MCP3201_08 Datasheet, PDF (8/36 Pages) Microchip Technology – 2.7V 12-Bit A/D Converter with SPI Serial Interface

MCP3201
Note: Unless otherwise indicated, V_DD = V_REF = 5V, V_SS = 0V, f_SAMPLE = 100 ksps, f_CLK = 16*f_SAMPLE, T_A = +25°C.
1.0
0.8
0.6
0.4
0.2
0.0
-0.2
-0.4
-0.6
-0.8
-1.0
-50
-25
FIGURE 2-7:
vs. Temperature.
Positive INL
Negative INL
0
25
50
75
100
Temperature (°C)
Integral Nonlinearity (INL)
1.0
0.8 ^{VDD = VREF = 2.7V}
0.6 ^{FSAMPLE = 50 ksps}
Positive INL
0.4
0.2
0.0
-0.2
-0.4
Negative INL
-0.6
-0.8
-1.0
-50
-25
0
25
50
75
100
Temperature (°C)
FIGURE 2-10:
Integral Nonlinearity (INL)
vs. Temperature (V_DD = 2.7V).
1.0
0.8
0.6
0.4
0.2
0.0
-0.2
-0.4
-0.6
-0.8
-1.0
0
Positive DNL
Negative DNL
25
50
75 100 125 150
Sample Rate (ksps)
FIGURE 2-8:
Differential Nonlinearity
(DNL) vs. Sample Rate.
3.0
2.0
1.0
0.0
-1.0
-2.0
0
1
FIGURE 2-9:
(DNL) vs. V_REF.
Positive DNL
Negative DNL
2
3
4
5
V_REF (V)
Differential Nonlinearity
2.0
1.5 ^{VDD = VREF = 2.7V}
1.0
0.5
Positive DNL
0.0
-0.5
Negative DNL
-1.0
-1.5
-2.0
0
20
40
60
80
100
Sample Rate (ksps)
FIGURE 2-11:
Differential Nonlinearity
(DNL) vs. Sample Rate (V_DD = 2.7V).
3.0
V_DD = 2.7V
2.0
F_SAMPLE = 50 ksps
Positive DNL
1.0
0.0
-1.0
Negative DNL
-2.0
-3.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
V_REF(V)
FIGURE 2-12:
Differential Nonlinearity
(DNL) vs. V_REF (V_DD = 2.7V).
DS21290E-page 8
© 2008 Microchip Technology Inc.