ADS8402 Datasheet, PDF (14/25 Pages) Burr-Brown (TI) – 16-BIT, 1.25 MSPS, UNIPOLAR DIFFERENTIAL INPUT, MICRO POWER SAMPLING ANALOG-TO-DIGITAL CONVERTER WITH PARALLEL INTERFACE AND REFERENCE

ADS8402
SLAS154B – DECEMBER 2002 – REVISED MAY 2003
TOTAL HARMONIC DISTORTION
vs
FREE-AIR TEMPERATURE
–94
–95
–96
–97
–98
–99
–100
–101
fi = 50 kHz
(+IN– –IN) = Full Scale
–102
–40 –25 –10 5 20 35 50 65 80
TA – Free-Air Temperature – °C
Figure 10
SIGNAL-TO-NOISE PLUS DISTORTION
vs
INPUT FREQUENCY
91.5
TA = 25°C
(+IN– –IN) = Full Scale
91
90.5
90
89.5
89
88.5
0
20
40
60
80
100
fi – Input Frequency – kHz
Figure 12
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92
91.8
91.6
91.4
91.2
91
90.8
90.6
90.4
90.2
90
89.8
0
SIGNAL-TO-NOISE RATIO
vs
INPUT FREQUENCY
TA = 25°C
(+IN– –IN) = Full Scale
20
40
60
80
100
fi – Input Frequency – kHz
Figure 11
14.9
14.85
14.8
14.75
14.7
14.65
14.6
14.55
14.5
14.45
14.4
0
ENOB
vs
INPUT FREQUENCY
Vref = 4.096 V
20
40
60
80
100
fi – Input Frequency – kHz
Figure 13
† _{At –40°C to 85°C, +VA = 5 V, +VBD = 5 V, REFIN = 4.096 V (internal reference used) and fsample = 1.25 MHz (unless otherwise noted)}
14