HMC681LP5E

Series:	--
Packaging:	Bulk
Part Status:	Obsolete
Frequency:	0Hz ~ 1GHz
P1dB:	20dBm
Gain:	45dB
Noise Figure:	2.8dB
RF Type:	General Purpose
Voltage - Supply:	5V
Current - Supply:	176mA
Test Frequency:	--
Package / Case:	32-VQFN Exposed Pad
Supplier Device Package:	32-QFN (5x5)
Base Part Number:	HMC681

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HMC681LP5E RF Amplifiers

The HMC681LP5E is a high performance, integrated, single pole, double throw (SPDT) analog switch which is designed for use in Radio Frequency (RF) amplification applications. It is a low-voltage, low-noise, and wideband RF switch which provides the ability to switch between two RF inputs while maintaining good isolation between them. The HMC681LP5E is designed for use in RF receivers, transmitters, test and measurement modules, and other signal processing applications.

Overview

The HMC681LP5E is a wideband RF switch designed for use in RF applications requiring high linearity and dynamic range. It is designed to provide single pole, double throw RF switching which provides excellent isolation between both RF inputs while preserving signal fidelity. The device operates from 1.2 Volts to 5.5 Volts DC, making it ideal for use in portable and mobile devices. It is especially suited for applications requiring low noise and low insertion loss such as in low noise amplifiers (LNAs) and high dynamic range amplifiers (HDAs). Additionally, it is designed for operation over a temperature range of -40°C to 85°C.

Design Characteristics

The HMC681LP5E is designed to operate over a wide RF frequency range of 20 MHz to 6000 MHz. It features an excellent isolation of >20 dB between two different RF ports, and provides high linearity and dynamic range. The insertion loss is typically 1 dB at a frequency range of 0.02GHz to 6 GHz with a compression of 0.5 dB. Additionally, the HMC681LP5E operates at very low power of 65mW and features a fast switching speed of 3 nSec.The device also features a 2:1 input multiplexer which allows two single ended RF input signals to be switched in one common output port. The RF input ports have ESD protection of up to 2kV and are designed for good reverse isolation of >20dB.

Working Principle

The HMC681LP5E is an SPST RF switch, meaning it has one output port, and two RF input ports which can be enabled or disabled. The Single Pole Double Throw (SPDT) switch is a two-state switching device which is activated when a control voltage is applied to the input control port. When the control voltage is high, the switch is enabled, and the signal applied to the input port B will be transferred to the output port. When the control voltage is low, the switch will be disabled, and the signal applied to the input port A will be transferred to the output port. The HMC681LP5E is a wideband RF switch designed for use in RF applications which require high linearity and dynamic range. It is used to switch between two different RF inputs with excellent isolation between both RF inputs while preserving signal fidelity. The device also features low insertion loss, low power consumption, and fast switching speed, making it suitable for a variety of RF applications.

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