InP HBT/Si CMOS-Based 13-Bit 1.33Gsps Digital-to-Analog Converter with >70 dB SFDR

Abstract - Gigahertz-rate Digital-to-Analog Converters (DACs) have become readily available from several commercial vendors but have been unable to achieve >70 dB spurious-free dynamic range (SFDR) performance over a wide bandwidth (≥500MHz). This paper presents the results of a unique, heterogeneously-integrated (InP HBT with 0.18um silicon CMOS), 13-bit 1.33Gsps DAC that achieves >70dB SFDR across a 500MHz bandwidth in the second Nyquist zone (750MHz to 1250MHz).