ADS8402 Datasheet, PDF (13/25 Pages) Burr-Brown (TI) – 16-BIT, 1.25 MSPS, UNIPOLAR DIFFERENTIAL INPUT, MICRO POWER SAMPLING ANALOG-TO-DIGITAL CONVERTER WITH PARALLEL INTERFACE AND REFERENCE

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ADS8402
SLAS154B – DECEMBER 2002 – REVISED MAY 2003
TYPICAL CHARACTERISTICS^†
120000
100000
HISTOGRAM (DC Code Spread)
NEAR POSITIVE FULL SCALE
196608 CONVERSIONS
+VA = 5 V,
Code = 61383
80000
60000
40000
20000
0
Figure 6
SIGNAL-TO-NOISE RATIO
vs
FREE-AIR TEMPERATURE
90.9
fi = 50 kHz
(+IN– –IN) = Full Scale
90.8
90.7
90.6
90.5
90.4
90.3
–40 –25 –10 5 20 35 50 65 80
TA – Free-Air Temperature – °C
Figure 7
SIGNAL-TO-NOISE PLUS DISTORTION
vs
FREE-AIR TEMPERATURE
90.4
fi = 50 kHz
(+IN– –IN) = Full Scale
90.2
90
89.8
89.6
89.4
89.2
89
–40 –25 –10 5 20 35 50 65 80
TA – Free-Air Temperature – °C
Figure 8
SPURIOUS FREE-DYNAMIC RANGE
vs
FREE-AIR TEMPERATURE
102
fi = 50 kHz
(+IN– –IN) = Full Scale
101
100
99
98
97
96
95
94
–40 –20
0
20
40
60
80
TA – Free-Air Temperature – °C
Figure 9
† _{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)}
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