Home        
 Semiconductor  
 Production   
   Operational
   Amplifiers
 
   Voltage
   Comparators
 
   Transistors
 
   Application
   specific   
 
   Hi-End
   solutions   
 
  Module 
 
 Contact Info    
 
   
Contract
PCB Services
 
 -    
 
 
   
 
Operational Transconductance Amplifier (OTA)
 AS3280- Dual Operational Transconductance Amplifier (OTA)
 


The AS3280 and AS3280A types consist of two variable operational amplifiers that are designed to substantially reduce the initial input offset voltage and the offset voltage variation with respect to changes in programming current. This design results in reduced "AGC thump," an objectionable characteristic of many AGC systems. Interdigitation, or crosscoupling, of critical portions of the circuit reduces the amplifier dependence upon thermal and processing variables. The AS3280 has all the generic characteristics of an operational voltage amplifier except that the forward transfer characteristics is best described by transconductance rather than voltage gain, and the output is current, not voltage. The magnitude of the output current is equal to the product of transconductance and the input voltage. This type of operational transconductance amplifier was first introduced in 1969, and it has since gained wide acceptance as a gateable, gain controlled building block for instrumentation and audio applications, such as linearization of transducer outputs, standardization of widely changing signals for data processing, multiplexing, instrumentation amplifiers operating from the nanopower range to high current and high speed comparators.

   
Datasheet

FEATURES
- Low Initial Input Offset Voltage: 500 V (Max) (AS3280A)
- Low Offset Voltage Change vs IABC: <500 V (Typ) for All Types
- Low Offset Voltage Drift: 5V/C (Max) (AS3280A)
- Excellent Matching of the Two Amplifiers for All Characteristics
- Internal Current-Driven Linearizing Diodes Reduce the External Input Current to an Offset Component
- Flexible Supply Voltage Range +2V to +15V




   Contact information

 140 Ropazu Str.,
 Riga, LV-1006, Latvia
 tel: +371 67553075
 fax: +371 67553173
 www.alfarzpp.lv
 e-mail: alfa@alfarzpp.lv
 
 
袗谢褜褎邪 袪懈谐邪 袥邪褌胁懈褟 alfa 袪袟袩袩 屑懈泻褉芯褋褏械屑褘 褌褉邪薪蟹懈褋褌芯褉 芯锌械褉邪褑懈芯薪薪褘械 褍褋懈谢懈褌械谢懈 泻芯屑锌邪褉邪褌芯褉褘 袗笑袩 笑袗袩 屑懈泻褉芯褋褏械屑邪 锌褉械芯斜褉邪蟹芯胁邪褌械谢懈 褉械谐褍谢褟褌芯褉褘 薪邪锌褉褟卸械薪懈褟 褋褌邪斜懈谢懈蟹邪褌芯褉褘 邪薪邪谢芯谐芯胁褘械 袠袦小 胁褉械屑褟蟹邪写邪褞褖懈械 懈薪褌械谐褉邪谢褜薪褘械 褋褏械屑褘 褋褏械屑邪 褌褉邪薪蟹懈褋褌芯褉薪褘械 锌邪褉褘 懈薪褋褌褉褍屑械薪褌邪谢褜薪褘泄 褍褋懈谢懈褌械谢褜 斜褘褋褌褉芯写械泄褋褌胁褍褞褖懈泄 褌邪泄屑械褉褘 邪薪邪谢芯谐芯-褑懈褎褉芯胁褘械 褑懈褎褉芯-邪薪邪谢芯谐芯胁褘械 褔邪褋褌芯褌邪 褔邪褋褌芯褌邪-薪邪锌褉褟卸械薪懈械 薪邪锌褉褟卸械薪懈械-褔邪褋褌芯褌邪 锌谢邪褋褌懈薪褘 斜懈锌芯谢褟褉薪邪褟 泻芯屑锌谢械屑械薪褌邪褉薪邪褟 BiP CBiP CMOS BiCMOS 褌械褏薪芯谢芯谐懈褟 懈褋褌芯褔薪懈泻懈 芯锌芯褉薪芯谐芯 锌褉芯褑械褋褋芯褉褘 泻芯屑锌邪褉邪褌芯褉 褋褌邪斜懈谢懈蟹邪褌芯褉 褝谢械泻褌褉芯薪懈泻邪 褝谢械泻褌褉芯薪薪褘械 泻芯屑锌芯薪械薪褌褘 泻芯褉锌褍褋 泻芯褉锌褍褋邪 DIP DIPP CerDIP QFP Au-pin Au gold plastic CerFlatpack Polyim film 褑懈褎褉芯胁邪褟 芯斜褉邪斜芯褌泻邪 褋懈谐薪邪谢 褋懈谐薪邪谢邪 薪邪锌褘谢械薪懈械 褉械蟹懈褋褌芯褉芯胁 谢邪蟹械褉薪邪褟 薪邪褋褌褉芯泄泻邪 锌邪褉邪屑械褌褉褘 褋泻褉邪泄斜懈褉芯胁邪薪懈械 锌/锌 蟹邪泻邪蟹褔懈泻 袣袛 孝袛.
 
Copyright 1996-2020 ALFA RPAR AS. All rights reserved.