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Linear Power Driver works from Single Supply - 07/25/02 EDN-Design Ideas: In
low-power, single-supply analog applications, it is often desirable to maintain
precise control of voltages much greater than the positive-supply rail. The circuit in
Figure 1 allows you to amplify the input voltage, VIN, by a factor, A, which resistors
R1 and R2 set. The output voltage, VOUT, equals AVIN, where A=R2/(R1+R2). The op amp
receives its supply.....(design idea added 12/04)
LM6361/LM6364/LM6365 Fast Opamps - National Semiconductor Application Note
04-Nov-1995 / (app note added 4/02) / Offer High Speed at Low Power Consumption
Low Power Op Amp Audio Amp Intercom - The example below illustrates using an
op-amp as an audio amplifier for a simple intercom. A small 8 ohm speaker is used as a
microphone which is coupled to the op-amp input through a 0.1uF capacitor. The speaker
is sensitive to low frequencies and the small value capacitor serves to attenuate the
lower tones and produce a better overall response. You can experiment with different
value capacitors to improve the response for various speakers. The op-amp voltage gain
is determined by the ratio of the feedback resistor to the series input resistor which
is around one thousand in this case... (electronic circuit added 7/03)
Methods for Measuring Op Amp Settling Time - AN10 Linear Technology The AN10
begins with a survey of methods for measuring op amp settling time. This commentary
develops into circuits for measuring settling time to 0.0005%. Construction details
and results are presented. Appended….(app note 1/06)
Noninverting OpAmp Circuit has Simple Gain Formula - 11/28/02 EDN-Design Ideas:
Basic textbooks describe inverting and noninverting amplifiers based on operational
amplifiers. These amplifiers have different gain equations. Whereas in the inverting
configuration, the gain is the ratio of the feedback.....(design idea added 1/05)