Showing posts with label Analog. Show all posts
Showing posts with label Analog. Show all posts

Saturday, August 06, 2016

Analog Devices - Semiconductors and Signal Processing

They develop Analog Semiconductors, Digital Signal Processing, high performance signal processing solutions. Broadband Products, RF/IF Components, Embedded Processing and DSP.

Analog Devices - Semiconductors and Signal Processing

Products Include - Amplifiers, Processors, MEMS, A/D Converters, Temperature Sensors, RF Amplifiers, Differential Amplifiers, Thermal Management, D to A Converters, Microcontroller and Embedded Processing and DSP.

Circuit Note CN0147 - Powering a Fractional-N Voltage Controlled Oscillator (VCO) with Low Noise LDO Regulators for Reduced Phase Noise

Circuit Note CN0147 - Analog Devices

This circuit uses low noise, low dropout (LDO) linear regulators to supply power to a wideband integrated PLL and VCO. Wideband voltage controlled oscillators (VCOs) may have increased sensitivity to power supply noise, hence, ultralow noise regulators are recommended for best performance.

The evaluation board, which uses the ADP150 LDOs to power the ADF4350. The ADP150 represents the industry’s lowest noise LDO in the smallest package at the lowest cost.

Analog Devices, Inc
One Technology Way Norwood, MA 02062-9106, USA.

Thursday, November 06, 2014

SPICE Analog Simulation Program TINA TI

TINA is an easy-to-use, but powerful, circuit simulation program based on a SPICE engine. TINA-TI is a fully functional version of TINA, loaded with a library of TI macromodels plus passive and active models.
TINA-TI's new version 7.0 has changes from Version 6.0 in the following areas:

SPICE Analog Simulation Program TINA TI

SPICE Analog Simulation Program TINA TI

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages and waveforms. TINA's schematic capture is truly intuitive-a real "quickstart."
  • Provides support for switching power supply devices.
  • No limit to circuit size.
  • More SPICE models and example circuits included.
  • SMPS simulation capability.
  • Circuits developed in TINA-TI 7.0 will work with TINA Industrial version 7.
Application Schematic categories include:
  • Audio Op Amp Filters, Microphone Pre-Amplifiers
  • Control Loop for PI Temp Control and Current Loop 4-20mA
  • Signal Conditioner - Thermistor, Resistive Bridge, Capacitive Bridge
  • Reference Designs from device evaluation modules for SMPS Devices

Monday, June 02, 2014

Maxim Integrated - Analog Integration

They make unique and affordable semiconductor solutions in the areas or Analog and Mixed-signal. The digital and analog interface ICs are useful products in maxim for automotive and industrial product engineering.

Maxim Integrated - Analog Integration

They have Embedded Systems and Optical Communications in their Portfolio. They are well known for Power and Battery Management chips.

Some of products are - 1-Wire and iButton designs, Amplifiers, Analog Switches and Multiplexers, Clock Generation and Distribution, Data Converters, Design Services and Analog IP Blocks, Digital Potentiometers, Embedded Security, Energy-Measurement and Metering SoCs and more.

Novato smart sensor transmitter. - 4-20mA Loop-Powered Temperature Sensor with HART

The Novato reference design is a 16-bit, high-accuracy, loop-powered temperature transducer that transmits temperature information from a remote object to the central control unit over a 4–20mA current loop and using the highway addressable remote transducer (HART) communication protocol.

 Novato smart sensor transmitter.

HART Communication Protocol

The Novato reference design fully satisfies the HART physical layer requirements. The HART functions set is developed by AB Tech Solution, an engineering firm specialized in product development services for industrial automation applications.

Established in 1983, Maxim Integrated Products is a worldwide leader in design, development, and manufacture of linear and mixed-signal integrated circuits (ICs).

Maxim circuits "connect" the real world and digital world by detecting, measuring, amplifying, and converting real-world signals, such as temperature, pressure, or sound, into the digital signals necessary for computer processing.

Maxim Integrated
160, Rio Robles, San Jose, CA 95134 USA.

