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Introduction

Schematic Drawings
Use schematic symbols to layout the components of your circuit and make electrical connections. With symbols ranging from amplifiers to vacuum tubes, as well as the ability to build custom symbols, you are able to design nearly any circuit. Access to DigiKey's extensive part database also allows you to browse and assign orderable part numbers.
Diagram Building
Use the system blocks to refine your idea at a conceptual level. The higher-level components are there to help you plan out the broader intentions of your idea. This powerful block chain library allows you to quickly layout the function of circuit. Once your design is ready, save and share with your colleagues.
Flow Chart Creation
The flow chart creation option will help transition your concept to a design. Use the library of arrows, shapes, UML symbols, and more to sort out the flow and annotate each stage. Insert a textbox, math function/formula, image, or link to help illustrate the objectives and make your plan easy to follow.

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Projects

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Design Starters

Circuit Fundamentals

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 of 19
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Hartley Oscillator

The Hartley Oscillator uses a tuned LC circuit connected between the collector and base of the transistor amplifier.

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Integrator Op Amp

The Integrator Op Amp will produce an output voltage that is determined by the length of time a voltage is present on the input.

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Non-Inverting Op Amp

The non-inverting op amplifier will amplify an input signal and not invert the phase.

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Common Base Configuration

The common base configuration is one which keeps the base common to the input and output.  It exhibits low input impedance and high output impedance and does not invert the phase.

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Common Collector Configuration

The common collector configuration is one where the collector is common to the input and output.  It can also be referred to as an emitter follower.  It exhibits high input impedance and low output impedance and does not invert the phase.

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Phase Shift Oscillator

The RC/Phase Shift Oscillator uses regenerative feedback from the RC network to produce a sine wave.

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Second Order Low Pass Butterworth
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Colpitts Oscillator
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RLC High Pass
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 of 19
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Introduction

Schematic Drawings
Use schematic symbols to layout the components of your circuit and make electrical connections. With symbols ranging from amplifiers to vacuum tubes, as well as the ability to build custom symbols, you are able to design nearly any circuit. Access to DigiKey's extensive part database also allows you to browse and assign orderable part numbers.
Diagram Building
Use the system blocks to refine your idea at a conceptual level. The higher-level components are there to help you plan out the broader intentions of your idea. This powerful block chain library allows you to quickly layout the function of circuit. Once your design is ready, save and share with your colleagues.
Flow Chart Creation
The flow chart creation option will help transition your concept to a design. Use the library of arrows, shapes, UML symbols, and more to sort out the flow and annotate each stage. Insert a textbox, math function/formula, image, or link to help illustrate the objectives and make your plan easy to follow.

Start Designing

Help & Resources

Need help? Ask questions in our TechForum

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Conversion Calculators
DigiKey's online conversion calculators offer a one-stop resource for many electronics industry calculations.

Go to Calculators

Conversion Calculators
DigiKey's online conversion calculators offer a one-stop resource for many electronics industry calculations.

Go to Calculators

Reference Design Library
Search for designs based on the circuit's performance using DigiKey's Reference Design Library.

Go to Reference Design Library

Reference Design Library
Search for designs based on the circuit's performance using DigiKey's Reference Design Library.

Go to Reference Design Library

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