ADA-4743-TR1

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Frequency:	0Hz ~ 2.5GHz
P1dB:	17.7dBm
Gain:	16.5dB
Noise Figure:	4.2dB
RF Type:	Cellular, PCS, WLL, WLAN
Voltage - Supply:	3.3 V ~ 3.8 V
Current - Supply:	60mA
Test Frequency:	900MHz
Package / Case:	SC-82A, SOT-343
Supplier Device Package:	SOT-343, SC70 4-Lead

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ADA-4743-TR1 RF Amplifiers

An RF amplifier is a type of electrical amplifier that is specifically designed to amplify signals in the radio frequency (RF) range from a few kilohertz up to several hundreds of megahertz. One example of an RF amplifier is the ADA-4743-TR1. This part is designed for use in high-power RF amplifiers and transmitters in the VHF and UHF frequency bands. The ADA-4743-TR1 operates from a single-ended 6 to 8V power supply and provides up to 47dB gain. The ADA-4743-TR1 is a 4-stage, high-power RF amplifier with a unique single-ended topology. The device has a typical input impedance of 200ohms, which is well matched for most voltage-controlled oscillators (VCO\'s). The part also features integrated protection circuitry to protect against high-voltage surges and excessive current draw. The ADA-4743-TR1 can operate at frequencies up to 470 MHz, making it ideal for VHF and UHF amplifier and transmitter applications. The ADA-4743-TR1 features high-efficiency, high-power performance that makes it ideal for demanding applications. Its low susceptibility to interference, high linearity, and low-noise operation make it a great choice for high-performance systems. Its wide bandwidth ensures that it can handle a variety of signals without degrading performance. The ADA-4743-TR1 operates through a four-stage amplification process. First, the part amplifies the input signal from a few millivolts to several volts. Then, the signal is amplified further using Class A and Class B transistors. Finally, the signal is amplified further using the part’s high-frequency output stage. The part is also highly efficient, delivering up to 86.5% efficiency. This efficiency translates into increased power, improved signal to noise ratio, and reduced power dissipation. The part is also highly reliable. Its integrated protection circuitry significantly reduces the risk of damage due to over-voltages and high current draws. Overall, the ADA-4743-TR1 is a reliable, high-performance RF amplifier suitable for a wide range of applications. Its flexible design, high-efficiency, and integrated protection circuitry make it an ideal choice for demanding VHF and UHF amplifier and transmitter applications.

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