WM2637
Production Data
TYPICAL PERFORMANCE GRAPHS
1
5V = VDD, VREF = External, 2.048V, Speed = Fast mode, Load = 10k/100pF
0.8
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1
0
256
512
767
1023
Digital Code
Figure 2 Integral Non-Linearity
0.4
0.4
0.35
0.3
VDD = 3V, VREF = 1V, Input Code = 0
VDD = 5V, VREF = 2V, Input Code = 0
0.35
0.3
0.25
0.2
0.25
0.2
0.15
0.1
0.15
0.1
0.05
0
0.05
0
0
1
2
3
4
5
6
7
8
9
10
Fast
0
1
2
3
4
5
6
7
8
9
10
ISINK - mA
ISINK- mA
Slow
Slow
Fast
Figure 3 Sink Current VDD = 3V
Figure 4 Sink Current VDD = 5V
2.06
4.1
VDD = 3V, VREF = 1V, Input Code = 4095
VDD = 5V, VREF = 2V, Input Code = 4095
2.055
2.05
4.095
4.09
2.045
2.04
4.085
4.08
2.035
2.03
4.075
4.07
2.025
2.02
4.065
4.06
0
1
2
3
4
5
6
7
8
9
10
11
Fast
0
1
2
3
4
5
6
7
8
9
10
Slow
11
Fast
ISOURCE- mA
ISOURCE - mA
Slow
Figure 5 Source Current VDD = 3V
Figure 6 Source Current VDD = 5V
WOLFSON MICROELECTRONICS LTD
PD Rev 1.0 July 99
6
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
