MCP3422 Microchip Technology Inc., MCP3422 Datasheet - Page 9

• Manufacturer Part Number: MCP3422
• Description: 18-bit, Multi-channel ?? Analog-to-digital Converter With I2c? Interface And On-board Reference
• Manufacturer: Microchip Technology Inc.

2.0
Note: Unless otherwise indicated, T
V
FIGURE 2-1:
(V
FIGURE 2-2:
FIGURE 2-3:
Temperature.
© 2008 Microchip Technology Inc.
INCOM
Note:
DD
).
-10
-15
-20
20
15
10
-5
0.0035
0.0025
0.0015
0.0005
0.0035
0.0025
0.0015
0.0005
5
0
0.003
0.002
0.001
0.003
0.002
0.001
= V
-60 -40 -20
TYPICAL PERFORMANCE CURVES
0
0
REF
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
2.5
PGA = 1
/2.
PGA = 8
3
0
Temperature (°C)
INL vs. Supply Voltage
2.7V
INL vs. Temperature.
PGA = 2
Offset Error vs.
PGA = 4
0
5.5V
20
3.5
Temperature (
20 40 60 80 100 120 140
40
V
PGA = 4
DD
5V
4
(V)
60
PGA = 8
A
PGA = 2
80 100 120 140
o
4.5
C)
= -40°C to +85°C, V
PGA = 1
T
A
PGA = 1
5
= +25°C
5.5
DD
= +5.0V, V
FIGURE 2-4:
Voltage.
FIGURE 2-5:
FIGURE 2-6:
-0.1
-0.2
-0.3
-0.4
-0.5
-0.6
8
7
6
5
4
3
2
1
0
-0.5
-1.5
0.2
0.1
-100
1.5
0.5
-1
-2
0
2
1
0
SS
-100 -75
-60 -40 -20
= 0V, CHn+ = CHn- = V
-75
PGA = 4
PGA = 1
PGA = 8
Input Voltage (% of Full-Scale)
-50
-50
Input Signal (% of FSR)
PGA = 8
MCP3422/3/4
PGA = 8
PGA = 2
0
-25
Temperature (°C)
Output Noise vs. Input
Total Error vs. Input Voltage.
Gain Error vs. Temperature.
-25
20
PGA = 4
0
40
0
PGA = 2
60
PGA = 1
25
25
REF
80 100 120 140
PGA = 1
DS22088B-page 9
/2,
50
50
PGA = 2
T
T
A
PGA = 4
A
= +25°C
= +25°C
75
75
100
100