MCP3008-I 查看數據表（PDF） - Microchip Technology
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MCP3008-I
Microchip Technology
MCP3008-I Datasheet PDF : 40 Pages
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MCP3004/3008
Note: Unless otherwise indicated, VDD = VREF = 5V, fCLK = 18* fSAMPLE, TA = +25°C.
0.0
-0.1
VDD = VREF = 2.7 V
fSAMPLE = 75 ksps
-0.2
-0.3
-0.4
VDD = VREF = 5 V
-0.5
fSAMPLE = 200 ksps
-0.6
-50
-25
FIGURE 2-19:
0
25
50
Temperature (°C)
75
100
Gain Error vs. Temperature.
1.2
VDD = VREF = 5 V
1.0
fSAMPLE = 200 ksps
0.8
0.6
VDD = VREF = 2.7 V
fSAMPLE = 75 ksps
0.4
0.2
0.0
-50
-25
0
25
50
Temperature (°C)
75
100
FIGURE 2-22:
Temperature.
Offset Error vs.
80
70
60
50
40
30
20
10
0
1
VDD = VREF = 5 V
fSAMPLE = 200 ksps
VDD = VREF = 2.7 V
fSAMPLE = 75 ksps
10
100
Input Frequency (kHz)
FIGURE 2-20:
Signal-to-Noise (SNR) vs.
Input Frequency.
80
70
60
50
40
30
20
10
0
1
VDD = VREF = 5 V
fSAMPLE = 200 ksps
VDD = VREF = 2.7 V
fSAMPLE = 75 ksps
10
100
Input Frequency (kHz)
FIGURE 2-23:
Signal-to-Noise and
Distortion (SINAD) vs. Input Frequency.
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
1
VDD = VREF = 2.7 V
fSAMPLE = 75 ksps
VDD = VREF = 5 V
fSAMPLE = 200 ksps
10
100
Input Frequency (kHz)
FIGURE 2-21:
Total Harmonic Distortion
(THD) vs. Input Frequency.
70
60
50 VDD = VREF = 5 V
fSAMPLE = 200 ksps
40
30
20
VDD = VREF = 2.7 V
fSAMPLE = 75 ksps
10
0
-40 -35 -30 -25 -20 -15 -10 -5
0
Input Signal Level (dB)
FIGURE 2-24:
Signal-to-Noise and
Distortion (SINAD) vs. Input Signal Level.
DS21295D-page 10
© 2008 Microchip Technology Inc.
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