Product category: Analogue and Mixed Signal ICs
News Release from: Maxim Integrated Products | Subject: MAX2015
Edited by the Electronicstalk Editorial Team on 04 November 2003
Steady as you go for stable RF log amp
The MAX2015 is billed as the industry's first RF log amplifier to fully cover the 0.1 to 2.5GHz band with exceptional dynamic range and +/-1dB precision over temperature.
The MAX2015 is billed as the industry's first RF log amplifier to fully cover the 0.1 to 2.5GHz band with exceptional dynamic range and +/-1dB precision over temperature The device can be configured as a simple RF power detector or as a complete closed-loop controller
This article was originally published on Electronicstalk on 27 Aug 2002 at 8.00am (UK)
Related stories
Speedy DAC claims dynamic superiority for comms
The MAX5195 is a 14bit 260Msample/s DAC claimed to provide the world's best dynamic performance in spurious-free dynamic range, intermodulation distortion and signal to noise ratio.
Low-power serial ADC runs up to 200Ksample/s
New from Maxim Integrated Products, the MAX1162 serial-interface 16bit A/D convertor connects directly to SPI, QSPI and Microwire devices without additional interface logic.
The outstanding combination of precision and dynamic range makes this log amplifier particularly useful in a variety of basestation and other wireless applications including automatic gain control (AGC), transmitter power measurements, and received-signal-strength indication (RSSI) circuitry.
While maintaining +/-3dB log conformance at 25C, the MAX2015 provides dynamic ranges of 75, 65 and 45dB for 900, 1900 and 2500MHz, respectively.
The key to the MAX2015's success is, however, its superior precision over temperature and supply.
At 900MHz, this device delivers 55dB of dynamic range with +/-1dB of precision over the -40 to +85C temperature range.
Measurements at 1900 and 2500MHz are equally impressive with dynamic ranges of 46 and 38dB, respectively, under the same precision and temperature constraints.
Offering +/-0.25dB precision over Vcc +/-15%, it is also virtually unaffected by voltage-supply variations.
These precision levels significantly enhance the accuracy of an RF power measurement.
In most instances, the +/-1dB precision over temperature will provide ample margin in detector accuracy.
However, other applications may seek even greater levels of accuracy through use of temperature-based lookup tables.
In these cases, the MAX2015 delivers unparalleled performance compared with other competitive offerings due to its tight part-to-part variances and consistent error curves over -40 to +85C.
The MAX2015 is available in a space-saving, 8-pin microMAX package, making it ideal as a drop-in replacement for the AD8313 log amp.
Prices start at $6.35 (1000-up, FOB USA).
• Maxim Integrated Products: contact details and other news
• Email this article to a colleague
• Register for the free Electronicstalk email newsletter
• Electronicstalk Home Page
