An 8-bit and a 10-bit low power high-speed neuron MOS digital-to-analog converter in 0.04 mm2

Digital-to-analog converts utilizing neuron MOS-transistors were designed. A 8-bit version is implemented with only one neuron MOS-transistor and 8 capacitors. The silicon area of the D/A converter is only 0.04 mm²and the power consumption is 7.5 mW at 200 MS/s. The measured DNL is 0.23 LSB and INL 0.47 LSB. An enhanced version is also proposed. The silicon area of the enhanced circuit is smaller while the number of the bits can be increased to 10. A method to increase the linearity of the proposed D/A converters is presented.