TYPICAL PERFORMANCE CURVES
(Cont.)
At T
A
= +25°C, V
CC
= +2.7V, V
REF
= +2.5V, f
SAMPLE
= 75kHz, f
CLK
= 16 • f
SAMPLE
, unless otherwise specified.
SPURIOUS FREE DYNAMIC RANGE and
SIGNAL-TO-NOISE RATIO vs FREQUENCY
100
0
TOTAL HARMONIC DISTORTION vs FREQUENCY
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
Spurious Free Dynamic Range
and Signal-to-Noise Ratio (dB)
80
70
60
50
40
30
20
10
0
1
10
Frequency (kHz)
100
Signal-to-Noise Ratio
Total Harmonic Distortion (dB)
90
Spurious Free Dynamic Range
1
10
Frequency (kHz)
100
SIGNAL-TO-(NOISE + DISTORTION) vs FREQUENCY
100
Signal-to-(Noise + Distortion) (dB)
90
80
70
60
50
40
30
20
10
0
1
10
Frequency (kHz)
100
Signal-to-(Noise Ratio Plus Distortion) (dB)
80
70
60
50
40
30
20
10
0
–40
SIGNAL-TO-(NOISE + DISTORTION) vs INPUT LEVEL
–35
–30
–25
–20
–15
Input Level (dB)
–10
–5
0
REFERENCE CURRENT vs SAMPLE RATE
14
12
14
12
REFERENCE CURRENT vs TEMPERATURE
(Code = 710h)
Reference Current (µA)
10
8
6
4
2
0
0
15
30
45
60
75
Sample Rate (kHz)
Reference Current (µA)
10
8
6
4
2
–50
–25
0
25
50
75
100
Temperature (°C)
ADS7822
SBAS062A
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