MCP6566 Microchip Technology Inc., MCP6566 Datasheet - Page 19

• Manufacturer Part Number: MCP6566
• Description: 1.8v Low Power Open-drain Output Comparator
• Manufacturer: Microchip Technology Inc.

4.9
4.9.1
Some applications require higher DC precision. An
easy way to solve this problem is to use an amplifier
(such as the MCP6291) to gain-up the input signal
before it reaches the comparator.
an example of this approach.
FIGURE 4-12:
Comparator.
4.9.2
Figure 4-13
windowed comparator. The AND gate produces a logic
‘1’ when the input voltage is between V
(where V
FIGURE 4-13:
© 2009 Microchip Technology Inc.
V
V
IN
REF
V
V
V
RT
IN
RB
Typical Applications
RT
R
1
PRECISE COMPARATOR
WINDOWED COMPARATOR
> V
shows one approach to designing a
MCP6291
RB
).
R
V
2
V
Precise Inverting
1/2
MCP6567
Windowed Comparator.
DD
REF
1/2
MCP6567
MCP656X
V
Figure 4-12
PU
R
V
DD
PU
RB
V
V
PU
OUT
and V
R
shows
PU
V
OUT
RT
4.9.3
A simple bistable multi-vibrator design is shown in
Figure
supplies (V
The output duty cycle changes with V
FIGURE 4-14:
V
REF
4-14. V
SS
BISTABLE MULTI-VIBRATOR
MCP6566/6R/7/9
R
= GND and V
REF
1
C
1
needs to be between the power
Bistable Multi-vibrator.
DD
MCP6566
) to achieve oscillation.
R
R
2
3
V
DS22143A-page 19
DD
REF
.
V
PU
V
R
OUT
PU