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VCA2617
SBOS326 −AUGUST 2005
Dual, Variable Gain Amplifier
FEATURES
D INDEPENDENT CHANNEL CONTROLS:
− Gain Range: 48dB − Clamping Levels − Post-Gain: 0, +6dB
DESCRIPTION
The VCA2617 is a dual-channel, continuously variable, voltage-controlled gain amplifier well-suited for a variety of ultrasound systems as well as applications in proximity detectors and test equipment. The VCA2617 uses a true variable-gain amplifier architecture, achieving very good noise performance at low gains, while not sacrificing high gain distortion performance. Following a linear-in-dB response, the VCA2617 gain can be varied over a 48dB range with a 0.2V to 2.3V control voltage. Two separate high-impedance control inputs allow for a channel independent variation of the gains.