#online simulation

Dear Valued Customer,

All good things must come to an end … and be replaced with something way better. Today, we launched a beautiful new TINA (version 12) for you!

Here are some of the improvements that have been made since our last product release:

Both 32 and 64-bit versions. You can choose which version you would like to install.

Shell version for running TINA from the command line for batch analysingPower dissipation and efficiency calculation

Integrated cursor display in the diagram window. Cursor values are displayed right below the curves within the same window, and – if selected – all curve values can be seen.

Syntax highlighting in Spice and HDL editors

Autoconverge. Iterated transient calculation with system or user defined parameter sets.New BSIM3V3.2 model, Delta-Sigma ADC, GaAs and GaN devicesImproved PCB Design with bus connection, transmission lines, and block repetition (Macro-block copy)

If you hurry, and order your upgrade today (through Dec 30 midnight), you can even get the following benefits:

special introductory prices with 30% discount

a complimentary, two-year subscription to TINACloud

free HDL package for the Educational, Classic and Industrial versions

So, don’t hesitate and place your order now to get all the benefits at once! 

In this tutorial video we will present how to create and simulate a “Capacitance multiplier”circuit using TINACloud.

A “capacitance multiplier” circuit can increase the effective value of a small capacitor C1 to a much larger value.

The capacitance seen at Vout is: Cout = C1 * R1/R3. The output capacitance can be verified by placing an AC source in series with a resistor tied to Vout and running an AC frequency response analysis.

We will show later on that the circuit behaves as if the C1 capacitor were multiplied by 1000, in the the R1C1 low pass circuit.

The “OPA569 Laser Driver” circuit provides voltage- controlled constant- current biasing of a grounded- anode laser diode by using a negative supply voltage and a positive control voltage. As shown, the OPA569 op amp provides an output current of 500mA per volt input. Output is current- limited to 2A by R2. Frequency compensation is provided by C3 R3. This circuit takes advantage of the unique topology of the OPA569; it does not require a shunt resistor to measure its output current. This amplifier provides an output monitor current from pin 19 that is 1/475 th of its output current. This current is used as negative feedback to the amplifier’s inverting input (pin 5). A constant- current output is derived by this feedback. Since no shunt resistor is required to measure output current, there is no reduction in output voltage compliance due to shunt resistor voltage drop and this circuit can swing its output voltage very close to its supply rail. This increases efficiency and reduces heat sinking requirements. In fact, supply voltage can be reduced to 3.3V for most laser diodes. The OPA569 features both a Current Limit (pin 4) and a Thermal Overtemp (pin 7) flag. These flags can be used to protect the amplifier and the Enable (pin 8) can be used to digitally control its status.

Download the FREE trial demo of TINA Design Suite and get

One year free access to TINACloud (the cloud-based, multi-language, installation-free online version of TINA now running in your browser anywhere in the world.)

An immediate 20% discount from the offline version of TINA

Free license for your second computer, laptop etc.

This “unusual zoom amplifier circuit” allows you to “zero out” a DC voltage and then amplify a small AC signal which is superimposed on the much larger DC level. When switch SW1 is closed, both INA128 inputs see the same AC + DC level and its high common- mode rejection results in zero volts output. When SW1 is opened, the DC level is stored on C1 but now the AC signal is applied to only the inverting input where it is amplified by a factor of 1000x. The droop rate of C1 depends on the leakage of SW1 and the input bias current of U1.Using a glass reed relay and an INA116 (Ib = 5fA typ), extremely low droop rate can be achieved.

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The USS Independence NCC - 02276-A is a custom designed Sovereign CV Class Carrier. Launched in the year 2383, its crews primary mission is to patrol the remote part of the Alpha & Beta quadrants, help Alien species and members of the federation and continue the federation's ongoing mission to seek out new worlds and new civilizations, to boldly go where nobody has gone before.