LM13700/LM13700A Dual Operational Transconductance Amplifiers with Linearizing Diodes and Buffers
May 1998
LM13700/LM1...
LM13700/LM13700A Dual Operational Transconductance
Amplifiers with Linearizing Diodes and Buffers
May 1998
LM13700/LM13700A Dual Operational Transconductance
Amplifiers with Linearizing Diodes and Buffers
General Description
The LM13700 series consists of two current controlled transconductance
amplifiers, each with differential inputs and a push-pull output. The two
amplifiers share common supplies but otherwise operate independently. Linearizing diodes are provided at the inputs to reduce distortion and allow higher input levels. The result is a 10 dB signal-to-noise improvement referenced to 0.5 percent THD. High impedance buffers are provided which are especially designed to complement the dynamic range of the
amplifiers. The output buffers of the LM13700 differ from those of the LM13600 in that their input bias currents (and hence their output DC levels) are independent of IABC. This may result in performance superior to that of the LM13600 in audio applications. n n n n n Excellent gm linearity Excellent matching between
amplifiers Linearizing diodes High impedance buffers High output signal-to-noise ratio
Applications
n n n n n n n Current-controlled
amplifiers Current-controlled impedances Current-controlled filters Current-controlled oscillators Multiplexers Timers Sample-and-hold circuits
Features
n gm adjustable over 6 decades
Connection Diagram
Dual-In-Line and Small Outline Packages
DS007981-2
Top View Order Number LM13700M, LM13700N or LM13700AN See NS Pa...