Digital-to-analog voltage converter

• Main Authors: RIEGER MARIO, MICHEL FRANK
• Format: Patent
• Language: Chinese; English
• Published: 08.12.2023
• Subjects: BASIC ELECTRONIC CIRCUITRY; CODE CONVERSION IN GENERAL; CODING; DECODING; ELECTRICITY

A digital-to-analog voltage converter (DAC) includes: a first resistor string having a plurality of resistors; and a plurality of DAC stages, each DAC stage coupled to the first resistor string, and comprising: a voltage buffer; a first switching stage coupled to the first resistor string, the first switching stage configured to provide an input to the voltage buffer depending on a first sub-word receiving the digital input; a second resistor string having one or more resistors, where a first end of the second resistor string is coupled to the current source and a second end of the second resistor string is coupled to an output of the voltage buffer; and a second switching stage coupled to the second resistor string and configured to provide an output of the DAC stage depending on a second sub-word receiving the digital input. 一种数模电压转换器(DAC)，包括：具有多个电阻器的第一电阻器串；以及多个DAC级，每个DAC级耦合到所述第一电阻器串，并且包括：电压缓冲器；耦合到第一电阻器串的第一开关级，第一开关级被配置用于取决于接收数字输入的第一子字向电压缓冲器提供输入；具有一个或多个电阻器的第二电阻器串，其中第二电阻器串的第一端耦合到电流源，并且第二电阻器串的第二端耦合到电压缓冲器的输出；以及