MCP3421 Microchip Technology, MCP3421 Datasheet - Page 4

• Manufacturer Part Number: MCP3421
• Description: 18-Bit Analog-to-Digital Converter with I2C Interface and On-Board Reference
• Manufacturer: Microchip Technology

MCP3421
2.0
Note: Unless otherwise indicated, T
FIGURE 2-1:
(V
FIGURE 2-2:
FIGURE 2-3:
DS22003B-page 4
Note:
DD
).
.005
.004
.003
.002
.001
.000
-10
-15
-20
20
15
10
-5
5
0
0.003
0.002
0.001
-60 -40 -20
TYPICAL PERFORMANCE CURVES
2.5
0
The graphs and tables provided following this note are a statistical summary based on a limited number of
samples and are provided for informational purposes only. The performance characteristics listed herein
are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified
operating range (e.g., outside specified power supply range) and therefore outside the warranted range.
-60 -40 -20
PGA = 1
PGA = 1
PGA = 1
PGA = 4
3
PGA = 2
V
PGA = 2
DD
Offset Error vs. Temperature.
0
= 5 V
3.5
Temperature (°C)
INL vs. Supply Voltage
INL vs. Temperature.
0
Temperature (
PGA = 4
PGA = 8
20
20 40 60 80 100 120 140
V
DD
40
4
(V)
60
PGA = 8
o
4.5
C)
A
V
80 100 120 140
DD
= -40°C to +85°C, V
= 2.7V
V
DD
5
= 5V
5.5
DD
= +5.0V, V
FIGURE 2-4:
FIGURE 2-5:
FIGURE 2-6:
-1.0
-2.0
-3.0
-0.1
-0.2
-0.3
-0.4
10.0
3.0
2.0
1.0
0.0
0.4
0.3
0.2
0.1
7.5
5.0
2.5
0.0
0
SS
-100
-60 -40 -20
-100 -75
= 0V, V
T
V
A
DD
= +25°C
-75
= 5V
Input Voltage (% of Full-Scale)
Input Voltage (% of Full-Scale)
IN
-50
-50
+ = V
0
Temperature (°C)
Noise vs. Input Voltage.
Total Error vs. Input Voltage.
Gain Error vs. Temperature.
PGA = 2
-25
-25
© 2006 Microchip Technology Inc.
20
IN
- = V
PGA = 1
40
0
0
PGA = 8
PGA = 1
PGA = 2
PGA = 8
PGA = 4
PGA = 4
PGA = 2
REF
60
25
25
PGA = 1
PGA = 8
/2.
80 100 120 140
50
50
PGA = 4
V
DD
75
75
= 5.0V
100
100