LM13700AN

Manufacturer Part NumberLM13700AN
DescriptionDual Operational Transconductance Amplifier with Linearizing Diodes and Buffers
ManufacturerNational Semiconductor
LM13700AN datasheet
 


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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 di-
odes are provided at the inputs to reduce distortion and allow
higher input levels. The result is a 10 dB signal-to-noise im-
provement 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 lev-
els) are independent of I
. This may result in performance
ABC
superior to that of the LM13600 in audio applications.
Features
n g
adjustable over 6 decades
m
Connection Diagram
Dual-In-Line and Small Outline Packages
Order Number LM13700M, LM13700N or LM13700AN
© 1999 National Semiconductor Corporation
DS007981
n Excellent g
linearity
m
n Excellent matching between amplifiers
n Linearizing diodes
n High impedance buffers
n High output signal-to-noise ratio
Applications
n Current-controlled amplifiers
n Current-controlled impedances
n Current-controlled filters
n Current-controlled oscillators
n Multiplexers
n Timers
n Sample-and-hold circuits
Top View
See NS Package Number M16A or N16A
May 1998
DS007981-2
www.national.com

LM13700AN Summary of contents