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LM311DRG4 Fiches technique(PDF) 10 Page - Texas Instruments

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No de pièce LM311DRG4
Description  Quad Differential Comparators
Download  38 Pages
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

LM311DRG4 Fiches technique(HTML) 10 Page - Texas Instruments

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BAL/STRB BALANCE
IN+
IN−
450 Ω
450 Ω
2.4
kΩ
1.2 kΩ
70 Ω
2.4
kΩ
1.2 kΩ
60 Ω
400 Ω
450 Ω
2 kΩ
200 Ω
250 Ω
600 Ω
130 Ω
4 Ω
4 kΩ
VCC+
VCC−
EMIT OUT
COL OUT
750 Ω
600 Ω
Component Count
Resistors
20
Diodes
2
EPI FET
1
Transistors
22
LM111, LM211, LM311
SLCS007I – SEPTEMBER 1973 – REVISED JUNE 2015
www.ti.com
8 Detailed Description
8.1 Overview
The LM111, LM211 and LM311 are voltage comparators that have input currents nearly a thousand times lower
than legacy standard devices. They are also designed to operate over a wider range of supply voltages: from
standard ±15V op amp supplies down to the single 5-V supply used for IC logic. Their output is compatible with
RTL, DTL and TTL as well as MOS circuits. Further, they can drive lamps or relays, switching voltages up to 50
V at currents as high as 50 mA.
Both the inputs and the outputs of the LM111, LM211 or the LM311 can be isolated from system ground, and the
output can drive loads referred to ground, the positive supply or the negative supply. Offset balancing and strobe
capability are provided and outputs can be wire ORed. The LM211 is identical to the LM111, except that its
performance is specified over a
−25°C to +85°C temperature range instead of −55°C to +125°C. The LM311 has
a temperature range of 0°C to +70°C.
8.2 Functional Block Diagram
8.3 Feature Description
LMx11 consists of a PNP input stage to sense voltages near VCC–. It also contains balance and strobe pins for
external offset adjustment or trimming.
The input stage is followed by a very high gain stage for very fast response after a voltage difference on the input
pins have been sensed.
10
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Copyright © 1973–2015, Texas Instruments Incorporated
Product Folder Links: LM111 LM211 LM311


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