A Cascaded Thermometer-Coded Current-Steering Digital-to-Analog Converter

Abstract

A fully thermometer-coded cascaded current-steering digital-to-analog converter (DAC) is reported in this paper. The described solution is implemented and simulated as a 7-bit DAC. The circuit achieves a $|Dl\mathrm{V}L|\lt 0.9^{*}\mathrm{L}\mathrm{S}\mathrm{B}$ for extracted view Monte Carlo simulations, temperatures in the range between $-40^{0}\mathrm{C}$: $125^{0}\mathrm{C}$ and voltage supply in the range 2. 5V: 3.3V. In the 55nm high-voltage CMOS technology, 6V devices are used. The total current consumption is $9\mu \mathrm{A}$ in the supply range from 2.5V to 3. 3.3V.