AU5517

NE5517, NE5517A, AU5517 Dual Operational Transconductance Amplifier The AU5517 and NE5517 contain two current-controlled transconductance amplifiers, each with a differential input and push-pull output. The AU5517/NE5517 offers significant design and performance advantages over similar devices for all types of programmable gain applications. Circuit performance is enhanced through the use of linearizing diodes at the inputs which enable a 10 dB signal-to-noise improvement referenced to 0.5% THD. The AU5517/NE5517 is suited for a wide variety of industrial and consumer applications. Constant impedance of the buffers on the chip allow general use of the AU5517/NE5517. These buffers are made of Darlington transistors and a biasing network that virtually eliminate the change of offset voltage due to a burst in the bias current IABC, hence eliminating the audible noise that could otherwise be heard in high quality audio applications. Features Constant Impedance Buffers DVBE of Buffer is Constant with Amplifier IBIAS Change Excellent Matching Between Amplifiers Linearizing Diodes High Output Signal-to-Noise Ratio Pb−Free Packages are Available* Applications Multiplexers Timers Electronic Music Synthesizers Dolby® HX Systems Current-Controlled Amplifiers, Filters Current-Controlled Oscillators, Impedances *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Referenc...