AD9643_17 Datasheet, PDF (18/36 Pages) Analog Devices – 14-Bit, 170 MSPS/210 MSPS/250 MSPS, 1.8 V Dual Analog-to-Digital Converter (ADC)

AD9643
0
210MSPS
185.1MHz @ –1dBFS
–20
SNR = 70.3dB (71.3dBFS)
SFDR = 86dBc
–40
–60
SECOND HARMONIC
THIRD HARMONIC
–80
–100
–120
–140
0 10 20 30 40 50 60 70 80 90 100
FREQUENCY (MHz)
Figure 18. AD9643-210 Single-Tone FFT with fIN = 185.1 MHz
0
210MSPS
305.1MHz @ –1dBFS
–20 _{SNR = 67.3dB (68.3dBFS)}
SFDR = 75dBc
–40
THIRD HARMONIC
–60
SECOND HARMONIC
–80
–100
–120
–140
0
10 20 30 40 50 60 70 80 90 100
FREQUENCY (MHz)
Figure 19. AD9643-210 Single-Tone FFT with fIN = 305.1 MHz
120
SFDR (dBFS)
100
80
SNR (dBFS)
60
SFDR (dBc)
40
SNR (dBc)
20
0
–100 –90 –80 –70 –60 –50 –40 –30 –20 –10 0
INPUT AMPLITUDE (dBFS)
Figure 20. AD9643-210 Single-Tone SNR/SFDR vs. Input Amplitude (AIN)
with fIN = 90.1 MHz
Data Sheet
100
95
SFDR (dBc)
90
85
80
75
SNR (dBFS)
70
65
60
60
90 120 150 180 210 240 270 300 330 360 390
FREQUENCY (MHz)
Figure 21. AD9643-210 Single-Tone SNR/SFDR vs. Input Frequency (fIN)
0
–20
SFDR (dBc)
–40
IMD3 (dBc)
–60
–80
SFDR (dBFS)
–100
IMD3 (dBFS)
–120
–90.0 –78.5 –67.0 –55.5 –44.0 –32.5 –21.0 –7.0
INPUT AMPLITUDE (dBFS)
Figure 22. AD9643-210 Two-Tone SFDR/IMD3 vs. Input Amplitude (AIN)
with fIN1 = 89.12, fIN2 = 92.12 MHz, fS = 210 MSPS
0
–20
SFDR (dBc)
–40
IMD3 (dBc)
–60
–80
–100
SFDR (dBFS)
–120
IMD3 (dBFS)
–90.0 –78.5 –67.0 –55.5 –44.0 –32.5 –21.0 –7.0
INPUT AMPLITUDE (dBFS)
Figure 23. AD9643-210 Two-Tone SFDR/IMD3 vs. Input Amplitude (AIN)
with fIN1 = 184.12, fIN2 = 187.12 MHz, fS = 210 MSPS
Rev. E | Page 18 of 36