MCP3204/3208
Note: Unless otherwise indicated, VDD = VREF = 5V, VSS = 0V, fSAMPLE = 100 ksps, fCLK = 20* fSAMPLE,TA = 25°C.
1.0
0.8
1.0
0.8
VDD = VREF = 2.7 V
SAMPLE = 50 ksps
F
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
512
1024 1536 2048 2560 3072 3584 4096
Digital Code
0
512
1024 1536 2048 2560 3072 3584 4096
Digital Code
FIGURE 2-13:
Differential Nonlinearity
FIGURE 2-16:
Differential Nonlinearity
(DNL) vs. Code (Representative Part).
(DNL) vs. Code (Representative Part, VDD
2.7V).
=
1.0
0.8
0.6
1.0
VDD = VREF = 2.7 V
0.8
FSAMPLE = 50 ksps
0.6
0.4
0.4
Positive DNL
Positive DNL
0.2
0.0
0.2
0.0
-0.2
-0.2
-0.4
-0.6
-0.8
-1.0
-0.4
Negative DNL
Negative DNL
-0.6
-0.8
-1.0
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature (°C)
Temperature (°C)
FIGURE 2-14:
Differential Nonlinearity
FIGURE 2-17:
Differential Nonlinearity
(DNL) vs. Temperature.
(DNL) vs. Temperature (VDD = 2.7V).
4
3
20
18
16
VDD = VREF = 2.7 V
SAMPLE = 50 ksps
F
2
1
VDD = VREF = 5V
14
FSAMPLE = 100 ksps
12
10
8
0
-1
-2
-3
-4
VDD = VREF = 2.7V
FSAMPLE = 50 ksps
6
VDD = VREF = 5 V
SAMPLE = 100 ksps
4
F
2
0
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.
DS21298D-page 8
© 2007 Microchip Technology Inc.
MICROCHIP [ MICROCHIP ]
