MCP6546U MICROCHIP [Microchip Technology], MCP6546U Datasheet - Page 16

• Manufacturer Part Number: MCP6546U
• Description: Open-Drain Output Sub-Microamp Comparators
• Manufacturer: MICROCHIP [Microchip Technology]

MCP6546/6R/6U/7/8/9
4.9
An unused amplifier in a quad package (MCP6549)
should be configured as shown in
circuit prevents the output from toggling and causing
crosstalk. It uses the minimum number of components
and draws minimal current (see
Figure
FIGURE 4-8:
DS21714E-page 16
2-18).
Unused Comparators
¼ MCP6549
–
+
Unused Comparators.
V
DD
Figure 2-15
Figure
4-8. This
and
4.10
4.10.1
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.
example of this approach.
FIGURE 4-9:
Comparator.
4.10.2
Figure 4-10
windowed comparator. The wired-OR connection
produces a high output (logic 1) when the input voltage
is between V
FIGURE 4-10:
V
V
IN
REF
V
V
V
RT
IN
RB
Typical Applications
R
1
PRECISE COMPARATOR
WINDOWED COMPARATOR
RB
shows one approach to designing a
MCP6041
and V
V
R
DD
V
2
RT
Precise Inverting
Windowed Comparator.
REF
1/2
MCP6547
© 2006 Microchip Technology Inc.
(where V
1/2
MCP6547
MCP6546
Figure 4-9
RT
V
V
PU
DD
> V
R
PU
RB
V
).
PU
V
shows an
OUT
R
PU
V
OUT