Datasheet LTC5582 (Analog Devices)

LTC5582 40MHz to 10GHz RMS Power Detector with 57dB Dynamic Range
FEATURES DESCRIPTION
n
Frequency Range: 40MHz to 10GHz
The LTC®5582 is a 40MHz to 10GHz RMS responding n
Linear Dynamic Range: Up to 57dB
power detector. It is capable of accurate power measure- n
Accurate RMS Power Measurement of High Crest
ment of an AC signal with wide dynamic range, from
Factor Modulated Waveforms
–60dBm to 2dBm depending on frequency. The power n
Exceptional Accuracy Over Temperature: ±0.5dB (Typ)
of the AC signal in an equivalent decibel-scaled value n
Low Linearity Error within Dynamic Range
is precisely converted into DC voltage on a linear scale, n
Single-Ended or Differential RF Inputs
independent of the crest factor of the input signal wave- n
Fast Response Time: 90ns Rise Time
forms. The LTC5582 is suitable for precision RF power n Low Supply Current: 41.6mA at 3.3V (Typ) measurement and level control for a wide variety of RF n Small 3mm × 3mm DFN10 standards, including LTE, WiMAX, W-CDMA, CDMA2000, TD-SCDMA, and EDGE. The DC output is buffered with a low output impedance amplifier capable of driving a high
APPLICATIONS
capacitance load. Consult factory for more information. n RMS Power Measurement The part is packaged in a 10-lead 3mm × 3mm DFN. It is n PA Power Control pin-to-pin compatible with the LT5570. n Receive and Transmit Gain Control All registered trademarks and trademarks are the property of their respective owners. Protected n by U.S. patents, including 7262661, 7317357, 7622981. LTE, WiMAX, W-CDMA, CDMA2K, TD-SCDMA, EDGE Basestations n Point-to-Point Microwave Links n RF Instrumentation
TYPICAL APPLICATION Linearity Error vs RF Input Power 2140MHz Modulated Waveforms 40MHz to 6GHz RMS Power Detector
3 TC = 25°C 3.3V 1µF 1nF 100nF 2 VCC FLTR 1 IN+ EN ENABLE LTC5582 270pF 68Ω DEC RT1 Y ERROR (dB) 0 IN– RT2 –1 1nF GND OUT V LINEARIT OUT 5582 TA01a –2 4-CARRIER WCDMA CW 3-CARRIER CDMA2K –3–65 –55 –45 –35 –25 –15 –5 5 RF INPUT POWER (dBm) 5582 TAO1b Rev A Document Feedback For more information www.analog.com 1 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Test Circuits Applications Information Package Description Revision History Typical Application Related Parts Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Typical Performance Characteristics Pin Functions Test Circuits Applications Information Package Description Revision History Typical Application Related Parts