AD9642 Analog Devices, AD9642 Datasheet - Page 12

• 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

AD9642
–100
–120
–140
–100
–120
–140
–100
–120
–140
–20
–40
–60
–80
–20
–40
–60
–80
–20
–40
–60
–80
Figure 17. AD9642-210 Single-Tone FFT with f
Figure 18. AD9642-210 Single-Tone FFT with f
Figure 16. AD9642-210 Single-Tone FFT with f
0
0
0
0
0
0
210MSPS
90.1MHz @ –1dBFS
SNR = 71.2dB (72.2dBFS)
SFDR = 92dBc
SECOND HARMONIC
15
15
15
SECOND HARMONIC
30
30
30
THIRD HARMONIC
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
45
45
45
THIRD HARMONIC
SECOND HARMONIC
60
60
60
210MSPS
185.1MHz @ –1dBFS
SNR = 70.5dB (71.5dBFS)
SFDR = 93dBc
210MSPS
220.1MHz @ –1dBFS
SNR = 70dB (71dBFS)
SFDR = 84dBc
THIRD HARMONIC
75
75
75
IN
IN
IN
= 185.1 MHz
= 220.1 MHz
= 90.1 MHz
90
90
90
105
105
105
Rev. 0 | Page 12 of 28
Figure 21. AD9642-210 Single-Tone SNR/SFDR vs. Input Frequency (f
Figure 20. AD9642-210 Single-Tone SNR/SFDR vs. Input Amplitude (A
–100
–120
–140
120
100
–20
–40
–60
–80
100
80
60
40
20
Figure 19. AD9642-210 Single-Tone FFT with f
–100
95
90
85
80
75
70
65
60
0
0
0
210MSPS
305.1MHz @ –1dBFS
SNR = 68.7dB (69.7dBFS)
SFDR = 83dBc
–90
SECOND HARMONIC
15
–80
with f
–70
SFDR (dBc)
30
INPUT AMPLITUDE (dBFS)
IN
= 90.1 MHz, f
SFDR (dBFS)
FREQUENCY (MHz)
FREQUENCY (MHz)
SNR (dBFS)
f
S
–60
= 210 MSPS
45
–50
SNR (dBFS)
SFDR (dBc)
THIRD HARMONIC
S
60
= 210 MSPS
–40
SNR (dBc)
–30
75
IN
–20
= 305.1 MHz
90
–10
1
0
05
IN
)
IN
),