TYPICAL PERFORMANCE CURVES
At T
A
= +25°C, f
S
= 40kHz, V
S
= +5V,
±10V
input range, using internal reference, unless otherwise noted.
FREQUENCY SPECTRUM
(8192 Point FFT; f
IN
= 980Hz, 0dB)
0
–20
FREQUENCY SPECTRUM
(8192 Point FFT; f
IN
= 9.8kHz, 0dB)
0
–20
–40
–60
–80
–100
–120
Amplitude (dB)
–60
–80
–100
–120
0
5
10
Frequency (kHz)
15
20
Amplitude (dB)
–40
0
5
10
Frequency (kHz)
15
20
SNR AND SINAD vs TEMPERATURE
(f
IN
= 1kHz, 0dB)
77
76
100
99
98
SFDR AND THD vs TEMPERATURE
(f
IN
= 1kHz, 0dB)
–100
–99
–98
–97
–96
THD
–95
–94
–50
–25
0
25
50
75
100
Temperature (°C)
SNR and SINAD (dB)
SFDR
75
SFDR (dB)
74
73
72
71
–50
–25
0
25
50
75
100
Temperature (°C)
SNR and SINAD
97
96
95
94
SIGNAL-TO-(NOISE + DISTORTION)
vs INPUT FREQUENCY (f
IN
= 0dB)
74.0
2.515
2.510
INTERNAL REFERENCE VOLTAGE
vs TEMPERATURE
73.8
Internal Reference (V)
SINAD (dB)
2.505
2.500
2.495
2.490
2.485
73.6
73.4
73.2
73.0
100
1k
Input Signal Frequency (Hz)
10k
20k
–50
–25
0
25
50
75
100
Temperature (°C)
5
ADS7812
THD (dB)
®
BURR-BROWN [ BURR-BROWN CORPORATION ]
