LM3146 High Voltage Transistor Array
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1 LM3146 High Voltage Transistor Array General Description The LM3146 consists of five high voltage general purpose silicon NPN transistors on a common monolithic substrate Two of the transistors are internally connected to form a differentially-connected pair The transistors are well suited to a wide variety of applications in low power system in the dc through VHF range They may be used as discrete transistors in conventional circuits however in addition they provide the very significant inherent integrated circuit advantages of close electrical and thermal matching The LM3146 is supplied in a 14-lead molded dual-in-line package for applications requiring only a limited temperature range Connection Diagram Features February 1995 Y High voltage matched pairs of transistors VBE matched g5 mv input offset current 2 ma max at I C e 1mA Y Five general purpose monolithic transistors Y Operation from dc to 120 MHz Y Wide operating current range Y Low noise figure 3 2 db typ at 1 khz Applications Y Y Y General use in all types of signal processing systems operating anywhere in the frequency range from dc to VHF Custom designed differential amplifiers Temperature compensated amplifiers LM3146 High Voltage Transistor Array Dual-In-Line and Small Outline Packages Top View Order Number LM3146M or LM3146N See NS Package Number M14A or N14A TL H C1995 National Semiconductor Corporation TL H 7959 RRD-B30M115 Printed in U S A
2 Absolute Maximum Ratings If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications LM3146 Units Power Dissipation Each transistor T A e 25 Cto55 C 300 mw T A l 55 C Derate at 6 67 mw C Power Dissipation Total Package T A e 25 C 500 mw T A l 25 C Derate at 6 67 mw C Collector to Emitter Voltage V CEO 30 V Collector to Base Voltage V CBO 40 V Collector to Substrate Voltage V CIO (Note 1) 40 V Emitter to Base Voltage V EBO (Note 2) 5 V Collector to Current I C 50 ma Operating Temperature Range b40 to a85 C Storage Temperature Range b65 to a150 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 DC Electrical Characteristics T A e 25 C Symbol Parameter Conditions Limits Min Typ Max V (BR)CBO Collector to Base Breakdown Voltage I C e 10 ma I E e V V (BR)CEO Collector to Emitter Breakdown Voltage I C e 1 ma I B e V V (BR)CIO Collector to Substrate Breakdown I CI e 10 ma I B e 0 Voltage I E e0 V (BR)EBO Emitter to Base Breakdown Voltage (Note 2) Units V I C e 0 I E e 10 ma 5 7 V I CBO Collector Cutoff Current V CB e 10V I E e na I CEO Collector Cutoff Current V CE e 10V I B e 0 (Note 3) 5 ma h FE Static Forward Current Transfer I C e 10 ma V CE e 5V 85 Ratio (Static Beta) I C e 1 ma V CE e 5V I C e 10 ma V CE e 5V 90 I B1 I B2 Input Offset Current for Matched I C1 e 1 C2 e 1 ma Pair Q1 and Q2 V CE e 5V ma V BE Base to Emitter Voltage I C e 1 ma V CE e 3V V V BE1 V BE2 Magnitude of Input Offset Voltage V CE e 5V I E e 1mA for Differential Pair DV BE DT Temperature Coefficient of Base V CE e 5V I E e 1mA to Emitter Voltage V CE(SAT) Collector to Emitter Saturation I C e 10 ma I B e 1mA Voltage DV 10 DT Temperature Coefficient of Input I C e 1 ma V CE e 5V Offset Voltage mv b mv C Note 1 The collector of each transistor is isolated from the substrate by an integral diode The substrate must be connected to a voltage which is more negative than any collector voltage in order to maintain isolation between transistors and provide normal transistor action To avoid undesired coupling between transistors the substrate terminal should be maintained at either dc or signal (ac) ground A suitable bypass capacitor can be used to establish a signal ground Note 2 If the transistors are forced into zener breakdown (V (BR)EBO ) degradation of forward transfer current ratio (h FE ) can occur Note 3 See curve V mv C 2
