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40kHz Light Receiver Amp - This circuit is similar to number 121 but provides more
gain and operates up to 40KHz. However it draws more power supply current. ….(designed
by David A. Johnson) |
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Composite Amplifier Improves Noise - 08/04/94 EDN-Design Ideas: Amplifying
low-signal levels for signal processing often stretches a single op amp's abilities. A
composite design can improve the input noise for detecting extremely small signals and
can enhance output-drive ability. Both the op amp's noise terms and the thermal noise
of the components limit the minimum noise in an op-amp-based design.....(design idea
added 4/02) |
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Composite Amplifiers - AN21 Linear Technology Applications often require an
amplifier that has extremely high performance in several areas. For example, high
speed and DC precision are often needed. If a single device cannot simultaneously
achieve the desired characteristics, a composite amplifier made up of two (or more)
devices can be configured to do the job. AN21 shows examples .... |
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Low Cost Very High IP3 Low Noise Amplifiers Cover 250MHz to 2300MHz - Application
Note MiniCircuits.com (app note added 04/05/06) |
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Low Noise AC Amplifier has Digital Control of Gain & Bandwidth - 02/05/04 EDN-Design
Ideas: In low-noise analog circuits, a high-gain amplifier serves at the input to
increase the SNR. The input signal level determines the input-stage gain; low-level
signals require the highest gain. It is also standard practice in |
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Low Noise Amplifier for Phase Noise Measurements - The phase noise of low noise
oscillators and signal sources is usually determined by measuring the audio noise
voltage at the output of the phase comparator in a phase-locked loop. The phase
comparator is typically a low noise doubly-balanced mixer with a phase slope from a
few tenths of a volt per radian to a few volts per radian. The low.... (added 7/03) |
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Low Noise Balanced Microphone Preamp - A discrete front end makes this balanced
microphone preamp very quiet, and it has excellent noise rejection. Since the SSM2017
has been discontinued (sad but true), and if you can't get the INA217 this may be the
ideal replacement…(added 7/03) |
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Low Noise Microphone PreAmplifier - Simple unbalanced design, suitable for
microphones, very low noise (electronic circuit added 7/03) |
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Quasiresonant Converter uses a Simple CMOS IC - 04/15/04 EDN-Design Ideas: Figure
1 shows a flyback power supply that has low noise and uses a simple CMOS 4093 IC for
its control. The electrical noise of a converter arises mainly when current switches
on. Diode recovery and charging parasitic capacitances create high di/dt, which is the
main.....(design idea added 1/05) |
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Ultra low noise low dropout regulator achieves 6 nV/√Hz noise floor - 06/23/05 EDN-Design
Ideas: LDO has ultralow-noise output.....(design idea added 07/07) |
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Very Low Noise Amplifier - The phase noise of low noise oscillators and signal
sources is usually determined by measuring the audio noise voltage at the output of
the phase comparator in a phase-locked loop. The phase comparator is typically a low
noise doubly-balanced mixer with a phase slope from a few tenths of a volt per radian
to a few volts per radian. The low.... (added 7/03) |
