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.
150
IDD Spike near VPU = 0.9V
150
VDD = 5.5 V
125
V DD = 5.5V
V DD = 4.5V
VDD = 3.5V
125
V DD = 4.5 V
V DD = 3.5 V
I Q (µA)
100
I Q (µA)
100
75
50
VDD = 2.5V
VDD = 2.0V
VDD = 1.8V
0.5 1.5 2.5 3.5 4.5 5.5 6.5 7.5 8.5 9.5 10.5
V PU (V)
75
VDD = 2.5 V
VDD = 2.0 V
V DD = 1.8 V
50
-4.5 -2.5 -0.5 1.5 3.5 5.5 7.5 9.5
V PU - V DD (V)
FIGURE 2-19:
Pull-up Voltage.
Quiescent Current vs.
FIGURE 2-22: Quiescent Current vs.
Pull-up to Supply Voltage Difference.
IQ (µA)
400
350
300
250
200
150
100
100 mV Over-Drive
V CM = V DD /2
R L = Open
0dB Output Attenuation
VDD = 1.8V
VDD = 5.5V
50
10 100 1000 1k 10000 10k 100000 100k 100000 1M 1E+07 10M
Toggle Frequency (Hz) 0
I OH_leak (pA)
100,000
10,000
1,000
100
10
1
T A =
T A = +85°C
T A = +25°C
1.5 2.5 3.5 4.5 5.5 6.5 7.5 8.5 9.5 10.5
V PU (V)
FIGURE 2-20:
Toggle Frequency.
Quiescent Current vs.
FIGURE 2-23:
Pull-up Voltage.
Output Leakage Current vs.
1000
V DD = 1.8V
1000
V DD = 5.5V
V OL (mV)
800
600
400
200
TA = +125°C
T A = +85°C
T A = +25°C
T A = -40°C
V OL (mV)
800
600
400
200
TA = +125°C
T A = +85°C
TA = +25°C
T A = -40°C
0
0.0 3.0 6.0 9.0 12.0 15.0
I OUT (mA)
0
0 5 10 15 20 25
I OUT (mA)
FIGURE 2-21:
Current.
Output Headroom vs Output
FIGURE 2-24:
Current.
Output Headroom Vs Output
DS22143B-page 10
© 2009 Microchip Technology Inc.