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| EL2009C EL2009C 90 MHz 1 Amp Buffer Amplifier Features High slew rate 3000 V ms Wide bandwidth 125 MHz RL e 50X 90 MHz RL e 10X Output current 1A continuous Output impedance 1X Short circuit protected Power package with isolated metal tab General Description 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 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 has an output short circuit current limit which will protect the device under both a DC fault condition and AC operation with reactive loads 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 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 Applications Video distribution amplifier Fast op amp booster Flash converter driver Motor driver Pulse transformer driver A T E pin driver Ordering Information Part No Temp Range Package Outline TO-220 MDP0028 EL2009CT 0 C to a 75 C Connection Diagram 5-Pin TO-220 Simplified Schematic December 1995 Rev C 2009 - 1 Top View 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 EL2009C 90 MHz 1 Amp Buffer Amplifier Absolute Maximum Ratings (TA e 25 C) VS VIN IIN PD Supply Voltage (V a b Vb) Input Voltage (Note 1) Input Current (Note 1) Power Dissipation (Note 2) g18V or 36V g15V or VS g50 mA See Curves TA TJ TST TLD Operating Temperature Range Operating Junction Temp Storage Temp Range Lead Solder Temp k10 seconds 0 C to a 75 175 b 65 C to a 150 300 C C C 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 Electrical Characteristics VS e g15V Parameter VOS Description VIN Output Offset Voltage 0 RS e 50X unless otherwise specified Limits Min b 60 b 80 b 125 b 200 b5 Test Conditions Load % Temp 25 C TMIN TMAX Typ Max 60 80 125 200 Test Level I IV I IV I I I I I Units mV mV mA mA kX VV VV VV V V X X A A mA dB TD is 3 6in IIN Input Current 0 % 25 C TMIN TMAX RIN AV1 AV2 AV3 VO1 VO2 RO1 RO2 IO Input Impedance Voltage Gain Voltage Gain Voltage Gain VS e g5V Output Voltage Swing Output Voltage Swing Output Impedance Output Impedance Output Current g12V g10V g10V 100X % 10X 10X 100X 10X g10 mA g1A 25 C 25 C 25 C 25 C 25 C 25 C 25 C 25 C 25 C TMIN TMAX 250 0 985 0 88 0 87 g13 g10 5 900 0 999 0 90 0 89 g3V g14V g12V g10V g10V g12V g11 I 15 I I I IV 09 14 1 30 60 45 18 10 (Note 3) IS PSRR Supply Current Supply Rejection (Note 4) 0 0 % % 25 C 25 C 65 I I 2 EL2009C 90 MHz 1 Amp Buffer Amplifier Electrical Characteristics VS e g15V Parameter VS a VSb SR1 SR2 tr tf BW CIN THD Description Supply Sensitivity (Note 5) Slew Rate (Note 6) Slew Rate (Note 7) Rise Fall Time b 3 dB Bandwidth g10V RS e 50X unless otherwise specified Limits Min Typ Contd Max 2 Test Level I V V V V V 1 I Units Test Conditions VIN Load % 50X 10X 10X 10X 10X Temp 25 C 25 C mV V V ms V ms ns TD is 2 1in MHz pF % 3000 2500 1250 7 90 25 g5V 25 C 25 C 25 C 25 C 25 C 100 mV 100 mV Input Capacitance Total Harmonic Distortion Note 1 If the input exceeds the ratings shown (or the supplies) or if the input voltage exceeds g7 5V then the input current must be limited to g50 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 g4 5V then VS is changed to g18V 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 Active operating area 2009 - 4 2009 - 5 2009 - 6 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 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- 3 EL2009C 90 MHz 1 Amp Buffer Amplifier Applications Information 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 output 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 Video Mux and Distribution Amp 2009 - 3 4 EL2009C 90 MHz 1 Amp Buffer Amplifier EL2009 Macromodel Connections a input l l l l subckt M2009 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 4 a Vsupply l l l 5 b Vsupply l l 1 output l 2 model qn npn (is e 5eb15 bf e 500) model qp pnp (is e 5eb15 bf e 500) ends 5 TD is 5 3in BLANK 6 BLANK 7 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 WARNING Life Support Policy December 1995 Rev C 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 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 Printed in U S A |
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