Title :
A 14-bit 1.8-V 20-mW 1-mm2 CMOS DAC
Author :
Tiilikainen, Mika P.
Author_Institution :
Nokia Mobile Phones, Helsinki, Finland
fDate :
7/1/2001 12:00:00 AM
Abstract :
A low-voltage low-power small-area and high-resolution digital-to-analog converter (DAC) for mixed-signal applications is Introduced. A binary weighted current steering DAC is a power-efficient architecture, because almost all the current taken from the supply is used for the output signal. The current steering architecture is also highly suitable for high-speed operation. Typically, the architecture suffers from poor linearity characteristics, but the problem can be prevented with a novel calibration method, where the currents generated for the most significant bits are fine tuned. As a result, a very compact and low-power solution can be implemented by using a low-voltage digital technology
Keywords :
CMOS integrated circuits; calibration; digital-analogue conversion; high-speed integrated circuits; low-power electronics; 0.18 micron; 1 mm; 1.8 V; 14 bit; 20 mW; CMOS DAC; LV deep submicron digital technology; binary weighted current steering DAC; calibration method; digital-to-analog converter; high-resolution DAC; high-speed operation; linearity characteristics; low-power DAC; low-voltage DAC; mixed-signal applications; power-efficient architecture; small-area DAC; Analog computers; Calibration; Character generation; Circuits; Digital-analog conversion; Diodes; Error correction; Linearity; Low voltage; MOSFETs;
Journal_Title :
Solid-State Circuits, IEEE Journal of
