Texas Instruments ADS869 Series Manual page 12

ADS8694, ADS8698
SBAS686 – JULY 2015
Typical Characteristics (continued)
At T = 25°C, AVDD = 5 V, DVDD = 3 V, internal reference V
A
24000
18000
12000
6000
0
131059 131063 131067 131071 131075 131079 131083
Mean = 131072.3, sigma = 2.76, input = 0 V,
range = ±0.625 × V
Figure 8. DC Histogram for Mid-Scale Inputs (±0.625 × V
20000
16000
12000
8000
4000
0
131058 131063 131068
Mean = 131072.3, sigma = 2.71, input = 0.625 × V
range = 1.25 × V
Figure 10. DC Histogram for Mid-Scale Inputs
1.4
1
0.6
0.2
-0.2
-0.6
-1
±40 ±7
Free-Air Temperature (
All input ranges
Figure 12. DNL vs Temperature
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Output Codes
REF
131073 131078 131083
Output Codes
,
REF
REF
(1.25 × V )
REF
Maximum
Minimum
26 59 92
o C)
Product Folder Links:
= 4.096 V, and f
REF SAMPLE
24000
18000
12000
6000
0
131060 131064
C009
Mean = 131072.3, sigma = 2.42, input = 1.25 × V
) Figure 9. DC Histogram for Mid-Scale Inputs (2.5 × V
REF
1.4
1
0.6
0.2
-0.2
-0.6
-1
0 65536
C011
Figure 11. Typical DNL for All Codes
2
1
0
-1
-2
0 65536
125
C013
Figure 13. Typical INL for All Codes
ADS8694 ADS8698
= 500 kSPS, unless otherwise noted.
131068 131072 131076
Output Codes
range = 2.5 × V
REF
131072 196608
Codes (LSB)
All input ranges
131072 196608
Codes (LSB)
Range = ±2.5 × V
REF
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131080
C010
,
REF
)
REF
262144
C012
262144
C014