THAT 2180 Series integrated-circuit voltage controlled amplifiers (VCAs) are very high performance current-in/current-out devices with two opposing-polarity, voltage-sensitive control ports. They offer wide-range exponential control of gain and attenuation with low signal distortion. The parts are trimmed at wafer stage for low THD and control-voltage feedthrough without further adjustment.
The VCA design takes advantage of a fully complementary dielectric isolation process which offers closely matched NPN/PNP pairs, to deliver discrete performance at IC prices. The 2180 Series is available in an 8-pin single-in-line (SIP) package.
Key Specifications
| Parameter |
Conditions |
2180A
Typical |
2180B
Typical |
2180C
Typical |
Units |
| Dynamic Range |
—
|
120
|
dB
|
||
| Gain Range |
—
|
< -100 to > +40
|
dB
|
||
| Total Harmonic Distortion |
1V 0dB gain
|
0.005
|
0.01
|
0.03
|
%
|
| Control Constant (both positive & negative-sense control available |
—
|
± 6.1
|
mV/dB
|
||
| Supply Current |
—
|
2.4
|
mA
|
||
| Power Supply Voltage |
—
|
± 4 ~ ± 18
|
V
|
||
| Output Noise |
0 dB gain
|
-98
|
dBV
|
||