EL2009C EL2009C 90 MHz 1 Amp Buffer Amplifier Features General Description # High slew rateÐ3000 V/ms # Wide bandwidthÐ 125 MHz @ RL e 50X 90 MHz @ RL e 10X # Output currentÐ1A continuous # Output impedanceÐ1X # Short circuit protected # Power package with isolated metal tab The EL2009 is a patented high speed bipolar monolithic buffer amplifier designed to provide currents over 1 amp at high frequencies, while drawing 40 mA of quiescent supply current. The EL2009’s 3000 V/ms slew rate and 90 MHz bandwidth driving a 10X load insures stability in fast op amp feedback loops. Elantec has applied for patents on unique circuitry within the EL2009. Applications # # # # # # The EL2009 has an output short circuit current limit which will protect the device under both a DC fault condition and AC operation with reactive loads. Video distribution amplifier Fast op amp booster Flash converter driver Motor driver Pulse transformer driver A.T.E. pin driver Ordering Information Part No. Used as an open loop buffer, the EL2009’s low output impedance (1X) gives a gain of 0.99 when driving a 100X load and 0.9 driving a 10X load. The EL2009 is constructed using Elantec’s proprietary Complementary Bipolar process that produces PNP and NPN transistors with essentially identical AC and DC characteristics. In the EL2009, the Complementary Bipolar process also insulates the package’s metal heat sink tab from all supply voltages. Therefore, the tab may be mounted to an external heat sink or the chassis without an insulator. Temp. Range Package OutlineÝ EL2009CT 0§ C to a 75§ C TO-220 MDP0028 Connection Diagram The EL2009CT is specified for operation over the 0§ C to a 75§ C temperature range and is provided in a 5-lead TO-220 plastic power package. Simplified Schematic 5-Pin TO-220 2009 – 2 Manufactured under U.S. Patent No. 4,833,424 and 4,827,223 and U.K. Patent No. 2217134. 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. © 1989 Elantec, Inc. December 1995 Rev C 2009 – 1 Top View EL2009C 90 MHz 1 Amp Buffer Amplifier Absolute Maximum Ratings (TA e 25§ C) Supply Voltage (V a b Vb) Input Voltage (Note 1) Input Current (Note 1) Power Dissipation (Note 2) VS VIN IIN PD g 18V or 36V TA TJ TST TLD g 15V or VS g 50 mA See Curves Operating Temperature Range Operating Junction Temp. Storage Temp. Range Lead Solder Temp. k10 seconds 0§ C to a 75§ C 175§ C b 65§ C to a 150§ C 300§ C 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. Parameter VOS Test Conditions Description Output Offset Voltage IIN Input Current RIN VIN Load 0 % Limits Temp Min Typ Max Test Level Units 25§ C b 60 60 I mV TMIN, TMAX b 80 80 IV mV 25§ C b 125 125 I mA 200 0 % TMIN, TMAX b 200 IV mA Input Impedance g 12V 100X 25§ C 250 900 I kX AV1 Voltage Gain g 10V % 25§ C 0.985 0.999 I V/V AV2 Voltage Gain g 10V 10X 25§ C 0.88 0.90 I V/V AV3 Voltage Gain, VS e g 5V g 3V 10X 25§ C 0.87 0.89 I V/V VO1 Output Voltage Swing g 14V 100X 25§ C g 13 I V VO2 Output Voltage Swing g 12V 10X 25§ C g 10.5 I V RO1 Output Impedance g 10V g 10 mA 25§ C 1.5 I X RO2 Output Impedance g 10V g 1A 25§ C 1.0 I X IO Output Current g 12V (Note 3) 25§ C I A TMIN, TMAX 1 IS Supply Current 0 % 25§ C 30 PSRR Supply Rejection (Note 4) 0 % 25§ C 60 2 b5 g 11 0.9 1.4 1.8 45 65 IV A I mA I dB TD is 3.6in Electrical Characteristics VS e g 15V, RS e 50X, unless otherwise specified EL2009C 90 MHz 1 Amp Buffer Amplifier Parameter Description Test Conditions VIN