you can design a voltage to current converter for any range of current
but your range is low so you will need an amplifier circuit and you will have to make sure placing the resistor in the ciruit doesnot effect your ciruit
for better accuracy you will have to use precision components
you can design a voltage to current converter for any range of current
but your range is low so you will need an amplifier circuit and you will have to make sure placing the resistor in the ciruit doesnot effect your ciruit
for better accuracy you will have to use precision components
XTR is voltage to current converter and I think your requirement is opposite?
So I am not able to understand how do u plan to modify XTR to achieve your target?
If you need help first let us know about your schematics.
your current is from a current source or is it from some other circuit (then you have to design your current to voltage converter in sucah a way that it does not load your previous circuit)
Do you need to use the current in a loop (like the 4-20ma ones), or is it to be used locally? What are you using it for?
Do you prefer the XTR110, or would you rather use other parts?
What is your input voltage range?
The converter shouldn't be difficult to design, and you can probably use the XTR110 if you want. Fill us in on your needs.
The XTR looks to be (to me) quite a hassle to make work for the microAmpere range.
So, I kinda need a voltage to current schematic that is not intended to be used in a current loop, the voltage range is 0-5 Volts, the current range is 0-200uA, made of discrete components.
The XTR looks to be (to me) quite a hassle to make work for the microAmpere range.
So, I kinda need a voltage to current schematic that is not intended to be used in a current loop, the voltage range is 0-5 Volts, the current range is 0-200uA, made of discrete components.
The XTR looks to be (to me) quite a hassle to make work for the microAmpere range.
So, I kinda need a voltage to current schematic that is not intended to be used in a current loop, the voltage range is 0-5 Volts, the current range is 0-200uA, made of discrete components.
This converter my tutor is asking may not be used in a current loop, but he wants to be a schematic "as complicated as those used in a current loop", not just a resistor!
The main differences from common VCCs is that is not intented to be used in a current loop and it is for the microAmpere range.
He told us to find schematics on the internet for both and then analyse their differences in operation and role, I managed to find only conventional VCCs, and I am having a hard time to find the latter one.
(That's why I am asking here).
You are my last hope (sigh).
So, anybody with a schematic suggestion?
It could not be that hard to compile one from discrete components (right?),
I just need one ready-made for a reference.
I can't make one by myself cause I need the quote;plus there is always the possibility I could make it wrong.
This will do what you want. If you needed it to be precise, you would need to use precision resistors, replace the BJTs with small geometry MOSFETs, and use precision op amps. As shown, you will need op amps whose input common mode range includes GND, and whose output range is nearly rail-to-rail. If you need a suggestion on specific parts, it may be some time next week, because I'm on vacation right now, and only have sporadic access to a computer.
This will do what you want. If you needed it to be precise, you would need to use precision resistors, replace the BJTs with small geometry MOSFETs, and use precision op amps. As shown, you will need op amps whose input common mode range includes GND, and whose output range is nearly rail-to-rail. If you need a suggestion on specific parts, it may be some time next week, because I'm on vacation right now, and only have sporadic access to a computer.
This will do what you want. If you needed it to be precise, you would need to use precision resistors, replace the BJTs with small geometry MOSFETs, and use precision op amps. As shown, you will need op amps whose input common mode range includes GND, and whose output range is nearly rail-to-rail. If you need a suggestion on specific parts, it may be some time next week, because I'm on vacation right now, and only have sporadic access to a computer.
HI
I realized today that after seeing the Ron H posts that e-l-e-c-t-r-o was asking for Voltage to current converter
Previously i guess i missread and replied for current to voltage converter
I guess I was too habituated to design circuits for converting 4-20 mA to voltage that by seeing 4-20 mA in first post I assumed the same
and too my surprise nobody pointed out my mistake before
anyways next time I will take care to read properly before replying