Datasheet

 2002-2017 Microchip Technology Inc. DS20001732E-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 2-19: Gain Error vs. Temperature.
FIGURE 2-20: SNR vs. Input Frequency.
FIGURE 2-21: THD vs. Input Frequency.
FIGURE 2-22: Offset Error vs.
Temperature.
FIGURE 2-23: SINAD vs. Input Frequency.
FIGURE 2-24: SINAD vs. Input Signal
Level.
-3
-2
-1
0
1
2
3
-50 -25 0 25 50 75 100 125
Temperature (°C)
Gain Error (LSB)
V
DD
= 5V
V
DD
= 2.7V
0
10
20
30
40
50
60
70
80
90
100
110
Input Frequency (kHz)
SNR (dB)
V
DD
= 5V
V
DD
= 2.7V
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
110
Input Frequency (kHz)
THD (dB)
V
DD
= 2.7V
V
DD
= 5V
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
-50 -25 0 25 50 75 100 125
Temperature (°C)
Offset Error (LSB)
V
DD
= 5V
V
DD
= 2.7V
0
10
20
30
40
50
60
70
80
90
100
110
Input Frequency (kHz)
SINAD (dB)
V
DD
= 5V
V
DD
= 2.7V
0
10
20
30
40
50
60
70
80
-40 -30 -20 -10 0
Input Signal Level (dB)
SINAD (dB)
V
DD
= 5V
V
DD
= 2.7V