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Interpoint Products
Interpoint Products

... aerospace, space, military, medical and commercial applications. Each Solution is ISO 9001 and AS9100 certified and committed to Operational Excellence and world-class processes. From the Mars Science Lab to commercial aircraft; from implantable devices to missiles and fighter aircraft, our products ...
MV POWER CAPACITORS AND BANKS
MV POWER CAPACITORS AND BANKS

... Doing so other protection can’t operate and capacitor can stay in service with a small capacitance reduction. The high reliability of these solutions allows to design capacitors with an higher dielectric stress and so units of reduced volume and higher reactive power per volume unity. ICAR available ...
BQ24040 数据资料 dataSheet 下载
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... The bq2404x series of devices are highly integrated Li-ion linear chargers devices targeted at space-limited portable applications. The devices operate from either a USB port or AC adapter. The high input voltage range with input overvoltage protection supports low-cost unregulated adapters. The bq2 ...
差分放大器系列AD8337 数据手册DataSheet 下载
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... gain trim applications and for driving high speed analog-todigital converters (ADCs). ...
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LTC1286/LTC1298 Micropower Sampling 12
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... designer. The use of non-linear voltage amplitude limiting functions is the most commonly thought of approach for surge protection. However, today there are non-linear current amplitude limiting functions along with extensively used linear surge attenuating functions. Surge protection gurus like Ron ...
Less energy. Enhanced performances.
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A filtering technique to lower oscillator phase noise Hegazi, Emad
A filtering technique to lower oscillator phase noise Hegazi, Emad

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... 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instru ...
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MAX3243 数据资料 dataSheet 下载

... Supply voltage range, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to 6 V Positive output supply voltage range, V+ (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to 7 V Negative output sup ...
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... explore other possibilities (e.g. Marx Generator) ...
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... amplifiers, I and Q downconverting mixers, low-IF variablegain amplifiers, and bandpass filters providing in excess of 42dB of image rejection. The parts are capable of operating with either high-side or low-side local oscillator (LO) injection. The MAX2160/EBG’s variable-gain amplifiers provide in ...
When power is supplied by V or V , the
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AN29 - Some Thoughts on DC/DC Converters
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IEC specifications for LV assembly switchboards
IEC specifications for LV assembly switchboards

... easily be read or operated; their centreline will be located within a zone between 0,2 m and 2 m above the base of the Assembly. Actuators for emergency switching devices (see 536.4.2 of IEC 60364-5-53) will be accessible within a zone between 0,8 m and 1,6 m above the base of the Assembly. Unless o ...
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Model 4300C - Valhalla Scientific
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Enhanced five-channel PMOS load switches
Enhanced five-channel PMOS load switches

< 1 ... 316 317 318 319 320 321 322 323 324 ... 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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