High-resolution digital-to-analogue converter with a small area requirement

摘要

Digital-to-analogue converter for converting a digital input signal into an analogue output signal includes a resistor string with switchable taps, a decoder circuit for connecting or disconnecting the taps in a manner dependent on the digital input signal, and a voltage divider. The voltage divider is operable to generate a divider voltage that divides a voltage difference that occurs between two connectable taps. The analogue output voltage is dependent on the divider voltage generated by the voltage divider.