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LT1806/LT1807 - 325MHz, Single/Dual, Rail-to-Rail Input and Output, Low Distortion, Low Noise Precision Op Amps
LT1806/LT1807 - 325MHz, Single/Dual, Rail-to-Rail Input and Output, Low Distortion, Low Noise Precision Op Amps

... input and output unity-gain stable op amps that feature a 325MHz gain-bandwidth product, a 140V/μs slew rate and a 85mA output current. They are optimized for low voltage, high performance signal conditioning systems. The LT1806/LT1807 have a very low distortion of – 80dBc at 5MHz, a low input refer ...
P84432
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... The HS-24 Appliance can be field set to provide either Continuous Horn or Code 3 Horn. It can provide a continuous horn tone when connected directly to the Fire Alarm Control Panel (FACP), or synchronized Code 3 Horn when used in conjunction with the Sync Module (SM), Dual Sync Module (DSM) or Wheel ...
AN-4151 Half-Bridge LLC Resonant Converter Design Using ™) FSFR-Series Fairchild Power Switch (FPS
AN-4151 Half-Bridge LLC Resonant Converter Design Using ™) FSFR-Series Fairchild Power Switch (FPS

... peak gain frequency. When operating in capacitive region, the MOSFET body diode is reverse recovered during the switching transition, which results in severe noise. Another problem of entering into the capacitive region is that the output voltage becomes out of control since the slope of the gain is ...
UNIVERSITY OF CALIFORNIA
UNIVERSITY OF CALIFORNIA

Low Power Dissipation ADSL Line Driver (Rev. H)
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... high linearity without the need for excess open loop gain. Fixed multiple bias settings of the amplifiers allow for enhanced power savings for line lengths where the full performance of the amplifier is not required. To allow for even more flexibility and power savings, an IADJ pin is available to f ...
HMC373LP3 数据资料DataSheet下载
HMC373LP3 数据资料DataSheet下载

... The HMC373LP3 / HMC373LP3E are versatile, high dynamic range GaAs MMIC Low Noise Amplifiers that integrates a low loss LNA bypass mode on the IC. The amplifier is ideal for GSM & CDMA cellular basestation front-end receivers operating between 700 and 1000 MHz and provides 0.9 dB noise figure, 14 dB ...
MM74HC4046 CMOS Phase Lock Loop - Elektronik
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... This detector is a digital memory network. It consists of four flip-flops and some gating logic, a three state output and a phase pulse output as shown in Figure 6. This comparator acts only on the positive edges of the input signals and is thus independent of signal duty cycle. Phase comparator II ...
ADP1874 英文数据手册DataSheet 下载
ADP1874 英文数据手册DataSheet 下载

... Thermal overload protection Short-circuit protection Standalone precision enable input Integrated bootstrap diode for high-side drive Starts into a precharged output Available in a 16-lead QSOP package ...
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... for the Circuit Monitor to be able operate during a power system disturbance. DC control power is preferred. When a reliable source of control power is not available, an optional “Ride-Through Module” is available to maintain operation during most voltage disturbances. If even greater security is de ...
Selecting the Proper Wire Size for 4 and 8 Ohm
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... resistance for a system damping factor of 20 or higher. Divide the load impedance by the desired damping factor: 8 (Ω) ÷ 20 = 0.4 (Ω). Subtract the amplifier source impedance: 0.4 (Ω) - 0.04 (Ω) = 0.36 (Ω) Divide the result by the wire run length: 0.36 (Ω) ÷ 200 (ft) = 0.0018 (Ω/ft) From the table o ...
TDA3681 Multiple voltage regulator with switch and ignition buffer
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... A ScopeCorder satisfies this new measurement requirement by not only capturing voltage and current waveforms, but it combines these with real-time calculations of power and other electrical and physical parameters into a single measurement overview. ...
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... tight coil of many loops. Conventionally, a symbol like is used to represent an inductor. In the simplest case we can model an inductor as a long wire. In previous investigations we approximated the resistance of short wires to be zero ohms. We could justify such an approximation because the resista ...
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... power-electronic based grid-connected voltage source converters (GC-VSC), such as grid-connected inverters, static var generators (SVG), etc, are wildly used in the power grid [1]. It is required that these GC-VSCs should inject high quality ac current into the grid. However, the GC-VSC usually exhi ...
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... So, the current peaks ahead in time (earlier) of the voltage There is a difference in phase of /2 (900) why? When there is not much charge on the capacitor it readily accepts more and current easily flows. However, the E-field and potential between the plates increase and consequently it becomes mo ...
AAT4687 数据资料DataSheet下载
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... when powering low-voltage systems such as cell phones, MP3, and PDAs or when charging Lithium-Ion batteries from a poorly regulated supply. The AAT4687 is inserted between the power supply or charger source and the load to be protected. The AAT4687 IC includes a low resistance P-channel MOSFET, unde ...
current monitor - NRSGA National Railway Supply
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Dynamic linearization of non linear device using mixer of analog
Dynamic linearization of non linear device using mixer of analog

... comparator circuit. The amplifier gain is controlled by the digital circuit. The output of the amplifier is linear in nature as expected and verified by experiments. Capacitive type moisture sensor is easy to fabricate. A basic property of sensing moisture is the condensation of water molecule in th ...
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Homework 6 (Unit 3) Solutions (100 points)

CR fridges manual 08us.indd
CR fridges manual 08us.indd

... When connecting the refrigerator electrically, it is important that following points are considered: Always use cables of sufficient area. The area in the following table should be regarded as a minimum. * Always connect the refrigerator directly to the battery or to the battery main switch on the p ...
497-712
497-712

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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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