Datasheet

ADS7813
5
SBAS043C
www.ti.com
TYPICAL PERFORMANCE CURVES
At T
A
= +25°C, f
S
= 40kHz, V
S
= +5V, ±10V input range, using internal reference, unless otherwise noted.
SNR AND SINAD vs TEMPERATURE
(f
IN
= 1kHz, 0dB)
Temperature (°C)
SNR and SINAD (dB)
92
91
90
89
88
87
86
–25–50 0 25 50 75 100
SINAD
SNR
SFDR AND THD vs TEMPERATURE
(f
IN
= 1kHz, 0dB)
Temperature (°C)
SFDR (dB)
THD (dB)
106
105
104
103
102
101
100
–106
–105
–104
–103
–102
–101
–100
–25–50 0 25 50 75 100
THD
SFDR
SIGNAL-TO-(NOISE + DISTORTION)
vs INPUT FREQUENCY (f
IN
= 0dB)
Input Signal Frequency (Hz)
SINAD (dB)
90
89
88
87
86
85
84
83
100 1k 10k 20k
FREQUENCY SPECTRUM
(8192 Point FFT; f
IN
= 980Hz, 0dB)
02051510
Frequency (kHz)
Amplitude (dB)
0
–20
–40
–60
–80
–100
–120
–140
FREQUENCY SPECTRUM
(8192 Point FFT; f
IN
= 9.8kHz, 0dB)
02051510
Frequency (kHz)
Amplitude (dB)
0
–20
–40
–60
–80
–100
–120
–140
INTERNAL REFERENCE VOLTAGE
vs TEMPERATURE
Temperature (°C)
Internal Reference (V)
2.515
2.510
2.505
2.500
2.495
2.490
2.485
–25–50 0 25 50 75 100