MCP3004/3008
Note: Unless otherwise indicated, VDD = VREF = 5V, fCLK = 18* fSAMPLE, TA = 25°C.
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0.0
-0.1
-0.2
-0.3
-0.4
-0.5
-0.6
VDD = VREF = 5 V
SAMPLE = 200 ksps
VDD = VREF = 2.7 V
SAMPLE = 75 ksps
f
f
VDD = VREF = 2.7 V
SAMPLE = 75 ksps
f
VDD = VREF = 5 V
SAMPLE = 200 ksps
f
-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.
80
80
VDD = VREF = 5 V
VDD = VREF = 5 V
SAMPLE = 200 ksps
70
70
fSAMPLE = 200 ksps
f
60
50
40
30
20
10
0
60
50
40
30
20
10
0
VDD = VREF = 2.7 V
SAMPLE = 75 ksps
VDD = VREF = 2.7 V
f
f
SAMPLE = 75 ksps
1
10
100
1
10
100
Input Frequency (kHz)
Input Frequency (kHz)
FIGURE 2-20: Signal to Noise (SNR) vs. Input
FIGURE 2-23: Signal to Noise and Distortion
Frequency.
(SINAD) vs. Input Frequency.
0
-10
-20
70
60
-30
VDD = VREF = 5 V
fSAMPLE = 200 ksps
50
40
30
20
10
0
VDD = VREF = 2.7 V
-40
f
SAMPLE = 75 ksps
-50
-60
-70
VDD = VREF = 2.7 V
SAMPLE = 75 ksps
-80
VDD = VREF = 5 V
fSAMPLE = 200 ksps
f
-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 (THD)
FIGURE 2-24: Signal to Noise and Distortion
vs. Input Frequency.
(SINAD) vs. Input Signal Level.
© 2007 Microchip Technology Inc.
DS21295C-page 9
MICROCHIP [ MICROCHIP ]
