SIMPLE_BIDIRECTIONAL_BUFFER_DESIGN

Published:2009/6/22 22:47:00 Author:Jessie

This circuit shown in the figure uses two 74LS241s. When both input/output lines are high, IC-1A and IC-2B turn on, and C1 and CZ are charged to high voltage. Meanwhile, IC-1B and IC-2A are off to prevent a logic 1 latch.   (View)

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VOLTAGE_FOLLOWER

Published:2009/6/22 22:46:00 Author:Jessie

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ANALOG_NONINVERTING_SWITCHED_BUFFER

Published:2009/6/22 22:44:00 Author:May

Here is noninverting solution.   (View)

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SINGLE_SUPPLY_ac_BUFFER_AMPLIFIER

Published:2009/6/22 22:44:00 Author:May

This buffer Right be used with a single sup-ply without special considerations. The input is dc biased to mid-operating point and is ac cou-pled. Its input impedance is approximately 500 kΩ at low frequencies. Note that for dc loads ref-erenced to ground, this quiescent current is in-creased by the load current set at the input dc bias voltage.   (View)

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SINGLE_SUPPLY_PHOTODIODE_AMPLIFIER

Published:2009/6/22 22:44:00 Author:May

This circuit provides a reverse-bias operating point and output voltage offset and uses a single-polarity power supply. The floating reference voltage from TLE2425 serves to bias the diode in a reverse-polarity mode. It also provides a clamping level at the output. Consequently, linear response to illumination is maintained for a 5-V range from dark current to full sunlight conditions.   (View)

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ADC_BUFFER

Published:2009/6/22 22:42:00 Author:May

Useful for driving high-speed, 10-bit ADCs, this circuit was developed to drive an 18-MSPS 10-bit ADS. It works from ±5-V supplies.   (View)

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WIDEBAND_GENERAL_PURPOSE_BUFFER

Published:2009/6/22 22:41:00 Author:May

This circuit has unity gain and response up to 70 MHz. UI is an Analog Devices AD817.   (View)

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HI_Z_MICROPHONE_BUFFER_AMPLIFIER

Published:2009/6/22 22:39:00 Author:May

A low impedance output from a high-Z microphone can be obtained with this circuit. No voltage gain is obtained, but a power gain is obtained because the output impedance is much lower (300 Ω), with -6-dB voltage gain.   (View)

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UNITY_GAIN_ADC_BUFFER

Published:2009/6/22 22:39:00 Author:May

This buffer is suitable for ADCs of 12 bits bandwidth of 5μs or greater.The wide bandwidth of the AD845 ensures a low output impedance at higher frequencies in the voltage follower (buffer) configuration.   (View)

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BRIDGE_AMPLIFIER_WITH_LOW_NOISE_COMPENSATION

Published:2009/6/22 22:35:00 Author:May

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SINGLE_SUPPLY_BRIDGE_AMPLIFIER

Published:2009/6/22 22:33:00 Author:May

The INA118 can be used on single-power supplies of +2.7 to +36V. The figure shown is a basic single-supply circuit. The output Ref terminal is connected to ground. Zero differential input voltage will dentand an output voltage of 0V (ground). Actual output voltage swing is limited to approxi-mately 35 mV above ground, when the load is referred to ground as shown. The typical performance curve “Output Voltage”, Output Current shows how the output voltage swing varies with output current. With single-supply operation, +VIN and -VIN must both be 1.1V above ground for linear operation. You cannot, for instance, connect the inverting input to ground and measure a voltage connected to the noninverting input.To illustrate the issues affecting low-voltage operation, consider the circuit in the figure. It shows the INA118, operating from a single 3-V supply. A resistor in series with the low side of the bridge en-sures that the bridge output voltage is within the common-rqode range of the amplifier's inputs.   (View)

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OP_AMP_DIODE_LASER_DRIVER

Published:2009/6/22 22:31:00 Author:May

This circuit is one way to automatically adjust drive current using a discrete op amp. Use the transistors specified or replace them with a suitable Darlington power transistor (such as TIP 120).IC1RCA CA 313 operational amplifierR1,R5 100-kΩ potentiometerR2 10-kΩ resistorR3 3.3-kΩ potentiometerR4 10-kΩ potentiometerR6 30-Ω, 10-W resistorC1100-μF electrolytic capacitorC2 0.1-μF disc capacitorQ1 2N2101 transistorQ2 2N3585 transistorLaser RCA C86002 (or equivalent laser diode)   (View)

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Tube Power Amplifier circuit diagram(with power source)

Published:2011/7/20 20:09:00 Author:Ecco | Keyword: Tube Power Amplifier , power source

If the power amplifier coupled with good speakers and good environment, and DVD audio playback, it likes the power amplifier with the price in a few thousand dollars. The following is the power circuit diagram:   (View)

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VEHICLE_AUDIO_AMPLIFIER_INVERTER

Published:2009/6/19 4:53:00 Author:May

An audio amplifier can drive a step-up transformer to obtain 120 Vac.   (View)

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ELECTRONICALLY_CONTROLLED_VARIABLE_GAIN_VIDEO_LOOP_THROUGH_AMPLIFIER__

Published:2009/6/19 4:51:00 Author:May

An LT1228 transconductance amplifier iS used in this application The gain is adjustable from-12to+8dB.   (View)

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DIFFERENTIAL_VIDEO_LOOP_THROUGH_AMPLIFIER

Published:2009/6/19 4:47:00 Author:May

An LT1194 is used as a differential amplifier for video applications, where low cable loading is needed.   (View)

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SIMPLE_VIDEO_AMPLIFIER

Published:2009/6/19 4:38:00 Author:May

Useful for interfacing B/W TV sets with a camera or computer, this amplifier has a bandwidth of ≥10 MHz and a gain of 3X.   (View)

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2INSTRUMENTATION_AMPLIFIER

Published:2009/6/19 4:38:00 Author:May

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ULTRA_LOW_NOISE_SINGLE_SUPPLY_INSTRUMENTATION_AMPLIFIER

Published:2009/6/19 4:35:00 Author:May

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LOW_POWER_INSTRUMENTATION_AMPLIFIER

Published:2009/6/19 4:34:00 Author:May

This amplifier requires less than 20 mA from a ±15-V supply.   (View)

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