AD9002
LINEARITY OUTPUT
(ERROR WAVEFORM)
RECONSTRUCTED
OUTPUT
HOS100
–15V
1k⍀ 4.3k⍀
1k⍀
HOS100
50⍀
3.75⍀
150⍀
2N3906 0.1F
AD741 90⍀ 20⍀ 90⍀
50⍀
0.01F
0.1F
AD9768
DAC
ANALOG
INPUT
10F
50⍀
2k⍀
1k⍀
3.9k⍀
0.1F
–15V
75⍀
HOS200
AD96687
AIN –VREF REFMID +VREF
EQUAL
DISTANCE
AIN
ENCODE
ENCODE
AD9002*
OVERFLOW
INH
HYSTERESIS
OVERFLOW
D8(MSB)
D7
D6
D5
D4
D3
D2
D1(LSB)
REGISTER
100151
1k⍀
0.1F –5.2A –5.2D
ENCODE INPUT
(GROUND
THRESHOLD)
–5.2V
625⍀
0.01F
0.1F 0.1F 0.01F
AD96687
AD96687
50⍀
510⍀
–5.2V
1k⍀ DELAY
*CONTACT FACTORY ABOUT
EVALUATION BOARD AVAILABILITY
13k⍀
–15V
880⍀
0.1F
AD96687
510⍀
–5.2V
1k⍀ DELAY
13k⍀
880⍀
–15V
Figure 6. AD9002 Evaluation Circuit
LINE
DRIVER
100114
37 PIN
D
CONNECTOR
NOTE:
100114 LINE DRIVER OUTPUTS
REQUIRE 510⍀ PULL-DOWN
RESISTORS TO –5.2V. ALL OTHER
ECL OUTPUTS SHOULD BE
TERMINATED TO –2V WITH
100⍀ RESISTERS, UNLESS
OTHERWISE SPECIFIED.
RESISTORS ARE IN ⍀.
CAPACITORS ARE IN F.
65
60
2ND HARMONIC
55
3RD HARMONIC
50
SNR
45
40
35
30
1MHz
10MHz
100MHz
ANALOG INPUT FREQUENCY (0.1dB BELOW FULL SCALE)
125 MSPS ENCODE RATE
Figure 7. Dynamic Performance
REV. D
–7–