Current Amplifier Features General Description # # # # # # # # # The ELH0002 is a general purpose hybrid current amplifier buffer that is built on a single substrate. 400 mA pulsed output current DC to 30 MHz bandwidth 200 V/ms slew rate Low harmonic distortion High input impedanceÐ400 kX Low output impedanceÐ6X High power efficiency Operation from g 5V to g 20V Output voltage swing approaches supply voltage # MIL-STD-883 devices manufactured in U.S.A. Applications # # # # # Line driver 30 MHz buffer High-speed D/A conversion Instrumentation buffer Precision current source The ELH0002 is ideal for current buffering operational amplifiers without changing the characteristics of the Op Amp. The ELH0002 uses a completely symmetrical circuit to provide a low output impedance when both sourcing and sinking current. This means the output will drive coaxial cables and other capacitive loads with equivalent rise and fall times. ELH0002H/883/7801301XX ELH0002H/883/7801301XX The ELH0002 is specified for operation over the b 55§ C to a 125§ C military temperature range. Elantec facilities comply with MIL-I-45208A and are MILSTD-1772 certified. Elantec’s Military devices comply with MIL-STD-883B Revision C and are manufactured in our rigidly controlled, ultra-clean facilities in Milpitas, California. For additional information on Elantec’s Quality and Reliability Assurance Policy and procedures request brochure QRA-1. Equivalent Schematic Ordering Information Part No. Temp. Range Pkg. OutlineÝ ELH0002H/883B b 55§ C to a 125§ C TO-5 MDP0001 7801301XX is the DESC version of this device. 0002 – 1 Top View Case is electrically isolated. Note: All information contained in this data sheet has been carefully checked and is believed to be accurate as of the date of publication; however, this data sheet cannot be a ‘‘controlled document’’. Current revisions, if any, to these specifications are maintained at the factory and are available upon your request. We recommend checking the revision level before finalization of your design documentation. Patent pending. CMSÝ0002DS © 1989 Elantec, Inc. July 1991 Rev G 0002 – 2 ELH0002H/883/7801301XX Current Amplifier Absolute Maximum Ratings (TA e 25§ C) Supply Voltage Input Voltage Power Dissipation Ambient Storage Temperature VS VIN PD TST g 22V TA g 22V 600 mW b 65§ C to a 150§ C Operating Temperature Range ELH0002 Steady State Current Pulsed Output Current (50 ms On/1 second Off) b 55§ C to a 125§ C g 100 mA g 400 mA Important Note: All parameters having Min/Max specifications are guaranteed. The Test Level column indicates the specific device testing actually performed during production and Quality inspection. Elantec performs most electrical tests using modern high-speed automatic test equipment, specifically the LTX77 Series system. Unless otherwise noted, all tests are pulsed tests, therefore TJ e TC e TA. Test Level I II III IV V Test Procedure 100% production tested and QA sample tested per QA test plan QCX0002. 100% production tested at TA e 25§ C and QA sample tested at TA e 25§ C , TMAX and TMIN per QA test plan QCX0002. QA sample tested per QA test plan QCX0002. Parameter is guaranteed (but not tested) by Design and Characterization Data. Parameter is typical value at TA e 25§ C for information purposes only. DC Electrical Characteristics VS e g 12V, TMIN s TA s TMAX ELH0002 Description Test Conditions Min Max Test Level Units Typ g 10 g 30 I mV VOS Output Offset Voltage RS e 300X, RL e 1 kX AV Voltage Gain RS e 10 kX, RL e 1 kX, VIN e g 10 Vdc 0.95 0.97 I V/V RIN Input Impedance RS e 200 kX, VIN e g 1 Vdc , RL e 1 kX 180 400 I kX ROUT Output Impedance RS e 50X, VIN e g 1 Vdc , RS e 