AD9644 Analog Devices, AD9644 Datasheet - Page 16

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AD9644

Manufacturer Part Number
AD9644
Description
14-Bit, 80 MSPS/155 MSPS, 1.8V Dual, Serial Output A/D Converter
Manufacturer
Analog Devices
Datasheet

Specifications of AD9644

Resolution (bits)
14bit
# Chan
2
Sample Rate
155MSPS
Analog Input Type
Diff-Bip
Ain Range
1.75 V p-p
Adc Architecture
Pipelined
AD9644
–100
–120
–140
–100
–120
–140
–100
–120
–140
–20
–40
–60
–80
–20
–40
–60
–80
–20
–40
–60
–80
Figure 23. AD9644-155 Single-Tone FFT with f
Figure 24. AD9644-155 Single-Tone FFT with f
Figure 25. AD9644-155 Single-Tone FFT with f
0
0
0
0
0
0
155MSPS
70.1MHz @ –1dBFS
SNR = 70.7dB (71.7dBFS)
SFDR = 92dBc
7.75 15.50 23.25 31.00 38.75 46.50 54.25 62.00 69.75 77.50
7.75 15.50 23.25 31.00 38.75 46.50 54.25 62.00 69.75 77.50
7.75 15.50 23.25 31.00 38.75 46.50 54.25 62.00 69.75 77.50
THIRD HARMONIC
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
HARMONIC
155MSPS
10.1MHz @ –1dBFS
SNR = 70.9dB (71.9dBFS)
SFDR = 94dBc
155MSPS
30.1MHz @ –1dBFS
SNR = 70.8dB (71.8dBFS)
SFDR = 93dBc
SECOND
IN
IN
IN
= 10.1 MHz
= 30.1 MHz
= 70.1 MHz
HARMONIC
THIRD
Rev. C | Page 16 of 44
–100
–120
–140
–100
–120
–140
–100
–120
–140
–20
–40
–60
–80
–20
–40
–60
–80
–20
–40
–60
–80
Figure 26. AD9644-155 Single-Tone FFT with f
Figure 27. AD9644-155 Single-Tone FFT with f
Figure 28. AD9644-155 Single-Tone FFT with f
0
0
0
0
0
0
155MSPS
220.1MHz @ –1dBFS
SNR = 70.0dB (71.0dBFS)
SFDR = 90dBc
7.75 15.50 23.25 31.00 38.75 46.50 54.25 62.00 69.75 77.50
7.75 15.50 23.25 31.00 38.75 46.50 54.25 62.00 69.75 77.50
7.75 15.50 23.25 31.00 38.75 46.50 54.25 62.00 69.75 77.50
SECOND HARMONIC
THIRD HARMONIC
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
THIRD HARMONIC
155MSPS
140.1MHz @ –1dBFS
SNR = 70.5dB (71.5dBFS)
SFDR = 92dBc
155MSPS
180.1MHz @ –1dBFS
SNR = 70.4dB (71.4dBFS)
SFDR = 92dBc
THIRD HARMONIC
IN
IN
IN
Data Sheet
= 140.1 MHz
= 180.1 MHz
= 220.1 MHz

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