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General Electronics

This macro category includes several types of SPICE simulation circuits, such as the Basic Analogic and Digital components, the Operational amplifiers, Active and Passive Filters, Ultrasonic, Infrared, Optical circuits, etc

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  • AC Coupled Photodiode Amplifier

    Created by TINADesigner, published on 23-04-2013

    The input signal is a 10khz 10uA peak current from a general photodiode, modeled with 1mA DC current due to the ambient background light. The amplifier shows a bandwidth over 10khz. Click here to analyze this circuit on-line with TINACloud, without any registration.

    FREE

    (only to registered users)

    Project Type: Free

    Complexity Spice Software Software Version Full version Components number
    Simple Tina 7+, TINACloud No 11-20

    Path: SPICE Projects > General Electronics > Optical Circuits

  • Relay Models

    Created by MicroCapDesigner, published on 15-04-2013

    a Relay model with hysteresis and a electromechanical relay model the requires an adjustment of relative accuracy and gear integration method to track the phenomenon of bouncing.

    FREE

    (only to registered users)

    Project Type: Free

    Complexity Spice Software Software Version Full version Components number
    Simple Micro-Cap 9+ No <10

    Path: SPICE Projects > General Electronics > Analog Components > Relays

  • Buffering a Precision Operational Amplifier

    Created by TINADesigner, published on 11-04-2013

    Driving a load impedance with a precision operational amplifier reduces its features, as the offset voltage, bias current, drift etc. In this simulation a buffer amplifier is placed between the precision amplifier and its load. In this way the precision amplifier maintains its features and the buffer has the task of driving the load. Click here to analyze this circuit on-line with TINACloud.

    FREE

    (only to registered users)

    Project Type: Free

    Complexity Spice Software Software Version Full version Components number
    Simple Tina 7+, TINACloud No 11-20

    Path: SPICE Projects > General Electronics > Operational Amplifiers

  • VCDL without distortion into the outputs

    Created by JacobBaker, published on 10-04-2013

    This modified version of Voltage-Controlled Delay Line regenerates full logic levels without introducing distortion into the signals. In this VCDL has been changed the last stage to two diff-amps with swapped input signals.The resulting signals have a width greater than the unmodified version. To get full logic levels, signals pass through inverters.

    FREE

    (only to registered users)

    Project Type: Free

    Complexity Spice Software Software Version Full version Components number
    Advanced LTspice IV No 51-100

    Path: SPICE Projects > General Electronics > Digital Basic Components

  • High Speed Transimpedance Amplifier

    Created by TINADesigner, published on 01-04-2013

    200 Mhz amplifier for photodiode current. The transimpedance amplifier is implemented with a THS4304 in inverting configuration and a single power supply. The photodiode is modeled with its resistance and capacitance. The feedback capacitor reduces the gain peak to ensure the stability. Click here to analyze this circuit on-line with TINACloud.

    FREE

    (only to registered users)

    Project Type: Free

    Complexity Spice Software Software Version Full version Components number
    Simple Tina 7+, TINACloud No 11-20

    Path: SPICE Projects > General Electronics > Optical Circuits

  • 8 stage Voltage-Controlled Delay Line

    Created by JacobBaker, published on 21-03-2013

    The VCDL is used to provide delay in a delay locked loop (DLL). This schematic has eight delay cells. the differential inputs were generated using an inverter and a transmission gate. the outputs are evenly spaced and they only swing up to Vref = 500mV. this is done to minimize the effects of power supply and ground noise on the delay of the circuit.

    FREE

    (only to registered users)

    Project Type: Free

    Complexity Spice Software Software Version Full version Components number
    Advanced LTspice IV No 51-100

    Path: SPICE Projects > General Electronics > Digital Basic Components

  • Differential Amplifier with NMOSFET

    Created by MicroCapDesigner, published on 18-03-2013

    differential amplifier using 7 N-channel mosfet transistors. Double supply of +/- 15V.

    FREE

    (only to registered users)

    Project Type: Free

    Complexity Spice Software Software Version Full version Components number
    Simple Micro-Cap 9+ No 11-20

    Path: SPICE Projects > General Electronics > Analog Components > Transistors

  • Transimpedance Amplifier with Feedback Resistor vs Tee Network

    Created by TINADesigner, published on 16-03-2013

    two current-to-voltage converters are implemented with different solutions: an operational amplifier OPA637 with feedback resistor and the same operational amplifier in a Tee network configuration.the first solution shows a lower noise, and therefore a higher signal-to-noise ratio, a lower DC offset and drift. these device are used as high sensitivity transimpedance photodiode amplifiers, the current source represents the photodiode.

    FREE

    (only to registered users)

    Project Type: Free

    Complexity Spice Software Software Version Full version Components number
    Simple Tina 7+ No 11-20

    Path: SPICE Projects > General Electronics > Optical Circuits

  • Delay-Locked Loop (DLL) SPICE simulation

    Created by JacobBaker, published on 15-03-2013

    Problems with PLL output jitter resulting from the VCO output frequency changing with a constant input voltage (VjnVC0 = constant) has led to the concept of a delay-locked loop (DLL). Assuming that a reference clock is available at exactly the correct frequency, the input data is delayed through a voltage-controlled delay line (VCDL) a time t0 until it is synchronized with the reference clock. Jitter is reduced by using an element, the VCDL, that does not generate a signal (like the VCO does). The transfer function Fclock/Fout is zero (the phase of the reference clock is taken as the reference for the other signals in the DLL, i.e., Fclock = 0), so that oscillator noise and the resulting jitter are not factors in DLL design.

    FREE

    (only to registered users)

    Project Type: Free

    Complexity Spice Software Software Version Full version Components number
    Intermediate LTspice IV No 11-20

    Path: SPICE Projects > General Electronics > Digital Basic Components

  • Optical Detector with Analog and TTL output

    Created by TINADesigner, published on 14-03-2013

    a photodiode OPT101 with on-chip transimpedance amplifier with single power supply, when a light is detected produces an analog output. A TLC339, used as comparator, converts the analog output to TTL output. The photodiode uses a resistor feedback to increase the detector's band and a capacitor for frequency compensation stability.

    FREE

    (only to registered users)

    Project Type: Free

    Complexity Spice Software Software Version Full version Components number
    Intermediate Tina 7+ No 11-20

    Path: SPICE Projects > General Electronics > Optical Circuits

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