10 kX VO Output Voltage Swing VIN e g 12V, RL e 1 KX g 10 I V VS e g 15V, VIN e g 12V, RS e 50X, RL e 100X, TA e 25§ C g 10 I V IB Input Current RS e 10 kX, RL e 1 kX IS a Positive Supply Current RS e 10 kX, RL e 1 kX ISb Negative Supply Current RS e 10 kX, RL e 1 kX 6 X g 11 g6 g 10 I mA 6 10 I mA b6 b 10 I mA Note 1: Elantec’s ELH0002H/200 is tested to the ELH0002 DC limits at b25§ C, a 25§ C and a 125§ C, and the AC limits at 25§ C. In addition, the parts are also tested to the DC limits for VOS, AVOL with RL e 1 kX, IIN, IS a and ISb at 200§ C. 2 TD is 3.1in Parameter ELH0002H/883/7801301XX Current Amplifier AC Electrical Characteristics VS e g 12V, TA e 25§ C ELH0002 Description Test Conditions AV Voltage Gain RS e 10 kX, RL e 1 kX VIN e 3 VP-P, f e 1 kHz AI Current Gain VIN e 1 VRMS, f e 1 kHz RIN Input Impedance RS e 200 kX, VIN e 1 VRMS, RL e 1 kX, f e 1 kHz ROUT Output Impedance RL e 50X, VIN e 1 VRMS, RS e 10 kX, f e 1 kHz HD Harmonic Distortion VIN e 5 VRMS, f e 1 kHz tr Rise Time RL e 50X, DVIN e 100 mV Min Typ 0.95 0.97 Max Test Level Units I V/V 40 180 A/mA 400 6 10 0.1 7 12 I kX I X V % III ns Typical Performance Curves Maximum Power Dissipation Frequency Response Supply Current Positive Pulse Input Impedance (Magnitude & Phase) Negative Pulse 0002 – 3 3 TD is 2.2in Parameter ELH0002H/883/7801301XX Current Amplifier Typical Performance Curves Ð Contd. Burn-In Circuit Input Current 0002 – 5 0002 – 4 Typical Applications High Current Operational Amplifier Line Driver 0002 – 7 Select capacitor to adjust time response of pulse. 0002 – 6 4 ELH0002H/883/7801301XX TAB WIDE Current Amplifier ELH0002 Macromodel input l l l l l l V1 a l l l l l V2 a l l l l V1b l V2b * output l l * l l l .subckt M0002 8 1 2 7 6 4 * Models .model qp pnp (is e 10eb14 bf e 300 vaf e 60 ikf e 200mA var e 6V br e 9 a rb e 30 cje e 40pF cjc e 15pF tf e 1nS xtb e 2.0) .model qn npn (is e 10eb14 bf e 200 vaf e 200 ikf e 200mA var e 12V br e 8 a rb e 30 cje e 27pF cjc e 10pF tf e 1nS xtb e 2.0) * Resistors r1 1 10 5K r2 11 7 5K r3 3 4 2.0 r4 5 4 2.0 * Transistors q1 7 8 10 qp q4 6 11 5 qp q2 1 8 11 qn q3 2 10 3 qn .ends 5 TD is 3.2in * Connections: * * * * ELH0002H/883/7801301XX Current Amplifier ELH0002 Macromodel Ð Contd. 0002 – 9 6 7 BLANK ELH0002H/883/7801301XX ELH0002H/883/7801301XX Current Amplifier General Disclaimer Specifications contained in this data sheet are in effect as of the publication date shown. Elantec, Inc. reserves the right to make changes in the circuitry or specifications contained herein at any time without notice. Elantec, Inc. assumes no responsibility for the use of any circuits described herein and makes no representations that they are free from patent infringement. July 1991 Rev G WARNING Ð Life Support Policy Elantec, Inc. products are not authorized for and should not be used within Life Support Systems without the specific written consent of Elantec, Inc. Life Support systems are equipment intended to support or sustain life and whose failure to perform when properly used in accordance with instructions provided can be reasonably expected to result in significant personal injury or death. Users contemplating application of Elantec, Inc. products in Life Support Systems are requested to contact Elantec, Inc. factory headquarters to establish suitable terms & conditions for these applications. Elantec, Inc.’s warranty is limited to replacement of defective components and does not cover injury to persons or property or other consequential damages. Elantec, Inc. 1996 Tarob Court Milpitas, CA 95035 Telephone: (408) 945-1323 (800) 333-6314 Fax: (408) 945-9305 European Office: 44-71-482-4596 8 Printed in U.S.A.