AD9201 Analog Devices, AD9201 Datasheet - Page 12
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AD9201
Manufacturer Part Number
AD9201
Description
Dual Channel 20 MHz 10-Bit Resolution CMOS ADC
Manufacturer
Analog Devices
Datasheet
1.AD9201.pdf
(20 pages)
Specifications of AD9201
Resolution (bits)
10bit
# Chan
2
Sample Rate
20MSPS
Interface
Par
Analog Input Type
Diff-Uni,SE-Uni
Ain Range
1 V p-p,2 V p-p
Adc Architecture
Pipelined
Pkg Type
SOP
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AD9201ARS
Manufacturer:
ADI/亚德诺
Quantity:
20 000
Part Number:
AD9201ARSZ
Manufacturer:
ADI/亚德诺
Quantity:
20 000
Company:
Part Number:
AD9201ARSZ-REEL
Manufacturer:
SIEMENS
Quantity:
3
AD9201
COMMON-MODE PERFORMANCE
Attention to the common-mode point of the analog input volt-
age can improve the performance of the AD9201. Figure 29
illustrates THD as a function of common-mode voltage (center
point of the analog input span) and power supply.
–30
–35
–40
–45
–50
–55
–60
–65
–70
–75
–80
–30
–35
–40
–45
–50
–55
–60
–65
–70
–75
–80
–0.5
–0.5
1V SPAN
a. Differential Input, 3 V Supplies
b. Differential Input, 5 V Supplies
0
0
COMMON-MODE LEVEL – V
COMMON-MODE LEVEL – V
Figure 29. THD vs. CML Input Span and Power Supply (Analog Input = 1 MHz)
0.5
0.5
1.0
1.5
1.0
2V SPAN
2V SPAN
2.0
1V SPAN
2.5
1.5
–12–
Inspection of the curves will yield the following conclusions:
1. An AD9201 running with AVDD = 5 V is the easiest to
2. Differential inputs are the most insensitive to common-mode
3. An AD9201 powered by AVDD = 3 V and a single ended
drive.
voltage.
input, should have a 1 V span with a common-mode voltage
of 0.75 V.
–60
–70
–60
–70
–10
–20
–30
–40
–50
–80
–10
–20
–30
–40
–50
–80
–0.5
–0.5
d. Single-Ended Input, 5 V Supplies
c. Single-Ended Input, 3 V Supplies
0
0
COMMON-MODE LEVEL – V
COMMON-MODE LEVEL – V
0.5
0.5
1.0
1.5
1.0
2V SPAN
2V SPAN
1V SPAN
1V SPAN
2.0
1.5
2.5
REV. D