If an op-amp circuit works when first powered up but then quits working, the trouble may be the result of temperature. ... Even seasoned engineers occasionally hook up an IC in mirror-image fashion, especially when working from the bottom ... It can be caused by incorrect DC design, by improper polarity of electrolytic coupling capacitors, or by use of a signal generator with a nonzeroed DC offset voltage.
|Title||:||Op Amps and Linear Integrated Circuits|
|Author||:||Richard A. Honeycutt|
|Publisher||:||Delmar Pub - 1988-01|