AD9012SQ AD [Analog Devices], AD9012SQ Datasheet - Page 5

• Manufacturer Part Number: AD9012SQ
• Description: High Speed 8-Bit TTL A/D Converter
• Manufacturer: AD [Analog Devices]

Die Dimensions . . . . . . . . . . . . . . . . 111
Pad Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Metalization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Gold
Backing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . None
Substrate Potential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –V
Passivation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Nitride
Die Attach . . . . . . . . . . . . . . . . . . . . Gold Eutectic (Ceramic)
Bond Wire . . . . . . . . . . . . . 1–1.3 mil Gold; Gold Ball Bonding
REV. D
DIE LAYOUT AND MECHANICAL INFORMATION
ENCODE
5.0V
ENCODE
ANALOG
OUTPUT
INPUT
DATA
ANALOG
INPUT
t
123
PD
N
5.2V
Epoxy (Plastic)
APERTURE
DELAY
Figure 3. Input Output Circuits
15 ( 2) mils
Figure 2. Timing Diagram
N – 1
256 COMPARATOR
4 mils
CELLS
S
–5–
N + 1
–2.0V
R
R
R/2
R/2
AD2
AD1
N
ONE JUMPER
REF
PER BOARD
V
V
REF
REF
MID
ALL RESISTORS
ALL CAPACITORS
ALL SUPPLY VOLTAGES
OPTION #1 (STATIC) AD1 = –2.0V; AD2 = +2.4V
OPTION #2 (DYNAMIC) SEE WAVEFORMS
AD2
Figure 4. Burn-In Diagram
AD1
N + 2
5.0V
100
510
0.1 F
GROUND
AIN
N + 1
ENCODE
–V
V
+V
DIGITAL
640 s
H
–5.2V
REF
REF
–V
5%
5 s
20%
S
AD9012
5%
OVERFLOW
D
D
+5.0V
ANALOG
GROUND
D
+V
8
1
1
(MSB)
(LSB)
(LSB)
S
DIGITAL
OUTPUTS
D
D
D
D
D
D
7
6
5
4
3
2
LOAD
RESISTORS
1k
1k
1k
1k
1k
1k
1k
AD9012
1k
1k
+2.4V
+0.4V
–2V
0V
0.1 F