MCP3008-I 查看數據表（PDF） - Microchip Technology
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MCP3008-I
Microchip Technology
MCP3008-I Datasheet PDF : 40 Pages
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MCP3004/3008
Note: Unless otherwise indicated, VDD = VREF = 5V, fCLK = 18* fSAMPLE, TA = +25°C.
1.0
0.8
VDD = VREF = 5 V
fSAMPLE = 200 ksps
0.6
0.4
0.2
0.0
-0.2
-0.4
-0.6
-0.8
-1.0
0
128 256 384 512 640 768 896 1024
Digital Code
FIGURE 2-13:
Differential Nonlinearity
(DNL) vs. Code (Representative Part).
1.0
0.8
VDD = VREF = 2.7 V
fSAMPLE = 75 ksps
0.6
0.4
0.2
0.0
-0.2
-0.4
-0.6
-0.8
-1.0
0
128 256 384 512 640 768 896 1024
Digital Code
FIGURE 2-16:
Differential Nonlinearity
(DNL) vs. Code (Representative Part,
VDD =2.7V).
0.6
0.4
Positive DNL
0.2
0.0
-0.2
Negative DNL
-0.4
-0.6
-50
-25
0
25
50
Temperature (°C)
75
100
FIGURE 2-14:
Differential Nonlinearity
(DNL) vs. Temperature.
0.6
VDD = VREF = 2.7 V
0.4 fSAMPLE = 75 ksps
0.2
Positive DNL
0.0
Negative DNL
-0.2
-0.4
-0.6
-50
-25
0
25
50
Temperature (°C)
75
100
FIGURE 2-17:
Differential Nonlinearity
(DNL) vs. Temperature (VDD = 2.7V).
2.0
1.5
VDD = 2.7 V
1.0
fSAMPLE = 75 ksps
0.5
0.0
-0.5
VDD = 5 V
-1.0
fSAMPLE = 200 ksps
-1.5
-2.0
0
1
2
3
4
5
VREF(V)
FIGURE 2-15:
Gain Error vs. VREF.
8
7
6
5
VDD = 5 V
fSAMPLE = 200 ksps
4
3
VDD = 2.7 V
2
fSAMPLE = 75 ksps
1
0
0
1
2
3
4
5
VREF (V)
FIGURE 2-18:
Offset Error vs. VREF.
© 2008 Microchip Technology Inc.
DS21295D-page 9
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