AD6640PCB AD [Analog Devices], AD6640PCB Datasheet - Page 7
AD6640PCB
Manufacturer Part Number
AD6640PCB
Description
12-Bit, 65 MSPS IF Sampling A/D Converter
Manufacturer
AD [Analog Devices]
Datasheet
1.AD6640PCB.pdf
(24 pages)
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REV. 0
REV. 0
ENCODE
V
REF
AV
AIN
AIN
CC
Figure 4. Compensation Pin, C1
Figure 2. Analog Input Stage
V
V
V
CURRENT
V
MIRROR
CH
CL
CH
Figure 3. Encode Inputs
CL
R1
17k
R2
8k
AV
AV
AV
CC
CC
CC
450
450
CIRCUITS
AV
TIMING
AV
CC
CC
DIGITAL OUTPUTS
C1
ENCODE INPUTS
BUF
BUF
BUF
ANALOG
AV
INPUTS
(ENCODE)
(D11–D0)
17k
CC
8k
R1
R2
AIN
AIN
V
T/H
T/H
REF
AV
CC
t
A
Figure 1. Timing Diagram
ENCODE
t
OD
N
–7–
–7–
N – 2
N + 1
2.4V
N – 1
Equivalent Circuits–AD6640
Figure 5. Digital Output Stage
Figure 6. 2.4 V Reference
CURRENT
CURRENT
MIRROR
MIRROR
DV
CC
N
0.5mA
V
REF
AV
CC
DV
AV
CC
CC
D0–D11
V
REF
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