JPS55146062A - Automatic tester - Google Patents

Automatic tester

Info

Publication number
JPS55146062A
JPS55146062A JP7141579A JP7141579A JPS55146062A JP S55146062 A JPS55146062 A JP S55146062A JP 7141579 A JP7141579 A JP 7141579A JP 7141579 A JP7141579 A JP 7141579A JP S55146062 A JPS55146062 A JP S55146062A
Authority
JP
Japan
Prior art keywords
input terminal
differential amplifier
input
automatic tester
potential
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP7141579A
Other languages
Japanese (ja)
Other versions
JPS5736546B2 (en
Inventor
Tokio Furuhashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP7141579A priority Critical patent/JPS55146062A/en
Publication of JPS55146062A publication Critical patent/JPS55146062A/en
Publication of JPS5736546B2 publication Critical patent/JPS5736546B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Tests Of Electronic Circuits (AREA)

Abstract

PURPOSE: To stably measure the input bias current of the differential amplifier, by providing the circuit saturating the active elements constituting one of the input terminals of the differential amplifier.
CONSTITUTION: In the automatic tester 10, the power supply 14 is inserted and connected in series with the conductor 6. Further, when the potential at the input terminal 2 of the differential amplifier 1 is higher than the potential of the input terminal 3, current flows only to the input terminal 2. In this case, a half the measuring current flowing to the power supply 14 is almost equal to the input bias current at the input terminal 2.
COPYRIGHT: (C)1980,JPO&Japio
JP7141579A 1979-06-07 1979-06-07 Automatic tester Granted JPS55146062A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7141579A JPS55146062A (en) 1979-06-07 1979-06-07 Automatic tester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7141579A JPS55146062A (en) 1979-06-07 1979-06-07 Automatic tester

Publications (2)

Publication Number Publication Date
JPS55146062A true JPS55146062A (en) 1980-11-14
JPS5736546B2 JPS5736546B2 (en) 1982-08-04

Family

ID=13459852

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7141579A Granted JPS55146062A (en) 1979-06-07 1979-06-07 Automatic tester

Country Status (1)

Country Link
JP (1) JPS55146062A (en)

Also Published As

Publication number Publication date
JPS5736546B2 (en) 1982-08-04

Similar Documents

Publication Publication Date Title
JPS5514725A (en) Error amplifier circuit
JPS5326175A (en) Electronic watch
JPS54101306A (en) Reproduction amplifier circuit for hall head
JPS55146062A (en) Automatic tester
JPS5499479A (en) Direct current measuring apparatus
JPS5644862A (en) Constant voltage constant electric current supply test device
JPS5775568A (en) Ringing converter
JPS5567660A (en) Power maker circuit
JPS5587021A (en) Gas pressure sensor
JPS5750115A (en) Gain control circuit
JPS57136813A (en) Resistance branching circuit
SU1287019A1 (en) Device for measuring currents
JPS52102659A (en) Differential amplifier
JPS5616311A (en) Transistor circuit
JPS56160611A (en) Analog quantity indicator
JPS57193109A (en) Current amplifying circuit
JPS56102105A (en) Dc coupling circuit
JPS5633563A (en) Measuring device for amplifier
JPS5721111A (en) Differential amplifier of noninverting connection
JPS5598364A (en) Maximum value detecting circuit
JPS5750107A (en) Semiconductor integrated circuit
JPS5291378A (en) Semiconductor device measuring method
JPS5658666A (en) Avometer having impedance range
JPS5679267A (en) Tester
JPS55149857A (en) Voltmeter