ADS8353 Datasheet, PDF (18/71 Pages) Texas Instruments – Simultaneous-Sampling, Analog-to-Digital Converters

ADS8353, ADS7853, ADS7253
SBAS584B – OCTOBER 2013 – REVISED AUGUST 2014
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Typical Characteristics: ADS7853 (continued)
At T_A = 25°C, AVDD = 5 V, DVDD = 3.3 V, V_REF = 2.5 V (internal), and f_DATA = 1 MSPS, unless otherwise noted.
85
84
84.5
83.5
84
83
83.5
83
82.5
82.5
82
82
81.5
81.5
81
81
80.5
80.5
80
2
2.5
3
3.5
4
4.5
5
5.5
Reference Voltage (V)
C105
f_IN = 2 kHz
80
2
2.5
3
3.5
4
4.5
5
5.5
Reference Voltage (V)
C106
f_IN = 2 kHz
Figure 30. SNR vs Reference Voltage
85
Figure 31. SINAD vs Reference Voltage
85
84.5
84.5
84
84
83.5
83.5
83
83
82.5
82.5
82
82
81.5
81.5
81
0
50
V_REF = 5 V
100
150
200
250
300
Input Frequency (kHz)
C107
81
0
50
V_REF = 5 V
100
150
200
250
300
Input Frequency (kHz)
C108
Figure 32. SNR vs Input Frequency
±60
Figure 33. SINAD vs Input Frequency
±60
±70
±70
±80
±90
±100
16 CLK Mode
32 CLK Mode
±80
±90
±100
16 CLK Mode
32 CLK Mode
±110
±110
±120
±40
±7
26
59
92
125
Free-Air Temperature (^oC)
C109
f_IN = 2 kHz
Figure 34. THD vs Temperature
±120
2
2.5
3
3.5
4
4.5
5
5.5
Reference Voltage (V)
C111
f_IN = 2 kHz
Figure 35. THD vs Reference Voltage
18
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