AD9642 Analog Devices, AD9642 Datasheet - Page 11

• Manufacturer Part Number: AD9642
• Description: 14-Bit, 170 MSPS/210 MSPS/250 MSPS, 1.8 V Analog-to-Digital Converter (ADC)
• Manufacturer: Analog Devices

Specifications of AD9642

• Resolution (bits): 14bit
• # Chan: 1
• Sample Rate: 250MSPS
• Interface: LVDS
• Analog Input Type: Diff-Bip,Diff-Uni
• Ain Range: 1.75 V p-p
• Adc Architecture: Pipelined
• Pkg Type: CSP

Figure 12. AD9642-170 Two-Tone FFT with f
Figure 10. AD9642-170 Two-Tone SFDR/IMD3 vs. Input Amplitude (A
Figure 11. AD9642-170 Two-Tone SFDR/IMD3 vs. Input Amplitude (A
–100
–120
–100
–120
–20
–40
–60
–80
–20
–40
–60
–80
–100
–120
–140
–20
–40
–60
–80
–90.0 –81.7 –73.4 –65.1 –56.8 –48.5 –40.2 –31.9 –23.6 –15.3 –7.0
–90.0 –81.7 –73.4 –65.1 –56.8 –48.5 –40.2 –31.9 –23.6 –15.3 –7.0
0
0
0
with f
0
170MSPS
89.12MHz @ –7dBFS
92.12MHz @ –7dBFS
SFDR = 88dBc (95dBFS)
f
IN1
IN1
10
= 89.12 MHz, f
= 184.12 MHz, f
IMD3 (dBc)
IMD3 (dBc)
20
SFDR (dBc)
INPUT AMPLITUDE (dBFS)
INPUT AMPLITUDE (dBFS)
SFDR (dBFS)
SFDR (dBFS)
IMD3 (dBFS)
IMD3 (dBFS)
30
SFDR (dBc)
FREQUENCY (MHz)
IN2
IN2
= 92.12 MHz, f
= 187.12 MHz, f
40
IN1
50
= 89.12 MHz, f
S
= 170 MSPS
60
S
= 170 MSPS
70
IN2
= 92.12 MHz
80
IN
) with
IN
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)
Figure 13. AD9642-170 Two Tone FFT with f
Figure 14. AD9642-170 Single-Tone SNR/SFDR vs. Sample Rate (f
Figure 15. AD9642-170 Grounded Input Histogram, f
–100
–120
–140
100
6000
5000
4000
3000
2000
1000
–20
–40
–60
–80
95
90
85
80
75
70
0
40
0
0
50
10
60
SFDR (dBFS)
70
20
80
SAMPLE RATE (MSPS)
with f
30
FREQUENCY (MHz)
90 100 110 120 130 140 150 160
OUTPUT CODE
IN
= 90 MHz
40
SNR (dBc)
IN1
170MSPS
184.12MHz @ –7dBFS
187.12MHz @ –7dBFS
SFDR = 87dBc (94dBFS)
50
= 184.12 MHz, f
0.830 LSB rms
16,384 TOTAL HITS
60
70
S
= 170 MSPS
IN2
AD9642
= 187.12 MHz
80
170
S
)