Patent ID: 7190214

Claim:
An amplifier apparatus for use with a sensor; the apparatus comprising: (a) a first amplifying circuit segment and a second amplifying circuit segment; said first and second amplifying circuit segments being coupled with said sensor and cooperating to effect substantially balanced handling of signals received from said sensor; each of said first and second amplifying circuit segments including a first transistor device coupled in parallel with a second transistor device; (b) a feedback unit coupled with said first and second amplifying circuit segments; said feedback unit receiving signals from each of said first transistor device and said second transistor device in each of said first and second amplifier circuit segments; said feedback unit providing feedback signals to at least one of said first transistor device and said second transistor device in each of said first and second amplifier circuits to effect substantially balanced signal handling of signals by said first transistor device in each of said first and second amplifying circuit segments and to effect substantially balanced signal handling of signals by said second transistor device in each of said first and second amplifying circuit segments, wherein said first transistor devices are metal-oxide transistor devices and wherein said second transistor devices are a bipolar transistor devices.