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  RS232 Transceivers for Hand Held Computers Withstand 10kV ESD &mdash DN64
  PDF, 81 Kb, Archivo publicado: nov 1, 1992
  Extracto del documento

  RS232 Transceivers for Hand Held Computers
  Withstand 10kV ESD -Design Note 64
  Sean Gold
  Battery-powered computers and instrumentation are
  often subjected to severe electrical stress which imposes
  some stringent demands on serial communication interfaces. As always, operating from a battery mandates
  minimal power consumption. Transceivers must also
  tolerate repetitive electrostatic discharge (ESD) pulses
  because cable connections frequently come in contact
  with humans and other charged bodies.
  ® Linear Technology’s LT 1237 addresses the above
  requirements. The LT1237 is a complete RS232 port,
  with three drivers, п¬Ѓve receivers and a regulated charge
  pump. Supply current is typically 6mA, but the device can
  be shut down with two separate logic controls. The driver
  disable pin shuts off the charge pump and the drivers –
  leaving all receivers active, ISUPPLY = 4mA. The ON/OFF
  pin shuts down all circuitry except for one micropower
  receiver, ISUPPLY = 60ОјA. The active receiver is useful
  for detecting start-up signals. The LT1237 operates up
  to 120kBaud and is fully compliant with all RS232 specifications. Connections to the RS232 cable are protected
  with internal ESD structures that can withstand repetitive
  В±10kV human body model ESD pulses. …

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• Interface > RS232/RS562 Transceivers

Otros nombres:

LT1237CGPBF, LT1237CG PBF