Current cell of a digital-to-analog converter

Details Current cell of a digital-to-analog converter Current cell of a digital-to-analog converter

1996-10-10

1998-09-01

Hoff, Marc S.

Coded data generation or conversion

Analog to or from digital conversion

With particular solid state devices

341144, H03M 166

Patent

active

058016538

ABSTRACT:
A current cell for converting a digital signal to an analog current signal is disclosed. The current cell includes a first PMOS transistor which receives the digital signal from a pre-stage processor by the gate. A drain of the first PMOS transistor is grounded. A second PMOS transistor has a source which is connected to the source of the first PMOS transistor, a gate which receives an inverse signal of the digital signal from the pre-stage processor, and a drain for providing the analog current signal. A third PMOS transistor is connected between a voltage source and the source of the first PMOS transistor. The third PMOS transistor has a gate to which a first reference voltage is applied.

REFERENCES:
patent: 5592167 (1997-01-01), Caruso et al.
patent: 5654710 (1997-08-01), Oh et al.

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