R ramu01 New Member Jul 30, 2008 #1 ppl, we all know the simple opamp adder circuit. this works fine with DC sources. this works well with AC sources with freq range of 0 to 1MHz too.. but can you suggest me an efficient high speed adder circuit to instantly add two signals of freq 250 MHz ??
ppl, we all know the simple opamp adder circuit. this works fine with DC sources. this works well with AC sources with freq range of 0 to 1MHz too.. but can you suggest me an efficient high speed adder circuit to instantly add two signals of freq 250 MHz ??
Mikebits Well-Known Member Jul 30, 2008 #2 Just google High speed op amps. There are op amps that operate at 250MHz. Here is one example. https://www.analog.com/en/amplifier...-amps/ad8000/products/product.html#quicklinks
Just google High speed op amps. There are op amps that operate at 250MHz. Here is one example. https://www.analog.com/en/amplifier...-amps/ad8000/products/product.html#quicklinks
Hero999 Banned Jul 31, 2008 #3 Do you need any amplification? Is some attenuation acceptable? Is the impedance of the load constant? You don't need an op-amp, just join the two sources together with a couply of resistors.
Do you need any amplification? Is some attenuation acceptable? Is the impedance of the load constant? You don't need an op-amp, just join the two sources together with a couply of resistors.