A wave analyzer is an instrument designed to measure relative amplitudes of single frequency components in a complex waveform. Basically, a wave instrument acts as a frequency selective voltmeter which is tuned to the frequency of one signal while rejecting all other signal components.
A wave analyzer is an instrument designed to measure relative amplitudes of single frequency components in a complex waveform. Basically, a wave instrument acts as a frequency selective voltmeter which is tuned to the frequency of one signal while rejecting all other signal components.
Band pass filter is defined in informative way so any one get knowledge from it and its basics also the multisim simulation circuit is present in slides if any one want then he/she will contact through mail or linkedin account.
In communication system, intersymbol interference (ISI) is a form of distortion of a signal in which one symbol interferes with subsequent symbols. This is an unwanted phenomenon as the previous symbols have similar effect as noise, thus making the communication less reliable.
In communication system, the Nyquist ISI criterion describes the conditions which when satisfied by a communication channel (including responses of transmit and receive filters), result in no intersymbol interference(ISI). It provides a method for constructing band-limited functions to overcome the effects of intersymbol interference.
In this presentation we described about Signal Filtering. If you have any query regarding signal filtering or this presentation then feel free to contact us at:
http://www.siliconmentor.com/
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Axpert i-sine - Multi Function Active Harmonic Filteractiveharmonics
AXPERT-i-sine is designed with the intelligent control algorithm which dynamically changes the switching frequency to optimize the performance & efficiency. The performance of AXPERT-i-sine is less affected by supply voltage harmonic distortion. AXPERT-i-sine provides selective harmonic attenuation up to 51st order.
Band pass filter is defined in informative way so any one get knowledge from it and its basics also the multisim simulation circuit is present in slides if any one want then he/she will contact through mail or linkedin account.
In communication system, intersymbol interference (ISI) is a form of distortion of a signal in which one symbol interferes with subsequent symbols. This is an unwanted phenomenon as the previous symbols have similar effect as noise, thus making the communication less reliable.
In communication system, the Nyquist ISI criterion describes the conditions which when satisfied by a communication channel (including responses of transmit and receive filters), result in no intersymbol interference(ISI). It provides a method for constructing band-limited functions to overcome the effects of intersymbol interference.
In this presentation we described about Signal Filtering. If you have any query regarding signal filtering or this presentation then feel free to contact us at:
http://www.siliconmentor.com/
Jitter measurements are commonly done taking small snapshots in time, yet systems often experience jitter from sources that occur over relatively long time intervals, which may not be accounted for using short time interval measurements methods.
In this webinar we will present the application of a real time, digital clock recovery and trigger system to the measurement of jitter on clock and data signals. Details of the measurement methodology will be provided along with measurement examples on both clock and data signals.
You Will Learn:
- What is Jitter
- Different types of Jitter
- Jitter measurement techniques
- Benefits of Jitter analysis using real-time DDC techniques
Axpert i-sine - Multi Function Active Harmonic Filteractiveharmonics
AXPERT-i-sine is designed with the intelligent control algorithm which dynamically changes the switching frequency to optimize the performance & efficiency. The performance of AXPERT-i-sine is less affected by supply voltage harmonic distortion. AXPERT-i-sine provides selective harmonic attenuation up to 51st order.
When it comes to high performance signal chains, you need high performance power solutions. Noise sensitive
circuits such as analog-to-digital converters (ADCs), digital-to-analog converters (DACs), amplifiers, and phase
lock loops (PLLs)—as well as FPGAs—demand low noise power supplies that require specialized design
techniques. Engineers spend hours trying to figure out how to power these circuits without adding noise.
This presentation will focus on understanding various methods for not only approaching but meeting system
requirements. The session will introduce tested solutions and layout considerations that must be taken into
account when designing with switching regulators and low drop out (LDO) regulators.
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A simulator to reproduce fast rise-up noises which are generated when switching ON / OFF electric current on the inductive load.
It can be used for performance evaluation of electronic equipment upon reproduction of line noises which are intruded to the power supply lines or induced noises onto the telecommunication lines.
oise simulator can simulate high frequency noise generated ON/OFF at contact point of switch or relay, arc caused by electric motor. It can evaluate the resistibility of electric devices.
Pulse contains high frequency and by energy volume is changeable by adjusting pulse width. The high reproduction noise test of noise trouble in the market can be conducted.
