A deep-submicrometer analog-to-digital converter using focused-ion-beam implants. - Robert H. Walden; Adele E. Schmitz; Allan R. Kramer; Lawrence E. Larson; John Pasiecznik (IEEE J. Solid State Circuits, 1990)

A 3.2-GHz second-order delta-sigma modulator implemented in InP HBT technology. - Joseph F. Jensen; Gopal Raghavan; Albert E. Cosand; Robert H. Walden (IEEE J. Solid State Circuits, 1995)

InP-HBT chip-set for 40-Gb/s fiber optical communication systems operational at 3 V. - Mehran Mokhtari; Thomas Swahn; Robert H. Walden; William E. Stanchina; Michael Kardos; Tarja Juhola; Gerd Schuppener; Hannu Tenhunen; Thomas Lewin (IEEE J. Solid State Circuits, 1997)

Performance trends for analog to digital converters. - Robert H. Walden (IEEE Commun. Mag., 1999)

Analog-to-digital converter survey and analysis. - Robert H. Walden (IEEE J. Sel. Areas Commun., 1999)

InP-HBT optoelectronic integrated circuits for photonic analog-to-digital conversion. - Tom P. E. Broekaert; Willie Ng; Joseph F. Jensen; Daniel Yap; David L. Persechini; S. Bourgholtzer; Charles H. Fields; Young K. Brown-Boegeman; Binqiang Shi; Robert H. Walden (IEEE J. Solid State Circuits, 2001)

Ka-band InP high electron mobility transistor monolithic microwave integrated circuit reliability. - Bruce M. Paine; Richard C. Wong; Adele E. Schmitz; Robert H. Walden; Loi D. Nguyen; Michael J. Delaney; Kenny C. Hum (Microelectron. Reliab., 2001)

Reliability of 100 nm silicon nitride capacitors in an InP HEMT MMIC process. - William J. Rowe; Bruce M. Paine; Adele E. Schmitz; Robert H. Walden; Michael J. Delaney (Microelectron. Reliab., 2003)

Analog-to-Digital Conversion in the Early Twenty-First Century. - Robert H. Walden (Wiley Encyclopedia of Computer Science and Engineering, 2008)