Patent ID: 7102438

Claim:
A differential autozeroing floating-gate amplifier, comprising: a first floating node and a second floating node; a pair of input nodes including a first input node and a second input node wherein the first input node is capacitevely coupled to said first floating node and the second input node is capacitively coupled to said second floating node; a first output node and a second output node; a first feedback capacitor coupled between said first floating node and said first output node; a second feedback capacitor coupled between said second floating node and said second output node; a first charge transfer device coupled to said first floating node to transfer charge to said first floating node responsive to a signal on said first output node; a second charge transfer device coupled to said second floating node to transfer charge to said second floating node responsive to a signal on said second output node, at least one of said first and second charge transfer devices being configured to conduct charge transfer by way of at least one of a tunneling and an injection mechanism; and a gain device having a first input coupled to said first floating node, a second input coupled to said second floating node, a first output coupled to said first output node and a second output coupled to said second output node.