AD6644 Analog Devices, AD6644 Datasheet - Page 12
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AD6644
Manufacturer Part Number
AD6644
Description
14-Bit, 40 MSPS/65 MSPS Analog-to-Digital Converter
Manufacturer
Analog Devices
Datasheet
1.AD6644.pdf
(24 pages)
Specifications of AD6644
Resolution (bits)
14bit
# Chan
1
Sample Rate
65MSPS
Interface
Par
Analog Input Type
Diff-Uni
Ain Range
2.2 V p-p
Adc Architecture
Pipelined
Pkg Type
QFP
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Company
Part Number
Manufacturer
Quantity
Price
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Part Number:
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Part Number:
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Manufacturer:
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Company:
Part Number:
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Manufacturer:
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Quantity:
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Company:
Part Number:
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Manufacturer:
Analog Devices Inc
Quantity:
10 000
Part Number:
AD6644ASTZ-65
Manufacturer:
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Quantity:
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AD6644
EQUIVALENT CIRCUITS
ENCODE
V
REF
AV
AIN
AIN
CURRENT
CC
MIRROR
AV
10kΩ
10kΩ
CC
Figure 23. Compensation Pin, C1 or C2
V
V
V
V
Figure 22. ENCODE/ ENCODE Inputs
AV
CH
CL
CH
CL
CC
Figure 21. Analog Input Stage
AV
AV
CC
CC
AV
CC
500Ω
500Ω
LOADS
LOADS
C1 OR C2
BUF
BUF
BUF
AV
CC
AV
CC
10kΩ
10kΩ
TH
TH
V
REF
AV
CC
ENCODE
Rev. D | Page 12 of 24
2.4V
CURRENT
CURRENT
MIRROR
MIRROR
DV
Figure 26. Digital Output Stage
CC
10kΩ
10kΩ
Figure 25. DMID Reference
Figure 24. 2.4 V Reference
100µA
V
REF
AV
CC
DV
DMID
DV
AV
CC
CC
CC
D0 TO D13,
OVR, DRY
V
REF