The VCA610 is a wideband, continuously variable, voltage controlled gain amplifier. It provides lineardB gain control with high impedance inputs. It is designed to be used as a flexible gain control element in a variety of electronic systems. The VCA610 has a gain control range of 80dB (40dB to +40dB) providing both gain and attenuation for maximum flexibility in a small 8-lead SO-8 or plastic dual-in-line package. The broad attenuation range can be used for gradual or controlled channel turn-on and turn-off for applications in which abrupt gain changes can create artifacts or other errors. In addition, the output can be disabled to provide 80dB of attenuation. Group delay variation with gain is typically less than 2ns across a bandwidth of 1 to 15MHz.