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A current-feedback amplifier is a well-known component with many uses. Its basic block diagram shows that its input stage is a voltage follower—in practice, a symmetrical emitter follower (Figure 1).
The heart of the circuit, shown in Figure 1, is situated around the three op amps at the top of the schematic. These op amps form a periodic analog staircase voltage, with six analog levels, ...
Posted in classic hacks, contests Tagged Op Amp Challenge, op-amp, phase shift oscillator, timer ← Retrotechtacular: Putting Pictures On The Wire In The 1930s ...
The op amp provides rail-to-rail I/O, which helps provide high dynamic range. The chopper architecture enables the device to achieve a high PSRR (power supply rejection ratio) of 135db and CMRR ...
We like a project that makes us think, and that was certainly the case with [MS-BOSS]’s octave downshifter that’s an entry in our current op-amp contest. Instead of resorting to an FFT,… ...
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