ISL26712_14 Datasheet, PDF (10/21 Pages) Intersil Corporation – 12-Bit, 10-Bit and 8-Bit, 1MSPS SAR ADCs

ISL26712, ISL26710, ISL26708
Typical Performance Characteristics (Continued)
3.0
2.5
2.5
2.0
1.5
1.0
POS DNL
0.5
0.0
NEG DNL
-0.5
2.0
1.5
1.0
POS INL
0.5
0.0
NEG INL
-0.5
-1.0
-1.5
-1.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
V_REF (V)
FIGURE 11. CHANGE IN DNL vs VREF FOR THE ISL26712 FOR
VDD = 5V
-2.0
0.0
0.5
1.0
1.5
2.0
2.5
V_REF (V)
FIGURE 12. CHANGE IN INL vs VREF FOR THE ISL26712 FOR
VDD = 3V
2.5
2.0
1.5
1.0
POS DNL
0.5
0.0
NEG DNL
-0.5
-1.0
0.0
0.5
1.0
1.5
2.0
2.5
V_REF (V)
FIGURE 13. CHANGE IN DNL vs VREF FOR THE ISL26712 FOR
VDD = 3V
5
4
3
2
POS INL
1
0
-1
NEG INL
-2
-3
-4
-5
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
V_REF (V)
FIGURE 15. CHANGE IN INL vs VREF FOR THE ISL26712 FOR
VDD = 5V
6
5
4
3
2
3V V_DD
1
0
-1
5V V_DD
-2
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
V_REF (V)
FIGURE 14. CHANGE IN OFFSET ERROR vs REFERENCE VOLTAGE FOR
VDD = 5V AND 3V FOR THE ISL26712
12.0
11.5
11.0
10.5
3V V_DD
5V V_DD
10.0
9.5
9.0
8.5
8.0
7.5
7.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
V_REF (V)
FIGURE 16. CHANGE IN ENOB vs REFERENCE VOLTAGE FOR
VDD = 5V AND 3V FOR THE ISL26712
10
FN7999.3
September 5, 2012