Patent ID: 6614372
Filing Date: 2003-09-02
Classification: H03M

Abstract:
A parallel-to-serial conversion device, comprising:a voltage output device to produce a voltage representative of a value of a bit in a serial bit datastream converted from a parallel bit utilizing a combined current, the combined current divided into a first current and a second current; n number of selection devices to accept as input n number of parallel bits, wherein an active selection device accepts as input the first current and outputs an active selection device current directly to a corresponding current source and (nâˆ’1) non-active selection devices are inactive at one time; a current steering device, to accept as input the second current, and output (nâˆ’1) non-active selection device currents to (nâˆ’1) number of current sources, wherein n number of current sources, each corresponding to the n number of selection devices, accepts as input the active selection device current and the (nâˆ’1) non-active selection device currents, the combined current having a magnitude of n multiplied by a first current value, and the second current having a magnitude of (nâˆ’1) multiplied by the first current value.