SECTION 7-1

Passive Components

James Bryant, Walt Jung and Walt Kester

Introduction

When designing with op amps and other precision analog devices, it is critical that users avoid the pitfall of poor passive component choice. In fact, the wrong passive component can derail even the best op amp or data converter application. This section includes discussion of some basic traps of choosing passive components for op amp applications.

So, good money has been spent for a precision op amp or data converter, only to find that, when plugged into the board, the device doesn’t meet spec. Perhaps the circuit suffers from drift, poor frequency response, and oscillations—or simply doesn’t achieve expected accuracy. Well, before blaming the device, closely ...

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