Widlar
Abstract: voltage comparator using 710 710 comparator LM102 uses of magnitude comparator tunnel diode LM102 zener BASIC COMPARATOR CIRCUITS APPLICATIONS zero crossing comparator DATASHEET TUNNEL DIODE
Text: National Semiconductor Linear Brief 6 May 1969 Robert J Widlar Apartado Postal 541 Puerto Vallarta Jalisco Mexico Monolithic voltage comparators are available today which are both fast and accurate They can detect the height of a pulse with a 5 mV accuracy within 40 ns However these
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abstract for battery level indicator using OPAMP
Abstract: equivalent IC of LM10 thermocouple flame detector Widlar flame detector adjustable zero span amplifier ic flame thermocouple detector "Microphone Preamplifier" 1.5V transistor ice point compensation feedback thermocouple operational amplifier discrete schematic
Text: New Op Amp Ideas National Semiconductor Application Note 211 Robert J. Widlar Robert C. Dobkin Mineo Yamatake December 1978 New Op Amp Ideas Abstract An op amp and voltage reference capable of single supply operation down to 1.1V is introduced. Performance is uncompromised and compares favorably with standard,
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Widlar
Abstract: IC 7327 national semiconductor Linear C1995 LM101A linear brief
Text: Robert J Widlar Apartado Postal 541 Puerto Vallarta Jalisco Mexico A feedforward compensation method increases the slew rate of the LM101A from 0 5 ms to 10V ms as an inverting amplifier This extends the usefulness of the device to frequencies an order of magnitude higher than the standard
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LM101A
Widlar
IC 7327
national semiconductor Linear
C1995
linear brief
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"Proximity Sensor" suitable for line follower
Abstract: Widlar Yamatake PROXIMITY SENSORS flame detector lm10 de 980X thermocouple flame detector C1995 LM10 LM108
Text: Robert J Widlar Apartado Postal 541 Puerto Vallarta Jalisco Mexico Abstract An op amp and voltage reference capable of single supply operation down to 1 1V is introduced Performance is uncompromised and compares favorably with standard state-of-the-art devices In a departure from conventional approaches the circuit can operate in a floating
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square root extractor
Abstract: LM101 LM102 LM709 LM709 equivalent Widlar LM101 disadvantages square root extractor using log antilog LM709 AN007357 square root extractor application LM7104
Text: National Semiconductor Application Note 4 Robert J. Widlar April 1968 Introduction Operational amplifiers are undoubtedly the easiest and best way of performing a wide range of linear functions from simple amplification to complex analog computation. The cost of monolithic amplifiers is now less than $2.00, in large
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Widlar
Abstract: lm12 op amp 150W TRANSISTOR AUDIO AMPLIFIER 800W TRANSISTOR npn 800w inverter AN-446B frederiksen Three-Five Widlar AN-21 LM12
Text: National Semiconductor Application Note 446B April 1998 Robert J. Widlar Apartado Postal 541 steady-state conditions increases guaranteed power ratings by several times when compared to older techniques. At the same time, it dramatically lowers the peak junction temperature with worst-case fault conditions.
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Radar Antenna
Abstract: working principle of ac servo motor lm12 op amp AN-446 LM12 fast op LM318 radar position control servo motor
Text: Robert J. Widlar Apartado Postal 541 Puerto Vallarta, Jalisco, Mexico sistor array. The turn-on characteristics are controlled by keeping the output open-circuited until the total supply voltage reaches 15V. The output is also opened should the case temperature exceed 150˚C or as the supply voltage approaches the BVCEOof the output transistors. The IC withstands overvoltages to 100V.