Wednesday, August 14, 2013

Analog Op-Amp Interactive Tutors

I have made some Web Widgets, these are analog opamp tutors. Interactive Tutorial with Simulated Meters and Potentiometers, demonstrating how Operational Amplifier functions in different configurations.

Interactive Tutorials using Virtual Electronic Components 

Slide the Potentiometers just like you would operate a Sliding Control. Drag the Knob on Pot to increase or decrease the resistance. The Resistance is shown is blue letters and dynamically alters value as you slide the pot.

The mV Source is varied by just moving mouse pointer over the two buttons, no clicking. This reduces finger strain and also you have a long lasting mouse. The mV buttons are special, the variation picks up speed if you let the mouse pointer remain on the button. This is Ramp-up and Ramp-down. This enables you to set it faster with just two buttons.

Finally you have a DVM a Digital Volt Meter that just Displays the Voltage at any Point, this readout value has to be noted down.

Op-Amp Simulation using Javascript

From Soldermans Basic Electronics

If you wish to examine the code - Analog Tutorials Project Page

Introducing a new delabs icon - Elektrick the Power Jedi

I am also attempting a Toy Scope or a waveform display.

Wednesday, November 21, 2012

Touchstone Semiconductor - Analog IC Solutions

Creates high-performance analog integrated circuit (IC) solutions that solve critical issues for electronics companies.

Touchstone Semiconductor - Analog IC Solutions

The Product Range include Amplifiers, Analog to Digital Converters, Comparators, Current Sense Amplifiers, Timers, Voltage Detectors and Voltage References.

micropower solar-harvesting application
"You can use the circuit in a micropower solar-harvesting application (Figure 3). Depending on the light, the BPW34 cells generate 10 to 30 µA at 0.8 to 1.5V. The active-diode circuit rectifies the peak harvested voltage in conditions of rapidly changing light and minimizes reverse leakage to the cells."

TS1101 - 2V to 25V, 1µA, 100µV Vos Bidirectional Precision Current-Sense Amplifiers

Touchstone Semiconductor
630 Alder Drive Milpitas, CA 95035 USA

Friday, August 24, 2012

Avago Technologies Semiconductors

Analog, Mixed-signal and Optoelectronic Components and Subsystems

Avago Technologies Semiconductors 
Avago Technologies brings together the capabilities and track record of an established global leader with the "energy and responsiveness of a startup. We spent our first three decades as part of HP, ......"
Precision Optically Isolated Voltage Sensor
  • Color Management & Sensors
  • ASICs
  • Motion Control Solutions
  • Light Emitting Diodes (LEDs)
  • Infrared Transceivers
  • Fiber Optics
Precision Optically Isolated Voltage Sensor

"Optical isolation amplifiers designed specifically for voltage sensing. Its 2V input range and high 1GΩ input impedance, makes it well suited for isolated voltage sensing requirements in electronic power converters applications including motor drives and renewable energy systems.."

Thursday, January 14, 2010

Advanced Linear Devices ALD - Precision CMOS IC

Analog semiconductors for OEM manufacturers of industrial controls, instrumentation, computers, medical devices, automotive, and telecommunications products.

Advanced Linear Devices ALD - Precision CMOS IC

Energy Harvesting Modules

Some Products Like -
  • Ultra-low Input Signal Power Rail-to-Rail CMOS OpAmps
  • Ultra-low Charge Injection Low Voltage Analog Switches
  • High resolution Dual Slope Integrating Analog Processors
  • ±5 1/2 Digit DVM Digital Voltmeter Boards
Energy Harvesting Modules 

"These modules capture residual energy as a by-product of a natural environmental phenomenon or industrial process, storing and and conditioning the energy for use at a later time."

ALD's mixed signal ASIC design

ALD's standard linear product as Breadboard Design Kit for Mixed Analog/Digital ASIC. Includes Opamps, Comparators, Mosfets etc. Create a Function-Specific Mixed ASIC chip.

