Voltage Controlled Amplifiers (VCA)

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 Package Part status Availability Price
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DescriptionTechnical detailsManufacturerPurchase
THAT2162Q16-U THAT2162Q16-UQSOP-16
Active
34
1+£ 5.46
25+£ 4.22
100+£ 3.39
Dual VCATHAT2162THATBUY
THAT2180AL08-U THAT2180AL08-USIP-8
Active
275
1+£ 8.71
25+£ 6.73
100+£ 5.41
Pre-trimmed VCA (0.01%)THAT2180THATBUY
THAT2180BL08-U THAT2180BL08-USIP-8
Active
906
1+£ 5.90
25+£ 4.56
100+£ 3.67
Pre-trimmed VCA (0.02%)THAT2180THATBUY
THAT2180CL08-U THAT2180CL08-USIP-8
Active
9
1+£ 4.69
25+£ 3.62
100+£ 2.91
Pre-trimmed VCA (0.05%)THAT2180THATBUY
THAT2181AL08-U THAT2181AL08-USIP-8
Active
227
1+£ 8.46
25+£ 6.53
100+£ 5.25
Trimmable VCA (0.005%) SIL packageTHAT2181THATBUY
THAT2181AS08-U THAT2181AS08-USOIC-8
Active
163
1+£ 8.89
25+£ 6.87
100+£ 5.53
Trimmable High Performance VCATHAT2181THATBUY
THAT2181BL08-U THAT2181BL08-USIP-8
Active
>1K
1+£ 5.46
25+£ 4.22
100+£ 3.39
Trimmable VCA (0.008%) SIL packageTHAT2181THATBUY
THAT2181BS08-U THAT2181BS08-USOIC-8
Active
Out of stock
1+£ 5.64
25+£ 4.36
100+£ 3.51
Trimmable VCA (0.008%) SM packageTHAT2181THATBUY
THAT2181CL08-U THAT2181CL08-USIP-8
Active
414
1+£ 4.41
25+£ 3.40
100+£ 2.74
Trimmable VCA (0.02%) SIL packageTHAT2181THATBUY
THAT2181CS08-U THAT2181CS08-USOIC-8
Active
>1K
1+£ 4.82
25+£ 3.72
100+£ 2.99
Trimmable VCA (0.02%) SM packageTHAT2181THATBUY

Data Sheet

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