3 AC Electrical Characteristics Symbol Parameter Conditions NF Low Frequency Noise Figure f e 1 khz V CE e 5V I C e 100 ma R S e 1kX Limits Min Typ Max f T Gain Bandwidth Product V CE e 5V I C e 3 ma MHz C EB Emitter to Base Capacitance V EB e 5V I E e pf C CB Collector to Base Capacitance V CB e 5V I C e pf C CI Collector to Substrate Capacitance V CI e 5V I C e pf Low Frequency Small Signal Equivalent Circuit Characteristics h fe Forward Current Transfer Ratio f e 1 khz V CE e 3V I C e 1 ma 100 h ie Short Circuit Input Impedance f e 1 khz V CE e 3V I C e 1 ma 3 5 kx h oe Open Circuit Output Impedance f e 1 khz V CE e 3V I C e 1 ma 15 6 mmho h re Open Circuit Reverse Voltage f e 1 khz V CE e 3V 1 8 x 10 b4 Transfer Ratio I C e 1mA Admittance Characteristics Y fe Forward Transfer Admittance f e 1 MHz V CE e 3V I C e 1mA 31bj 1 5 mmho Y ie Input Admittance f e 1 MHz V CE e 3V I C e 1 ma 0 3 a j 0 04 mmho Y oe Output Admittance f e 1 MHz V CE e 3V I C e 1 ma a j 0 03 mmho Y re Reverse Transfer Admittance f e 1 MHz V CE e 3V I C e 1 ma (Note 3) mmho Note 1 The collector of each transistor is isolated from the substrate by an integral diode The substrate must be connected to a voltage which is more negative than any collector voltage in order to maintain isolation between transistors and provide normal transistor action To avoid undesired coupling between transistors the substrate terminal should be maintained at either dc or signal (ac) ground A suitable bypass capacitor can be used to establish a signal ground Note 2 If the transistors are forced into zener breakdown (V (BR)EBO ) degradation of forward transfer current ratio (h FE ) can occur Note 3 See curve 3 25 Units db 3
4 Typical Performance Characteristics I CEO vs T A for I CBO vs T A for h FE vs I C for V BE vs T A for V CE(SAT) vs I C for I IO vs I C (Q1 and Q2) V IO vs T A for Q1 and Q2 V BE and V IO vs I E for Q1 and Q2 NF vs I C R S e 500X TL H
5 Typical Performance Characteristics (Continued) NF vs I C R S e 1kX NF vs I C e R S e 10 kx h fe h ie h oe h re vs I C Y fe vs f Y ie vs f Y oe vs f C EB C CB C CI vs Bias Y re vs f f T vs I C Voltage TL H
6 LM3146 High Voltage Transistor Array Physical Dimensions inches (millimeters) SO Package (M) Order Number LM3146M NS Package Number M14A Molded Dual-In-Line Package (N) Order Number LM3146N NS Package Number N14A LIFE SUPPORT POLICY NATIONAL S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMICONDUCTOR CORPORATION As used herein 1 Life support devices or systems are devices or 2 A critical component is any component of a life systems which (a) are intended for surgical implant support device or system whose failure to perform can into the body or (b) support or sustain life and whose be reasonably expected to cause the failure of the life failure to perform when properly used in accordance support device or system or to affect its safety or with instructions for use provided in the labeling can effectiveness be reasonably expected to result in a significant injury to the user National Semiconductor National Semiconductor National Semiconductor National Semiconductor Corporation Europe Hong Kong Ltd Japan Ltd 1111 West Bardin Road Fax (a49) th Floor Straight Block Tel Arlington TX cnjwge tevm2 nsc com Ocean Centre 5 Canton Rd Fax Tel 1(800) Deutsch Tel (a49) Tsimshatsui Kowloon Fax 1(800) English Tel (a49) Hong Kong Fran ais Tel (a49) Tel (852) Italiano Tel (a49) Fax (852) 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
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