参数资料
型号: MCP3421A1T-E/CH
厂商: Microchip Technology
文件页数: 40/42页
文件大小: 0K
描述: IC ADC 18BIT 3.75SPS 1CH SOT23-6
产品培训模块: MCP3901 Analog Front End
标准包装: 1
位数: 18
采样率(每秒): 3.75
数据接口: I²C,串行
转换器数目: 1
电压电源: 单电源
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: SOT-23-6
供应商设备封装: SOT-23-6
包装: 标准包装
输入数目和类型: 2 个单端,双极;1 个差分,单极
产品目录页面: 672 (CN2011-ZH PDF)
其它名称: MCP3421A1T-E/CHDKR
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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