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an008710
Radar Antenna
working principle of ac servo motor
lm12 op amp
AN-446
LM12
fast op LM318
radar position control servo motor
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Widlar
Abstract: LM101 disadvantages LM709 equivalent Q24 plus Vishay Ultronix Grand Junction CO Q81 LM108 Widlar AN-1 AN-29 C1995 LM101A
Text: National Semiconductor Application Note 29 December 1969 Robert J Widlar Apartado Postal 541 Puerto Vallarta Jalisco Mexico abstract A monolithic operational amplifier having input error currents in the order of 100 pA over a b55 C to 125 C temperature range is described Instead of FETs the circuit used
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scr driver dc motor speed control
Abstract: 5A, 50V BRIDGE-RECTIFIER BRIDGE-RECTIFIER 200w Widlar working principle of ac servo motor LM12 OP amp IC resistare LM318 regulator complete data on BRIDGE-RECTIFIER BRIDGE-RECTIFIER operation
Text: National Semiconductor Application Note 446 March 1986 Robert J Widlar Apartado Postal 541 Puerto Vallarta Jalisco Mexico Mineo Yamatake National Semiconductor Corp Santa Clara California Abstract A power op amp capable of driving g35V at g10A has been fabricated on a single silicon chip Peak
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8723 transistor
Abstract: potentiometer MOD 534 Widlar Q88-R82 Complementary Darlington Audio Power Amplifier darlington cascode second stage Exceed Perseverance Electronic Industry C1995 LM108 TP-14
Text: Low Voltage Techniques Low Voltage Techniques National Semiconductor Technical Paper 14 December 1978 Robert J Widlar Apartado Postal 541 Puerto Vallarta Jalisco Mexico Abstract A micropower operational amplifier is described that will operate from a total supply voltage of 1 1V The
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LM108
8723 transistor
potentiometer MOD 534
Widlar
Q88-R82
Complementary Darlington Audio Power Amplifier
darlington cascode second stage
Exceed Perseverance Electronic Industry
C1995
TP-14
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Widlar
Abstract: lm109k Widlar AN-21 AN-42 C1995 LM109 LM109H 6931 temperature regulator temperature-compensated zener
Text: National Semiconductor Application Note 42 February 1971 Robert J Widlar Apartado Postal 541 Puerto Vallarta Jalisco Mexico introduction Because of the relatively high current requirements of digital systems there are a number of problems associated with using one centrally-located regulator Heavy power busses
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LM11
Abstract: LM11 national lM1081 LM11 op amp transistor 8722 Widlar FETs Field Effect Transistors darlington cascode second stage P-Channel Depletion Mode Field Effect Transistor q26 fet
Text: Robert J Widlar Apartado Postal 541 Puerto Vallarta Jalisco Mexico Abstract An IC op amp design that reduces bias currents below 100 pA over a b55 C to a125 C temperature range is discussed Super-gain bipolar transistors with on-wafer trimming are used providing low offset voltage and drift
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LM108
LM11
LM11 national
lM1081
LM11 op amp
transistor 8722
Widlar
FETs Field Effect Transistors
darlington cascode second stage
P-Channel Depletion Mode Field Effect Transistor
q26 fet
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zero crossing detector
Abstract: LM111 zero crossing detector LM111 zero crossing comparator LAMP Widlar APPLICATIONS zero crossing comparator magnetic pickup C1995 LB-12 LM106
Text: National Semiconductor Linear Brief 12 January 1970 Robert J Widlar Apartado Postal 541 Puerto Vallarta Jalisco Mexico The IC voltage comparators available in the past have been designed primarily for low voltage high speed operation As a result these devices have high input error currents which
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zero crossing detector
Abstract: digital device that uses magnitude comparator AN-41 C1995 LM106 LM108 LM111 LM710 widlar
Text: Precision IC Comparator Runs from a 5V Logic Supply Precision IC Comparator Runs from a 5V Logic Supply National Semiconductor Application Note 41 October 1970 Robert J Widlar Apartado Postal 541 Puerto Vallarta Jalisco Mexico introduction In digital systems it is sometimes necessary to convert low
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digital device that uses magnitude comparator
Abstract: magnetic pickup Widlar APPLICATIONS zero crossing comparator AN-41 LM106 LM108 LM111 LM710 AN007303
Text: National Semiconductor Application Note 41 Robert J. Widlar October 1970 Introduction and the signal on the other. Clearly, an op amp can be used as a comparator, except that its response time is in the tens of microseconds which is often too slow for many applications.
