MCP6544T Microchip Technology, MCP6544T Datasheet - Page 14

• Manufacturer Part Number: MCP6544T
• Description: Push-Pull Output Sub-Microamp Comparators
• Manufacturer: Microchip Technology

MCP6541/2/3/4
3.9
3.9.1
Some applications require higher DC precision. An
easy way to solve this problem is to use an amplifier
(such as the MCP6041) to gain-up the input signal
before it reaches the comparator. Figure 3-9 shows an
example of this approach.
FIGURE 3-9:
Comparator.
3.9.2
Figure 3-10 shows one approach to designing a win-
dowed comparator. The AND gate produces a logic ‘1’
when the input voltage is between V
V
FIGURE 3-10:
DS21696C-page 14
V
RT
V
IN
REF
> V
V
V
V
RT
IN
RB
RB
Typical Applications
R
).
1
PRECISE COMPARATOR
WINDOWED COMPARATOR
MCP6041
R
V
2
V
Precise Inverting
Windowed Comparator.
DD
REF
MCP6542
MCP6542
1/2
1/2
MCP654X
RB
V
and V
DD
RT
(where
V
OUT
3.9.3
A simple bistable multi-vibrator design is shown in
Figure 3-11. V
supplies (V
The output duty cycle changes with V
FIGURE 3-11:
V
REF
SS
BISTABLE MULTI-VIBRATOR
R
= GND and V
REF
1
C
1
needs to be between the power
Bistable Multi-vibrator.
2003 Microchip Technology Inc.
DD
MCP6541
) to achieve oscillation.
R
R
2
3
V
DD
REF
.
V
OUT