AD9255 Analog Devices, AD9255 Datasheet - Page 18

• 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

AD9255
Figure 24. AD9255-105 Single-Tone SNR/SFDR vs. Input Amplitude (A
Figure 26. AD9255-105 Single-Tone SNR/SFDR vs. Sample Rate (f
100
105
100
120
110
100
Input Frequency (f
95
90
85
80
75
70
65
95
90
85
80
75
90
80
70
–100
25
0
SNR @ –40°C
Figure 25. AD9255-105 Single-Tone SNR/SFDR vs.
30
f
–90
IN
SNR @ +25°C
35
= 30 MHz with and without Dither Enabled
50
40
SFDR @ –40°C
–80
45
IN
–70
) and Temperature with 2 V p-p Full Scale
INPUT FREQUENCY (MHz)
50
INPUT AMPLITUDE (dBFS)
100
with f
SAMPLE RATE (MSPS)
SNRFS (DITHER OFF)
SNRFS (DITHER ON)
SNR @ +85°C
55
SFDRFS (DITHER OFF)
–60
IN
60
= 70.1 MHz
150
–50
65
SFDR
SNR
70
–40
SFDR @ +85°C
75
SFDRFS (DITHER ON)
SFDR @ +25°C
200
80
–30
85
–20
90
250
95
–10
100
300
105
0
IN
S
)
) with
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–0.25
–0.50
1.4M
1.2M
1.0M
800k
600k
400k
200k
–0.2
–0.4
–0.6
–0.8
–1.0
0.50
0.25
1.0
0.8
0.6
0.4
0.2
0
0
0
0
0
Figure 27. AD9255-105 Grounded Input Histogram
N – 3
Figure 29. AD9255-105 DNL with f
Figure 28. AD9255-105 INL with f
2000
2000
INL WITHOUT DITHER
INL WITH DITHER
N – 2
4000
4000
N – 1
6000
6000
OUTPUT CODE
OUTPUT CODE
OUTPUT CODE
8000
8000
N
10,000
10,000
N + 1
IN
IN
= 12.5 MHz
12,000
12,000
= 12.5 MHz
N + 2
0.63 LSB RMS
14,000
14,000
N + 3
16,000
16,000