ISL267440 Datasheet, PDF (9/17 Pages) Intersil Corporation – 10-Bit and 12-Bit, 1MSPS SAR ADCs

ISL267440, ISL267450A
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 ISL267450A FOR
V_DD = 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 ISL267450A FOR
V_DD = 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 ISL267450A FOR
V_DD = 3V
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 V_DD = 5V AND 3V FOR THE ISL267450A
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 ISL267450A FOR
V_DD = 5V
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
V_DD = 5V AND 3V FOR THE ISL267450A
9
FN7708.0
December 5, 2011