AD9002 Analog Devices, Inc., AD9002 Datasheet - Page 5

• Manufacturer Part Number: AD9002
• Description: High Speed 8-bit Monolithic A/d Converter
• Manufacturer: Analog Devices, Inc.

REV. D
ENCODE
ENCODE
AD1
AD2
AD3
ALL RESISTORS
ALL CAPACITORS
ALL SUPPLIES
DYNAMIC BURN IN
STATIC BURN IN
–2V
AD1 = 0V
AD1
AD2
AD3
100
AD9002
0.1 F
1k
1k
–5.2V
5%
Figure 3. Burn-in Diagram
5%,
AD2 = ECL HIGH
20%, F
HYSTERESIS
OVERFLOW INH
+V
GROUND
ANALOG IN
ENCODE
ENCODE
–V
0.1 F
REF
REF
AD9002
–V
S
ANALOG
ENCODE
OUTPUT
OVERFLOW
INPUT
AD3 = ECL LOW
DATA
ANALOG
INPUT
t
D8
D7
D6
D5
D4
D3
D2
D1
PD
ECL HIGH
ECL LOW
ECL HIGH
ECL LOW
1k
1k
1k
1k
1k
1k
1k
1k
1k
N
–2V
0V
–5.2V
DELAY
APERTURE
Figure 2. Input/Output Circuits
Figure 1. Timing Diagram
–5.2V
–5.2V
N – 1
COMPARATOR CELLS
AD9002
–5–
GROUND
GROUND
–5.2V
ANALOG
ANALOG
ENCODE
ENCODE
ANALOG
ANALOG
N + 1
Die Dimensions . . . . . . . . . . . . . . . . . 106
Pad Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4 mils
Metalization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Gold
Backing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . None
Substrate Potential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –V
Passivation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Nitride
Die Attach . . . . . . . . . . . . . . . . . . . . . Gold Eutectic (Ceramic)
Bond Wire . . . . . . . . . . . . . 1-1.3 mil Gold; Gold Ball Bonding
INPUT
+V
INPUT
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Epoxy (Plastic)
REF
Figure 4. Die Layout and Mechanical Information
–5.2V
–V
HYSTERESIS
REF
N
REF
OVERFLOW
INHIBIT
MID
R/2
R
R
R/2
GROUND DIGITAL
DIGITAL
+V
–V
N + 2
REF
REF
GROUND
DIGITAL
REF
–V
MID
N + 1
S
D1 (LSB)
DIGITAL –V
OVERFLOW
AD9002
D2
S
D3
114 15 ( 2) mils
AD9002
D8 (MSB)
D7
D6
DIGITAL
GROUND
DIGITAL
GROUND
D5
D4
ANALOG –V
OUTPUT
DIGITAL
S
S