Document
EL4451C
EL4451C
Wideband Variable-Gain Amplifier Gain of 2
Features
Complete variable-gain amplifier with output amplifier requires no extra components Excellent linearity of 0 2% 70 MHz signal bandwidth Operates on g 5V to g 15V supplies All inputs are differential 400V ms slew rate l 70dB attenuation 4 MHz
General Description
The EL4451C is a complete variable gain circuit It offers wide bandwidth and excellent linearity while including a powerful output voltage amplifier drawing modest supply current The EL4451C operates on g 5V to g 15V supplies and has an analog input range of g 2V making it ideal for video signal processing AC characteristics do not change appreciably over the g 5V to g 15V supply range The circuit has an operational temperature range of b 40 C to a 85 C and is packaged in plastic 14-pin DIP and 14-lead SO The EL4451C is fabricated with Elantec’s proprietary complementary bipolar process which provides excellent signal symmetry and is free from latch up
Applications
Leveling of varying inputs Variable filters Fading Text insertion into video
Connection Diagram
Outline MDP0031 MDP0027
Ordering Information
Part No Temp Range Package EL4451CN b 40 C to a 85 C 14-Pin P-DIP EL4451CS b 40 C to a 85 C 14-Lead SO
4451-1
October 1994 Rev A
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
1994 Elantec Inc
EL4451C
Wideband Variable-Gain Amplifier Gain of 2
Absolute Maximum Ratings (TA e 25 C)
Va VS VIN DVIN IIN Positive Supply Voltage V a to Vb Supply Voltage Voltage at any Input or Feedback Difference between Pairs of Inputs or Feedback Current into any Input or Feedback Pin 16 5V 33V V a to Vb 6V 4mA IOUT PD TA TS Continuous Output Current Maximum Power Dissipation Operating Temperature Range Storage Temperature Range 30mA See Curves b 40 C to a 85 C b 60 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
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