AD9255 Analog Devices, AD9255 Datasheet - Page 17

• 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 20. AD9255-105 Single-Tone FFT with f
Figure 19. AD9255-105 Single-Tone FFT with f
Figure 18. AD9255-105 Single-Tone FFT with f
0
0
0
0
0
0
105MSPS
70.1MHz @ –1dBFS
SNR = 77.4dB (78.4dBFS)
SFDR = 88.7dBc
105MSPS
140.1MHz @ –1dBFS
SNR = 76.7dB (77.7dBFS)
SFDR = 86.4dBc
HARMONIC
HARMONIC
HARMONIC
THIRD
SECOND
THIRD
10
10
10
HARMONIC
THIRD
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
20
20
20
HARMONIC
SECOND
30
30
30
105MSPS
2.4MHz @ –1dBFS
SNR = 77.9dB (78.9dBFS)
SFDR = 91dBc
HARMONIC
SECOND
IN
40
40
IN
40
IN
= 140.1 MHz
= 70.1 MHz
= 2.4 MHz
50
50
50
Rev. A | Page 17 of 44
Figure 23. AD9255-105 Single-Tone SNR/SFDR vs. Input Amplitude (A
Figure 22. AD9255-105 Single-Tone FFT with f
–100
–120
–140
–100
–120
–140
120
100
–20
–40
–60
–80
–20
–40
–60
–80
Figure 21. AD9255-105 Single-Tone FFT with f
80
60
40
20
–100
0
0
0
0
0
105MSPS
70.1MHz @ –6dBFS
SNR = 72.9dB (78.9dBFS)
SFDR = 91dBc
HARMONIC
THIRD
–90
SNR (dBFS)
–80
10
10
SFDR (dBc)
HARMONIC
SECOND
–70
INPUT AMPLITUDE (dBFS)
Dither Enabled
f
IN
FREQUENCY (MHz)
FREQUENCY (MHz)
20
20
–60
= 98.12 MHz
SFDR (dBFS)
–50
HARMONIC
30
30
SNR (dBc)
–40
105MSPS
200.3MHz @ –1dBFS
SNR = 75.4dB (76.4dBFS)
SFDR = 81.6dBc
THIRD
IN
= 70.1 MHz @ −6 dBFS with
–30
HARMONIC
SECOND
IN
40
40
= 200.3 MHz
–20
–10
AD9255
50
50
0
IN
) with