описание детали  14-Bit, 40 MSPS/65 MSPS A/D Converter
PDF  19 Pages
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производитель  AD [Analog Devices]
домашняя страница  http://www.analog.com
Logo AD - Analog Devices

AD6644ST/PCB датащи(HTML) 6 Page - Analog Devices

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AD6644
–6–
REV. 0
PIN FUNCTION DESCRIPTIONS
Pin No.
Name
Function
1, 33, 43
DVCC
3.3 V Power Supply (Digital) Output Stage Only.
2, 4, 7, 10, 13, 15, 17, 19, 21, 23,
GND
Ground.
25, 27, 29, 34, 42
3VREF
2.4 V (Analog Reference). Bypass to ground with 0.1
µF microwave
chip capacitor.
5
ENCODE
Encode Input; conversion initiated on rising edge.
6
ENCODE
Complement of ENCODE; differential input.
8, 9, 14, 16, 18, 22, 26, 28, 30
AVCC
5 V Analog Power Supply.
11
AIN
Analog Input.
12
AIN
Complement of AIN; Differential Analog Input.
20
C1
Internal Voltage Reference; bypass to ground with 0.1
µF microwave
chip capacitor.
24
C2
Internal Voltage Reference; bypass to ground with 0.1
µF microwave
chip capacitor.
31
DNC
Do not connect this pin.
32
OVR
Overrange Bit; high indicates analog input exceeds
±FS.
35
DMID
Output Data Voltage Midpoint; approximately equal to (DVCC)/2.
36
D0 (LSB)
Digital Output Bit (Least Significant Bit); Two’s Complement
37–41, 44–50
D1–D5, D6–D12
Digital Output Bits in Two’s Complement.
51
D13 (MSB)
Digital Output Bit (Most Significant Bit); Two’s Complement.
52
DRY
Data Ready Output.
PIN CONFIGURATION
40
41
42
43
44
45
46
47
48
49
50
51
52
14 15 16 17 18 19 20 21 22 23 24 25 26
1
2
3
4
5
6
7
8
9
10
11
12
13
27
28
29
30
31
32
33
34
35
36
37
38
39
PIN 1
IDENTIFIER
TOP VIEW
(Not to Scale)
DNC = DO NOT CONNECT
DVCC
GND
VREF
GND
ENCODE
ENCODE
GND
AVCC
AVCC
GND
AIN
AIN
GND
D3
D2
D1
D0 (LSB)
DMID
GND
DVCC
OVR
DNC
AVCC
GND
AVCC
GND
AD6644



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