zhiling0229
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Hi guys, I'm trying to build an embedded system wave file player. This is the block diagram for this system that I thought off. A microcontroller will receive an input. The microcontroller will fetch the desire wave file from the EEPROM and will send to the D/A converter and output it to the speaker. Is this workable? Need some feedback and some circuit layout would be nice
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Converting negative analog voltage to positive
zhiling0229 replied to zhiling0229's topic in Electronic Projects Design/Ideas
Thanks Audio guru your a great help ;D, Was wondering is there an alternative method instead of using another OP-AMP. -
Op-amp or trans-impedance amplifier
zhiling0229 replied to zhiling0229's topic in Electronic Projects Design/Ideas
Thanks Audio Guru, I think I have resolve part of the problem already. I'm posting a new problem in the community board hope you can help out. -
Op-amp or trans-impedance amplifier
zhiling0229 replied to zhiling0229's topic in Electronic Projects Design/Ideas
hi audio guru, I am not performing any modulation but I will be using my operational amplifier as a current to voltage converter. converting a maximum of 11.4 uA to a maximum of 2V. Do you any operational amplifier that requires a maximum of -
Op-amp or trans-impedance amplifier
zhiling0229 replied to zhiling0229's topic in Electronic Projects Design/Ideas
Thanks audio guru. But it looks kind of complex. ;D I will be using a UV photodiode which the wavelength is from 200nm to 320nm therefore the frequency will be in THz. I don't think i can filter it using the circuit. Here are the two circuits that I plan to used circuit 1 is using a general op-amp and second one is using a transimpedance amplifier. both will require to produce output in the range of 0 to 2 V(max) and the photodiode will produce a maximum of 11.47uA. Please comment on the circuit. Thanks -
Hi guys, I'm a newbie. I'm working on an amplifier for my photodiode project. I was wondering which has better performance a general purpose op-amp with a feedback loop or a trans-impedance amplifier or is there a much better way to amplify the current? I'm open to any suggestions. Thanks