We report the experimental in situ characterization of 30-40 MHz and 868 MHz wireless transmission schemes for ingestible capsules, in porcine carcasses. This includes a detailed study of the performance of a magnetically coupled near-field very high-frequency (VHF) transmission scheme that requires only one eighth of the volume and one quarter of the power consumption of existing 868-MHz solut...

Anyone who have designed a capacitively tuned VFO/VCO with the wide tuning range (>1.5-2x) has noticed that the oscillation threshold changes substantially with the tuning frequency. The usual solution to the problem is a combination of: 1. the AGC circuit, most frequently via the amplifier bias that changes the amplifier conduction angle; 2. shunting the LC circuit with a damping resistor or b...

The balanced amplifier is used in applications requiring a better input match than is possible with a single-ended amplifier. While the impedance matching property of the balanced amplifier is well known, its noise behavior appears not to be widely understood. It is shown that the outgoing noise waves at the input and output of a balanced amplifier are uncorrelated even though they originate in...

Sense amplifiers plays an important role in memories like Dynamic Random Access (DRAM) and Static Random Access (SRAM) for read and write operations. A sense amplifier compares the bit line voltage and its complement amplifies it to rail to rail output voltages. In this project, we mainly concentrated on the write operation. Sense amplifier is one of the peripheral circuits in memories that are...

A design strategy for minimizing a feedback amplifier’s step-response settling time is introduced. Central to this approach is the clear identification of the independent design parameters characterizing the amplifier and the introduction of a figure of merit for assessing the settling performance of an amplifier that is independent of power, supply voltage and capacitive loading. With this app...

The design of a CMOS operational mirrored amplifier (OMA) suitable for high frequency applications is proposed. The CMOS operational mirrored amplifier is developed using class AB operational amplifier and two current mirrors. To obtain a wide bandwidth and high stability, HF feedforward techniques have been used. These techniques made the proposed circuit suitable for continuous – time analog ...

Performance of sense amplifier has considerable impact on the speed of caches used in microprocessors. The small difference in voltage level of bit lines of memory cell is amplified by sense amplifier. voltage mode sense amplifier reduces the power dissipation during read and increases the speed also. This paper describes voltage mode sense amplifier and current mode sense amplifier and compare...