Trying to find a low range low power transmitter.

Hello I'm currently looking for a wireless transmitter that is very low power (less than 10mW) that accepts analog current inputs. I don't need much range, maybe a few meters or so. I'm primarily going to use this to transmit information from a voltmeter. I'm guessing an IC is the way to go but I haven't been able to find one that satisfied my needs. Does anyone know of a transmitter that can fulfill these requirements? Any help would be appreciated.

I don't think you will find one that reads current levels. You can use analog transmitters but they have voltage inputs and generally poor linearity and frequency response so you would have to pre-condition the current reading before passing it to the transmitter. A better solution would be to measure the current, digitize the value and send it as a digital bit stream.
What frequency are you thinking of using? And what receiver ? Bear in mind that 10mW is quite lot of power to cover such a short distance, 1mW should still be adequate.

Brian.

Hi, sorry I forgot to specify that I wanted the input power to be low. (Though for my range needs I don't think I'll need that much power) So yeah using a converter sounds like a good idea. Does anyone know of a good commercial transmitter than has a range of a few meters? (Somewhere around 5-20 meters) Also I have not yet determined the type of transceiver I'll be using.

What about 433MHz FSK module. I think it will cater your need.

If 10 mW is an average power specification, it's easy to achieve with a reasonable duty cycle. But I guess, you won't find a ready-made solution with analog input, you have to assemble it from components, e.g. a transmitter module or chip, a microprocontroller and possibly (for higher resolution) an external ADC.

P.S.: Chipcon/TI CC1110 can provide the intended functionality in a single chip, if 14 bit ADC is sufficient. But it's most likely not the easiest way to do it.