Note: Unless otherwise indicated, T
參數(shù)資料
型號(hào)： MCP3421A0T-E/OT
廠商： Microchip Technology
文件頁數(shù)： 25/30頁
文件大?。?/td> 0K
描述： IC ADC 18BIT 3.75SPS 1CH SOT23-6
標(biāo)準(zhǔn)包裝： 1
位數(shù)： 18
采樣率（每秒）： 3.75
數(shù)據(jù)接口： I²C，串行
轉(zhuǎn)換器數(shù)目： 1
電壓電源： 單電源
工作溫度： -40°C ~ 125°C
安裝類型： 表面貼裝
封裝/外殼： SOT-23-6
供應(yīng)商設(shè)備封裝： SOT-23-6
包裝： 標(biāo)準(zhǔn)包裝
輸入數(shù)目和類型： 2 個(gè)單端，雙極；1 個(gè)差分，單極
配用： MCP3421EV-ND - BOARD EVAL FOR MCP3421 SOT23-6
其它名稱： 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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