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LM2903-Q1 データシート(PDF) 9 Page - Texas Instruments

部品番号 LM2903-Q1
部品情報  Dual Differential Comparators
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LM2903-Q1 データシート(HTML) 9 Page - Texas Instruments

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1OUT
1
1INí
2
1IN+
3
GND
4
8
VCC
7
2OUT
6
2INí
5
2IN+
0.12F
Ground
Bypass
Capacitor
Negative Supply or Ground
Positive Supply
0.12F
Ground
Only needed
for dual power
supplies
LM2903-Q1
www.ti.com
SLCS141E – MAY 2003 – REVISED JULY 2014
10 Power Supply Recommendations
For fast response and comparison applications with noisy or AC inputs, it is recommended to use a bypass
capacitor on the supply pin to reject any variation on the supply voltage. This variation can eat into the
comparator's input common mode range and create an inaccurate comparison.
11 Layout
11.1 Layout Guidelines
For accurate comparator applications without hysteresis it is important maintain a stable power supply with
minimized noise and glitches, which can affect the high level input common mode voltage range. In order to
achieve this, it is best to add a bypass capacitor between the supply voltage and ground. This should be
implemented on the positive power supply and negative supply (if available). If a negative supply is not being
used, do not put a capacitor between the IC's GND pin and system ground.
11.2 Layout Example
Figure 8. LM2903Q1 Layout Example
12 Device and Documentation Support
12.1 Trademarks
All trademarks are the property of their respective owners.
12.2 Electrostatic Discharge Caution
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
12.3 Glossary
SLYZ022 — TI Glossary.
This glossary lists and explains terms, acronyms, and definitions.
13 Mechanical, Packaging, and Orderable Information
The following pages include mechanical, packaging, and orderable information. This information is the most
current data available for the designated devices. This data is subject to change without notice and revision of
this document. For browser-based versions of this data sheet, refer to the left-hand navigation.
Copyright © 2003–2014, Texas Instruments Incorporated
Submit Documentation Feedback
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