MCP3204/3208
Note:
Unless otherwise indicated, V
DD
= V
REF
= 5V, V
SS
= 0V, f
SAMPLE
= 100 ksps, f
CLK
= 20* f
SAMPLE
,T
A
= 25°C.
1.0
0.8
0.6
1.0
0.8
0.6
V
DD
= V
REF
= 2.7 V
F
SAMPLE
= 50 ksps
DNL (LSB)
0.2
0.0
-0.2
-0.4
-0.6
-0.8
-1.0
0
512
1024
1536
2048
2560
3072
3584
4096
DNL (LSB)
0.4
0.4
0.2
0.0
-0.2
-0.4
-0.6
-0.8
-1.0
0
512
1024
1536
2048
2560
3072
3584
4096
Digital Code
Digital Code
FIGURE 2-13:
Differential Nonlinearity
(DNL) vs. Code (Representative Part).
FIGURE 2-16:
Differential Nonlinearity
(DNL) vs. Code (Representative Part, V
DD
=
2.7V).
1.0
0.8
0.6
V
DD
= V
REF
= 2.7 V
F
SAMPLE
= 50 ksps
Positive DNL
1.0
0.8
0.6
0.4
DNL (LSB)
0.2
0.0
DNL (LSB)
Positive DNL
0.4
0.2
0.0
-0.2
-0.4
-0.6
-0.8
-1.0
-0.2
-0.4
-0.6
-0.8
-1.0
-50
-25
0
25
50
75
100
Negative DNL
Negative DNL
-50
-25
0
25
50
75
100
Temperature (°C)
Temperature (°C)
FIGURE 2-14:
Differential Nonlinearity
(DNL) vs. Temperature.
FIGURE 2-17:
Differential Nonlinearity
(DNL) vs. Temperature (V
DD
= 2.7V).
4
3
V
DD
= V
REF
= 2.7 V
F
SAMPLE
= 50 ksps
20
18
16
14
12
10
8
6
4
2
0
0
1
2
3
4
5
0
1
2
3
4
5
V
DD
= V
REF
= 2.7V
F
SAMPLE
= 50 ksps
V
DD
= V
REF
= 5V
F
SAMPLE
= 100 ksps
Gain Error (LSB)
2
1
0
-1
-2
-3
-4
V
DD
= V
REF
= 5 V
F
SAMPLE
= 100 ksps
V
REF
(V)
Offset Error (LSB)
V
REF
(V)
FIGURE 2-15:
Gain Error vs. V
REF
.
FIGURE 2-18:
Offset Error vs. V
REF
.
DS21298D-page 8
©
2007 Microchip Technology Inc.
MICROCHIP [ MICROCHIP TECHNOLOGY ]
