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Analog Circuit Design Volume Three by John Hamburger, Bob Dobkin

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Chapter 397

RS232 transceivers for handheld computers withstand 10kV ESD

Sean Gold

Abstract

RS232 transceivers for handheld computers that withstand 10kV ESD are described.

Keywords

RS232 transceiver

electrostatic discharge

ESD

LT1237

LT1330

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 LT1237 addresses the above requirements. The LT1237 is a complete RS232 ...

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