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50 μA, 2 mm × 1.7 mm WLCSP, Low Noise, Heart Rate Monitor for
50 μA, 2 mm × 1.7 mm WLCSP, Low Noise, Heart Rate Monitor for

... eliminating motion artifacts and the electrode half cell potential. This filter is tightly coupled with the instrumentation architecture of the amplifier to allow both large gain and high-pass filtering in a single stage, thereby saving space and cost. ...
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... the total drive power is VS/2 × IOUT, some of which is dissipated in the package and some in the load (VOUT × IOUT). The difference between the total drive power and the load power is the drive power dissipated in the package. RMS output voltages should be considered. ...
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...  Filters are circuits that are capable of passing signals within a band of frequencies while rejecting or blocking signals of frequencies outside this band. This property of filters is also called “frequency selectivity”.  Filter ...
LM138/LM338 5-Amp Adjustable Regulators
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... circuit generates positive and negative voltages from a single input, and then passes them through a non-linear processing. The results are used to generate a single-ended output. Since the input and the output are both single-ended, this circuit is differential only in the non-linear processing sec ...
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... of low power, digital portable audio products. Featuring a high efficiency headphone amplifier and supporting economic single supply voltages down to 1.8V, the ultra-low 2.5mW power consumption extends music playback time for battery operated equipment. Eight analogue input pins allow multiple audio ...
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... or farther with the use of shielded wire, without errors caused by noise or lead resistance in the wires. These sensor wires are then terminated at the two-wire transmitter and converted into a 420mA signal which is highly immune to noise and not affected by lead resistance, both of which can cause ...
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J.A. Santiago-Gonzalez, K.K. Afridi and D.J. Perreault, Design of Resistive-Input Class E Resonant Rectifiers for Variable-Power Operation, 14th IEEE Workshop on Control and Modeling for Power Electronics (COMPEL ’13), June 2013.
J.A. Santiago-Gonzalez, K.K. Afridi and D.J. Perreault, Design of Resistive-Input Class E Resonant Rectifiers for Variable-Power Operation, 14th IEEE Workshop on Control and Modeling for Power Electronics (COMPEL ’13), June 2013.

... output voltage of 12 V dc and output power ranging from 18 W down to 1.8 W (i.e., a 10:1 power range ratio). We would like the input impedance of the rectifier to be as resistive as possible (i.e., minimize the worst-case phase angle of the input impedance) over the entire power range, while using a ...
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... • If two sinusoids are in phase, then this means that the reach their maximum and minimum at the same time. • Sinusoids may be expressed as sine or cosine. • The conversion between them is: sin t  180    sin t cos t  180    cos t sin t  90    cos t cos t  90   sin t ...
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... A common square wave generator circuit based on an op-amp is shown in Figure 1. One of the first things you might notice about this circuit is that it has no input port other than the connections to the power supply. Rather than serving as processors of signals (like amplifiers and filters, which ha ...
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Radio transmitter design

A radio transmitter is an electronic device which, when connected to an antenna, produces an electromagnetic signal such as in radio and television broadcasting, two way communications or radar. Heating devices, such as a microwave oven, although of similar design, are not usually called transmitters, in that they use the electromagnetic energy locally rather than transmitting it to another location.
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