Antenna assemblies for magnetic resonance signals comprise a non-resonant loop antenna (102) and a high impedance differential amplifier (124). The amplifier (124) can include first and second high electron mobility transistors (104 and 106) that have gates coupled to an ant...
The input resistance impedance of a differential mode amplifier is more than 100k. The input resistance of the AD8206. for example, is 200k. The gain error is roughly 0.1 percent if the external current filter resistance Rf is 200. If the matching error between the two low-pass filter resis...
We present a CMOS differential neural amplifier with high input impedance, which topology is inspired by the instrumentation amplifier. The miniaturization of the MEAs goes with an increase of the electrodes impedance and necessitates high input impedance neural amplifiers; otherwise it results in a si...
An active load which uses positive feedback to achieve an impedance transformation is introduced. The use of this circuit as an active load for a differential amplifier is explored, and it is illustrated with a case study that the output impedance and consequently the voltage gain are improved ...
A differential cross-coupled regulated cascode(RGC)transimpedance amplifier(TIA)is proposed. The theory of multi-stage common-source (CS) configuration as an auxiliary amplifier to enhance the bandwidth and output impedance of RGC topology is analyzed. Additionally, negative Miller capacitance and shunt...
The ENABLE pin floats to logic high. If this pin is not used it can be left floating. The amplifier output stage goes into a high impedance state when the amplifier is disabled. The feedback and gain set resistors will then set the impedance of the circuit. For this reason input to ...
The ENABLE pin floats to logic high. If this pin is not used it can be left floating. The amplifier output stage goes into a high impedance state when the amplifier is disabled. The feedback and gain set resistors will then set the impedance of the circuit. For this reason input to ...
The neighboring drain electrodes and the neighboring gate electrodes are connected through high-impedance transmission lines, respectively. The end opposite to the output portion of the circuit connecting the drain electrodes and the end opposite to the input portion of the circuit connecting the gate ...
Circuits and methods are provided for transmitting a pseudo-differential output signal with relatively high immunity to noise and jitter. The output driver of the invention receives two differential input signals and outputs a single output signal with low voltage transistors and programmable impedance an...
TL026C DIFFERENTIAL HIGH-FREQUENCY AMPLIFIER WITH AGC SLFS007A – JUNE 1985 – REVISED JULY 1990 D Low Output Common-Mode Sensitivity to AGC Voltages D Input and Output Impedances Independent of AGC Voltage D Peak Gain . . . 38 dB Typ D Wide AGC Range . . . 50 dB Typ D 3-dB ...