1.8V Low Power Open-Drain Output Comparator - Microchip

MCP6566/6R/6U/7/9
Note: Unless otherwise indicated, V DD = +1.8V to +5.5V, V SS = GND, T A = +25°C, V IN + = V DD /2, V IN – = GND,
R L = 20 kΩ to V PU = V DD , and C L = 25 pF.
80
80
Prop. Delay (ns)
70
60
50
40
30
VDD= 1.8V
100 mV Over-Drive
tPHL
Prop. Delay (ns)
70
60
50
40
30
V DD = 5.5V
100 mV Over-Drive
t PHL
20
0.00 0.50 1.00 1.50 2.00
V CM (V)
FIGURE 2-31: Propagation Delay vs.
Common-mode Input Voltage.
20
0.0 1.0 2.0 3.0 4.0 5.0 6.0
V CM (V)
FIGURE 2-34: Propagation Delay vs.
Common-mode Input Voltage.
Prop. Delay (µs)
1000
100
10
1
0.1
100mV Over-Drive
V CM = V DD /2
VDD = 5.5V, tPHL
VDD = 1.8V, tPHL
Prop. Delay (ns)
10000
1000
100
100 mV Over-Drive
V CM = V DD /2
t PLH
t PHL
0.01
0.001 1 0.01 10 0.1 100 1000 1 10000 100000 1E+06 1000
Capacitive Load (nf)
10
0.1 1.0 10.0 100.0
R PU (kΩ)
FIGURE 2-32:
Capacitive Load.
Propagation Delay vs.
FIGURE 2-35:
Pull-up Resistor.
Propagation Delay vs.
Input Current (A)
1E+11 10m
1E+09 1m
1E+07 10µ
1E+05 100n
1E+03 1n
1E+01 10p
T A = -40°C
TA= +25°C
T A = +85°C
TA= +125°C
1E-01 0.1p
-0.8 -0.6 -0.4 -0.2 0
Input Voltage (V)
Prop. Delay (ns)
10000
1000
100
10
100 mV Over-Drive
VCM = VDD/2
tPLH, VDD = 1.8V
t PLH, V DD = 5.5V
t PHL, V DD = 1.8V
t PLH, V DD = 5.5V
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
V PU (V)
FIGURE 2-33: Input Bias Current vs. Input
Voltage vs Temperature.
FIGURE 2-36:
Pull-up Voltage.
Propagation Delay vs.
DS22143B-page 12
© 2009 Microchip Technology Inc.