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AD8115AST Fiches technique(PDF) 10 Page - Analog Devices

No de pièce AD8115AST
Description  Low Cost 225 MHz 16 횞 16 Crosspoint Switches
PDF  32 Pages
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Fabricant  AD [Analog Devices]
Site Internet  http://www.analog.com
Logo AD - Analog Devices

AD8115AST Fiches technique(HTML) 10 Page - Analog Devices

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AD8114/AD8115
Rev. B | Page 10 of 32
Table 8. Pin Function Descriptions
Pin No.
Mnemonic
Pin Description
58, 60, 62, 64, 66, 68, 70, 72,
4, 6, 8, 10, 12, 14, 16, 18
INxx
Analog Inputs. xx = Channels 00 through 15.
96
DATA IN
Serial Data Input, TTL Compatible.
97
CLK
Clock, TTL Compatible. Falling edge triggered.
98
DATA OUT
Serial Data Out, TTL Compatible.
95
UPDATE
Enable (Transparent) Low. Allows serial register to connect directly to switch matrix.
Data latched when high.
100
RESET
Disable Outputs, Active Low.
99
CE
Chip Enable, Enable Low. Must be low to clock in and latch data.
94
SER/PAR
Selects Serial Data Mode, Low or Parallel Data Mode, High. Must be connected.
53, 51, 49, 47, 45, 43, 41, 39,
37, 35, 33, 31, 29, 27, 25, 23
OUTyy
Analog Outputs. yy = Channels 00 through 15.
3, 5, 7, 9, 11, 13, 15, 17, 19, 57,
59, 61, 63, 65, 67, 69, 71, 73
AGND
Analog Ground for Inputs and Switch Matrix. Must be connected.
1, 75
DVCC
+5 V for Digital Circuitry.
2, 74
DGND
Ground for Digital Circuitry.
20, 56
AVEE
−5 V for Inputs and Switch Matrix.
21, 55
AVCC
+5 V for Inputs and Switch Matrix.
54, 50, 46, 42, 38, 34, 30, 26, 22
AVCCxx/yy
+5 V for Output Amplifier that is Shared by Channels xx and yy. Must be connected.
52, 48, 44, 40, 36, 32, 28, 24
AVEExx/yy
–5 V for Output Amplifier that is Shared by Channels xx and yy. Must be connected.
84
A0
Parallel Data Input, TTL Compatible (output select LSB).
83
A1
Parallel Data Input, TTL Compatible (output select).
82
A2
Parallel Data Input, TTL Compatible (output select).
81
A3
Parallel Data Input, TTL Compatible (output select MSB).
80
D0
Parallel Data Input, TTL Compatible (input select LSB)
79
D1
Parallel Data Input, TTL Compatible (input select).
78
D2
Parallel Data Input, TTL Compatible (input select).
77
D3
Parallel Data Input, TTL Compatible (input select MSB).
76
D4
Parallel Data Input, TTL Compatible (output enable).
85 to 93
NC
No Connect.



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