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| EL2030C EL2030C 120 MHz Current Feedback Amplifier Features b 3 dB bandwidth e 120 MHz AV e 1 b 3 dB bandwidth e 110 MHz AV e 2 0 01% differential gain and 0 01 differential phase (NTSC PAL) 0 05% differential gain and 0 02 differential phase (HDTV) Slew rate 2000 V ms 65 mA output current Drives g10V into 200X load Characterized at g5V and g15V Low voltage noise Current mode feedback Settling time of 40 ns to 0 25% for a 10V step Output short circuit protected Low cost General Description The EL2030 is a very fast wide bandwidth amplifier optimized for gains between b 10 and a 10 Built using the Elantec monolithic Complementary Bipolar process this amplifier uses current mode feedback to achieve more bandwidth at a given gain than a conventional voltage feedback operational amplifier Due to its wide operating supply range (g15V) and extremely high slew rate of 2000 V ms the EL2030 drives g10V into 200X at a frequency of 30 MHz while achieving 110 MHz of small signal bandwidth at AV e a 2 This bandwidth is still 95 MHz for a gain of a 10 On g5V supplies the amplifier maintains a 90 MHz bandwidth for AV e a 2 When used as a unity gain buffer the EL2030 has a 120 MHz bandwidth with the gain precision and low distortion of closed loop buffers The EL2030 features extremely low differential gain and phase a low noise topology that reduces noise by a factor of 2 over competing amplifiers and settling time of 40 ns to 0 25% for a 10V step The output is short circuit protected In addition datasheet limits are guaranteed for g5V and g15V supplies Elantec's products and facilities comply with applicable quality specifications See Elantec document QRA-1 Processing Monolithic Integrated Circuits Applications Video gain block Video distribution amplifier HDTV amplifier Residue amplifiers in ADC Current to voltage converter Coax cable driver Connection Diagrams Mini DIP SOL Ordering Information Part No EL2030CN EL2030CM Temp Range b 40 C to a 85 C b 40 C to a 85 C Package 8-Pin P-DIP 20-Lead SOL Outline MDP0031 MDP0027 2030 - 1 Top View December 1995 Rev F 2030 - 3 Top View Note Non-designated pins are no connects and are not electrically connected internally Manufactured under U S Patent No 4 893 091 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 EL2030C 120 MHz Current Feedback Amplifier Absolute Maximum Ratings (TA e 25 C) VS VIN DVIN PD IIN IOP g18V or 36V Supply Voltage g15V or VS Input Voltage g6V Differential Input Voltage Maximum Power Dissipation See Curves g10 mA Input Current Peak Output Current Short Circuit Protected Output Short Circuit Duration Continuous (Note 1) TA TJ TST Operating Temperature Range Operating Junction Temperature Plastic Packages Storage Temperature b 40 C to a 85 C 150 C b 65 C to a 150 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 Open Loop DC Electrical Characteristics VS e g15V Parameter VOS Description Input Offset Voltage Condition VS e g15V VS e g5V DVOS DT a IIN b IIN a RIN RL e 200X unless otherwise specified Typ 10 5 25 Max 20 30 10 15 5 10 15 25 40 50 Test Level EL2030C I III I III V I III I III II V II 10 20 I III II 05 10 05 50 80 II III II III Units mV mV mV mV mV C mA mA mA mA MX pF dB mA V mA V dB mA V mA V mA V mA V TD is 3 6in Temp 25 C TMIN TMAX 25 C TMIN TMAX Min Offset Voltage Drift a Input Current VS e g5V g15V VS e g5V g15V 25 C TMIN TMAX 25 C TMIN TMAX Full 25 C 11 b Input Current a Input Resistance 20 1 CIN CMRR b ICMR Input Capacitance Common Mode Rejection Ratio (Note 2) Input Current Common Mode Rejection (Note 2) Power Supply Rejection Ratio (Note 3) a Input Current Power VS e g5V g15V Full 25 C TMIN TMAX Full 25 C TMIN TMAX 25 C TMIN TMAX 50 60 5 PSRR a IPSR 60 70 01 Supply Rejection (Note 3) b IPSR b Input Current Power Supply Rejection (Note 3) 2 EL2030C 120 MHz Current Feedback Amplifier Open Loop DC Electrical