AD9268 Analog Devices, AD9268 Datasheet - Page 24

• Manufacturer Part Number: AD9268
• Description: 16-Bit, 125 MSPS/105 MSPS/80 MSPS, 1.8 V Dual Analog-to-Digital Converter
• Manufacturer: Analog Devices

Specifications of AD9268

• Resolution (bits): 16bit
• # Chan: 2
• Sample Rate: 125MSPS
• Interface: Par
• Analog Input Type: Diff-Uni
• Ain Range: (2Vref) p-p,1 V p-p,2 V p-p
• Adc Architecture: Pipelined
• Pkg Type: CSP

AD9268
Figure 50. AD9268-125 Single-Tone SNR/SFDR vs. Sample Rate (f
100
–2
–4
3500
3000
2500
2000
1500
1000
95
90
85
80
75
500
4
2
0
0
25
0
SNR (dBFS), CHANNEL A
SNR (dBFS), CHANNEL B
Figure 51. AD9268-125 Grounded Input Histogram
35
Figure 52. AD9268-125 INL with f
45
16,384
SFDR (dBc), CHANNEL A
55
with f
SAMPLE RATE (MSPS)
SFDR (dBc), CHANNEL B
OUTPUT CODE
65
OUTPUT CODE
IN
32,768
= 70.1 MHz
75
85
DITHER ENABLED
DITHER DISABLED
IN
95
49,152
= 9.7 MHz
105
2.27LSB rms
115
65,536
125
S
)
Rev. A | Page 24 of 44
–0.25
–0.50
–0.75
–1.00
1.00
0.75
0.50
0.25
100
90
80
70
60
50
40
30
0.75
0
0
Figure 54. SNR/SFDR vs. Input Common Mode (VCM)
0.80
Figure 53. AD9268-125 DNL with f
0.85
INPUT COMMON-MODE VOLTAGE (V)
16,384
0.90
with f
OUTPUT CODE
SFDR (dBc)
SNR (dBFS)
0.95
IN
32,768
= 30 MHz
1.00
1.05
IN
= 9.7 MHz
49,152
1.10
1.15
65,536
1.20