LM13700 Datasheet | National Semiconductor

Description The LM13700 series consists of two current controlled transconductance amplifiers, each with differential inputs and a push-pull output. The two amplifiers share mon 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 d B signal-to-noise improvement referenced to 0.5 percent THD. High impedance buffers are provided which are especially designed to plement 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 Package Number M16A or N16A © 1999 National Semiconductor Corporation DS007981 .national. Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage (Note 2) LM13700 LM13700A Power Dissipation (Note 3) TA = 25˚C LM13700N, LM13700AN Differential Input Voltage Diode Bias Current (ID) Amplifier Bias Current (IABC) Output Short Circuit Duration Buffer Output Current (Note 4) 36 VDC or ± 18V 44 VDC or ± 22V 570 m W ± 5V 2 m A 2 m A Continuous 20 m A Operating Temperature Range LM13700N, LM13700AN 0˚C to +70˚C DC Input Voltage +VS to - VS Storage Temperature Range - 65˚C...