May 12, 2014 #1 pcsandhya82 Member level 3 Joined Jul 31, 2010 Messages 58 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 Location Bangalore Activity points 1,732 Hi, How to design a differential amplifier which converts 5V input to 3.3V output? the IC should be LM2904. Thanks.
Hi, How to design a differential amplifier which converts 5V input to 3.3V output? the IC should be LM2904. Thanks.
May 12, 2014 #2 N neddie Full Member level 5 Joined Feb 23, 2010 Messages 251 Helped 41 Reputation 82 Reaction score 35 Trophy points 1,308 Location South Africa Activity points 3,026 You need to give us a little more info here. Is the 5V signal a differential signal or single ended. Is it DC or AC. You may not get any useful answers if you don't provide enough info to start with.It's just guesswork at this stage :0)
You need to give us a little more info here. Is the 5V signal a differential signal or single ended. Is it DC or AC. You may not get any useful answers if you don't provide enough info to start with.It's just guesswork at this stage :0)
May 12, 2014 #3 pcsandhya82 Member level 3 Joined Jul 31, 2010 Messages 58 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 Location Bangalore Activity points 1,732 Sorry! Its a differential 5V DC signal.
May 12, 2014 #4 FvM Super Moderator Staff member Joined Jan 22, 2008 Messages 52,487 Helped 14,756 Reputation 29,794 Reaction score 14,121 Trophy points 1,393 Location Bochum, Germany Activity points 298,375 A standard single OP - four resistor circuit should do. As you may have guessed, the resistance ratio( R1 and R2: Rf and Rg) will 3:2. https://en.wikipedia.org/wiki/Differential_amplifier#Operational_amplifier_as_differential_amplifier
A standard single OP - four resistor circuit should do. As you may have guessed, the resistance ratio( R1 and R2: Rf and Rg) will 3:2. https://en.wikipedia.org/wiki/Differential_amplifier#Operational_amplifier_as_differential_amplifier