In an effort to help system designers reduce design cycle time, TI has developed an evaluation module highlighting the TLV2543 12-bit ADC, TMS370C712 microcontroller and support circuitry. For many sensor based applications, this reference design represents a ready-to-use solution. The EVM comes complete with three hex displays for digital readout, pre-programmed microcontroller, TSL250 electro-optic light to voltage sensor, temperature sensor, variable voltage input, 1x buffered input, 2x buffered inputs, and user defined inputs. Easy to use switches are provided to initiate a conversion and select 1 of the 11 inputs. This EVM is similar to the 5 V version TLC2543EVM but is specifically tailored for designers of power sensitive 3 V systems.
Included in the application information are complete source code
listings for the microcontroller, software flowcharts of various
subroutines, schematic and board layout with etch patterns. Detailed
instructions on grounding schemes to reduce PCB noise along and
driving the analog input of a switched capacitor ADC are also
described. Easy to follow user documentation is provided. Flexibility
has been designed into the EVM to allow customizing the analog
input circuitry or use of a different microcontroller. Only a
+5 V supply is required for operation.
Literature numbers and device names: (Use the keyword search provided in the Semiconductor Technical Documentation page.)
TLV2543 D/S SLAS096B TLC2543 D/S SLAS079B TSL250 D/S SOES004C
To purchase the TLV2543 EVM or the 3 V TLC2543 EVM
Vol 15, February, 1996
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