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参数资料
| 型号： | MCP3421DM-WS |
| 厂商： | Microchip Technology |
| 文件页数： | 40/42页 |
| 文件大小： | 0K |
| 描述： | BOARD DEMO MCP3421 WEIGHT SCALE |
| 标准包装： | 1 |
| 主要目的： | 参考设计，称量台 |
| 嵌入式： | 是，MCU，8 位 |
| 已用 IC / 零件： | MCP3421，MCP6V07，PIC18F4550 |
| 主要属性： | 2Kg测压元件，灵敏度为1 mV/V |
| 已供物品： | 板，线缆，CD，电源 |
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2009 Microchip Technology Inc.
DS22003E-page 7
MCP3421
2.0
TYPICAL PERFORMANCE CURVES
Note: Unless otherwise indicated, T
A = -40°C to +85°C, VDD = +5.0V, VSS = 0V, VIN+ = VIN- = VREF/2.
FIGURE 2-1:
INL vs. Supply Voltage
(VDD).
FIGURE 2-2:
INL vs. Temperature.
FIGURE 2-3:
Offset Error vs.
Temperature.
FIGURE 2-4:
Output Noise vs. Input
Voltage.
FIGURE 2-5:
Total Error vs. Input Voltage.
FIGURE 2-6:
Gain Error vs. Temperature.
Note:
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.
.000
.001
.002
.003
.004
.005
2.533.544.555.5
VDD (V)
PGA = 1
PGA = 2
PGA = 8
PGA = 4
Integra
lNonlinea
rity
(%
of
FSR
)
0
0.001
0.002
0.003
-60 -40 -20 0
20 40 60 80 100 120 140
Temperature (
oC)
Inte
gral
Nonline
a
rity
(%
of
FSR)
VDD = 5 V
VDD = 2.7V
PGA = 1
-20
-15
-10
-5
0
5
10
15
20
-60 -40 -20
0
20
40
60
80 100 120 140
Temperature (°C)
O
ffset
Er
ro
r(
V)
VDD = 5V
PGA = 1
PGA = 2
PGA = 8
PGA = 4
0.0
2.5
5.0
7.5
10.0
-100 -75
-50
-25
0
25
50
75
100
Input Voltage (% of Full Scale)
N
o
is
e
(
V
,r
m
s)
PGA = 1
PGA = 2
PGA = 8
PGA = 4
TA = +25°C
VDD = 5V
-3.0
-2.0
-1.0
0.0
1.0
2.0
3.0
-100 -75
-50
-25
0
25
50
75
100
Input Voltage (% of Full Scale)
T
o
ta
lE
rro
r
(m
V
)
PGA = 1
PGA = 2
PGA = 8
PGA = 4
-0.4
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0.4
-60 -40 -20
0
20
40
60
80 100 120 140
Temperature (°C)
Gain
Err
o
r(%
o
fFSR
)
VDD = 5.0V
PGA = 1
PGA = 2
PGA = 8
PGA = 4
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