Rev.1.0
35
C8051F336/7/8/9
Table 6.12. 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
—
100
—
ns
CP0+ – CP0– = –100 mV
—
200
—
ns
Response Time
Mode 1, Vcm* = 1.5 V
CP0+ – CP0– = 100 mV
—
250
—
ns
CP0+ – CP0– = –100 mV
—
350
—
ns
Response Time
Mode 2, Vcm* = 1.5 V
CP0+ – CP0– = 100 mV
—
400
—
ns
CP0+ – CP0– = –100 mV
—
800
—
ns
Response Time
Mode 3, Vcm* = 1.5 V
CP0+ – CP0– = 100 mV
—
1100
—
ns
CP0+ – CP0– = –100 mV
—
5000
—
ns
Common-Mode Rejection Ratio
—
1.25
5
mV/V
Positive Hysteresis 1
CP0HYP1–0 = 00
—
0
1
mV
Positive Hysteresis 2
CP0HYP1–0 = 01
1
5
10
mV
Positive Hysteresis 3
CP0HYP1–0 = 10
6
10
20
mV
Positive Hysteresis 4
CP0HYP1–0 = 11
12
20
30
mV
Negative Hysteresis 1
CP0HYN1–0 = 00
0
1
mV
Negative Hysteresis 2
CP0HYN1–0 = 01
1
5
10
mV
Negative Hysteresis 3
CP0HYN1–0 = 10
6
10
20
mV
Negative Hysteresis 4
CP0HYN1–0 = 11
12
20
30
mV
Inverting or Non-Inverting Input
Voltage Range
–0.25
—
VDD + 0.25
V
Input Capacitance
—
4
—
pF
Input Bias Current
—
0.001
—
nA
Input Offset Voltage
–5
—
+5
mV
Power Supply
Power Supply Rejection
—
0.1
—
mV/V
Power-up Time
—
10
—
s
Supply Current at DC
Mode 0
—
10
20
A
Mode 1
—
4
10
A
Mode 2
—
2
5
A
Mode 3
—
0.4
2.5
A
Note: Vcm is the common-mode voltage on CP0+ and CP0–.