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Экологический статус

Другие варианты исполнения

LT1203 LT1203

Application Notes

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  Video Circuit Collection &mdash AN57
  PDF, 559 Кб, Файл опубликован: 2 янв 1994
  AN57, the Video Circuit Collection, features a variety of video circuits designed at LTC. The LT1204 70MHz multiplexer is featured in a number of circuits which require excellent video isolation from channel to channel. High speed voltage and current feedback amplifiers are highlighted throughout the section on video processing circuits. There is a section on applying Current Feedback Amplifiers (CFAs) and a number of articles taken from the Linear Technology magazine.
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  Application Note 57
  January 1994
  Video Circuit Collection
  Jon Munson and Frank Cox
  INTRODUCTION
  Even in a time of rapidly advancing digital image processing, analog video signal processing still remains eminently
  viable. The video A/D converters need a supply of properly
  amplified, limited, DC restored, clamped, clipped, contoured, multiplexed, faded and filtered analog video before
  they can accomplish anything. After the digital magic is
  performed, there is usually more amplifying and п¬Ѓltering
  to do as an adjunct to the D/A conversion process, not to mention all those pesky cables to drive. The analog way
  is often the most expedient and efficient, and you don’t
  have to write all that code.
  The foregoing is only partly in jest. The experienced engineer
  will use whatever method will properly get the job done;
  analog, digital or magic (more realistically, a combination
  of all three). Presented here is a collection of analog video
  circuits that have proven themselves useful. CIRCUIT INDEX
  I. Video Amplifier Selection Guide . 2 II. Video Cable Drivers . 3
  AC-Coupled Video Drivers . 3
  DC-Coupled Video Drivers . 4
  Clamped AC-Input Video Cable Driver . 5
  Twisted-Pair Video Driver and Receiver . 5 III. Video Processing Circuits . 6 …

Design Notes

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  24-Bit ADC Measures from DC to Daylight &mdash DN219
  PDF, 76 Кб, Файл опубликован: 1 дек 1999
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  24-Bit ADC Measures from DC to Daylight – Design Note 219
  Derek Redmayne
  The need to measure a wide variety of physical phenomena is increasingly important in intelligent sensors. The
  following circuit gives eight examples of the flexibility of
  the LTC В®2408 for sensing real world phenomena. The
  eight inputs of the LTC2408 are used here in a variety
  of ways that would not be practical without the dynamic
  range of the LTC2408.
  GUARD RING 5V ELECTROMETER
  INPUT
  (pH, PIEZO) 3 7 + 2 R5
  5k, 1% 6 LT1793 All of the examples shown use single-ended sensing
  and an absolute minimum of external circuitry. Inputs
  to the circuit shown range from high voltage DC to
  ultraviolet light. Output data represents amplitude or
  power levels for signals in all the AC inputs.
  L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks
  of Linear Technology Corporation. All other trademarks are the property of their
  respective owners.
  DC
  VOLTMETER
  INPUT
  1mV TO 1000V R1 …

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  4 x 4 Video Crosspoint Has 100MHz Bandwidth and 85dB Rejection at 10MHz &mdash DN81
  PDF, 80 Кб, Файл опубликован: 1 апр 1994
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  4 Г— 4 Video Crosspoint Has 100MHz Bandwidth
  and 85dB Rejection at 10MHz – Design Note 81
  John Wright
  4 Г— 4 Crosspoint
  The compact high performance 4 Г— 4 crosspoint shown
  in Figure 1 uses four LTВ®1205s to route any input to
  any or all outputs. The complete crosspoint uses only
  six SO packages, and less than six square inches of
  PC board space. The LT1254 quad current feedback
  amplifier serves as a cable driver with a gain of 2. A
  В±5V supply is used to ensure that the maximum 150В°C
  junction temperature of the LT1254 is not exceeded in
  the SO package. With this supply voltage the crosspoint
  can operate at a 70В°C ambient temperature and drive
  2V (peak or DC) on to a double-terminated 75О© video
  cable. The feedback resistors of these output amplifiers have been optimized for this supply voltage. The
  –3dB bandwidth of the crosspoint is over 100MHz with
  only 0.8dB of peaking. All Hostile Crosstalk Rejection
  is 85dB at 10MHz when a shorted input is routed to all
  outputs. Keys to attaining this high rejection include:
  1. Mount the feedback resistors for the surface mount
  LT1254 on the backside of the PC board.
  2. Keep the (–) input traces of LT1254 as short as …

Статьи

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  250MHz RGB Video Multiplexer in Space-Saving Package Drives Cables, Switches Pixels at 100MHz &mdash LT Journal
  PDF, 275 Кб, Файл опубликован: 1 ноя 1998
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  DESIGN FEATURES 250MHz RGB Video Multiplexer in
  Space-Saving Package Drives
  Cables, Switches Pixels at 100MHz
  by John Wright and
  Frank Cox Dense Process Yields
  One of the first products from LTC’s Big Performance from
  new proprietary high speed bipolar Tiny PC Board Space
  Introduction process is a 250MHz RGB (red, green,
  blue) multiplexer that is optimized for
  switching speed and makes excellent
  use of the new complementary 6GHz
  transistors. This new MUX, the
  LT1675, is designed for pixel switching in video graphics and for RGB
  routing. It is configured with three
  SPDT (single pole, double throw) RGB
  video switches and three current feedback amplifiers for direct driving of
  cables.
  The new RGB MUX is similar to the
  LT1203/LT1205 video switches combined with the LT1260 triple CFA, but
  with greatly enhanced performance
  in far less space. The boost over the
  older configuration is a factor of five
  in switching speed and a factor of 2.5 …

Модельный ряд

Классификация производителя

• Signal Conditioning > Amplifiers > Video Functions
• Signal Conditioning > Amplifiers > Operational Amplifiers (Op Amps) > High Speed Amplifiers (GBW > 50MHz) | High Voltage Amplifiers (>12V)