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 A Voltage-Controlled Amplifier is a
three-terminal device with a signal input, a signal
output and a control voltage input. It varies its signal
gain in response to the applied control voltage. THAT Corporation Blackmer
VCAs are characterized by an exponential control
characteristic (gain varies directly in decibels -- dBs
-- with control voltage), extremely wide dynamic range,
and low signal distortion. Our latest designs are
particularly neutral in sound, imparting little or no
coloration to audio signals in and of themselves. Of
course, depending on how our parts are used, our OEM
customers can use them to apply various sorts of
coloration to the signals they process.
THAT 2181-series
Trimmable Blackmer Voltage-Controlled Amplifiers
2181-series voltage-controlled amplifiers require adjustment (trimming) to achieve their
guaranteed performance. After adjustment, however, they
boast the best performance of any IC VCA anywhere. This patented audio
technology was developed by
Gary Hebert, our Vice President for Engineering.
THAT 2180-series
Pre-trimmed Blackmer Voltage-Controlled Amplifiers
2180-series VCAs are made from the same patented silicon wafers
as our 2181s, but are pre-trimmed during wafer processing
so they require no adjustment (trimming) to achieve their
guaranteed performance
NEW!
THAT
2162 Dual Blackmer Voltage-Controlled Amplifier
The 2162 contains two high-performance
Blackmer
voltage-controlled amplifiers (VCAs). With two opposing-polarity,
voltage-sensitive control ports, they offer wide-range exponential
control of gain and attenuation with low signal distortion.
THAT2150
Series (Discontinued)
The 2150-series has been discontinued. For easy, pin-compatible
replacements, see the 2181 and 2180 Series
VCAs. More information...
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