LM13600 NSC | Alldatasheet

Document overview

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Technical content

Features

n gm adjustable over 6 decades n Excellent gm linearity n Excellent matching between amplifiers n Linearizing diodes n Controlled 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 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 May 1998 LM13600 Dual Operational Transconductance Amplifiers with Linearizing Diodes and Buffers © 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 36 V DC or ±18V LM13600A 44 V DC or ±22V Power Dissipation (Note 3) TA = 25˚C 570 mW Differential Input Voltage ±5V Diode Bias Current (ID )2 m A Amplifier Bias Current (IABC )2 m A Output Short Circuit Duration Continuous Buffer Output Current (Note 4) 20 mA Operating Temperature Range 0˚C to +70˚C DC Input Voltage +V S 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 Conditions LM13600 LM13600A Units Min Typ Max Min Typ Max Input Offset Voltage (VOS ) 0.4 4 0.4 1 mV Over Specified Temperature Range 2 mV I ABC = 5 µA 0.3 4 0.3 1 mV VOS Including Diodes Diode Bias Current (I D ) = 500 µA 0.5 5 0.5 2 mV Input Offset Change 5 µA ≤ IABC ≤ 500 µA 0.1 3 0.1 1 mV Input Offset Current 0.1 0.6 0.1 0.6 µA Input Bias Current 0.4 5 0.4 5 µA Over Specified Temperature Range 1 8 1 7 µA Forward Transconductance (g m ) 6700 9600 13000 7700 9600 12000 µmho Over Specified Temperature Range 5400 4000 µmho gm Tracking 0.3 0.3 dB Peak Output Current R L = 0, IABC = 5µ A 5 3 5 7 µ A R L = 0, IABC = 500 µA 350 500 650 350 500 650 µA R L = 0, Over Specified Temp Range 300 300 µA Peak Output Voltage Positive R L = ∞ ,5µ A ≤ IABC ≤ 500 µA +12 +14.2 +12 +14.2 V Negative R L = ∞ ,5µ A ≤ IABC ≤ 500 µA −12 −14.4 −12 −14.4 V Supply Current I ABC = 500 µA, Both Channels 2.6 2.6 mA VOS Sensitivity Positive Δ VOS /ΔV+ 20 150 20 150 µV/V Negative Δ VOS /ΔV− 20 150 20 150 µV/V CMRR 80 110 80 110 dB Common Mode Range Crosstalk Referred to Input (Note 6) 100 100 dB

20 Hz < f< 20 kHz

Differential Input Current IABC = 0, Input= ±4V 0.02 100 0.02 10 nA Leakage Current I ABC = 0 (Refer to Test Circuit) 0.2 100 0.2 5 nA Input Resistance 10 26 10 26 k Ω Open Loop Bandwidth 2 2 MHz Slew Rate Unity Gain Compensated 50 50 V/µs Buffer Input Current (Note 6), Except I ABC = 0 µA 0.2 0.4 0.2 0.4 µA Peak Buffer Output Voltage (Note 6) 10 10 V www.national.com 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 = 5k Ω connected from the buffer output to −VS and the input of the buffer is connected to the transconductance amplifier output. Schematic Diagram Typical Performance Characteristics One Operational Transconductance Amplifier DS007980-1 Input Offset Voltage DS007980-39 Input Offset Current DS007980-40 Input Bias Current DS007980-41 www.national.com3

Typical Performance Characteristics(Continued) Peak Output Current DS007980-42 Peak Output Voltage and Common Mode Range DS007980-43 Leakage Current DS007980-44 Input Leakage DS007980-45 Transconductance DS007980-46 Input Resistance DS007980-47 Amplifier Bias Voltage vs Amplifier Bias Current DS007980-48 Input and Output Capacitance DS007980-49 Output Resistance DS007980-50 www.national.com 4

Typical Performance Characteristics(Continued) Distortion vs Differential Input Voltage DS007980-51 Voltage vs Amplifier Bias Current DS007980-52 Output Noise vs Frequency DS007980-53 Unity Gain Follower DS007980-5 Leakage Current Test Circuit DS007980-6 Differential Input Current Test Circuit DS007980-7 www.national.com5

Q 3 and Q13, all transistors and diodes are identical in size. and it is necessary to subtract one current from the other. plifier and is proportional to IABC . FIGURE 1. Linearizing Diodes

voltage must be less than 5V to prevent zenering the inputs. zero and the capacitor discharge current is set by IC . FIGURE 14. Voltage Controlled State Variable Filter

FIGURE 31. Logarithmic Current Source

Physical Dimensionsinches (millimeters) unless otherwise noted S.O. Package (M) Order Number LM13600M Molded Dual-In-Line Package (N) Order Number LM13600N or LM13600AN www.national.com23

NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DE- VICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMI- CONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or sys- tems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose fail- ure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. 2. A critical component is any component of a life support device or system whose failure to perform can be rea- sonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. National Semiconductor Corporation Americas Tel: 1-800-272-9959 Fax: 1-800-737-7018 Email: support@nsc.com www.national.com National Semiconductor Europe Fax: +49 (0) 1 80-530 85 86 Email: europe.support@nsc.com Deutsch Tel: +49 (0) 1 80-530 85 85 English Tel: +49 (0) 1 80-532 78 32 Français Tel: +49 (0) 1 80-532 93 58 Italiano Tel: +49 (0) 1 80-534 16 80 National Semiconductor Asia Pacific Customer Response Group Tel: 65-2544466 Fax: 65-2504466 Email: sea.support@nsc.com National Semiconductor Japan Ltd. Tel: 81-3-5639-7560 Fax: 81-3-5639-7507 LM13600 Dual Operational Transconductance Amplifiers with Linearizing Diodes and Buffers National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.