Datasheet

MCP3021
DS21805B-page 8  2003-2013 Microchip Technology Inc.
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.
-1.5
-1
-0.5
0
0.5
1
1.5
-50 -25 0 25 50 75 100 125
Temperature (°C)
Gain Error (LSB)
V
DD
= 5V
V
DD
= 2.7V
0.375
0.250
0.125
-0.125
-0.250
-0.375
12
24
36
48
60
72
84
96
110
Input Frequency (kHz)
SNR (dB)
V
DD
= 5V
V
DD
= 2.7V
Y
84
72
60
48
36
24
12
0
-96
-84
-72
-60
-48
-36
-24
-12
110
Input Frequency (kHz)
THD (dB)
V
DD
= 2.7V
V
DD
= 5V
0
-12
-24
-36
-48
-60
-72
-84
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
0.50
0.45
0.40
0.35
0.30
0.25
0.15
0.10
0.05
0
0.20
12
24
36
48
60
72
84
96
110
Input Frequency (kHz)
SINAD (dB)
V
DD
= 5V
V
DD
= 2.7V
84
72
60
48
36
24
12
0
12
24
36
48
60
72
84
96
-40 -30 -20 -10 0
Input Signal Level (dB)
SINAD (dB)
V
DD
= 5V
V
DD
= 2.7V
84
72
60
48
36
24
12
0