High dynamic range 10 GHz RMS detector offers accurate RF power measurement
June 16, 2010 // Paul Buckley
Linear Technology has introduced a high dynamic range 10 GHz RMS detector that claims to set a new standard in measurement accuracy of RF signals.
The LTC5582 offers ±0.2 dB linearity over a 43dB dynamic range at 2.14 GHz, regardless of the high crest-factor modulations used in 3G and 4G broadband wireless networks, including LTE, WiMAX, TD-SCDMA, W-CDMA and CDMA2000. In addition, the LTC5582 can accurately measure signal levels as low as -56 dBm to 1 dBm to ±1 dB error, providing 57 dB dynamic range from 450 MHz to 2.7 GHz. The device is capable of operating at higher frequencies, providing 46 dB of useful dynamic range at 6 GHz, and 38dB at 10 GHz. Moreover, the device operates efficiently on a single 3.3 V supply. The device's RF input is designed to operate single-ended, requiring no external balun transformer, thus reducing the solution size and cost.
From -40 to 85 degrees C, the LTC5582 can deliver 48 dB of dynamic range with a linearity accuracy of ±1 dB. This enables use of the LTC5582 in rugged environments such as RRUs (Remote Radio Units) or ODU (Outdoor Units) deployed on cellular towers with minimal calibration adjustments. Moreover, the device has on-chip provisions for first- and second-order temperature compensation which can be easily calibrated for improved temperature performance.
The LTC5582 has a log-linear response which precisely converts the RF signal levels in dB scale into a linearly proportional DC voltage. Operating in the wireless network frequency range from 450 MHz to 2.7 GHz, the detector response maintains the industry's most constant slope as the signal frequency changes. This allows a single detector to operate in multiband environments with minimal calibration adjustments. Moreover, the LTC5582 has fast settling characteristics, acquiring a rising signal accurately in 500 ns and a falling signal in 4.5 µs. Its fast response supports a wide range of signal envelope tracking applications.
The LTC5582's specifications apply to single-ended RF input, supporting single-ended applications without a need of an external balun transformer. So the RF input provides easy interface, and is cost-effective to implement in a high performance RF measurement circuit.
The LTC5582 is powered from a single 3.3 V supply with an operating current of 42 mA, minimizing power consumption. The device has an Enable pin, allowing the chip to power down. When in shutdown mode, the device draws trickle current of less than 10 µA. The LTC5582 comes in a 3 mm x 3 mm 10-pin DFN package. Typical application circuits using the device require fewer external components, providing a compact solution footprint.
Availability and Pricing
The LTC5582 is available from stock. Pricing starts at 6.25 US Dollars in 1,000 piece quantities.
Automotive industry sees innovation in products, not business models
December 10, 2013
Innovation strategies in the automotive industry are aiming to technology and better customer orientation, states management ...
Big moves in chip vendor top 20 ranking
Extendible processors go head to head backed by EDA giants
Koch Industries acquires Molex for USD7.2 billion
EnOcean joins the OSGi Alliance to define universal open interface for energy harvesting wireless
GaN-on-silicon LEDs to grow market share to 40 percent by 2020
December 09, 2013
The penetration of gallium nitride-on-silicon (GaN-on-Si) wafers into the light-emitting diode (LED) market is forecast to ...
Pebble CEO turns back clock
Tyndall National Institute captures snapshots of moving atoms under bursts of light
Measurement technique allows survey of 3D micro objects
- 3mm × 3mm QFN IC Directly Monitors 0V to 80V Supplies
- UltraCMOS® Semiconductor Technology Platforms: A Rapid Advancement of Process & Manufacturing
- Adaptive Cell Converter Topology Enables Constant Efficiency in PFC Applications
- Isolated 4-Channel, Thermocouple/RTD Temperature Measurement System with 0.5°C Accuracy
InterviewPerformance monitoring solution helps provide intelligent control of high power systems
A performance monitoring solution designed to enable companies to monitor high power IGBT module systems in locomotive, wind turbine, High Voltage DC and industrial drive applications was unveiled this ...
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
Internet of Things (IoT) manufacturer Ciseco has launched the Raspberry Pi ‘Wireless Inventors Kit’ (RasWIK), featuring 88 pieces to provide everything a Pi owner needs to follow a series of step-by-step projects or to create their own wireless devices, without the need for configuration or even writing code.
RasWIK has been designed to be highly accessible, demystifying the dark art of wireless and enabling anyone with basic computing skills to begin building wireless devices with a Raspberry Pi. You can create anything from a simple traffic light, to a battery monitor, or even a temperature gauge that sends data to the Xively IoT cloud so billions can access the data.This month, Ciseco is giving away twelve Raspberry Pi Wireless Inventors kits, worth £49.99 each for EETimes Europe's readers to win.
And the winners are...
In our previous reader offer, Farsens was giving away five kits for EEtimes Europe readers to evaluate its FenixVortex, Kineo and X1 wireless, battery free sensor tags.
Lucky winners include Mr A. Neil from the UK, Mr. E. Delvaux from Belgium, Mr Lengal from the Czech Republic, Mr H. Bijlsma from the Netherlands, and Mr G. Pfaff from Germany. All should be receiving their packages soon. Lets wish them some interesting findings with their projects.
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.