ADS7812 Datasheet, PDF (5/25 Pages) Burr-Brown (TI) – Low-Power, Serial 12-Bit Sampling ANALOG-TO-DIGITAL CONVERTER

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
–40
–60
–80
–100
–120
0
5
10
15
20
Frequency (kHz)
FREQUENCY SPECTRUM
(8192 Point FFT; f_IN = 9.8kHz, 0dB)
0
–20
–40
–60
–80
–100
–120
0
5
10
15
20
Frequency (kHz)
SNR AND SINAD vs TEMPERATURE
(f_IN = 1kHz, 0dB)
77
76
75
74
73
SNR and SINAD
72
71
–50
–25
0
25
50
Temperature (°C)
75
100
100
99
98
97
96
95
94
–50
SFDR AND THD vs TEMPERATURE
(f_IN = 1kHz, 0dB)
SFDR
THD
–25
0
25
50
75
Temperature (°C)
–100
–99
–98
–97
–96
–95
–94
100
74.0
73.8
73.6
73.4
73.2
73.0
100
SIGNAL-TO-(NOISE + DISTORTION)
vs INPUT FREQUENCY (f_IN = 0dB)
1k
Input Signal Frequency (Hz)
10k 20k
2.515
INTERNAL REFERENCE VOLTAGE
vs TEMPERATURE
2.510
2.505
2.500
2.495
2.490
2.485
–50
–25
0
25
50
Temperature (°C)
75
100
ADS7812
5
SBAS042A
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