AD9255 Analog Devices, AD9255 Datasheet - Page 19

• Manufacturer Part Number: AD9255
• Description: 14-Bit, 125 MSPS/105 MSPS/80 MSPS, 1.8 V Analog-to-Digital Converter
• Manufacturer: Analog Devices

Specifications of AD9255

• Resolution (bits): 14bit
• # Chan: 1
• Sample Rate: 125MSPS
• Interface: LVDS,Par,SPI
• Analog Input Type: Diff-Uni
• Ain Range: (2Vref) p-p,1 V p-p,2 V p-p
• Adc Architecture: Pipelined
• Pkg Type: CSP

–100
–120
–140
–100
–120
–140
–100
–120
–140
–20
–40
–60
–80
–20
–40
–60
–80
–20
–40
–60
–80
Figure 31. AD9255-125 Single-Tone FFT with f
Figure 32. AD9255-125 Single-Tone FFT with f
Figure 30. AD9255-125 Single-Tone FFT with f
0
0
0
0
0
0
125MSPS
70.1MHz @ –1dBFS
SNR = 77.3dB (78.3dBFS)
SFDR = 93.9dBc
HARMONIC
SECOND
HARMONIC
SECOND
10
10
10
HARMONIC
THIRD
20
20
20
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
HARMONIC
THIRD
30
30
30
HARMONIC
125MSPS
2.4MHz @ –1dBFS
SNR = 77.2dB (78.2dBFS)
SFDR = 88dBc
125MSPS
30.3MHz @ –1dBFS
SNR = 77.7dB (78.7dBFS)
SFDR = 95dBc
THIRD
40
40
40
IN
IN
IN
= 30.3 MHz
= 70.1 MHz
50
HARMONIC
50
50
= 2.4 MHz
SECOND
60
60
60
Rev. A | Page 19 of 44
–100
–120
–140
–100
–120
–140
–100
–120
–140
–20
–40
–60
–80
–20
–40
–60
–80
–20
–40
–60
–80
Figure 33. AD9255-125 Single-Tone FFT with f
Figure 34. AD9255-125 Single-Tone FFT with f
Figure 35. AD9255-125 Single-Tone FFT with f
0
0
0
0
0
0
125MSPS
200.3MHz @ –1dBFS
SNR = 74.5dB (75.5dBFS)
SFDR = 80.0dBc
125MSPS
220.1MHz @ –1dBFS
SNR = 74.2dB (75.2dBFS)
SFDR = 79.8dBc
10
10
10
HARMONIC
THIRD
20
20
20
HARMONIC
SECOND
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
HARMONIC
SECOND
30
30
30
HARMONIC
HARMONIC
THIRD
125MSPS
140.1MHz @ –1dBFS
SNR = 76.2dB (77.2dBFS)
SFDR = 88.9dBc
THIRD
40
40
40
IN
IN
IN
= 140.1 MHz
= 200.3 MHz
= 220.1 MHz
50
50
50
HARMONIC
SECOND
AD9255
60
60
60