Advanced Linear Devices, Inc
415 Tasman Drive, Sunnyvale California 94089

Wednesday, February 11, 2009

Berkeley Design Automation - Analog and RF SPICE

"Berkeley Design Automation (BDA) is the electronic design automation (EDA) industry leader in next-generation analog, RF, and mixed-signal integrated circuit (IC) verification."

Berkeley Design Automation - Analog and RF SPICE (wayback)

Berkeley Design Automation - Analog and RF SPICE

(Update - BDA now part of Mentor Graphics)

Analog FastSPICE is based on Precision Circuit Analysis technology. This technology is a proprietary combination of innovative applied mathematics and optimized numerical analysis.

Analog FastSPICE AFS  Mentor Graphics

The Analog FastSPICE (AFS) Platform is the world’s fastest nanometer circuit verification platform for analog, RF, mixed-signal, and custom digital circuits.

For silicon-accurate characterization it includes the industry's only comprehensive full-spectrum device noise analysis and a high-productivity Analog Characterization Environment.

Tuesday, February 10, 2009

Automatic Integrated Circuit Modeling Spice

Automatic Integrated Circuit Modeling Spice

Automatic Integrated Circuit Modeling Spice (AIM-Spice) is a version of SPICE, the most popular analog circuit simulator.

AIM-Spice is a new version of SPICE running under the Microsoft Windows and Linux operating systems. AIM-Spice for Windows is capable of displaying graphically the results of a simulation in progress, a feature that allows the operator to terminate a run based on an instant information on intermediate simulation results.

SPICE - The simulator was developed at the University of California, Berkeley, and was first released in 1972. Many scientists at Berkeley and other institutions contributed to the development and improvement in subsequent versions of SPICE.

eCircuit Center - Spice Schematics

"The goal is a site where the learning of electronics is hands-on and fun. And the SPICE circuit simulator is a great software tool to achieve that goal. It hit me the first time I used SPICE - simulating is fun! And because it's easy to use, I've spent a lot of time building and exploring circuits." - Rick

eCircuit Center - Spice Schematics

SPICE is capable of performing both AC (frequency) Analysis and Transient (time) Analysis. SPICE also performs a number of other analyses like DC, Sensitivity, Noise and Distortion.

SPICE Basics, SPICE Commands, Circuit Collection

"At the core of the function generator is a triangle wave generator. How do you generate a triangle wave? The most common way is to get a capacitor and then alternate charging it and discharging it. But how to you get a nice linear ramp across the capacitor?"

eCircuit Center - Spice Schematics

Triangle and Square-Wave Generator

Simulation Circuit Examples -
  • Programmable Gain Amplifier (PGA) Op Amp
  • Single-Supply AC Inverting Amplifier
  • Instrumentation Amp (3 Op Amp)
  • Sensor Bridge with Current Bias
  • The PID Controller
  • Pulse Width Modulation
  • Precision Half-Wave Rectifier

LTspice IV - Spice III simulator

LTspice IV - Spice III simulator

LTspice IV is a high performance Spice III simulator, schematic capture and waveform viewer with enhancements and models for easing the simulation of switching regulators.

LTspice Demo Circuit Collection

Monday, November 03, 2008

Intersil - Analog and Power Semiconductors

Intersil's products include amplifiers, analog front ends, communication interfaces, data converters, digital potentiometers, display solutions, DSL solutions, optical storage products, power management products, real time clocks, switches/MUX's, etc.

Intersil - Analog and Power Semiconductors

Intersil has developed into a leading analog semiconductor manufacturer with five specialized product groups: Consumer Power, Consumer Electronics, Analog Mixed Signal, Industrial Communications and Automotive & Military/Space Specialties.

iSim Online Designer
Advanced design tool for creating complex solutions, this is available both as a software download or an online app.

Capture schematic, view waveforms, perform application analysis and more. It is an interactive web-based design tool for selecting and simulating devices from Intersil's broad portfolio. (power management devices and operational amplifiers.)

