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12 Bit Converter Upgrades µC's - 07/07/94 EDN-Design Ideas
simple circuit in Fig 1 and an accompanying software routine let you
easily substitute a multichannel 12-bit ADC for 8-bit ADC
internal to 87C752 µC. A single assembly can n implement both
low and high-performance version of a system....[Design Idea added
11/05] [Design Idea by John Wettroth, Maxim Integrated Products,
Sunnyvale, CA]
16-bit ADC provides 19-bit resolution - 21-Feb-02 Issue of EDN Many
data-acquisition systems require both high accuracy and a fast acquisition rate. These
attributes allow the system to detect small data signals and to groupsensor channels into
the same system. Withchannels, the system can be smaller, less expensive, and less
power-consuming. Long-distance optical communications and medical equipment, such as CT
scanners, can benefit from.... [Design Idea by Alain Guery and Charles Kitchin, Analog
Devices, Wilmington, MA]
18-bit ADC uses PC's serial port - 27-Sep-01 Issue of EDN A PC usually
requires a plug-in ADC card to process analog signals. However, with the circuitry in
Figure 1, a PC can communicate with an 18-bit ADC through its serial port. The port
provides both positive and negative power supplies as well as control signals. IC1 is an
18-bit MAX132 ADC with a serial interface.... [Design Idea by Yongping Xia, Teldata, Los
Angeles, CA]
