WEBENCH Sensor Designer Demonstration ( Move the Slider! )
Photodetector solutions are used in many different applications including communications, security, automotive, military, telecom, medical instrumentation, ranging and distance, barcode scanners, and other industrial systems for optical signal pick up, conditioning, and transfer.
WEBENCH Photodiode Designer provides a complete photodiode to digital serial output solution, including sensor interface, transimpedance amplifier and filter, 8-bit through 12-bit ADCs, and a serialized output to connect to various back-end systems. Start by selecting a photodiode sensor from a list of market leaders, or specify your own photodiode sensor parameters by creating a custom sensor. WEBENCH Photodiode Designer provides you with optimized signal path performance, bill of materials, budgetary cost, and links to evaluation boards and other tools for testing and validating your simulated solution.
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WEBENCH Photodiode Sensor Designer Solutions
WEBENCH Photodiode Sensor Designer solutions are based on a transimpedance amplifier circuit. The photodiode is biased to be in photoconductive mode. An op amp configured as a current-to-voltage converter detects and amplifies the photodiode output current. The amplifier output voltage is delivered to single-ended ADC (8 to 12 bits).
Standard photodiode products can be selected from a list, or a custom photodiode can be “created” for use with the Designer.
Example schematic: Photodiode output current is converted to a voltage using a transimpedance amplifier. The amplifier circuit is driving a single-ended ADC.
Photodiode Sensor Designer Help
How to use this design tool:
1) Explore & Learn
Click the blue Start Design button for your desired sensor type and choose a pre-loaded sensor, or enter a custom sensor to meet your needs. Then click the 'Create Design' button.
2) Compare & Select Review the resulting schematic, bill of materials, performance summary, and other technical results in the Design Summary overview. Click on any of the displayed panels to review more advanced or detailed information behind each panel. You can modify design parameters or further optimize your design by selecting a different sensor, amplifier, ADC, or other system parameters.
3) Design & Build Print a report to document your design in the Documentation panel or move forward to order evaluation kits, component samples, and other tools in the Build It panel in seconds. Furthermore, download applicable datasheets, application notes, and other design tips.
Tip: If your monitor is 1024x768, press the F11 key to set your browser to full screen. You can also collapse the header and the side detail panels out of the working view by clicking the small box up to the right and just under the header or at the top of the left design panel. The newest generation of the WEBENCH toolset requires Adobe Flash 9.0. If you do not have Adobe Flash 9.0 installed, you can download it here.
