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C8051F310/1/2/3/4/5/6/7
76
Rev. 1.6
Table 7.1. Comparator Electrical Characteristics
VDD = 3.0 V, –40 to +85 °C unless otherwise noted.
All specifications apply to both Comparator0 and Comparator1 unless otherwise noted.
Parameter
Conditions
Min
Typ
Max
Units
Response Time:
Mode 0, Vcm1 = 1.5 V
CP0+ – CP0– = 100 mV
—
100
—
ns
CP0+ – CP0– = –100 mV
—
250
—
ns
Response Time:
Mode 1, Vcm1 = 1.5 V
CP0+ – CP0– = 100 mV
—
175
—
ns
CP0+ – CP0– = –100 mV
—
500
—
ns
Response Time:
Mode 2, Vcm1 = 1.5 V
CP0+ – CP0– = 100 mV
—
320
—
ns
CP0+ – CP0– = –100 mV
—
1100
—
ns
Response Time:
Mode 3, Vcm1 = 1.5 V
CP0+ – CP0– = 100 mV
—
1050
—
ns
CP0+ – CP0– = –100 mV
—
5200
—
ns
Common-Mode Rejection Ratio
—1.5
4
mV/V
Positive Hysteresis 1
CP0HYP1-0 = 00
—
0
1
mV
Positive Hysteresis 2
CP0HYP1-0 = 01
2
5
7
mV
Positive Hysteresis 3
CP0HYP1-0 = 10
5
10
13
mV
Positive Hysteresis 4
CP0HYP1-0 = 11
12
20
25
mV
Negative Hysteresis 1
CP0HYN1-0 = 00
0
1
mV
Negative Hysteresis 2
CP0HYN1-0 = 01
2
5
7
mV
Negative Hysteresis 3
CP0HYN1-0 = 10
5
10
13
mV
Negative Hysteresis 4
CP0HYN1-0 = 11
12
20
25
mV
Inverting or Non-Inverting Input
Voltage Range
–0.25
—
VDD +
0.25
V
Input Capacitance
—7—
pF
Input Bias Current
—1—
nA
Input Offset Voltage
–5
—
+5
mV
Power Supply
Power Supply Rejection2
—0.1
1
mV/V
Power-up Time
—10—
µs
Supply Current at DC
Mode 0
—
7.6
20
µA
Mode 1
—
3.2
10
µA
Mode 2
—
1.3
5
µA
Mode 3
—
0.4
2.5
µA
Notes:
1. Vcm is the common-mode voltage on CP0+ and CP0–.
2. Guaranteed by design and/or characterization.
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