AD6645 Analog Devices, AD6645 Datasheet - Page 14

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AD6645

Manufacturer Part Number
AD6645
Description
14-Bit, 80 MSPS/105 MSPS A/D Converter
Manufacturer
Analog Devices
Datasheet

Specifications of AD6645

Resolution (bits)
14bit
# Chan
1
Sample Rate
105MSPS
Interface
Par
Analog Input Type
Diff-Uni
Ain Range
2.2 V p-p
Adc Architecture
Pipelined
Pkg Type
QFP

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AD6645
EQUIVALENT CIRCUITS
ENCODE
V
REF
AIN
AIN
AV
CURRENT
CC
MIRROR
AV
10kΩ
10kΩ
CC
Figure 34. Compensation Pin, C1 or C2
V
V
V
V
CH
CL
CH
CL
AV
Figure 32. Analog Input Stage
CC
AV
AV
Figure 33. Encode Inputs
CC
CC
AV
CC
500Ω
500Ω
LOADS
LOADS
C1, C2
BUF
BUF
BUF
AV
CC
AV
CC
10kΩ
10kΩ
T/H
T/H
VREF
AV
CC
ENCODE
Rev. D | Page 14 of 24
2.4V
CURRENT
CURRENT
MIRROR
MIRROR
DV
Figure 35. Digital Output Stage
CC
10kΩ
10kΩ
Figure 37. DMID Reference
Figure 36. 2.4 V Reference
100µA
V
REF
AV
CC
DV
DMID
DV
AV
CC
CC
CC
D0 TO D13,
OVR, DRY
VREF

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