MCP6546-ILT Microchip Technology, MCP6546-ILT Datasheet - Page 15

• Manufacturer Part Number: MCP6546-ILT
• Description: Open-Drain Output Sub-Microamp Comparators
• Manufacturer: Microchip Technology

3.9
3.9.1
Some applications require higher DC precision. An
easy way to solve this problem is to use an amplifier to
gain up the input signal before it reaches the
comparator. Figure 3-8 shows an example of this
approach.
FIGURE 3-8:
Comparator.
3.9.2
Figure 3-9 shows one approach to designing a win-
dowed comparator. The wired-OR connection pro-
duces a high output (logic 1) when the input voltage is
between V
V
2002 Microchip Technology Inc.
V
IN
REF
Typical Applications
R
RB
1
PRECISE COMPARATOR
WINDOWED COMPARATOR
and V
MCP6XXX
RT
R
V
V
2
Precise Inverting
(where V
REF
DD
RT
MCP654X
> V
RB
V
DD
).
V
OUT
FIGURE 3-9:
V
V
V
RT
IN
RB
MCP6546/7/8/9
MCP654X
MCP654X
Windowed comparator.
V
PU
DS21714B-page 15
R
PU
V
OUT