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CS1611-FSZ Datasheet
CS1611-FSZ Datasheet

Cascode Current Mirror for a Variable Gain (LNA) Lini Lee
Cascode Current Mirror for a Variable Gain (LNA) Lini Lee

... receiver from reaching saturation. Therefore, a cascode current mirror is added to act as the variable gain stage, completing the gain-adjustable mechanism [5]. 2. 1 Inductive Source Degenerated LNA There are a few existing LNA papers which has been presented in the range of frequency between 1.6 - ...
Evaluates:  MAX2620 MAX2620 Evaluation Kit ________________General Description ____________________________Features
Evaluates: MAX2620 MAX2620 Evaluation Kit ________________General Description ____________________________Features

... The resonator tank circuit is critical in determining VCO performance. It typically contains a varactor (voltagevariable capacitance) for voltage-tuning the center frequency. For best performance, use high-Q components and choose values carefully. The external resonant circuit on the MAX2620 EV kit ...
Sensor Array 742 x 554 Pixels Frame Buffer
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Low-Power Signal Conditioning for a Pressure
Low-Power Signal Conditioning for a Pressure

... Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids all express and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice. TI is not responsible or liable f ...
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Monolithically integrated 10Gbit/s silicon modulator with driver in
Monolithically integrated 10Gbit/s silicon modulator with driver in

... already realized in IHP technology (figure 4d), and similar modulators have been reported at 50Gbit/sec [5]. Therefore, MZM modulators with driver circuits operating at >25Gbit/sec are possible with appropriate driver designs. Secondly, optical loss is high due to some design choices. However, this ...
Base Station Receiver Design Using a Direct
Base Station Receiver Design Using a Direct

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M A N U A L Classic Q3 240-840A 4 Quadrant

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ESD8008 - ESD Protection Diode

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High Common-Mode Voltage, Single-Supply Difference Amplifier AD8202

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No Slide Title

Pavlov`s Dog Associative Learning Demonstrated
Pavlov`s Dog Associative Learning Demonstrated

... meaning that there is a correlation between the events leading to the activation of the output neuron and the input events coming to the synapse. This is implemented by ensuring that only the interaction of pre- and post-synaptic pulses leads to a significant increase in the conductivity of the NOMF ...
Automotive Grade AUIRS212(7,71,8,81)S
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... plotted in each figure is generated from actual lab data. A large number of individual samples were tested at three temperatures (-40 ºC, 25 ºC, and 125 ºC) in order to generate the experimental curves. The line consists of three data points (one data point at each of the tested temperatures) that h ...
CSCI 2980: Introduction to Circuits, CAD, and Instrumentation
CSCI 2980: Introduction to Circuits, CAD, and Instrumentation

AD8063
AD8063

... Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. N ...
Important information on POH (power-on hours)
Important information on POH (power-on hours)

... costs, and you have the advantage of sophisticated, high-density architectures. Precisely because of their compact dimensions and high level of integration, these controllers are subjected to elevated thermal loads. Their design does not permit continuous operation over many years when all internal ...
Further Development of a High Gain Microphone
Further Development of a High Gain Microphone

... introduced in the first section of this thesis work. Most recording chain components are briefly explained and signal level ranges are investigated. The main design focus was put on improving the analog circuit design, although, for the sake of clarity the basic structure of the digital control syst ...
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MAX17019 Evaluation Kit Evaluates: General Description Features
MAX17019 Evaluation Kit Evaluates: General Description Features

... The MAX17019 evaluation kit (EV kit) presents the MAX17019 high input-voltage quad-output controller in a typical application setup. The EV kit operates from a 5.5V to 38V input range. The high input voltage of 38V makes this device ideal for automotive applications. High-voltage controller A is use ...
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How to Measure the Control Loop of DCS-Control™ Devices Application Report ...............................................................................................

... Although the voltage injection method is still used for DCS-Control™ devices, Figure 2 shows a few changes in the implementation with the TPS62130 used as an example. For one, the DCS-Control™ architecture has two control loops, which includes a direct connection to Vout (VOS) as well as a connectio ...
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Keithley 2280S
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Review
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... and the time-varying voltage by a phasor VC as shown below ...
< 1 ... 1235 1236 1237 1238 1239 1240 1241 1242 1243 ... 2207 >

Resistive opto-isolator



Resistive opto-isolator (RO), also called photoresistive opto-isolator, vactrol (after a genericized trademark introduced by Vactec, Inc. in the 1960s), analog opto-isolator or lamp-coupled photocell, is an optoelectronic device consisting of a source and detector of light, which are optically coupled and electrically isolated from each other. The light source is usually a light-emitting diode (LED), a miniature incandescent lamp, or sometimes a neon lamp, whereas the detector is a semiconductor-based photoresistor made of cadmium selenide (CdSe) or cadmium sulfide (CdS). The source and detector are coupled through a transparent glue or through the air.Electrically, RO is a resistance controlled by the current flowing through the light source. In the dark state, the resistance typically exceeds a few MOhm; when illuminated, it decreases as the inverse of the light intensity. In contrast to the photodiode and phototransistor, the photoresistor can operate in both the AC and DC circuits and have a voltage of several hundred volts across it. The harmonic distortions of the output current by the RO are typically within 0.1% at voltages below 0.5 V.RO is the first and the slowest opto-isolator: its switching time exceeds 1 ms, and for the lamp-based models can reach hundreds of milliseconds. Parasitic capacitance limits the frequency range of the photoresistor by ultrasonic frequencies. Cadmium-based photoresistors exhibit a ""memory effect"": their resistance depends on the illumination history; it also drifts during the illumination and stabilizes within hours, or even weeks for high-sensitivity models. Heating induces irreversible degradation of ROs, whereas cooling to below −25 °C dramatically increases the response time. Therefore, ROs were mostly replaced in the 1970s by the faster and more stable photodiodes and photoresistors. ROs are still used in some sound equipment, guitar amplifiers and analog synthesizers owing to their good electrical isolation, low signal distortion and ease of circuit design.
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