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MCP6541-E/MS データシート(PDF) 18 Page - Microchip Technology

部品番号 MCP6541-E/MS
部品情報  Push-Pull Output Sub-Microamp Comparators
PDF  34 Pages
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メーカー  MICROCHIP [Microchip Technology]
ホームページ  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP6541-E/MS データシート(HTML) 18 Page - Microchip Technology

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MCP6541/1R/1U/2/3/4
DS21696E-page 18
© 2006 Microchip Technology Inc.
4.10
Typical Applications
4.10.1
PRECISE COMPARATOR
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 4-11 shows an
example of this approach.
FIGURE 4-11:
Precise Inverting
Comparator.
4.10.2
WINDOWED COMPARATOR
Figure 4-12 shows one approach to designing a win-
dowed comparator. The AND gate produces a logic ‘1’
when the input voltage is between VRB and VRT (where
VRT > VRB).
FIGURE 4-12:
Windowed Comparator.
4.10.3
BISTABLE MULTI-VIBRATOR
A simple bistable multi-vibrator design is shown in
Figure 4-13. VREF needs to be between the power
supplies (VSS = GND and VDD) to achieve oscillation.
The output duty cycle changes with VREF.
FIGURE 4-13:
Bistable Multi-vibrator.
VREF
VDD
VDD
R1
R2
VOUT
VIN
VREF
MCP6041
MCP654X
VRT
MCP6542
VRB
VIN
1/2
MCP6542
1/2
MCP6541
VDD
R1
R2
R3
VREF
C1
VOUT



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