MCP3004/3008
Note: Unless otherwise indicated, VDD = VREF = 5V, fCLK = 18* fSAMPLE, TA = 25°C.
1.0
0.8
1.0
0.8
VDD = VREF = 5 V
fSAMPLE = 200 ksps
VDD = VREF = 2.7 V
fSAMPLE = 75 ksps
0.6
0.6
0.4
0.4
0.2
0.2
0.0
0.0
-0.2
-0.4
-0.6
-0.8
-1.0
-0.2
-0.4
-0.6
-0.8
-1.0
0
128
256
384
512
640
768
896
1024
0
128
256
384
512
640
768
896
1024
Digital Code
Digital Code
FIGURE 2-13: Differential Nonlinearity (DNL)
FIGURE 2-16: Differential Nonlinearity (DNL)
vs. Code (Representative Part).
vs. Code (Representative Part, VDD = 2.7V).
0.6
0.6
VDD = VREF = 2.7 V
fSAMPLE = 75 ksps
0.4
0.2
0.4
Positive DNL
Positive DNL
Negative DNL
0.2
0.0
0.0
-0.2
-0.4
-0.6
-0.2
Negative DNL
-0.4
-0.6
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature (°C)
Temperature (°C)
FIGURE 2-14: Differential Nonlinearity (DNL)
FIGURE 2-17: Differential Nonlinearity (DNL)
vs. Temperature.
vs. Temperature (VDD = 2.7V).
2.0
8
7
6
1.5
VDD = 2.7 V
1.0
0.5
fSAMPLE = 75 ksps
VDD = 5 V
5
fSAMPLE = 200 ksps
0.0
4
3
2
1
0
-0.5
-1.0
-1.5
-2.0
VDD = 2.7 V
VDD = 5 V
fSAMPLE = 75 ksps
fSAMPLE = 200 ksps
0
1
2
3
4
5
0
1
2
3
4
5
VREF(V)
VREF (V)
FIGURE 2-15: Gain Error vs. VREF
.
FIGURE 2-18: Offset Error vs. VREF.
DS21295C-page 8
© 2007 Microchip Technology Inc.
MICROCHIP [ MICROCHIP ]
