Maestro DocsSim LabComponents
Op amps and building blocks
Op amps, comparators, analog switches, controlled sources and other building blocks.
Op amps
| Part | Behaviour |
|---|---|
| Ideal op amp | Very high gain. The inverting input is on top. A swapped version is also available. |
| Real op amp | Has limited gain, supply rails and slew rate. |
| Comparator (Hi-Z/GND output) | Pulls its output to ground or leaves it open (Hi-Z). Add a pull-up resistor to get a high. |
| OTA | A transconductance amplifier: voltage in, current out. |
| Norton amp | A current-differencing amplifier. |
| CCII+ and CCII− | Second-generation current conveyors. |
Switches and buffers
| Part | Behaviour |
|---|---|
| Analog switch (SPST and SPDT) | A switch controlled by a logic input, for analogue signals. |
| Analog mux | Selects one of several analogue inputs. |
| Tristate buffer | Passes a signal, or disconnects (high impedance) when disabled. |
| Schmitt trigger (and inverting) | A comparator with hysteresis that cleans up slow signals. |
| Delay buffer | Passes a signal after a delay. |
Controlled sources
| Part | Behaviour |
|---|---|
| VCVS | Output voltage controlled by an input voltage. |
| VCCS | Output current controlled by an input voltage. |
| CCVS | Output voltage controlled by an input current. |
| CCCS | Output current controlled by an input current. |
| Controlled voltage and Controlled current | Sources set by another signal. |
Isolation and protection
| Part | Behaviour |
|---|---|
| Optocoupler | Passes a signal with an LED and a light sensor, with no electrical connection. |
| Time-delay relay | A relay that closes after a delay. |
| Motor-protection switch | A switch that trips on overload. |
Regulators and subcircuits
| Part | Behaviour |
|---|---|
| LM317 | An adjustable voltage regulator, as a ready-made subcircuit. |
| TL431 | A programmable shunt reference, as a ready-made subcircuit. |
| Subcircuit instance | Places a chip you saved or one from the IC library. |
Create a subcircuit (in Parts) turns part of your circuit into a reusable chip.