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CHAPTER 2: FEEDBACK AND STABILITY
CHAPTER 2: FEEDBACK AND STABILITY

OPA657 - Texas Instruments
OPA657 - Texas Instruments

... Very low level signals can be significantly amplified in a single OPA657 gain stage with exceptional bandwidth and accuracy. Having a high 1.6-GHz gain bandwidth product gives greater than 10-MHz signal bandwidths up to gains of 160 V/V (44 dB). The very low input bias current and capacitance suppor ...
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AD8137 (Rev. E)
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... common-mode feedback architecture allows its output commonmode voltage to be controlled by the voltage applied to one pin. The internal feedback loop also provides inherently balanced outputs as well as suppression of even-order harmonic distortion products. Fully differential and single-ended-to-di ...
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... original signal. A small part of the output signal from the power amplifier is then fed into the subtracter where a time-delayed portion of the original signal, present in the lower path, is subtracted. The result of this process is an error signal that only contains the errors from the amplified si ...
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... The device also includes pop-and-click suppression circuitry. This minimizes voltage glitches at the output during turn-on and turn-off, reducing audible noise on activation and deactivation. The default gain of the SSM2319 is 12 dB, but users can reduce the gain by using a pair of external resistor ...
A.J. Hanson, J.A. Belk, S. Lim, C.R. Sullivan, and D.J. Perreault, Measurements and Performance Factor Comparisons of Magnetic Materials at High Frequency, IEEE Transactions on Power Electronics , (to appear).
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... where f is the frequency of operation under consideration and B̂ is the peak amplitude of ac flux density that results in a specified power loss per unit volume Pv , taken to be the maximum practical allowable power dissipation per unit volume. Typical values of Pv are 200 mW/cm3 (a conservative val ...
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... The RF2051 is a dual monolithic mixer circuit with integrated frequency generation, a fractional-N synthesizer and VCO. The mixers are wideband, covering the frequency range 30MHz to 2500MHz on both input and output. This document also applies to other members of the RF205x series, all being variant ...
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... It is normal that bladder fullness causes an urge to void. However, for some handicapped with spinal cord injury or some patients with urological disease, this sense will disappear, causing urinary tract infections and urinary reflux even ultimately lead to renal failure. As a result, more and more ...
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... Changes to System Description Section .......................................13 Changes to Figure 19 ......................................................................14 Changes to Figure 24 ......................................................................18 ...
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... mode rectifier circuit based on the use of one current conveyor and bipolar transistors operating in class-B, this circuit is a realization that enjoys the high precision rectifier. However, the two grounded resistors are used and the high frequency performance is limited in this scheme. In [8]-[9] ...
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... clamp levels, signals with speeds up to 240 MHz can be applied to the clamp pins. The clamp values can also be set to any value within the output voltage range provided that VH is greater that VL. Due to these clamp characteristics, the AD8036 and AD8037 can be used in nontraditional applications su ...
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... the published results with similar technologies. A new bandwidth enhancement technique, π-type inductor peaking (PIP), is proposed, which gives a bandwidth enhancement factor of 3.31 without disturbing the low-frequency gain. Under a 1.8 V supply voltage, the TIA consumes 60.1 mW with a chip area of ...
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Superheterodyne receiver



In electronics, a superheterodyne receiver (often shortened to superhet) uses frequency mixing to convert a received signal to a fixed intermediate frequency (IF) which can be more conveniently processed than the original radio carrier frequency. It was invented by US engineer Edwin Armstrong in 1918 during World War I. Virtually all modern radio receivers use the superheterodyne principle. At the cost of an extra frequency converter stage, the superheterodyne receiver provides superior selectivity and sensitivity compared with simpler designs.
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