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This paper addresses the high-volume production test problem for millimeter-wave (mm-Wave) circuits. Bit error rate testing is the only feasible solution nowadays for mm-Wave transceivers, but is extremely costly and challenging to be implemented in high-volume production test floors. The lack of alternative solutions is due to the difficulty in extracting off-chip and processing mm-Wave frequencies...
This paper concerns the design and the implementation of a transimpedance amplifier (TIA) dedicated to detector of Near Infrared spectroscopy (NIRS). To reduce the effect of the input capacitance on the bandwidth, a bias circuit with low input impedance is connected to input stage. A single ended common source common gate input stage based on a cascode structure is used to get a higher gain bandwidth...
An operational amplifier is described which uses separate loops to control the output voltage and the error voltage between its inputs. To a large extent this architecture combines the high-speed characteristics of “current feedback” amplifiers with the low input referred errors of precision architectures. The technique has been applied to produce an amplifier with precision characteristics comparable...
A soft-switching push-pull converter is researched. By insetting LC resonant elements in secondary, all power semiconductors can achieve soft-switching. The special n-period resonance mode in this converter is presented and its principle is investigated in detail. The expressions of various parameters, output voltage uout, resonance capacitor voltage uc and load resistor R, are derived in the n-period...
A novel single Miller frequency compensation topology utilizing a current mirror as an inverting current buffer (SMCICB) for multi-stage amplifiers is proposed. An effective method for accurate placement of the Left-Half-Plane (LHP) zero, introduced by the current buffer is detailed. The SMCICB network effectively cancels the pole at output node, resulting in a single-pole system. This topology does...
Four novel compact differential pair (DP) topologies with enhanced transconductance gain are introduced: direct positive feedback DP, quasi floating gate DP, floating gate DP and tunable quasi floating gate DP. All of them use positive feedback to achieve gm enhancement and have the same supply requirements as the conventional differential pair. Results for 0.13 μm CMOS designs supplied at 1.0 V show...
A multipath reversed nested Miller compensation (MRNMC) scheme with voltage buffer (MRNMCVB) is presented in this paper. By using an efficient voltage buffer, a low-voltage, low-power, three-stage RNMC amplifier topology suitable for large capacitive load applications is constructed with a noninverting intermediate stage. Moreover, the internal feedback loop introduced by the buffer prevents the reduction...
A high intercept points, cost-effective, and power-efficient switching FET double balanced mixer (DBM) is reported. The Switching FET DBM demonstrated in this work offers input intercept points (IIP3) and conversion loss typically 44 dBm and 8.5 dB respectively with 15 dBm LO power for the frequency band (RF: 900-2150 MHz, LO: 850-1950 MHz, IF: 50-200 MHz). The measured interport isolation is typically...
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