Characteristics VS e g15V RL e 200X unless otherwise specified Parameter ROL Description Transimpedance (DVOUT D(bIIN)) VOUT e g10V VOUT e g2 5V (Note 6) AVOL Open Loop DC Voltage Gain VOUT e g10V VOUT e g2 5V (Note 6) VO IOUT ROUT IS ISC Output Voltage Swing (Note 6) Output Current (Note 9) Output Resistance Quiescent Supply Current Short Circuit Current VS e g15V Full VS e g5V VS e g15V VS e g5V VS e g15V VS e g5V 60 70 II dB Contd Temp 25 C TMIN TMAX Min 88 75 80 120 70 Typ 150 Max Test Level EL2030C II III II III Units V mA V mA V mA V mA Condition VS e g15V VS e g5V 25 C TMIN TMAX Full Full Full Full Full 25 C Full 25 C 56 12 3 60 30 65 13 35 65 35 5 15 85 21 II II II II II V II V dB V V mA mA X mA mA TD is 2 8in TD is 1 9in Closed Loop AC Electrical Characteristics VS e g15V AV e a 2 RF e 820X RG e 820X and RL e 200X Parameter SR FPBW tr tf ts DG Dw eN Note Note Note Note Note Note Note Note Note 1 2 3 4 5 6 7 8 9 Description Slew Rate (Note 7) Full Power Bandwidth (Note 4) Rise Time Fall Time Settling Time to 0 25% for 10V step (Note 5) Differential Gain (Note 8) Differential Phase (Note 8) Input Spot Noise at 1 kHz RG e 101 RF e 909 Vpp e 250 mV Condition Temp 25 C 25 C 25 C 25 C 25 C 25 C 25 C Min 1200 19 Typ 2000 31 8 3 40 0 01 0 01 4 Max Test Level EL2030C IV IV V V V V V V ms MHz ns ns % p-p p-p nV 0Hz Units A heat sink is required to keep the junction temperature below absolute maximum when the output is shorted VCM e g10V for VS e g15V For VS e g5V VCM e g2 5V VOS is measured at VS e g4 5V and at VS e g18V Both supplies are changed simultaneously Full Power Bandwidth is specified based on Slew Rate measurement FPBW e SR 2qVP Settling Time measurement techniques are shown in ``Take The Guesswork Out of Settling Time Measurements'' EDN September 19 1985 Available from the factory upon request RL e 100X VO e g10V tested at VO e g5 See test circuit NTSC (3 58 MHz) and PAL (4 43 MHz) For VS e g15V VOUT e g10V For VS g5V VOUT e g2 5V 3 EL2030C 120 MHz Current Feedback Amplifier Typical Performance Curves 2030 - 5 Figure 1 NTSC Video Differential Gain and Phase Test Set-Up Differential Gain and Phase vs Load Resistance Gain e a 1 Differential Gain and Phase vs Load Capacitance Gain e a 1 Differential Gain and Phase vs Supply Voltage Gain e a 1 Differential Gain and Phase vs Load Resistance Gain e a 2 Differential Gain and Phase vs Load Capacitance Gain e a 2 Differential Gain and Phase vs Supply Voltage Gain e a 2 2030 - 6 4 EL2030C 120 MHz Current Feedback Amplifier Typical Performance Curves Contd 2030 - 7 Figure 2 HDTV and Wideband Video Differential Gain and Phase Test Set-Up Differential Gain Error vs Frequency for Various DC Output Levels Differential Phase Error vs Frequency for Various DC Output Levels Risetime and Overshoot vs RF for AV e a 1 Bandwidth and Peaking vs RF for AV e a 1 gSlew Rate vs Supply Voltage 2030 - 8 5 EL2030C 120 MHz Current Feedback Amplifier Typical Performance Curves Risetime and Overshoot vs RF for AV e a 2 Contd Bandwidth and Peaking vs RF for AV e a 2 b 3 dB Bandwidth vs Supply Voltage Risetime and Overshoot vs RF for AV e a 10 Bandwidth and Peaking vs RF for AV e a 10 Voltage Gain vs Frequency for AV e a 2 various Capacitive Loads Risetime and Overshoot vs RF for AV e a 2 VS e g5V Bandwidth and Peaking vs RF for AV e a 2 VS e a 5V Output Settling Error vs Time 2030 - 9 6 EL2030C 120 MHz Current Feedback Amplifier Typical Performance Curves Output Settling Error vs Time VS e g5V Contd Input Offset Voltage vs Temperature Input Bias Current vs Temperature Output Swing vs Supply Voltage Transimpedance (ROL) Supply Current vs Supply Voltage Current Limit vs Temperature Power Supply Rejection vs Frequency Common Mode Rejection vs Frequency 2030 - 10 7 EL2030C 120 MHz Current Feedback Amplifier Typical Performance Curves Contd Equivalent Input Noise Long-Term Output Settling Error vs Time Long-Term