MCP3204/3208
Note: Unless otherwise indicated, VDD = VREF = 5V, VSS = 0V, fSAMPLE = 100 ksps, fCLK = 20* fSAMPLE,TA = 25°C.
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0.2
0.0
VDD = VREF = 2.7 V
FSAMPLE = 50 ksps
VDD = VREF = 5 V
FSAMPLE = 100 ksps
-0.2
-0.4
-0.6
-0.8
-1.0
-1.2
-1.4
-1.6
-1.8
VDD = VREF = 2.7 V
FSAMPLE = 50 ksps
VDD = VREF = 5 V
F
SAMPLE = 100 ksps
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature (°C)
Temperature (°C)
FIGURE 2-19:
Gain Error vs. Temperature.
FIGURE 2-22:
Offset Error vs.
Temperature.
100
90
80
70
60
50
40
30
20
10
100
90
VDD = VREF = 5 V
SAMPLE = 100 ksps
VDD = VREF = 5 V
F
F
SAMPLE = 100 ksps
80
70
60
VDD = VREF = 2.7 V
SAMPLE = 50 ksps
50
40
30
20
10
0
F
VDD = VREF = 2.7V
F
SAMPLE = 50 ksps
0
1
10
100
1
10
100
Input Frequency (kHz)
Input Frequency (kHz)
FIGURE 2-20:
Signal to Noise (SNR) vs.
FIGURE 2-23:
Signal to Noise and
Input Frequency.
Distortion (SINAD) vs. Input Frequency.
0
-10
-20
-30
-40
80
VDD = VREF = 5 V
FSAMPLE = 100 ksps
70
60
50
VDD = VREF = 2.7V
SAMPLE = 50 ksps
F
VDD = VREF = 2.7 V
SAMPLE = 50 ksps
-50
-60
F
40
30
20
10
0
-70
-80
VDD = VREF = 5V
FSAMPLE = 100 ksps
-90
-100
1
10
100
-40
-35
-30
-25
-20
-15
-10
-5
0
Input Frequency (kHz)
Input Signal Level (dB)
FIGURE 2-21:
Total Harmonic Distortion
FIGURE 2-24:
Signal to Noise and
(THD) vs. Input Frequency.
Distortion (SINAD) vs. Input Signal Level.
© 2007 Microchip Technology Inc.
DS21298D-page 9
MICROCHIP [ MICROCHIP ]
