Datasheet

REV. 0–12–
ADuC831
ADC CODES
1.0
511 1023 1535 2047 2559
LSBs
0.6
0.2
–0.2
–0.6
–1.0
0.8
0.4
0
–0.4
–0.8
3071 35830 4095
AV
DD
/DV
DD
= 5V
f
S
= 152kHz
TPC 5. Typical DNL Error, V
DD
= 5 V
ADC CODES
1.0
511 1023 1535 2047 2559
LSBs
0.6
0.2
–0.2
–0.6
–1.0
0.8
0.4
0
–0.4
–0.8
3071 35830 4095
AV
DD
/DV
DD
= 3V
f
S
= 152kHz
TPC 6. Typical DNL Error, V
DD
= 3 V
EXTERNAL REFERENCE – V
–0.6
0.5
WCP–DNL – LSBs
1.0 2.0 2.5 5.0
–0.4
1.5
–0.2
0
0.2
0.4
0.6
WCN–DNL – LSBs
–0.4
–0.6
–0.2
0
0.2
0.4
0.6
AV
DD
/ DV
DD
= 5V
f
S
= 152kHz
WCP DNL
WCN DNL
TPC 7. Typical Worst Case DNL Error vs. V
REF
, V
DD
= 5 V
EXTERNAL REFERENCE – V
WCP–DNL – LSBs
0.7
0.5
0.1
–0.5
–0.7
0.3
–0.3
AV
DD
/DV
DD
= 3V
f
S
= 152kHz
0.5 1.0 1.5 2.0 2.5 3.0
WCN–DNL – LSBs
WCP DNL
WCN DNL
–0.1
0.7
0.5
0.1
–0.5
–0.7
0.3
–0.3
–0.1
TPC 8. Typical Worst Case DNL Error vs. V
REF,
V
DD
= 3 V
CODE
817 818 819 820 821
10000
OCCURRENCE
8000
6000
4000
2000
0
TPC 9. Code Histogram Plot, V
DD
= 5 V
CODE
10000
817 818 819 820 821
OCCURRENCE
8000
6000
4000
2000
0
9000
7000
5000
3000
1000
TPC 10. Code Histogram Plot, V
DD
= 3 V