Hi guys!
I have another simple project that I need help
But for this one I need to make it real. ( I need to create the board and stuff)
And I dont know which components to pick.
I will post here the schematics of the circuit
The Circuit
It's a simple circuit that need to turn on a red light if the temperature of the enviroment is below 10ºC or above 30ºC and a green one if between those values.
BUT I MUST use a Thermistor I'm not allowed to use a LM35 for example.
And to make things worse the only ones I have avaliable are 20Ω ones ( But I have 10 of them, so I can at least make a 200Ω Thermistor)
Here is a pic of the circuit I designed and it works:
The VCC on the top OpAmp is +5 and -5
And in the bottom one is 0 and -10v
So, my question is:
WHICH OPAMPS CAN I USE ?
I need a name like LM741.
Thanks a lot guys!
EDIT: Forgot to mention! The top left resistor is in fact the Thermistor! ( The top horizontal one)
I have another simple project that I need help
But for this one I need to make it real. ( I need to create the board and stuff)
And I dont know which components to pick.
I will post here the schematics of the circuit
The Circuit
It's a simple circuit that need to turn on a red light if the temperature of the enviroment is below 10ºC or above 30ºC and a green one if between those values.
BUT I MUST use a Thermistor I'm not allowed to use a LM35 for example.
And to make things worse the only ones I have avaliable are 20Ω ones ( But I have 10 of them, so I can at least make a 200Ω Thermistor)
Here is a pic of the circuit I designed and it works:
The VCC on the top OpAmp is +5 and -5
And in the bottom one is 0 and -10v
So, my question is:
WHICH OPAMPS CAN I USE ?
I need a name like LM741.
Thanks a lot guys!
EDIT: Forgot to mention! The top left resistor is in fact the Thermistor! ( The top horizontal one)