JPS5688565A - Multiplier-divider - Google Patents

Multiplier-divider

Info

Publication number
JPS5688565A
JPS5688565A JP16539579A JP16539579A JPS5688565A JP S5688565 A JPS5688565 A JP S5688565A JP 16539579 A JP16539579 A JP 16539579A JP 16539579 A JP16539579 A JP 16539579A JP S5688565 A JPS5688565 A JP S5688565A
Authority
JP
Japan
Prior art keywords
emitter
base
current
collector
trq1
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.)
Pending
Application number
JP16539579A
Other languages
Japanese (ja)
Inventor
Masanori Ono
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.)
Yokogawa Electric Corp
Original Assignee
Yokogawa Hokushin Electric Corp
Yokogawa Electric Works 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 Yokogawa Hokushin Electric Corp, Yokogawa Electric Works Ltd filed Critical Yokogawa Hokushin Electric Corp
Priority to JP16539579A priority Critical patent/JPS5688565A/en
Publication of JPS5688565A publication Critical patent/JPS5688565A/en
Pending legal-status Critical Current

Links

Landscapes

  • Amplifiers (AREA)

Abstract

PURPOSE:To perform high-precision operation without offset adjustment, etc., by performing operation between input currents by making use of the relation between a current flowing through a transistor and its base-emitter voltage and by arranging transistors, through which the current flows, on the same substrate with characteristics uniformed. CONSTITUTION:The collector of diode-connected transistor TRQ1 is connected to current input terminal IX, the base of TRQ2 is connected to the emitter of this TRQ1, and the collector and emitter of TRQ2 are connected to current input terminal IY and a common terminal respectively. Further, TRQ3 is connected to the base of TRQ1 and current input terminal IC is connected to the collector of TRQ3, whose emitter is connected to the base of TRQ4; the emitter and collector of TRQ4 are connected to current output terminal Iout and the common terminal, and to the emitters of TRs Q1 and Q3, variable current sources S1 and S2 are connected respectively. Then, operation between input currents is performed by making use of the relations between currents flowing through TRs Q1-Q3 and their base-emitter voltages and while the offset adjustment is made unnecessary, the high-precision operation is carried out.
JP16539579A 1979-12-19 1979-12-19 Multiplier-divider Pending JPS5688565A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16539579A JPS5688565A (en) 1979-12-19 1979-12-19 Multiplier-divider

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16539579A JPS5688565A (en) 1979-12-19 1979-12-19 Multiplier-divider

Publications (1)

Publication Number Publication Date
JPS5688565A true JPS5688565A (en) 1981-07-18

Family

ID=15811579

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16539579A Pending JPS5688565A (en) 1979-12-19 1979-12-19 Multiplier-divider

Country Status (1)

Country Link
JP (1) JPS5688565A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4482977A (en) * 1982-01-07 1984-11-13 At&T Bell Laboratories Analog multiplier circuit including opposite conductivity type transistors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4482977A (en) * 1982-01-07 1984-11-13 At&T Bell Laboratories Analog multiplier circuit including opposite conductivity type transistors

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