參數資料
型號: AD9012BQ
廠商: ANALOG DEVICES INC
元件分類: ADC
英文描述: High Speed 8-Bit TTL A/D Converter
中文描述: 1-CH 8-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, CDIP28
封裝: CERDIP-28
文件頁數: 5/8頁
文件大?。?/td> 141K
代理商: AD9012BQ
REV. D
AD9012
–5–
APERTURE
DELAY
ANALOG
INPUT
ENCODE
OUTPUT
DATA
N
N + 1
N + 2
N – 1
N + 1
N
t
PD
Figure 2. Timing Diagram
1
V
REF
R
R/2
R/2
R
2
V
REF
2
5.2V
256 COMPARATOR
CELLS
REF
MID
ANALOG
INPUT
ENCODE
1
5.0V
DIGITAL
OUTPUTS
1
5.0V
Figure 3. Input Output Circuits
DIE LAYOUT AND MECHANICAL INFORMATION
Die Dimensions . . . . . . . . . . . . . . . . 111
×
123
×
15 (
±
2) mils
Pad Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
×
4 mils
Metalization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Gold
Backing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . None
Substrate Potential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –V
S
Passivation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Nitride
Die Attach . . . . . . . . . . . . . . . . . . . . Gold Eutectic (Ceramic)
Epoxy (Plastic)
Bond Wire . . . . . . . . . . . . . 1–1.3 mil Gold; Gold Ball Bonding
ALL RESISTORS
6
5%
ALL CAPACITORS
6
20%
ALL SUPPLY VOLTAGES
6
5%
OPTION #1 (STATIC) AD1 = –2.0V; AD2 = +2.4V
OPTION #2 (DYNAMIC) SEE WAVEFORMS
D
1
(LSB)
D
2
D
3
D
4
D
5
D
6
D
7
OVERFLOW
AIN
ENCODE
–V
REF
V
H
+V
REF
AD1
AD2
–2.0V
DIGITAL
GROUND
ANALOG
GROUND
0.1
m
F
–5.2V
+5.0V
–V
S
+V
S
0.1
m
F
100
V
510
V
D
8
(MSB)
ONE JUMPER
PER BOARD
AD9012
0V
–2V
+2.4V
+0.4V
640
m
s
5
m
s
AD1
AD2
1k
V
1k
V
1k
V
1k
V
1k
V
1k
V
1k
V
1k
V
1k
V
D
1
LOAD
RESISTORS
Figure 4. Burn-In Diagram
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