ADS7810
SBAS014A –MARCH 1992–REVISED SEPTEMBER 2010
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TYPICAL CHARACTERISTICS
At TA = +25°C, fS =800kHz, +VDIG = +VANA = +5V, –VANA = –5V, using internal reference and the 50Ω input resistors as shown
in Figure 16, unless otherwise specified.
FREQUENCY SPECTRUM
FREQUENCY SPECTRUM
(4096 Point FFT; fIN = 252kHz, –0.5dB)
(4096 Point FFT; fIN = 502kHz, –0.5dB)
0
-20
0
-20
-40
-40
-60
-60
-80
-80
-100
-120
-100
-120
0
100
200
300
400
0
100
200
300
400
Frequency (kHz)
Frequency (kHz)
Figure 3.
Figure 4.
FREQUENCY SPECTRUM
FREQUENCY SPECTRUM
(4096 Point FFT; fIN = 1002kHz, –0.5dB)
(4096 Point f1IN = 232kHz, –6.5dB; f2IN = 272kHz, –6.5dB)
0
-20
0
-20
-40
-40
-60
-60
-80
-80
-100
-120
-100
-120
0
100
200
300
400
0
100
200
300
400
Frequency (kHz)
Frequency (kHz)
Figure 5.
Figure 6.
SIGNAL-TO-(NOISE + DISTORTION)
vs INPUT FREQUENCY (fIN = –0.5dB)
AC PARAMETERS vs TEMPERATURE
(fIN = 250kHz, –0.5dB)
90
80
70
60
50
40
30
20
10
100
95
90
85
80
75
70
65
60
-100
-95
-90
-85
-80
-75
-70
-65
-60
SFDR
THD
SNR
SINAD
-50
-25
0
25
50
75
100
1k
10k
100k
1M
10M
Input Signal Frequency (Hz)
Temperature (°C)
Figure 7.
Figure 8.
8
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