LTC5597

RECOMMENDED FOR NEW DESIGNS

100MHz to 70GHz Linear-in-dB RMS Power Detector with 35dB Dynamic Range

Data Sheet (Rev. 0) Product Selection Table
Part Models
5
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Part Details

  • Ultra Wide Matched Input Frequency Range: 100MHz to 70GHz
  • 35dB Linear Dynamic Range (< ±1dB Error)
  • 28.5mV/dB Logarithmic Slope
  • ±2dB Flat Response from 100MHz to 60GHz
  • Accurate RMS Power Measurement of High Crest Factors (Up to 12dB) Modulated Waveforms
  • Low Power Shutdown Mode
  • Low Supply Current: 33mA at 3.3V (Typical)
  • Small 2mm × 2mm Plastic DFN8 Package
  • I-Grade: −40°C to 105°C Rated
  • H-Grade: −40°C to 125°C Rated with Guaranteed Log-Slope and Log-Intercept
  • ESD Rating: 2500V HBM, 1500V CDM
LTC5597
100MHz to 70GHz Linear-in-dB RMS Power Detector with 35dB Dynamic Range
LTC5597 Functional Block Diagram LTC5597-pg LTC5597-pc
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Documentation

Data Sheet 1

User Guide 2

Spec Notice 1

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Tools & Simulations

S-Parameter 1

Evaluation Kits

eval board
schematic 1
schematic 2
schematic 3
DC3129A

LTC5597 Demo Board | Linduino Shield 100 MHz to 70 GHz RMS Power Detector

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Product Details

Demonstration circuit DC3129A-KIT is a Linduino® evaluation kit for RMS Power Detector LTC5597. It is set up for quick evaluation of RMS RF power measurement using the Arduino/Linduino compatible platform and software download available. When connected to PC with USB cable, accurate power level can be monitored using the graphic user interface.

The LTC5597 is a wide dynamic range linear-in-dB RMS RF Power Detector, operational from 100 MHz to 70 GHz. The Linduino (DC2026C) platform provides 10-bit ADC at 4.9 mV/LSB resolution with 5V default reference voltage. Input dynamic range with 1 dB accuracy is up to 35 dB depending on frequency. The detector output slope is normally 6 LSB/dB. The DC3129A-KIT is optimized for wide operational frequency signals up to 70 GHz using the 1.85mm edge mount connector. Input impedance is internally matched to 50Ω. It is suitable for RMS measurements of high crest factor waveforms up to 12 dB peak-to-average. No external coupling capacitor is necessary if DC voltage at RFIN pin is kept below 1.0V. On board 3.3V regulator provides power to the shield by jumper JP1. Contact applications support for more information.

NOTE: DC3128A is the part number for the RF board only. The RF board schematic & PCB design will show this part number. This item is not available separately. It is included as part of DC3129A-KIT.

DC3129A-KIT is the part number for the complete board stack, consisting of a pre-programmed Linduino board + RF board. The complete assembly is tested and ready for use. Refer to the DC3129A-KIT Demo Manual for further instructions.

For questions, please post to EngineerZone or contact your local Analog Devices Field Applications Engineer.

eval board
schematic 4
schematic 5
schematic 6
DC2932A

LTC5597 | 100MHz to 70GHz RMS Power Detector 

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Product Details

Demonstration circuit 2932A hosts a high accuracy RMS power detector featuring the LTC5597 IC. This ultrawide bandwidth device has a RMS response that measures RF and microwave signals from 100MHz to 70GHz. The input signal converts to a DC voltage that is logarithmically proportional to the input signal level. Moreover, the LTC5597 offers unprecedented sensitivity, capable of detecting signals of –37dBm typical. Additionally, it has outstanding input dynamic range up to 35dB, achieving 1dB accuracy, depending on frequency. The detector output voltage slope is normally 29mV/dB. The PCB layout employs the recommended microstrip transmission line structure, as well as the recommended endpoint transitions. Input impedance to LTC5597 is internally matched to 50Ω. It is suitable for RMS measurements of high crest factor waveforms up to 12dB peak/average ratio. No external coupling capacitor is necessary if DC voltage at RFIN pin is kept below 1V. Contact applications support for more information.

DC3129A
LTC5597 Demo Board | Linduino Shield 100 MHz to 70 GHz RMS Power Detector
DC3129 Evaluation Board DC3129A Evaluation Board Angle DC3129A IC and Connector
DC2932A
LTC5597 | 100MHz to 70GHz RMS Power Detector 
DC2932A DC2932A DC2932A

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