Video-gain-block
This configuration utilizes the wide bandwidth aod speed of HA-2540. plus the output capability of HA5033. Stabilization circuitry is avoided by operating HA-2...
Video-pulse-amplifier
HA-5190 can drive the 75-0 coaxial cable with signals up to 2.5 V pk-pk without the need for current boosting. In this circuit, ...
Dc-gain-controlled-video-amplifier
This amplifier employs a cascaded op amp integrator and transistor buffer, Q1, to drive the gain control element. Except for a simple modification, the HA-51...
Video-line-driving-amplifier
Q1 and Q2 form a differential stage which single- ends into the LT1010. The capacitively terminated feedback divider gives the circuit a de gain of 1, while a...
Rgb-video-amplifier
Transistors Ql and Q2 and their associated components provide: a low-impedance output with the necessary power to drive the output stages, give increased gain ...
60W-225-400mhz-amplifier
This 60-W. 28-V broadband amplifier covers the 225-400 MHz military communications band. The amplifier may be used singly as a 60-W output stage in a 225-400 M...
Uhf-tv-preamplifier
An inexpensive. antenna-mounted, UHF-TV preamplifier can add more than 25 dB of gain. The first stage of the preamp is biased for optimum noise, the second sta...
5W-150mhz-amplifier
This circuit utilizes the MRF123 TMOS power FET. The MRF134 is a very high gain FET that is potentially unstable at both VHF and UHF frequencies. Note that a 6...
2-30Mhz-amplifier
This amplifier provides 140-W PEP nominal output power when supplied with input levels as low as 3 W. Both input and output transformers have a 4:1 turn ratio ...
10Db-gain-amplifier
This circuit design is a class A amplifier employing both ac and de feedback. Bias is stabilized at 15 mA of the collector current using de feedback from the c...
1296Mhz-solid-state-power-amplifier
The design incorporates 30-0, 1/4;.. microstrip lines on the input and output. C3, C4, C7, and C8, along with Ll, form a pi network that matches the low-input ...
Programmable-gain-differential-input-amplifier
This programmable gain circuit employs a CD4051 CMOS Analog Multiplexer as a two to four line decoder, ...
Wide-range-digitally-controlled-variable-gain-amplifier
The circuit uses the LTC1043 in a variable gain amplifier which features continuously variable gain, gain stability of 20 ppm/°C, and single-ended or diffe...
20W-audio-amplifier
This amplifier delivers 20 W into an 8-D load using a single IRF520 driving a transformer coupled output stage. This circuit is similar to the audio output sta...
Hybrid-power-amplifier
The input is ac coupled to the amplifier through C2, which blocks de signals that might also be present at the input. The Rl/Cl combination forms a low-pass fi...
6W-audio-amplifier-with-preamp
This monolithic IC, class-B, audio amplifier circuit is a 6-W car radio amplifier ...
Audio-power-amplifier
The single speaker amplifier circuit uses current feedback, rather than the more popular voltage feedback. The feedback loop is from the junction of the spea...
Class-d-power-amplifier
In this circuit, a 2-MHz clock is divided by eight in Ul, providing a stable 250-kHz carrier. Ql and Q2 buffer the clock and provide a low-impedance drive for ...
Portable-amplifier
Ul, an FET op amp needs a bipolar voltage atpins 4 and 7 with a common ground for optimum gain. You can calculate the gain by dividing R2 by Rl. Zero-set balan...
50W-audio-power-amplifier
This audio amplifier design approach employs TMOS Power FETs operating in a complementary common- source configuration. They are biased to cutoff, then turn on ...