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Part: LM13600N
Category:
Analog & Mixed-Signal Processing
-> Amplifiers
-> Transconductance & Transimpedance Amplifiers
Description: Dual Operational Transconductance Amplifier With Linearizing Diodes And Buffers (discontinued)
Company: National Semiconductor Corporation
Datasheet: Download LM13600N datasheet File size : 41 kB
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Datasheet text preview:
LM13600 Dual Operational Transconductance Amplifiers with Linearizing Diodes and Buffers
May 1998
LM13600 Dual Operational Transconductance Amplifiers with Linearizing Diodes and Buffers
General Description
The LM13600 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. Controlled impedance buffers which are especially designed to complement the dynamic range of the amplifiers are provided. n n n n Excellent matching between amplifiers Linearizing diodes Controlled 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 n Excellent gm linearity
Connection Diagram
Dual-In-Line and Small Outline Packages
DS007980-2
Top View Order Number LM13600M, LM13600N or LM13600AN See NS Package Number M16A or N16A
© 1999 National Semiconductor Corporation
DS007980
www.national.com
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) LM13600 LM13600A Power Dissipation (Note 3) TA = 25°C 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 mW ± 5V 2 mA 2 mA Continuous 20 mA
Operating Temperature Range 0°C to +70°C DC Input Voltage +VS to -VS Storage Temperature Range -65°C to +150°C Soldering Information Dual-In-Line Package Soldering (10 seconds) 260°C Small Outline Package Vapor Phase (60 seconds) 215°C Infrared (15 seconds) 220°C See AN-450 "Surface Mounting Methods and Their Effect on Product Reliability" for other methods of soldering surface mount devices.
Electrical Characteristics (Note 5)
Parameter Input Offset Voltage (VOS) Over Specified Temperature Range IABC = 5 µA VOS Including Diodes Input Offset Change Input Offset Current Input Bias Current Over Specified Temperature Range Forward Transconductance (gm) Over Specified Temperature Range gm Tracking Peak Output Current RL = 0, IABC = 5 µA RL = 0, IABC = 500 µA RL = 0, Over Specified Temp Range RL = , 5 µA IABC 500 µA RL = , 5 µA IABC 500 µA IABC = 500 µA, Both Channels VOS/V+ VOS/V- 80 350 300 6700 5400 0.3 5 500 650 3 350 300 9600 13000 7700 4000 0.3 5 500 7 650 9600 12000 µmho µmho dB µA µA µA Diode Bias Current (ID) = 500 µA 5 µA IABC 500 µA Conditions Min LM13600 Typ 0.4 0.3 0.5 0.1 0.1 0.4 1 Max 4 4 5 3 0.6 5 8 Min LM13600A Typ 0.4 0.3 0.5 0.1 0.1 0.4 1 Max 1 2 1 2 1 0.6 5 7 mV mV mV mV mV µA µA µA Units
Peak Output Voltage Positive Negative Supply Current VOS Sensitivity Positive Negative CMRR Common Mode Range Crosstalk Differential Input Current Leakage Current Input Resistance Open Loop Bandwidth Slew Rate Buffer Input Current Peak Buffer Output Voltage Unity Gain Compensated (Note 6), Except IABC = 0 µA (Note 6) 10 Referred to Input (Note 6) 20 Hz < f < 20 kHz IABC = 0, Input = ± 4V IABC = 0 (Refer to Test Circuit) 10 20 20 110 150 150 80 20 20 110 150 150 µV/V µV/V dB V dB 10 5 nA nA k MHz V/µs 0.4 µA V +12 -12 +14.2 -14.4 2.6 +12 -12 +14.2 -14.4 2.6 V V mA
± 12
± 13.5
100 0.02 0.2 26 2 50 0.2 0.4 100 100
± 12
± 13.5
100 0.02 0.2
10
26 2 50 0.2
10
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2
Electrical Characteristics (Note 5)
(Continued)
Note 1: "Absolute Maximum Ratings" indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits. Note 2: For selections to a supply voltage above ± 22V, contact factory. Note 3: For operating at high temperatures, the device must be derated based on a 150°C maximum junction temperature and a thermal resistance of 175°C/W which applies for the device soldered in a printed circuit board, operating in still air. Note 4: Buffer output current should be limited so as to not exceed package dissipation. Note 5: These specifications apply for VS = ± 15V, TA = 25°C, amplifier bias current (IABC) = 500 µA, pins 2 and 15 open unless otherwise specified. The inputs to the buffers are grounded and outputs are open. Note 6: These specifications apply for VS = ± 15V, IABC = 500 µA, ROUT = 5 k connected from the buffer output to -VS and the input of the buffer is connected to the transconductance amplifier output.
Schematic Diagram
One Operational Transconductance Amplifier
DS007980-1
Typical Performance Characteristics
Input Offset Voltage Input Offset Current Input Bias Current
DS007980-39
DS007980-40
DS007980-41
3
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