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AN-41
digital device that uses magnitude comparator
magnetic pickup
Widlar
APPLICATIONS zero crossing comparator
AN-41
LM106
LM108
LM111
LM710
AN007303
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LM11 op amp
Abstract: ma709 LM11 ic 7478 jfet cascode LM11 national FET Curve Tracer National Semiconductor cable tracer circuit fet amplifier schematic AN-241
Text: Robert J Widlar Apartado Postal 541 Puerto Vallarta Jalisco Mexico Abstract New developments have dramatically reduced the error currents of IC op amps especially at high temperatures The basic techniques used to obtain this peformance are briefly described Some of the problems associated with
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IC 7479
Abstract: LM11 LM11 op amp LM11 national Widlar IC OP AMP for Piezoelectric transducers 7479 at q209 "logarithmic amplifier" LH0032
Text: National Semiconductor Application Note 242 April 1980 Robert J Widlar Apartado Postal 541 Puerto Vallarta Jalisco Mexico Bob Pease and Mineo Yamatake National Semiconductor Corporation Santa Clara California USA Abstract A new bipolar op amp design has advanced the
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Widlar
Abstract: Widlar AN-21 AN-42 LM109 LM109H LM109K temperature-compensated zener Widlar AN-1
Text: National Semiconductor Application Note 42 Robert J. Widlar February 1971 Introduction transistor, there is no convenient way to sense junction temperature so it is much more difficult to provide thermal limiting. Thermal protection is, in itself, a very good reason
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AN-42
Widlar
Widlar AN-21
AN-42
LM109
LM109H
LM109K
temperature-compensated zener
Widlar AN-1
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LM11
Abstract: LM11 op amp LM11 national LM385 1.25V zener Lem Flex current transducer LM11 data picoammeter circuit lm10 de at q209 LM334 equivalent transistor
Text: National Semiconductor Application Note 242 Robert J. Widlar Bob Pease Mineo Yamatake April 1980 Abstract: A new bipolar op amp design has advanced the state of the art by reducing offset voltage and bias current errors. Its characteristics are described here, indicating an
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AN-242
LM11
LM11 op amp
LM11 national
LM385 1.25V zener
Lem Flex current transducer
LM11 data
picoammeter circuit
lm10 de
at q209
LM334 equivalent transistor
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LM709 equivalent
Abstract: square root extractor LM7104 square root extractor using log antilog LM101 LM102 LM709 LM101 disadvantages square root extractor application LM709 Widlar LM101
Text: The Monolithic Op Amp Monolithic Op Amp Universal Linear Component National Semiconductor Application Note 4 April 1968 Robert J Widlar Apartado Postal 541 Puerto Vallarta Jalisco Mexico C1995 National Semiconductor Corporation TL H 7357 TL H 7357 – 1 Figure 1 Free-running multivibrator
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C1995
LM101
LM709 equivalent
square root extractor
LM7104
square root extractor using log antilog
LM101 LM102 LM709
LM101 disadvantages
square root extractor application
LM709
Widlar
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LM709 equivalent
Abstract: Widlar pins 2N2920 alcohol sensor abstract national semiconductor application note 29 IC OP AMP for Piezoelectric transducers 2N2920 logarithmic applications LM102A op amp transistor current booster circuit LM709
Text: National Semiconductor Application Note 29 Robert J. Widlar September 2002 Note: National Semiconductor recommends replacing 2N2920 and 2N3728 matched pairs with LM394 in all application circuits. mance is often limited by leakages in capacitors, diodes, analog switches or printed circuit boards, rather than by the
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2N2920
2N3728
LM394
LM709 equivalent
Widlar
pins 2N2920
alcohol sensor abstract
national semiconductor application note 29
IC OP AMP for Piezoelectric transducers
2N2920 logarithmic applications
LM102A
op amp transistor current booster circuit
LM709
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LM110
Abstract: high Q notch filter LM102 low pass filter Widlar LM102 LM102 notch filter MC1556 LM308 typical applications IC i voltage follower MC1456
Text: Robert J Widlar Apartado Postal 541 Puerto Vallarta Jalisco Mexico There are quite a few applications where op amps are used as voltage followers These include sample and hold circuits and active filters as well as general purpose buffers for transducers or other high-impedance signal sources The
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LM102
LM110
high Q notch filter
LM102 low pass filter
Widlar
LM102 notch filter
MC1556
LM308 typical applications
IC i voltage follower
MC1456
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K500100-3B
Abstract: national an-2 switching regulator 2n2905 replacement Widlar Regulator LM100 AN-2 ferroxcube K5-001-00/3B lm104 h 6906 isc 2n3055 transistor Widlar AN-1
Text: National Semiconductor Application Note 23 January 1969 Robert J Widlar Apartado Postal 541 Puerto Vallarta Jalisco Mexico introduction IC voltage regulators are seeing rapidly increasing usage The LM100 one of the first has already been widely accepted Designed for versatility this circuit can be used as a
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LM100
K500100-3B
national an-2 switching regulator
2n2905 replacement
Widlar
Regulator LM100 AN-2
ferroxcube K5-001-00/3B
lm104
h 6906
isc 2n3055 transistor
Widlar AN-1
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2N2369
Abstract: LF156 LM118 LT1010 LT118A 2 way video splitter circuit diagram inverter circuit dc to ac 2V to 100V transistor 1020
Text: urm Application Note 16 TECHNOLOGY August 1985 Unique 1C Buffer Enhances Op Amp Designs, Tames Fast Amplifiers Robert J. Widlar a bstract: A unity gain 1Cpower buffer that uses NPN out put transistors while avoiding the usual problems of quasi-compiementary designs is described. Free of para
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20MHz
Tcs125Â
LT1010M
LT1010C.
100mV
T0-220
2N2369
LF156
LM118
LT1010
LT118A
2 way video splitter circuit diagram
inverter circuit dc to ac 2V to 100V
transistor 1020
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