Output Settling Error vs Time VS e g5V 8-Lead Plastic DIP Maximum Power Dissipation vs Ambient Temperature 20-Lead SOL Maximum Power Dissipation vs Ambient Temperature 2030 - 11 8 EL2030C 120 MHz Current Feedback Amplifier Typical Performance Curves Contd Large Signal Response Large Signal Response AV e a 1 RF e 1 kX RL e 200X VS e g15V 2030 - 12 AV e a 2 RF e RG e 820 RL e 200X VS e g15V 2030 - 13 Large Signal Response Large Signal Response AV e a 10 RF e 750 RG e 82X RL e 200X VS e g15V 2030 - 14 AV e a 2 RF e RG e 750X RL e 200X VS e g15V 2030 - 15 Burn-In Circuit Test Circuit 2030 - 16 ALL PACKAGES USE THE SAME SCHEMATIC 2030 - 17 9 EL2030C 120 MHz Current Feedback Amplifier Application Information Product Description The EL2030 is a current mode feedback amplifier similar to the industry standard EL2020 but with greatly improved AC characteristics Most significant among these are the extremely wide bandwidth and very low differential gain and phase In addition the EL2030 is fully characterized and tested at g5V and g15V supplies An industry standard way of measuring the distortion of a video component (or system) is to measure the amount of differential gain and phase error it introduces A 100 mV peak to peak sine wave at 3 58 MHz for NTSC (4 3 MHz for PAL) with 0V DC component serves as the reference The reference signal is added to a DC offset shifting the sine wave from 0V to 0 7V which is then applied to the device under test (DUT) The output signal from the DUT is compared to the reference signal The Differential Gain is a measure of the change in amplitude of the sine wave and is measured in percent The Differential Phase is a measure of the change in the phase of the sine wave and is measured in degrees Typically the maximum positive and negative deviations are summed to give peak differential gain and differential phase errors The test setup in Figure 1 was used to characterize the EL2030 For higher than NTSC and PAL frequencies an alternate Differential Gain and Phase measurement can be made using an HP3577A Network Analyser and the setup shown in Figure 2 The frequency response is normalized to gain or phase with 0V DC at the input From the normalized value a DC offset voltage is introduced and the Differential Gain or Phase is the deviation from the normalized value Power Supply Bypassing Lead Dressing It is important to bypass the power supplies of the EL2030 with 0 1 mF ceramic disc capacitors Although the lead length is not critical it should not be more the inch from the IC pins Failure to do this will result in oscillation and possible destruction of the part Another important detail is the lead length of the inputs The inputs should be designed with minimum stray capacitance and short lead lengths to avoid ringing and distortion Latch Mode The EL2030 can be damaged in certain circumstances resulting in catastrophic failure in which destructive supply currents flow in the device Specifically an input signal greater than g5 volts at currents greater than 5 mA is applied to the device when the power supply voltages are zero will result in failure of the device In addition the EL2030 will be destroyed or damaged in the same way for momentary power supply voltage reversals This could happen for example during a power turn on transient or if the power supply voltages were oscillating and the positive rail were instantaneously negative with respect to the negative rail or vice versa Video Applications The video signals that must be transmitted for modest distances are usually amplified by a device such as the EL2030 and carried via coax cable There are at least two ways to drive cables single terminated and double terminated When driving a cable it is important to terminate it properly to avoid unwanted signal reflections Single termination (75X to ground at receive end) may be sufficient for less demanding applications