поискавой системы для электроныых деталей
  Russian  ▼
ALLDATASHEETRU.COM

X  

LM139QML датащи(PDF) 10 Page - Texas Instruments

номер детали LM139QML
подробное описание детали  LOW POWER LOW OFFSET VOLTAGE QUAD COMPARATORS
Download  29 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
производитель  TI1 [Texas Instruments]
домашняя страница  http://www.ti.com
Logo TI1 - Texas Instruments

LM139QML датащи(HTML) 10 Page - Texas Instruments

Back Button LM139QML Datasheet HTML 6Page - Texas Instruments LM139QML Datasheet HTML 7Page - Texas Instruments LM139QML Datasheet HTML 8Page - Texas Instruments LM139QML Datasheet HTML 9Page - Texas Instruments LM139QML Datasheet HTML 10Page - Texas Instruments LM139QML Datasheet HTML 11Page - Texas Instruments LM139QML Datasheet HTML 12Page - Texas Instruments LM139QML Datasheet HTML 13Page - Texas Instruments LM139QML Datasheet HTML 14Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 10 / 29 page
background image
LM139AQML, LM139QML
SNOSAH8G – FEBRUARY 2005 – REVISED MARCH 2013
www.ti.com
APPLICATION HINTS
The LM139 series are high gain, wide bandwidth devices which, like most comparators, can easily oscillate if the
output lead is inadvertently allowed to capacitively couple to the inputs via stray capacitance. This shows up only
during the output voltage transition intervals as the comparator changes states. Power supply bypassing is not
required to solve this problem. Standard PC board layout is helpful as it reduces stray input-output coupling.
Reducing this input resistors to < 10 k
Ω reduces the feedback signal levels and finally, adding even a small
amount (1 to 10 mV) of positive feedback (hysteresis) causes such a rapid transition that oscillations due to stray
feedback are not possible. Simply socketing the IC and attaching resistors to the pins will cause input-output
oscillations during the small transition intervals unless hysteresis is used. If the input signal is a pulse waveform,
with relatively fast rise and fall times, hysteresis is not required.
All pins of any unused comparators should be tied to the negative supply.
The bias network of the LM139 series establishes a drain current which is independent of the magnitude of the
power supply voltage over the range of from 2 VDC to 30 VDC.
It is usually unnecessary to use a bypass capacitor across the power supply line.
The differential input voltage may be larger than V+ without damaging the device. Protection should be provided
to prevent the input voltages from going negative more than
−0.3 VDC (at 25°C). An input clamp diode can be
used as shown in the Typical Applications section.
The output of the LM139 series is the uncommitted collector of a grounded-emitter NPN output transistor. Many
collectors can be tied together to provide an output OR'ing function. An output pull-up resistor can be connected
to any available power supply voltage within the permitted supply voltage range and there is no restriction on this
voltage due to the magnitude of the voltage which is applied to the V+ terminal of the LM139A package. The
output can also be used as a simple SPST switch to ground (when a pull-up resistor is not used). The amount of
current which the output device can sink is limited by the drive available (which is independent of V+) and the
β
of this device. When the maximum current limit is reached (approximately 16 mA), the output transistor will come
out of saturation and the output voltage will rise very rapidly. The output saturation voltage is limited by the
approximately 60
Ω RSAT of the output transistor. The low offset voltage of the output transistor (1 mV) allows the
output to clamp essentially to ground level for small load currents.
Typical Applications
(V
+ = 5.0 V
DC)
Figure 6. Basic Comparator
Figure 7. Driving CMOS
10
Submit Documentation Feedback
Copyright © 2005–2013, Texas Instruments Incorporated
Product Folder Links: LM139AQML LM139QML


Аналогичный номер детали - LM139QML

производительномер деталидатащиподробное описание детали
logo
Texas Instruments
LM139QML TI1-LM139QML Datasheet
1Mb / 29P
[Old version datasheet]   LOW POWER LOW OFFSET VOLTAGE QUAD COMPARATORS
More results

Аналогичное описание - LM139QML

производительномер деталидатащиподробное описание детали
logo
Leshan Radio Company
LR339 LRC-LR339 Datasheet
134Kb / 6P
   Low Power Low Offset Voltage Quad Comparators
logo
BCD Semiconductor Manuf...
AS339,339A BCDSEMI-AS339,339A Datasheet
729Kb / 11P
   LOW POWER LOW OFFSET VOLTAGE QUAD COMPARATORS
logo
Diodes Incorporated
AS339 DIODES-AS339 Datasheet
432Kb / 12P
   LOW POWER LOW OFFSET VOLTAGE QUAD COMPARATORS
logo
National Semiconductor ...
LM139 NSC-LM139 Datasheet
465Kb / 19P
   Low Power Low Offset Voltage Quad Comparators
LM2901EP NSC-LM2901EP Datasheet
750Kb / 17P
   Low Power Low Offset Voltage Quad Comparators
logo
Tiger Electronic Co.,Lt...
LM2901D TGS-LM2901D Datasheet
249Kb / 4P
   Low Power Low Offset Voltage Quad Comparators
logo
Texas Instruments
LM139AQML TI1-LM139AQML_16 Datasheet
1Mb / 29P
[Old version datasheet]   LOW POWER LOW OFFSET VOLTAGE QUAD COMPARATORS
logo
National Semiconductor ...
LM139JAN NSC-LM139JAN Datasheet
770Kb / 20P
   Low Power Low Offset Voltage Quad Comparators
logo
Tiger Electronic Co.,Lt...
LM339D TGS-LM339D Datasheet
2Mb / 4P
   Low Power Low Offset Voltage Quad Comparators
logo
List of Unclassifed Man...
AZ339 ETC1-AZ339 Datasheet
246Kb / 9P
   LOW POWER LOW OFFSET VOLTAGE QUAD COMPARATORS
logo
Shaoxing Devechip Micro...
SDP339 SDC-SDP339 Datasheet
550Kb / 11P
   LOW POWER LOW OFFSET VOLTAGE QUAD COMPARATORS
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29


датащи скачать

Go To PDF Page


ссылки URL




Конфиденциальность
ALLDATASHEETRU.COM
Вашему бизинису помогли Аллдатащит?  [ DONATE ] 

Что такое Аллдатащит   |   реклама   |   контакт   |   Конфиденциальность   |   обмен ссыками   |   поиск по производителю
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com