Datasheet

AD9484
Rev. A | Page 10 of 24
TYPICAL PERFORMANCE CHARACTERISTICS
AVDD = 1.8 V, DRVDD = 1.8 V, rated sample rate, T
A
= 25°C, 1.5 V p-p differential input, AIN = −1 dBFS, unless otherwise noted.
–100
–80
–60
–40
–20
–10
–90
–70
–50
–30
0
0 20 40 60 80 100 120 140 160 180
AMPLITUDE (dBFS)
FREQUENCY (MHz)
500MSPS
30.3MHz AT –1.0dBFS
SNR: 46.0dB
ENOB: 7.5 BITS
200 220 240
SFDR: 82dBc
09615-106
Figure 4. 64k Point Single-Tone FFT; 500 MSPS, 30.3 MHz
–100
–80
–60
–40
–20
–10
–90
–70
–50
–30
0
0 20 40 60 80 100 120 140 160 180
AMPLITUDE (dBFS)
FREQUENCY (MHz)
500MSPS
100.3MHz AT –1.0dBFS
SNR: 46.0dB
ENOB: 7.5 BITS
200 220 240
SFDR: 83dBc
09615-107
Figure 5. 64k Point Single-Tone FFT; 500 MSPS, 100.3 MHz
–100
–80
–60
–40
–20
–10
–90
–70
–50
–30
0
0 20 40 60 80 100 120 140 160 180
AMPLITUDE (dBFS)
FREQUENCY (MHz)
500MSPS
140.3MHz AT –1.0dBFS
SNR: 46.0dB
ENOB: 7.5 BITS
200 220 240
SFDR: 82dBc
09615-108
Figure 6. 64k Point Single-Tone FFT; 500 MSPS, 140.3 MHz
–100
–80
–60
–40
–20
–10
–90
–70
–50
–30
0
0 20 40 60 80 100 120 140 160 180
AMPLITUDE (dBFS)
FREQUENCY (MHz)
500MSPS
270.3MHz AT –1.0dBFS
SNR: 46.0dB
ENOB: 7.5 BITS
200 220 240
SFDR: 79dBc
09615-109
Figure 7. 64k Point Single-Tone FFT; 500 MSPS, 270.3 MHz
–100
–80
–60
–40
–20
–10
–90
–70
–50
–30
0
0 20 40 60 80 100 120 140 160 180
AMPLITUDE (dBFS)
FREQUENCY (MHz)
200 220 240
09615-110
500MSPS
450.3MHz AT –1.0dBFS
SNR: 45.9dB
ENOB: 7.5 BITS
SFDR: 70dBc
Figure 8. 64k Point Single-Tone FFT; 500 MSPS, 450.3 MHz
55
50
45
40
60
65
70
75
80
85
0 100 200 300 400 500
SNR/SFDR (dB)
ANALOG INPUT FREQUECY (MHz)
SFDR (dBc), T A = –40°C
SFDR (dBc), T
A
=+85°C
SFDR (dBc), T
A
=+25°C
SNR (dBFS), T
A = –40°C
SNR (dBFS), T
A
= +25°C
SNR (dBFS), T
A
= +85°C
09615-111
Figure 9. Single-Tone SNR/SFDR vs. Input Frequency (f
IN
) and Temperature;
500 MSPS