Patent ID: 6400298
Filing Date: 2002-06-04
Classification: H03M

Abstract:
A digital-to-analog converter for voltage-converting a digital input signal into an analog output voltage, comprising:a first converter section for determining a range of the analog output voltage, by controlling connection to one of a first and second reference voltage in response to a range control signal, the first converter section comprising a first resistor connected at a first end to an analog output voltage node and connected at a second end to one of the first and second reference voltages in response to the range control signal; and a second converter section for changing the analog output voltage by controlling connection to the one of the first and second reference voltage in response to the digital input signal for directing voltage conversion, the second converter section comprising a resistor array in which a plurality of resistors are arranged in parallel, a first end of each of the resistors of the array being connected to the analog output voltage node and a second end of each of the resistors being connected to one of the first reference voltage and the second reference voltage in response to the digital input signal.