MCP3221 Microchip Technology, MCP3221 Datasheet - Page 9

• Manufacturer Part Number: MCP3221
• Description: Low Power 12-Bit A/D Converter With I2C Interface
• Manufacturer: Microchip Technology

Note: Unless otherwise indicated, V
Mode (f
FIGURE 2-25:
FIGURE 2-26:
FIGURE 2-27:
Mode (Representative Part, 1 kHz Input
Frequency).
2003 Microchip Technology Inc.
100
-110
-130
90
80
70
60
50
40
30
20
10
11.95
11.85
11.75
11.65
11.55
-10
-30
-50
-70
-90
0
10
11.9
11.8
11.7
11.6
11.5
SAMP
1
12
0
2.5
= 22.3 ksps), T
2000
V
DD
3
V
= 2.7V
DD
Input Frequency (kHz)
= 5V
ENOB vs. V
SFDR vs. Input Frequency.
Spectrum Using I
Frequency (Hz)
3.5
4000
V
A
DD
= +25°C.
4
(V)
6000
DD
DD
4.5
= 5V, V
.
8000
2
C™ Fast
5
SS
10000
10
= 0V, I
5.5
2
C Fast Mode Timing (SCL = 400 kHz), Continuous Conversion
FIGURE 2-28:
FIGURE 2-29:
Standard Mode (Representative Part, 1 kHz
Input Frequency).
FIGURE 2-30:
-110
-130
11.5
10.5
250
200
150
100
-10
-30
-50
-70
-90
9.5
10
12
11
10
50
0
9
2.5
0
1
500
3
Input Frequency (kHz)
3.5
1000
ENOB vs. Input Frequency.
Spectrum Using I
I
V
Frequency (Hz)
DD
DD
= 2.7V
(Conversion) vs. V
V
DD
1500
4
MCP3221
(V)
4.5
2000
DS21732B-page 9
f
V
SAMP
DD
= 5V
= 5.6 ksps
2
5
C™
2500
DD
5.5
10
.