In general a double terminated cable (75X in series at drive end and 75X to ground at receive end) is preferred since the impedance match at both ends of the line will absorb signal reflections However when double termination is used (a total impedance of 150X) the received signal is reduced by half therefore the amplifier is usually set at a gain of 2 or higher to compensate for attenuation Differential Gain and Differential Phase Composite video signals contain intensity color hue timing and audio information in AM FM and Phase Modulation These video signals pass through many stages during their production processing archiving and transmission It is important that each stage not corrupt these signals to provide a ``high fidelity'' image to the end viewer 10 EL2030C 120 MHz Current Feedback Amplifier Video Applications Contd Video signals are 1V peak-peak in amplitude from sync tip to peak white There are 100 IRE (0 714V) of picture (from black to peak white of the transmitted signal) and 40 IRE (0 286V) of sync in a composite video signal (140 IRE e 1V) can be optimized when the supplies are increased to g15V especially at 30 MHz HDTV applications This is primarily due to a reduction in internal parasitic junction capacitance with increased power supply voltage The following table summarizes the behavior of the EL2030 at g5V and g15V for NTSC In addition 30 MHz HDTV data is included Refer to the differential gain and phase typical performance curves for more data gVs Rload Av DGain DPhase For video applications where a gain of two is used (double termination) the output of the video amplifier will be a maximum of 2V peak-peak With g5V power supply the EL2030 output swing of 3 5V is sufficient to satisfy the video output swing requirements The EL2030 can drive two double terminated coax cables under these conditions With g15V supplies driving four double terminated cables is feasible Although the EL2030's video characteristics (differential gain and phase) are impressive with g5V supplies at NTSC and PAL frequencies it Comments Single terminated Double terminated Double terminated Single terminated Double terminated Double terminated HDTV Double terminated 15V 15V 5V 15V 15V 5V 15V 75X 150X 150X 75X 150X 150X 150X 1 1 1 2 2 2 2 0 02% 0 02% 0 05% 0 02% 0 01% 0 03% 0 05% 0 03 0 02 0 02 0 08 0 02 0 09 0 02 Equivalent Circuit 2030 - 18 11 EL2030C 120 MHz Current Feedback Amplifier EL2030 Macromodel Revision A March 1992 Enhancements include PSRR CMRR and Slew Rate Limiting a input Connections b input l a Vsupply l l b Vsupply l l l output l l l l TAB WIDE l subckt M2030 Input Stage e1 10 0 3 0 1 0 vis 10 9 0V h2 9 12 vxx 1 0 r1 2 11 50 l1 11 12 48nH iinp 3 0 5mA iinm 2 0 10mA r12 3 0 2Meg Slew Rate Limiting h1 13 0 vis 600 r2 13 14 1K d1 14 0 dclamp d2 0 14 dclamp High Frequency Pole 3 l 2 l 7 l 4 l 6 e2 30 0 14 0 0 00166666666 l3 30 17 0 5mH c5 17 0 1pF r5 17 0 500 Transimpedance Stage g1 0 18 17 0 1 0 rol 18 0 150K cdp 18 0 2 8pF Output Stage q1 4 18 19 qp q2 7 18 20 qn q3 7 19 21 qn q4 4 20 22 qp r7 21 6 4 r8 22 6 4 12 TD is 6 5in EL2030C 120 MHz Current Feedback Amplifier EL2030 Macromodel ios1 7 19 2 5mA ios2 20 4 2 5mA Supply Current ips 7 4 9mA Error Terms ivos 0 23 5mA vxx 23 0 0V e4 24 3 1 0 e5 25 0 7 0 1 0 e6 26 0 4 0 1 0 r9 24 23 3K r10 25 23 1K r11 26 23 1K Models model qn npn (is e 5eb15 bf e 100 tf e 0 1nS) model qp pnp (is e 5eb15 bf e 100 tf e 0 1nS) model dclamp d(is e 1eb30 ibv e 0 266 bv e 3 7 n e 4) ends TD is 3 1in 13 Contd EL2030C 120 MHz Current Feedback Amplifier EL2030 Macromodel Contd 2030 - 19 14 BLANK 15 EL2030C EL2030C 120 MHz Current Feedback 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 WARNING Life Support Policy December 1995 Rev F 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 16 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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