Limits Load Temp % 25§ C g 10V 50X 10X 25§ C g 5V 10X 25§ C Min Test Level Units Max 2 I mV/V 3000 2500 V V/ms 1250 V V/ms Typ VS a , VSb Supply Sensitivity (Note 5) SR1 Slew Rate (Note 6) SR2 Slew Rate (Note 7) tr, tf Rise/Fall Time 100 mV 10X 25§ C 7 V ns BW b 3 dB Bandwidth 100 mV 10X 25§ C 90 V MHz CIN Input Capacitance 25§ C 25 V pF THD Total Harmonic Distortion 25§ C I % 1 Note 1: If the input exceeds the ratings shown (or the supplies) or if the input voltage exceeds g 7.5V then the input current must be limited to g 50 mA. Note 2: The maximum power dissipation depends on package type, ambient temperature and heat sinking. See the characteristic curves for more details. Note 3: Force the input to a 12V and the output to a 10V and measure the output current. Repeat with b12V input and b10V on the output. Note 4: VS e g 4.5V then VS is changed to g 18V. Note 5: VS a e a 15V, VSb e 4.5V then VSb is changed to b18V and VSb e b15V, VS a e a 4.5V then VS a is changed to a 18V. Note 6: Slew Rate is measured between VOUT e a 5V and b5V. Note 7: Slew Rate is measured between VOUT e a 2.5V and b2.5V. Voltage Gain and Phase vs Frequency Active operating area 2009 – 4 Active operating area 2009 – 5 2009 – 6 and drives 15 cables. Pin 8 of the EL2020 (Disable) is used to multiplex between the inputs and can be easily expanded to accept more inputs. The circuit as shown when fully loaded has differential phase k 0.1§ and differential gain k 0.1%. The 100X resistor at the EL2009 input (R1) is necessary to stabilize the loop. The EL2009 operates with a CLASS AB output which exhibits a slight rise in output impedance when- Applications Information The EL2009 is a higher bandwidth of the EL2008. It is recommended that you read the EL2008 application section. Video Distribution Amplifier The EL2009 can drive 15 double matched 75X cables. If the EL2009 is used within an op amp feedback loop the output levels are independent of loading. The circuit below accepts 1 of 2 inputs 3 TD is 2.1in Electrical Characteristics VS e g 15V, RS e 50X, unless otherwise specified Ð Contd. EL2009C 90 MHz 1 Amp Buffer Amplifier put current never reaches zero. This will result in a CLASS A output stage with active pulldown but with the penalty of power dissipation in R2. More information about driving cables can be found in the EL2003 data sheet. Applications Information Ð Contd. ever the current it sources into the load approaches zero. In those cases, where differential gain and phase are measurably affected, resistor R2 may be added to ensure that the EL2009 out- Video Mux and Distribution Amp. 2009 – 3 4 EL2009C 90 MHz 1 Amp Buffer Amplifier EL2009 Macromodel TD is 5.3in a input * Connections: a Vsupply * l b Vsupply * l l output * l l l * l l l l .subckt M2009 4 5 1 2 * * Input Stage * e1 10 0 4 0 1.0 r1 10 0 1K rh 10 11 1K ch 11 0 1pF rc 11 12 6.3K cc 12 0 0.159pF e2 13 0 12 0 1.0 * * Output Stage * q1 1 13 14 qp q2 5 13 15 qn q3 5 14 16 qn 10 q4 1 15 19 qp 10 r2 16 2 0.2 r3 19 2 0.2 c1 14 0 1.7pF c1 15 0 1.7pF i1 5 14 5mA i2 15 1 5mA * * Bias Current * iin a 4 0 5mA * * Models * .model qn npn (is e 5eb15 bf e 500) .model qp pnp (is e 5eb15 bf e 500) * .ends 5 6 BLANK 7 BLANK EL2009C EL2009C 90 MHz 1 Amp Buffer Amplifier Package Outline MDP0028 Rev. A 5-Pin TO-220 Package 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. December 1995 Rev C 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.