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MAX44242 20V, Low Input Bias-Current, Low
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... The device interfaces to both current-output sensors (photodiodes) (Figure 1), and high-impedance voltage sources (piezoelectric sensors). For current output sensors, a transimpedance amplifier is the most noise-efficient method for converting the input signal to a voltage. High-value feedback resis ...
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... inductance and capacitance. The part should be soldered directly to a printed circuit board. A ground plane should cover all unused areas of the component side of the board to provide a low impedance path to ground. Removing the ground planes from the area around the part reduces stray capacitance. ...
MAX13330/MAX13331 Automotive DirectDrive Headphone Amplifiers with Output Protection and Diagnostics General Description
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... their outputs biased about a nominal DC voltage (typically half the supply) for maximum dynamic range. Large coupling capacitors are needed to block this DC bias from the headphone. Without these capacitors, a significant amount of DC current flows to the headphone, resulting in unnecessary power di ...
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... Reference Decoupling Capacitor Pins. Decoupling capacitors are connected between these pins and the REFGND pin to decouple the reference buffer for each respective ADC. It is recommended to decouple each reference pin with a 10 μF capacitor. Provided the output is buffered, the on-chip reference can ...
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... has been penetrating into every aspect of society, from microwave heating to wireless communication systems, from military radar to test instrument. Among the building blocks of a microwave system, the microwave source, or the frequency generation unit, is a vital one, since it provides a stable ref ...
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... detection of problems with rotating machinery the track of temperature, rotational speed and motor flux equally find important for machine condition monitoring. The more sophisticated software such as LABVIEW® helps to improve the capabilities of vibration-monitoring systems. An example is National ...
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... +45mV input offset voltage, a 2.5µA current source between VCC and the noninverting input, and a 5µA current sink between the inverting input and ground (Figure 1). If the differential input is open, the 2.5µA current source pulls the input to approximately VCC 0.8V and the 5µA current sink pulls th ...
Analog Devices Welcomes Hittite Microwave Corporation www.analog.com www.hittite.com
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... Direct Parallel Mode - The attenuation state is changed by the control voltage inputs D0-D5 directly. The LE (Latch Enable) must be at a logic high at all times to control the attenuator in this manner. Latched Parallel Mode - The attenuation state is selected using the control voltage inputs D0-D5 ...
ILX511 - Ocean Optics
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... The MAX3460–MAX3464 are high-speed differential bus transceivers for RS-485 and RS-422 communications. They are designed to meet TIA/EIA-422-B, TIA/EIA-485-A, V.11, and X.27 standards. The transceiver complies with the Profibus specification providing +2.1V output level with a 54Ω load, 20Mbps data ...
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Heterodyne



Heterodyning is a radio signal processing technique invented in 1901 by Canadian inventor-engineer Reginald Fessenden, in which new frequencies are created by combining or mixing two frequencies. Heterodyning is used to shift one frequency range into another, new one, and is also involved in the processes of modulation and demodulation. The two frequencies are combined in a nonlinear signal-processing device such as a vacuum tube, transistor, or diode, usually called a mixer. In the most common application, two signals at frequencies f1 and f2 are mixed, creating two new signals, one at the sum f1 + f2 of the two frequencies, and the other at the difference f1 − f2. These new frequencies are called heterodynes. Typically only one of the new frequencies is desired, and the other signal is filtered out of the output of the mixer. Heterodynes are related to the phenomenon of ""beats"" in acoustics.A major application of the heterodyne process is in the superheterodyne radio receiver circuit, which is used in virtually all modern radio receivers.
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