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LM139A-MIL датащи(PDF) 7 Page - Texas Instruments

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номер детали LM139A-MIL
подробное описание детали  Quad Differential Comparators
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производитель  TI1 [Texas Instruments]
домашняя страница  http://www.ti.com
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LM139A-MIL датащи(HTML) 7 Page - Texas Instruments

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80- A
µ
Current Regulator
80 µA
60 µA
10 µA
VCC
10 µA
OUT
GND
IN+
IN−
Epi-FET
Diodes
Resistors
Transistors
COMPONENT COUNT
1
2
2
30
7
LM139A-MIL
www.ti.com
SLCS161 – JUNE 2017
Product Folder Links: LM139A-MIL
Submit Documentation Feedback
Copyright © 2017, Texas Instruments Incorporated
7 Detailed Description
7.1 Overview
The LM139A-MIL is a quad comparator with the ability to operate up to an absolute maximum of 36 V on the
supply pin. This standard device has proven ubiquity and versatility across a wide range of applications. This is
due to very wide supply voltages range (2 V up to 32 V), low Iq, and fast response of the device.
The open-drain output allows the user to configure the output logic low voltage (VOL) and allows the comparator
to be used in AND functionality.
7.2 Functional Block Diagram
Figure 6. Schematic (Each Comparator)
7.3 Feature Description
The comparator consists of a PNP Darlington pair input, allowing the device to operate with very high gain and
fast response with minimal input bias current. The input Darlington pair creates a limit on the input common-
mode voltage capability, allowing the comparator to accurately function from ground to (VCC – 1.5 V) differential
input. Allow for (VCC – 2 V) at cold temperature.
The output consists of an open-collector NPN (pulldown or low-side) transistor. The output NPN sinks current
when the negative input voltage is higher than the positive input voltage and the offset voltage. The VOL is
resistive and scales with the output current. See the Specifications section for VOL values with respect to the
output current.
7.4 Device Functional Modes
7.4.1 Voltage Comparison
The comparator operates solely as a voltage comparator, comparing the differential voltage between the positive
and negative pins and outputting a logic low or high impedance (logic high with pullup) based on the input
differential polarity.


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