Patent ID: 7915928

Claim:
A circuit for performing voltage to current conversion, said circuit comprising: a first and second set of devices, wherein the first set of devices sense an input voltage signal and replicate said input voltage signal across said second set of devices to generate a linear voltage, and wherein the second set of devices comprise at least two resistors and a bias current split between said resistors, and wherein said resistors are connected in series and convert said input voltage signal to an output current signal; a third set of devices that transfer said output current signal to output terminals; a negative feedback loop comprising: said first set of devices; said second set of devices; and an amplifier positioned between a first one of said first set of devices and a first one of said third set of devices; and a common mode feedback loop that regulates an output common mode voltage from said output terminals to a reference voltage to control said output terminals and make said output common mode voltage equal to said reference voltage.