Bias voltage compensated integrated circuit digital-to-analog co

Details Bias voltage compensated integrated circuit digital-to-analog co Bias voltage compensated integrated circuit digital-to-analog co

1986-04-02

1987-12-15

Miller, Charles D.

Communications: electrical

Audible indication

Percussion-type sound producer

H03M 166

Patent

active

047136499

ABSTRACT:
A digital-to-analog converter comprising a ladder circuit resistance network and switching means comprising p-channel and n-channel MOS transistors. The distortion of analog signals generated by non-linear characteristics of resistors fabricated using p-channel or n-channel materials in the semiconductor are improved by replacing an inverter element module of the ladder circuit with T-type inverter circuit element module, and adjusting the resistance value of both the side branches of the T-type circuit.

REFERENCES:
patent: 3541354 (1970-11-01), Basham
patent: 3832707 (1974-08-01), Buchanan
patent: 4138667 (1979-02-01), Vogel
patent: 4381499 (1983-04-01), Struthoff
patent: 4415883 (1983-11-01), Sichart
Price, "A Passive Laser-Trimming Technique to Improve the Linearity of a 10-Bit D/A Converter", IEEE Journal of Solid State Circuits, vol. SC-11, No. 6, Dec. 1976, pp. 789-794.

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