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Rev. 1.0
31
C8051T630/1/2/3/4/5
Table 5.13. Comparator Electrical Characteristics
VDD = 3.0 V, –40 to +85 °C unless otherwise noted.
Parameter
Conditions
Min
Typ
Max
Units
Response Time:
Mode 0, Vcm* = 1.5 V
CP0+ – CP0– = 100 mV
—
240
—
ns
CP0+ – CP0– = –100 mV
—
240
—
ns
Response Time:
Mode 1, Vcm* = 1.5 V
CP0+ – CP0– = 100 mV
—
400
—
ns
CP0+ – CP0– = –100 mV
—
400
—
ns
Response Time:
Mode 2, Vcm* = 1.5 V
CP0+ – CP0– = 100 mV
—
650
—
ns
CP0+ – CP0– = –100 mV
—
1100
—
ns
Response Time:
Mode 3, Vcm* = 1.5 V
CP0+ – CP0– = 100 mV
—
2000
—
ns
CP0+ – CP0– = –100 mV
—
5500
—
ns
Common-Mode Rejection Ratio
—
1
4
mV/V
Positive Hysteresis 1
CP0HYP1–0 = 00
—
0
1
mV
Positive Hysteresis 2
CP0HYP1–0 = 01
2
5
8
mV
Positive Hysteresis 3
CP0HYP1–0 = 10
6
10
14
mV
Positive Hysteresis 4
CP0HYP1–0 = 11
12
20
28
mV
Negative Hysteresis 1
CP0HYN1–0 = 00
—
0
1
mV
Negative Hysteresis 2
CP0HYN1–0 = 01
2
5
8
mV
Negative Hysteresis 3
CP0HYN1–0 = 10
6
10
14
mV
Negative Hysteresis 4
CP0HYN1–0 = 11
12
20
28
mV
Inverting or Non-Inverting Input
Voltage Range
–0.25
—
VDD + 0.25
V
Input Offset Voltage
–7.5
—
7.5
mV
Power Specifications
Power Supply Rejection
—
0.5
—
mV/V
Powerup Time
—
10
—
s
Supply Current at DC
Mode 0
—
26
50
A
Mode 1
—
10
20
A
Mode 2
—
3
6
A
Mode 3
—
0.5
2
A
Note: Vcm is the common-mode voltage on CP0+ and CP0–.