Rev. 1.0
45
C8051F80x-83x
Table 7.13. 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
—
220
—
ns
CP0+ – CP0– = –100 mV
—
225
—
ns
Response Time:
Mode 1, Vcm* = 1.5 V
CP0+ – CP0– = 100 mV
—
340
—
ns
CP0+ – CP0– = –100 mV
—
380
—
ns
Response Time:
Mode 2, Vcm* = 1.5 V
CP0+ – CP0– = 100 mV
—
510
—
ns
CP0+ – CP0– = –100 mV
—
945
—
ns
Response Time:
Mode 3, Vcm* = 1.5 V
CP0+ – CP0– = 100 mV
—
1500
—
ns
CP0+ – CP0– = –100 mV
—
5000
—
ns
Common-Mode Rejection Ratio
—
1
4
mV/V
Positive Hysteresis 1
Mode 2, CP0HYP1–0 = 00b
—
0
1
mV
Positive Hysteresis 2
Mode 2, CP0HYP1–0 = 01b
2
5
10
mV
Positive Hysteresis 3
Mode 2, CP0HYP1–0 = 10b
7
10
20
mV
Positive Hysteresis 4
Mode 2, CP0HYP1–0 = 11b
10
20
30
mV
Negative Hysteresis 1
Mode 2, CP0HYN1–0 = 00b
—
0
1
mV
Negative Hysteresis 2
Mode 2, CP0HYN1–0 = 01b
2
5
10
mV
Negative Hysteresis 3
Mode 2, CP0HYN1–0 = 10b
7
10
20
mV
Negative Hysteresis 4
Mode 2, CP0HYN1–0 = 11b
10
20
30
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
—
0.1
—
mV/V
Powerup Time
—
10
—
s
Supply Current at DC
Mode 0
—
20
—
A
Mode 1
—
8
—
A
Mode 2
—
3
—
A
Mode 3
—
0.5
—
A
Note: Vcm is the common-mode voltage on CP0+ and CP0–.