Design Simulation and Device Models
Linear Technology provides a variety of custom design simulation tools and device models to allow even novice designers to quickly and easily evaluate circuits using high performance switching regulators, amplifiers, data converters, filters and more.
- LTspice IV
- LTpowerCAD
- LTpowerPlay
- Amplifier Simulation & Design
- Filter Simulation & Design
- Timing Simulation & Design
- Data Converter Evaluation Software
- Dust Networks Starter Kits
LTspice IV
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LTspice IV LTspice IV is a high performance SPICE simulator, schematic capture and waveform viewer with enhancements and models for easing the simulation of switching regulators. Our enhancements to SPICE have made simulating switching regulators extremely fast compared to normal SPICE simulators, allowing the user to view waveforms for most switching regulators in just a few minutes. Included in this download are LTspice IV, Macro Models for 80% of Linear Technology's switching regulators, over 200 op amp models, as well as resistors, transistors and MOSFET models. |
 View the LTspice Video Channel  |
LTpowerCAD
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LTpowerCAD The LTpowerCAD design tool is a Microsoft Excel based power supply design tool program that can significantly ease the tasks of power supply design with Linear Technology µModule and some monolithic products. Unlike conventional simulation tools, this tool guides users throughout the whole supply design process: it searches suitable LTC parts according to user’s supply specifications; then it guides the user to select and optimize circuit component values with suggestions and warnings. The tool shows real-time results of feedback loop bode plot, as well as the power stage performance. The design can be exported to LTspice; simulation circuit for users to further verify their designs. The tool also provides PCB layout example and a design summary. Currently, this design tool support Microsoft Excel 2000, 2002, 2003, 2007 and 2010 on a Windows based computer. Contact LTpowerCAD@linear.com for questions or support. |
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LTpowerPlay
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LTpowerPlay LTpowerPlay is a powerful Windows based development environment that supports Linear Technology digital power ICs with EEPROM, including the LTC2974 and LTC2978 Quad and Octal PMBus Power Supply Managers, and the LTC3880 Dual Output PolyPhase Step-Down DC/DC Controller with Digital Power System Management. The software supports a variety of different tasks. You can use LTpowerPlay to evaluate Linear Technology ICs by connecting to a demo board system. LTpowerPlay can also be used in an offline mode (with no hardware present) in order to build a multi-chip configuration file that can be saved and re-loaded at a later time. LTpowerPlay provides unprecedented diagnostic and debug features. It becomes a valuable diagnostic tool during board bring-up to program or tweak the power management scheme in a system or to diagnose power issues when bringing up rails. LTpowerPlay utilizes the DC1613A USB-to-SMBus controller to communicate with one of many potential targets, including the LTC2978's DC1540 eval system and DC1508 socketed programming board, or a customer target system. The software also provides an automatic update feature to keep the software current with the latest set of device drivers and documentation. To access technical support documents for LTC Digital Power Products visit www.ltpowerplay.com/help |
Step 1: Download and Install LTpowerPlay
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Amplifier Simulation
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Spice Models Download the complete library of LTC op amp SPICE models for general analog circuit simulations. These models are designed for compatibility with LTspice (SwitcherCAD), PSPICE, and PSPICE-compatible simulation programs. They may require a syntax conversion for use with other simulation programs. |
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The Configurator The "Configurator" is a design tool that generates the complete schematic for an amplifier stage designed with one of Linear Technology's Gain Selectable Amplifiers: the LT1991, LT1995 and LT1996. With hundreds of combinations, theses amplifiers can be configured for inverting, non-inverting, differencing and even buffered attenuation through simple pin strapping. |
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Noise Linear Technology's Noise program allows the user to calculate circuit noise using LTC op amps, determine the best LTC op amp for a low noise application, display the noise data for LTC op amps, calculate resistor noise and calculate noise using specs for any op amp. |
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Filter Simulation
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FilterCAD FilterCAD 3.0 is a computer aided design program to help users without special expertise in filter design to create filters using Linear Technology's monolithic filter ICs. With FilterCAD, you can design lowpass, highpass, bandpass and notch filters with a variety of responses, including Butterworth, Bessel, Chebychev, elliptic, minimum Q elliptic, and custom responses. |