Remote Strain Gauge Reference Design

"Intersil's applications engineer, Daniel Goodhew, presents the remote strain gauge reference design using Nextreme's thermal energy harvester and Intersil's low power, low noise chopper amplifier."


The original Intersil was founded in 1967. After being acquired by General Electric Corp in 1981, it was sold to Harris Corporation in 1988, at which point the name was retired. Intersil at Wikipedia.

My own analog design carrer (while in college) started with national semiconductor databooks and Intersil CMOS Hot ideas.

Wednesday, October 15, 2008

Linear Technology - Analog and Interface Solutions

They have unique Interface products that make blending the real world analog and the digital electronics that makes embedded computing possible.

They have Solutions in power management, data conversion, signal conditioning, wireless and circuit and device interface. 

Linear Technology - Analog and Interface Solutions

Some Special Products include - SmartMesh WirelessHART, Signal Chain µModule Receivers, Supercapacitor Chargers, Optical Communications and µModule LED Drivers.  

Linear Technology Corporation was founded in 1981 as a manufacturer of high performance linear integrated circuits. Linear Technology products  include high performance amplifiers, comparators, voltage references, monolithic filters, linear regulators, DC-DC converters, battery chargers, data converters, communications interface circuits, RF signal conditioning circuits, and many other analog functions.

The DC9022 SmartMesh WirelessHART RF Certified Starter Kit provides all the tools for evaluating SmartMesh network performance for your application needs, including high reliability, ultralow power, scalability and ease of installation. This accelerates device integration and application development.

The DC9018A-C Evaluation/Development Mote Modules feature easy-to-probe signal pins. In addition, the starter kit provides access to both manager and mote software application programming interfaces (APIs) to enable application software development.

Linear Technology
1630 McCarthy Blvd. Milpitas, CA  95035-7417, USA.

OpenEEG hardware - Amplifiers

OpenEEG hardware - Amplifiers

OpenEEG hardware - Amplifiers

Design documentation

Amplifier schematic [55kb] (aka analogue board; contains two amplifiers) and digital board schematic [48kb] as images.

Note -

I found the amplifier designs extremely good as a learning material. Medical instruments after development should undergo a approval process and have high product safety requirements. So above circuits to be used for study only, not for practical applications. When integrating, Medical professionals have to beta test it and after approval used for further tests.

A simulated electrical noise signal source for experimentation is good enough for Degree Projects.

- ananth

Wednesday, April 16, 2008

National Semiconductor - Texas Instrurments

National Semiconductor was an American semiconductor manufacturer, that specialized in analog devices and subsystems, formerly headquartered in Santa Clara, California, USA.
National Semiconductor Corporation Logo

The products of National Semiconductor included power management circuits, display drivers, audio and operational amplifiers, communication interface products and data conversion solutions.

National Semiconductor

National's key markets included wireless handsets, displays and a variety of broad electronics markets, including medical, automotive, industrial, and test and measurement applications.

On September 23, 2011, the company formally became part of Texas Instruments as the "Silicon Valley" division.

Wiki of National Semiconductor

An Exquisite Evaluation Board from National Semiconductor

National Semiconductor

SD356EVK Evaluation Kit Board for LMH0356 SDI Reclocker

Wednesday, October 31, 2007

LM336-2.5 - Voltage Reference Diode

LM336-2.5 - Voltage Reference Diode

The LM136-2.5/LM236-2.5 and LM336-2.5 integrated circuits are precision 2.5V shunt regulator diodes. These monolithic IC voltage references operate as a low-temperature-coefficient 2.5V zener with 0.2 dynamic impedance. A third terminal on the LM136-2.5 allows the reference voltage and temperature coefficient to be trimmed easily.


  • Low temperature coefficient
  • Wide operating current of 400 µA to 10 mA
  • 0.2 dynamic impedance
  • ±1% initial tolerance available
  • Guaranteed temperature stability
  • Easily trimmed for minimum temperature drift
  • Fast turn-on

(This was used by me in the manufacture of Indicators and Controllers and was used in place of ICL8609 (not sure) as that was not in supply)

Related Resources -