MCP3021
Note:
Unless otherwise indicated, V
DD
= 5V, V
SS
= 0V, I
2
C Fast Mode Timing (SCL = 400 kHz), Continuous Conversion
Mode (f
SAMP
= 22.3 ksps), T
A
= +25°C.
0.5
0.4
0.3
0.2
DNL (LSB)
0.1
0
-0.1
-0.2
-0.3
-0.4
-0.5
0
256
512
Digital Code
768
1024
DNL (LSB)
0.5
0.4
0.3
0.2
0.1
0
-0.1
-0.2
-0.3
-0.4
-0.5
0
256
512
Digital Code
768
1024
FIGURE 2-13:
DNL vs. Code
(Representative Part).
0.25
1
0.20
0.8
0.15
0.6
0.10
0.4
DNL (LSB)
0.005
0.2
0
-0.005
-0.2
-0.10
-0.4
-0.15
-0.6
-0.20
-0.8
-0.25
-1
-50
-25
0
25
50
75
100
125
Temperature (°C)
Negative DNL
Positive DNL
FIGURE 2-16:
DNL vs. Code
(Representative Part, V
DD
= 2.7V).
1
0.25
0.20
0.8
0.15
0.6
0.10
0.4
DNL (LSB)
0.005
0.2
0
-0.005
-0.2
-0.10
-0.4
-0.15
-0.6
-0.20
-0.8
-0.25
-1
-50
-25
0
25
50
75
100
125
Negative DNL
Positive DNL
Temperature (°C)
FIGURE 2-14:
DNL vs. Temperature.
FIGURE 2-17:
(V
DD
= 2.7V).
0.251
0.225
0.9
0.2
0.8
Offset Error (LSB)
0.175
0.7
0.15
0.6
0.125
0.5
0.1
0.4
0.075
0.3
0.05
0.2
0.025
0.1
0
DNL vs. Temperature
0
0
-0.025
-0.1
-0.05
-0.2
Gain Error (LSB)
f
SCL
= 100 kHz & 400 kHz
-0.075
-0.3
-0.1
-0.4
-0.125
-0.5
-0.15
-0.6
-0.175
-0.7
-0.2
-0.8
-0.225
-0.9
-0.25
-1
2.5
3
3.5
4
V
DD
(V)
4.5
5
5.5
Fast Mode
(f
SCL
=100 kHz)
Standard Mode
(f
SCL
=400 kHz)
0
2.5
3
3.5
4
V
DD
(V)
4.5
5
5.5
FIGURE 2-15:
Gain Error vs. V
DD
.
FIGURE 2-18:
Offset Error vs. V
DD
.
2003 Microchip Technology Inc.
DS21805A-page 7
MICROCHIP [ MICROCHIP TECHNOLOGY ]