To solve the trouble in the market high frequency, energy volume of test pulse can be adjustable
A Data Sheet Spec Sheet example with real Test DataHTCS LLC
ANAVIEW is a leading Class-D Amp Manufacturer. The attached data sheet & spec sheet is just one great example of their patented and leading technology, especially in view of real THD test data
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Chuyên cung cấp các thiết bị: Đèn báo nút nhấn, Relay, Timer, Contactor, MCCB ELCB, Biến tần, Van, Thiết bị cảm biến, phụ kiện tủ điện, .... Từ các thương hiệu hàng đầu trên thế giới.
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NF Programmable Current Amplifier E ca5350
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Application: Small current measurements, using optical sensors (PD, APD, PMT) Photodetection with PMT Photodiode Scanning tunneling Microscopy spectroscopy quantum electronics semiconductors MEMS
Webinar Slides: Probing in Power Electronics - What to use and whyteledynelecroy
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4. Conventional Chopper Op Amp Frequency Domain Figure 1. Low-speed zero-offset path (10,000x gain of high-speed path)
5. New Synchronous Notch Filter Technology fc 3fc 5fc 7fc Synchronous clocking assures that notches align with harmonics Response (dB) Log Frequency Figure 1. Switched-capacitor notch filter with synchronous integration included Synchronous Filter Response
6. TI’s Zero-Drift Amplifiers Integrated Function Power Consumption Operational Amplifiers OPA333 Offset: 0.01µV Drift: 0.01µV/°C BW: 350kHz I Q = 0.025mA Vs: 1.8V Instrumentation Amplifiers INA333 Offset: 20µV Drift: 0.05µV/C BW: 150kHz I Q = 0.075mA Vs: 1.8V RRIO Current Shunt Monitors INA210 Offset: 35µV Drift: 0.5uV/C BW: 14 kHz I Q = 0.1mA Vs: 2.7V 1% accuracy Bi-directional
7. Single Supply Instrumentation Amplifiers Low Power < 500uA 500 400 300 200 100 50 Supply Current (uA) 20 50 250 500 10000 Voltage Offset uV INA333 INA321 INA322 INA332 INA122 INA126 INA118 INA331 INA125 1.8V 2.2V 2.7V 2.7V 2.7V 2.7V 2.7V 2.7V 2.7V Zero Drift Rail-to-Rail I/0 Low cost Dual available Low Drift High CMRR Sleep Mode Internal Reference RR0 and Wide BW Shutdown Dual available RRO and Wide BW Shutdown, Low cost Dual Available RRO, Shutdown Low cost, Dual avail RRO, Shutdown Dual Available RRO CMD to Ground
This is a training module on the Texas Instruments INA333 Zero Drift Instrumentation Amplifier
Welcome to the training module on INA333 – Zero Drift Instrumentation Amplifier. This training module introduces TI’s zero-drift technology and INA333 zero drift Instrumentation Amplifier.
One of TI’s main innovative focus’s over the last several years has been in Zero Drift technology using chopper amplifier circuitry to minimize voltage offset and drift. Chopper amplifiers themselves are not necessarily a new idea. The first chopper amplifier patent was filed in 1949. These earliest implementations of the chopper amplifiers are using mechanical vibrators to “chop” the DC input signal to create an AC signal. The AC signal was then amplified (tube/valve circuitry) and synchronously rectified to recover the DC component. This technique did provide very low offset voltage and very low offset voltage drift but it really had very poor bandwidth. It also added considerable high frequency chopping noise that required additional filtering and further limited the useful bandwidth of the amplifier..
More modern implementations of Zero Drift technology are quite common now in the analog industry. The essential element of a modern chopper amplifier is an input stage with synchronous commutation of the input and output. The DC offset of the amplifier stage is effectively inverted on each half-cycle which results in the averaging of the offset voltage to zero. An unavoidable artifact of the chopping process, however, is spurious noise produced by the chopper stabilization circuitry that is a correlated, systematic noise harmonically related to the chopping frequency. Symmetric divide-by-two clocking creates only odd-order harmonics, but these left over odd order harmonic noise earns the modern chopper topology a reputation as still being fundamentally noisy and limits is use in noise sensitive applications.
Texas Instruments introduced a Zero Drift chopping topology to solve these problems. Instead of the noisy odd order harmonics, TI designs incorporate a proprietary synchronous notch filter to attenuate the chopping noise inherent in the Zero Drift design and filter out the odd order harmonics. The result is that the chopping noise is reduced to far below the broadband noise of the amplifier. TI’s Zero Drift products achieve industry leading noise performance.
Because of TI’s Zero Drift implementation, TI has become one of technology leaders in the Zero Drift application. Devices in the Zero Drift family include operational amplifiers such as the OPA333, current shunt monitors like the INA210 family, and instrumentation amplifiers like INA333 which we will introduce in details in the rest of the pages.
