I've been using the ad8561 in the following circuit:
IN- connected to OUT- via few resistors (hystersis of few tens of mV) around 0V.
IN+ gets a sine wave signal with frequencies as low as 100Hz. When crossing the 0V point, the output toggles…
I ran into an issue when interfacing the AD623 with the AD8561 comparator.
Pin 3 of the comparator (negative input) is 'feeding' or is biased at ~1.4V. This seems to cause problems with the AD623 driving the input of the comparator.
I'm working with a mature high power Class D amplifier design, and am having some issues with noise generated in the naturally-sampled PWM modulator. This comprises a simple analog ramp generator (an op-amp based integrator, creating a roughly 150kHz…
I need to SI simulations in HSpice with the AD8561 and download the spice.cir. After changed the spice.cir to the spice.sp used in HPspice , errors happened, as figure.
however, this spice.cir can work in PSpice Soffware normally, as figure.
My aim is that the input varies between 0 to 5 volts with 500 Hz (like amplified and rectified EMG signal) and the reference is for example is 2 volt. If the input is bigger than referance the output must be 5V, for the opposite status the output must…
Hi, I have a question about using AD8561 for 100kHz or higher frequency Sine to Square Wave Conversion.
The comparator I'm using is AD8561 and the circuit diagram I set up on breadboard is
And the response I get is as follows, with sine wave…