CMOS sensor interface for a robotics LAN

Document Type

Conference Proceeding

Publication Date

12-1-1989

Abstract

The authors describe a CMOS design for interfacing low-level analog levels from sensors to a robotics network. This interface IC contains analog signal conditioning, an 8-bit ADC (analog-to-digital converter), and protocol control for the interface between simple analog sensors and the local-area network. The ADC uses a combination linear switched capacitor array and a resistor-string successive approximation register technique for conversion. A bandgap reference utilizes the vertical NPN device obtained using the substrate as a collector. Calculated analog and digital power dissipation are 4.1 mW and 8.1 μW/Hz, respectively. Technology is 3-μm double-polysilicon, single-metal for the 3.5 × 4.0-mm2 chip.

Identifier

0024876388 (Scopus)

First Page

265

Last Page

267

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