参数资料
型号: MCP3421A0T-E/OT
厂商: Microchip Technology
文件页数: 25/30页
文件大小: 0K
描述: IC ADC 18BIT 3.75SPS 1CH SOT23-6
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
配用: MCP3421EV-ND - BOARD EVAL FOR MCP3421 SOT23-6
其它名称: MCP3421A0T-E/OTDKR
MCP3421
DS22003B-page 4
2006 Microchip Technology Inc.
2.0
TYPICAL PERFORMANCE CURVES
Note: Unless otherwise indicated, TA = -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:
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
2.5
3
3.5
4
4.5
5
5.5
VDD (V)
PGA = 1
PGA = 2
PGA = 8
PGA = 4
Inte
gral
N
onli
n
ea
rity
(%
of
FSR)
0
0.001
0.002
0.003
-60 -40 -20 0
20 40 60 80 100 120 140
Temperature (
oC)
Int
egra
lNonline
ari
ty
(%
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)
Off
se
tE
rro
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)
Noise
(V,
rms)
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
tal
Erro
r(mV
)
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)
G
ain
E
rro
r(
%
o
f
F
S
R
)
VDD = 5.0V
PGA = 1
PGA = 2
PGA = 8
PGA = 4
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