• BUY ONLINE

    BUY ONLINE

    Profusion's channel for the enthusiast, audiophile, service engineer and student. Purchase a vast range of specialist parts for fast delivery.

    • A vast range of audio components shipped from stock
    • The latest products, gadgets and equipment
    • Fast delivery worldwide
    • No quibble returns
  • DESIGNER

    DESIGNER

    Profusion's channel for the Research and Development Engineer looking for inspiration and the information needed to speed through the design process and produce a winner.

    • Access a wide collection of application notes and design aids
    • Development boards
    • View product availability
  • SUPPLY

    SUPPLY CHAIN

    Profusion's channel for the supply chain professional. Registration required.

    • Profusion managed inventory buffer stock
    • Lead times and stock levels
    • RoHS and material declarations and quality certificates
    • Product status alerts
    • Equivalents and alternatives
SELECT CHANNEL

Voltage Controlled Amplifier

Hands-down the most widely used VCAs in both pro and MI applications, THAT Corporation's 2180 and 2181 series provide extremely wide dynamic range and control range, very low distortion (lowest in the trimmable 2181 series), low noise, and the all-important "deci-linear" control whereby linear changes in control port voltage result in decibel-wise changes in signal gain.

Make sure to check out THAT's extensive Design Notes for dozens of application and circuit ideas!

Part Number ManufacturerTHD typTHD maxVsminVsmaxIsDynamic RangeGain RangeTHD typ fromenPackageComments
THAT2162Q16-U THAT 0.05% 0.2%±2.25V±16V5.2mA118dB130dB0.05%-97.5dBVQSOP-16 
THAT2180AL08-U THAT 0.005% 0.01%±4V±18V2.4mA120dB130dB0.005%-98dBVSIP-8 
THAT2180BL08-U THAT 0.01% 0.02%±4V±18V2.4mA120dB130dB0.005%-98dBVSIP-8 
THAT2180CL08-U THAT 0.03% 0.05%±4V±18V2.4mA120dB130dB0.005%-98dBVSIP-8 
THAT2181AL08-U THAT 0.0025% 0.005%±4V±18V2.4mA120dB130dB0.0025%-98dBVSIP-8 
THAT2181AS08-U THAT 0.0025% 0.005%±4V±18V2.4mA120dB130dB0.0025%-98dBVSOIC-8 
THAT2181BL08-U THAT 0.004% 0.008%±4V±18V2.4mA120dB130dB0.0025%-98dBVSIP-8 
THAT2181BS08-U THAT 0.004% 0.008%±4V±18V2.4mA120dB130dB0.0025%-98dBVSOIC-8 
THAT2181CL08-U THAT 0.005% 0.02%±4V±18V2.4mA120dB130dB0.0025%-98dBVSIP-8 
THAT2181CS08-U THAT 0.005% 0.02%±4V±18V2.4mA120dB130dB0.0025%-98dBVSOIC-8 

 

Links

Application Note. Digital Gain Control with Analog VCAs
Design Note. Improving VCA performance I
Design Note. Improving VCA Performance II & III
Design Note. VCAs in a pan potentiometer application
Design Note. VCA Symmetry Auto-Trim Circuit
THAT Voltage Controlled Amplifier Selection Guide
THAT Application Notes