The INA333 zero-drift topology expands on TI’s already well balanced, low power, single supply instrumentation amplifier family featuring devices with wide bandwidth, rail-to-rail outputs, common mode input voltage to ground, high CMRR and shutdown capability.
The zero-drift INA333 offers the lowest power, lowest input bias current, and best overall voltage offset/drift combination of any low, single supply instrumentation amplifier on the market. Designed with TI’s Zero Drift technology the INA333’s low offset/drift combination makes it ideal for applications requiring the best long term stability achievable. And with a proprietary design technique to attenuate chopping noise, the INA333 also achieves industry leading noise performance in the low power, low offset, instrumentation amplifier sub-market. With a supply current of 75uA that is 10% lower than its closest competition, and being capable of running on a single1.8V supply, the INA333 will be the easy choice for analog designers being pushed for lower power, more efficient solutions. And with only 200pA input bias current, the INA333 also can be used in high impedance applications where low power and low voltage offset instrumentation amplifiers have never gone before.
The INA333 targets a wide variety of precision, low-power applications, such as portable medical and portable instrumentation. However, the INA333 is also important for other major markets such as data acquisition and weigh scales because of its breakthrough capability of achieving low power and bias current without compromising its offset, stability, CMRR, or noise. If the application requires a single supply instrumentation amplifier, the INA333 is a great place to start.
The figure shows the basic connections required for operation of the INA333. Good layout practice mandates the use of bypass capacitors placed close to the device pins as shown. The output of the INA333 is referred to the output reference (REF) terminal, which is normally grounded. Gain of the INA333 is set by a single external resistor, RG, connected between pins 1 and 8. The stability and temperature drift of the external gain setting resistor, RG, also affects gain. To ensure stability, avoid parasitic capacitance of more than a few picofarads at the RG connections.
The INA333 can be operated on power supplies as low as ±0.9V. Most parameters vary only slightly throughout this supply voltage range. Operation at very low supply voltage requires careful attention to assure that the input voltages remain within the linear range. Voltage swing requirements of internal nodes limit the input common-mode range with low power-supply voltage. The 4 figures show the range of linear operation for various supply voltages and gains.
The INA333 can be used on single power supplies of +1.8V to +5.5V. The figure illustrates a basic single-supply circuit. The output REF terminal is connected to mid-supply. Zero differential input voltage demands an output voltage of mid-supply. Actual output voltage swing is limited to approximately 50mV above ground, when the load is referred to ground as shown. With single-supply operation, VIN+ and VIN– must both be 0.1V above ground for linear operation. For instance, the inverting input cannot be connected to ground to measure a voltage connected to the non-inverting input.
One application of particular interest for the INA333 is portable ECG systems or heart rate monitors. In an ECG application the action potential created by the heart wall contraction spreads electrical currents from the heart throughout the body. This creates different potentials at different points on the body which can be sensed by electrodes on the skin surface. The signal amplitude is generally around 1 to 2mV peak to peak, with measurement difficulties coming in due to the presence of large DC offset from the electrode to skin interface and 50/60 Hz noise interference from power supplies, RF interference, or even pace makers for example. The INA333 offers high 100 dB CMRR to reduce the 50/60 Hz line noise common to both inputs, as well as offering 20uV of offset keeping the measurement error below 2% on a 1mV signal. Additionally, the 75uA supply current and 1.8V supply enables maximum power efficiency and extends the life of the battery.
Another good example of an application that will benefit from the INA333 is weigh scales or bridge sensor systems. In a bridge sensor system, normally full scale output voltages are in the 10 mV to 100 mV range or 2mV per volt of excitation, and need to be amplified in a data acquisition system. The key role of the instrumentation amplifier is to amplify the very small differential input voltage and reject the common-mode input voltage. But for the best performance, the instrumentation amplifier must have excellent long term stability with regard to offset drift and gain because real world sensors have span and offset errors that are ever changing over temperature. Also, many bridge pressure sensors have a nonlinear output with applied force. Here the accuracy of the amplified input signal must be guaranteed over years of operation. A Zero Drift instrumentation amplifier such as the INA333 easily meet these stringent requirements by achieving an offset drift of 0.05µV/°C.
Thank you for taking the time to view this presentation on “ INA333 – Zero Drift Instrumentation Amplifier” . If you would like to learn more or go on to purchase some of these devices, you may either click on the part list link, or simply call our sales hotline. For more technical information you may either visit the TI site – link shown – or if you would prefer to speak to someone live, please call our hotline number, or even use our ‘live chat’ online facility.