Datasheet AD9224 (Analog Devices) - 7

AD9224
80 90 70
80
SFDR
70 50
THD – dB SNR/SFDR 60 40
SNR 60 30
50
20
40
10
0
–0.5 –20
–40
INPUT AMPLITUDE 30
10 –60 Figure 8. SNR/SFDR vs. AIN (Input Amplitude) (fIN = 20 MHz,
Input Span = 4.0 V p-p, VCM = 2.5 V Differential Input) 20 30
40
SAMPLE RATE – MHz 50 60 Figure 11. THD vs. Sample Rate (AIN = –0.5 dB, VCM = 2.5 V
Input Span = 4.0 V p-p, VCM = 2.5 V Differential Input) 90 90 80 THD 80
SNR 70 70
SNR
60 THD +SNR/–THD +SNR/–THD 60
50
40 40 30 30 20 20 10 10 0
0.5 5 10
15
20
INPUT FREQUENCY 25 0
0.5 30 Figure 9. +SNR/–THD vs. Input Frequency (Input Span =
4.0 V p-p, VCM = 2.5 V Single-Ended Input) HITS 2857 2093 N–1 N
BIN 5 10 15 20 25 30 35 40 45 50
INPUT FREQUENCY 55 60 65 70 Figure 12. +SNR/–THD vs. Input Frequency (FS = 32 MHz,
Input Span = 4.0 V p-p, VCM = 2.5 V Differential Input) 167819 N+1 Figure 10.␣ “Grounded-Input” Histogram (Input Span =
2 V p-p) REV. A 50 –7–