Analogue, Mixed Signal, LSI


Low noise amplifiers

2 June 2004 Analogue, Mixed Signal, LSI

The RF2371 and the RF2375 are two new silicon-based low noise amplifiers from RF Microdevices, designed for general-purpose amplification. With a range of 700-2000 MHz they offer high performance, low power consumption and compact design.

At 1950 MHz, the first device delivers 12 dB gain and a 1,8 dB noise figure. The component's attenuation is controlled when in power-down mode, providing a known gain step of 17 dB. It also features a highly accurate PTAT (proportional to absolute temperature) biasing scheme using bandgap cells.

The RF2375 features an operating range of 700-2000 MHz, and is an ideal LNA for DCS 1800/1900 handsets. At 1950 MHz, the device offers 18 dB gain and a 2,5 dB noise figure. To maximise the receiver design's dynamic range, the input IP3 (-5 dBm at 5,3 mA) can be set with an external resistor. This component also features attenuation control when in power-down mode, providing a known gain step of 25 dB. PTAT bias currents are used to bias the LNA.

The amplifier devices operate from a single 2,7-3,6 V power supply and come in small SOT-23-8 surface mount package. Applications for both LNAs - in addition to cellular - include general-purpose amplification, use as a driver stage for power amps, IF or RF buffer amplification and oscillator loop amplification.

For more information contact Clinton Hennessey, RF Design, 021 763 4700, [email protected]



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

High-temperature closed-loop MEMS?accelerometer
RS South Africa Analogue, Mixed Signal, LSI
This sensor from TDK is a high-temperature MEMS accelerometer with ±14 g input range and a digital interface for measurement while drilling applications.

Read more...
Nordic Semiconductor acquires Memfault
RF Design News
With this acquisition, Nordic has launched its first complete chip-to-cloud platform for lifecycle management of connected products.

Read more...
Dual accelerometers on the same die
Altron Arrow Analogue, Mixed Signal, LSI
The LSM6DSV320X is the first mainstream inertial sensor to house a gyroscope alongside two accelerometers, one capable of sensing up to ±16 g and one sensing up to a staggering ±320 g.

Read more...
Dual-range IMU with edge processing
EBV Electrolink Analogue, Mixed Signal, LSI
ST’s innovative LSM6DSV80X combines two accelerometer structures for 16 g and 80 g full-scale sensing, a gyroscope up 4000 dps, and embedded intelligence in a single component.

Read more...
Energy harvesting and Matter for smarter homes
RF Design Power Electronics / Power Management
Qorvo’s collaboration with e-peas on the Matter Enabled Light Switch marks another significant step in advancing Matter adoption across the IoT industry.

Read more...
Dual-band GNSS antenna
RF Design Telecoms, Datacoms, Wireless, IoT
The Taoglas Accura GVLB258.A, is a passive, dual-band GNSS L1/L5, high-performance antenna for high precision GNSS accuracy and fast positioning.

Read more...
High-reliability isolation amplifiers
EBV Electrolink Analogue, Mixed Signal, LSI
The VIA series of isolation amplifiers from Vishay are designed to deliver exceptional thermal stability and precise measurement capabilities.

Read more...
Mibbo QT2C Series signal isolators
Conical Technologies Analogue, Mixed Signal, LSI
The Mibbo QT2C Series isolators support a rich combination of input and output signals, working with either current loops or voltage levels.

Read more...
IMU with dual-sensing capability
EBV Electrolink Analogue, Mixed Signal, LSI
ST’s 6-axis inertial measurement unit integrates a dual accelerometer up to 320g and embedded AI for activity tracking and high-impact sensing.

Read more...
Plural data converter series
Analogue, Mixed Signal, LSI
Silanna Semiconductor has announced the launch of Plural, a new generation of data converters for customers eager to find a more available, affordable, high-performance alternative to existing brands.

Read more...









While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.




© Technews Publishing (Pty) Ltd | All Rights Reserved