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LT1568 Design Guide The LT1568 is a dual amplifier block useful for creating high frequency active filters. Implementation of lowpass and bandpass filters over a frequency range of 100KHz to 10MHz can be achieved using only a few external resistors. This easy to use Excel based Design Guide crunches the numbers to calculate all of the external component values and provides a "ready to build" schematic of the filter. |
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LT1567 Design Guide The LT1567 is a low noise (1.4nV/rtHz), 180MHz filter building block. This easy to use Excel based Design Guide crunches the numbers to calculate all of the external component values and provides a "ready to build" schematic of the filter. |
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Timing Design and Simulation
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PLLWizard Linear Technology PLLWizard is used to communicate with the LTC6945 and LTC6946 synthesizers. It uses the DC590 controller to translate between USB and SPI-compatible serial communications formats. It also includes advanced PLL design and simulation capabilities. You may use it to:
For use with the DC590 Controller board. |
Click here to view the complete installation instructions For Windows 7, Windows Vista, and Windows XP or Windows Server 2003 with at least .NET 2.0
For Windows XP 2003 without .NET 2.0 or Windows Server 2003 without .NET 2.0
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OscCalc Silicon-based oscillators are solid state clocks that operate from 1kHz to 170MHz. Each Linear Technology silicon oscillator is frequency programmable via pin-strapping, resistor connection, or serial interface (SPI or I2C). OscCalc is a quick and easy Excel based tool to help you find the right silicon oscillator for your application. Simply enter a few design requirements and the tool suggests parts, external components and programming settings required for you to get up and running with your design. |
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TimerBlox Designer TimerBlox parts are small, accurate and simple timing devices, designed for 5 basic operations: Voltage-Controlled Oscillation (VCO), Low Frequency Clocking, Pulse-Width Modulation (PWM), One-Shot Generation and Signal Delay. To speed and simplify your design process, TimerBlox Designer is an Excel based selection and synthesis tool that allows you to choose and configure the TimerBlox part best suited for your application.
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Data Converter Evaluation Software
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PScope (QuikEval II) The PScope System is a USB-based product demonstration and data acquisition system for use with Linear Technology’s high performance ADC's. The system consists of a USB Data Acquisition Controller board that connects to individual daughter cards for specific Linear Technology ADCs. The software collects and analyzes data from the ADC in both the time and frequency domains and displays relevant parameters for the device being evaluated. The software also provides an automatic update feature to keep the software current with the latest set of device drivers. Use PScope software with the DC718, DC890 and DC1371 Data Collection Boards. |
View PScope Videos |
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QuikEval System The QuikEval System is a USB-based product demonstration and data acquisition system for use with Linear Technology’s A/D, D/A, LED drivers and Powered Ethernet Controllers. The system consists of a USB Data Acquisition Controller board that connects to individual daughter cards for specific Linear Technology products. The software also includes web links to the appropriate device data sheets and provides an automatic update feature to keep the software current with the latest set of device drivers. Use QuikEval software with the DC590 Controller board. |
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Dust Networks Starter Kits
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SmartMesh IP Starter Kit The DC9000A SmartMesh IP Starter Kit provides all the tools necessary for evaluating the network performance of SmartMesh IP against the needs of your application, such as high reliability, bandwidth flexibility, and ease of installation, and provides the components needed for device integration and application development.
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Download SmartMesh IP Starter Kit Flyer User Documents
Power and Performance Estimator Spreadsheet Software Utilities
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SmartMesh WirelessHART Starter Kit The DC9007A SmartMesh WirelessHART Starter Kit provides all the tools necessary for evaluating the network performance of SmartMesh WirelessHART against the needs of your application, such as high reliability, bandwidth flexibility, and ease of installation, and provides the components needed for device integration and application development.
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Download SmartMesh WirelessHART Starter Kit Flyer User Documents
Power and Performance Estimator Spreadsheet Software Utilities
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