C8051F120/1/2/3/4/5/6/7
C8051F130/1/2/3
126
Rev. 1.4
Table 10.1. Comparator Electrical Characteristics
VDD = 3.0 V, AV+ = 3.0 V, –40 to +85 °C unless otherwise specified.
Parameter
Conditions
Min
Typ
Max
Units
Response Time:
Mode 0, VCM
* = 1.5 V
CPn+ – CPn- = 100 mV
—
100
—
ns
CPn+ – CPn– = –100 mV
—
250
—
ns
Response Time:
Mode 1, VCM
* = 1.5 V
CPn+ – CPn– = 100 mV
—
175
—
ns
CPn+ – CPn– = –100 mV
—
500
—
ns
Response Time:
Mode 2, VCM
* = 1.5 V
CPn+ – CPn– = 100 mV
—
320
—
ns
CPn+ – CPn– = –100 mV
—
1100
—
ns
Response Time:
Mode 3, VCM
* = 1.5 V
CPn+ – CPn– = 100 mV
—
1050
—
ns
CPn+ – CPn– = –100 mV
—
5200
—
ns
Common-Mode Rejection
Ratio
—
1.5
4
mV/V
Positive Hysteresis 1
CPnHYP1-0 = 00
—
0
1
mV
Positive Hysteresis 2
CPnHYP1-0 = 01
2
4.5
7
mV
Positive Hysteresis 3
CPnHYP1-0 = 10
4
9
13
mV
Positive Hysteresis 4
CPnHYP1-0 = 11
10
17
25
mV
Negative Hysteresis 1
CPnHYN1-0 = 00
—
0
1
mV
Negative Hysteresis 2
CPnHYN1-0 = 01
2
4.5
7
mV
Negative Hysteresis 3
CPnHYN1-0 = 10
4
9
13
mV
Negative Hysteresis 4
CPnHYN1-0 = 11
10
17
25
mV
Inverting or Non-Inverting
Input Voltage Range
–0.25
—
(AV+)
+ 0.25
V
Input Capacitance
—
7
—
pF
Input Bias Current
–5
0.001
+5
nA
Input Offset Voltage
–10
—
+10
mV
Power Supply
Power-Up Time
CPnEN from 0 to 1
—
20
—
s
Power Supply Rejection
—
0.1
1
mV/V
Supply Current at DC
(each comparator)
Mode 0
—
7.6
—
A
Mode 1
—
3.2
—
A
Mode 2
—
1.3
—
A
Mode 3
—
0.4
—
A
*Note: VCM is the common-mode voltage on CPn+ and CPn-.