參數(shù)資料
型號(hào): MCP3221T
廠商: Microchip Technology Inc.
英文描述: 560KBITS BRAM 400000 SYSTEM GATES 404 - - NOT RECOMMENDED for NEW DESIGN
中文描述: 低功耗12位A / D轉(zhuǎn)換器具有I2C⑩接口
文件頁(yè)數(shù): 9/27頁(yè)
文件大?。?/td> 520K
代理商: MCP3221T
2003 Microchip Technology Inc.
DS21732B-page 9
MCP3221
Note:
Unless otherwise indicated, V
DD
= 5V, V
SS
= 0V, I
2
C Fast Mode Timing (SCL = 400 kHz), Continuous Conversion
Mode (f
SAMP
= 22.3 ksps), T
A
= +25°C.
FIGURE 2-25:
ENOB vs. V
DD
.
FIGURE 2-26:
SFDR vs. Input Frequency.
FIGURE 2-27:
Mode (Representative Part, 1 kHz Input
Frequency).
Spectrum Using I
2
C Fast
FIGURE 2-28:
ENOB vs. Input Frequency.
FIGURE 2-29:
Standard Mode (Representative Part, 1 kHz
Input Frequency).
Spectrum Using I
2
C
FIGURE 2-30:
I
DD
(Conversion) vs. V
DD
.
11.5
11.55
11.6
11.65
11.7
11.75
11.8
11.85
11.9
11.95
12
2.5
3
3.5
4
4.5
5
5.5
V
DD
(V)
E
0
10
20
30
40
50
60
70
80
90
100
1
10
Input Frequency (kHz)
S
V
DD
= 2.7V
V
DD
= 5V
-130
-110
-90
-70
-50
-30
-10
10
0
2000
4000
Frequency (Hz)
6000
8000
10000
A
9
9.5
10
10.5
11
11.5
12
1
10
Input Frequency (kHz)
E
V
DD
= 2.7V
V
DD
= 5V
-130
-110
-90
-70
-50
-30
-10
10
0
500
1000
1500
2000
2500
Frequency (Hz)
A
f
SAMP
= 5.6 ksps
0
50
100
150
200
250
2.5
3
3.5
4
4.5
5
5.5
V
DD
(V)
I
D
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