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MC33794DH-MC33794DWBR2
Electric Field Imaging Device
MOTOROLASEMICONDUCTOR TECHNICAL DATA
Document order number: MC33794/D
Rev 6.0, 04/2003
Product Preview
ORDERING INFORMATION
Electric Field Imaging DeviceThe 33794 is intended for applications where noncontact sensing of objects
is desired. When connected to external electrodes, an electric field is created.
The 33794 is intended for use in detecting objects in this electric field. The IC
generates a low-frequency sine wave. The frequency is adjustable by using an
external resistor and is optimized for 120 kHz. The sine wave has very low
harmonic content to reduce harmonic interference.
The 33794 also contains support circuits for a microcontroller unit (MCU) to
allow the construction of a two-chip E-field system.
Features Supports up to 9 Electrodes and 2 References Shield Driver for Driving Remote Electrodes Through Coaxial Cables +5.0 V Regulator to Power External Circuit ISO-9141 Physical Layer Interface Lamp Driver Output Watchdog and Power ON Reset Timer Critical Internal Nodes Scaled and Selectable for Measurement High-Purity Sine Wave Generator Tunable with External Resistor
