AD9268 Analog Devices, AD9268 Datasheet - Page 18

• 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 14. AD9268-80 Single-Tone SNR/SFDR vs. Input Amplitude (A
Figure 15. AD9268-80 Single-Tone SNR/SFDR vs. Input Frequency (f
Figure 16. AD9268-80 Single-Tone SNR/SFDR vs. Sample Rate (f
100
105
100
120
110
100
95
90
85
80
75
70
65
95
90
85
80
75
90
80
70
–100 –90
0
25
f
30
IN
SNRFS (DITHER ON)
SNRFS (DITHER OFF)
SFDRFS (DITHER ON)
SFDRFS (DITHER OFF)
= 30 MHz with and without Dither Enabled
50
35
–80
40
–70
with 2 V p-p Full Scale
INPUT FREQUENCY (MHz)
INPUT AMPLITUDE (dBFS)
100
with f
SAMPLE RATE (MSPS)
45
–60
IN
= 70.1 MHz
50
150
–50
55
–40
60
200
SNR, CHANNEL B
SFDR, CHANNEL B
SNR, CHANNEL A
SFDR, CHANNEL A
–30
65
SNR @ –40°C
SFDR @ –40°C
SNR @ +25°C
SFDR @ +25°C
SNR @ +85°C
SFDR @ +85°C
–20
250
70
–10
75
300
80
0
IN
S
) with
)
IN
)
Rev. A | Page 18 of 44
200,000
180,000
160,000
140,000
120,000
100,000
80,000
60,000
40,000
20,000
–0.25
–0.50
–0.75
–1.00
1.00
0.75
0.50
0.25
–2
–4
4
2
0
0
0
0
0
Figure 17. AD9268-80 Grounded Input Histogram
Figure 19. AD9268-80 DNL with f
Figure 18. AD9268-80 INL with f
10,000
10,000
20,000
20,000
OUTPUT CODE
OUTPUT CODE
30,000
OUTPUT CODE
30,000
40,000
40,000
DITHER ENABLED
DITHER DISABLED
IN
IN
= 9.7 MHz
= 9.7 MHz
50,000
50,000
2.17 LSB rms
60,000
60,000