AD9251BCPZ-20 Analog Devices Inc, AD9251BCPZ-20 Datasheet - Page 22
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AD9251BCPZ-20
Manufacturer Part Number
AD9251BCPZ-20
Description
14 BIT DUAL 20/ Msps Low Power ADC
Manufacturer
Analog Devices Inc
Datasheet
1.AD9251BCPZRL7-20.pdf
(36 pages)
Specifications of AD9251BCPZ-20
Number Of Bits
14
Sampling Rate (per Second)
20M
Data Interface
Serial, SPI™
Number Of Converters
2
Power Dissipation (max)
77mW
Voltage Supply Source
Analog and Digital
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
64-LFCSP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AD9251BCPZ-20
Manufacturer:
MICRON
Quantity:
1 156
AD9251
Single-Ended Input Configuration
A single-ended input can provide adequate performance in
cost-sensitive applications. In this configuration, SFDR and
distortion performance degrade due to the large input common-
mode swing. If the source impedances on each input are matched,
there should be little effect on SNR performance. Figure 43
shows a typical single-ended input configuration.
ANALOG INPUT
ANALOG INPUT
2V p-p
C
D
0.1µF
P
0.1µF
0.1µF
A
R
D
0Ω
0Ω
Figure 45. Differential Input Configuration Using the AD8352
Figure 44. Differential Double Balun Input Configuration
S
R
G
16
1
2
3
4
5
S
AD8352
V
P
CC
8, 13
14
0.1µF
Rev. A | Page 22 of 36
0.1µF
0.1µF
10
11
25Ω
25Ω
0.1µF
0.1µF
0.1µF
200Ω
200Ω
1V p-p
0.1µF
R
R
0.1µF
C
R
R
10µF
C
49.9Ω
Figure 43. Single-Ended Input Configuration
VIN+x
VIN–x
0.1µF
10µF
0.1µF
ADC
VIN+x
VIN–x
AVDD
1kΩ
1kΩ
1kΩ
1kΩ
VCM
AVDD
ADC
VCM
R
R
C
VIN+x
VIN–x
ADC