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AD8312:  50 MHZ TO 3.5 GHZ, 45 DB RF LOG DETECTOR

The AD8312 is a complete low cost subsystem for the measurement of RF signals in the frequency range of 50 MHz to 3.5 GHz. It has a typical dynamic range of 45 dB and is intended for use in a wide variety of cellular handsets and other wireless devices. It provides a wider dynamic range and better accuracy than possible using discrete diode detectors. In particular, its temperature stability ...More

AD8312:  50 MHZ TO 3.5 GHZ, 45 DB RF LOG DETECTOR

Product Description

The AD8312 is a complete low cost subsystem for the measurement of RF signals in the frequency range of 50 MHz to 3.5 GHz. It has a typical dynamic range of 45 dB and is intended for use in a wide variety of cellular handsets and other wireless devices. It provides a wider dynamic range and better accuracy than possible using discrete diode detectors. In particular, its temperature stability is excellent over the full operating range of -40°C to +85°C.

Its high sensitivity allows measurement at low power levels, thus reducing the amount of power that needs to be coupled to the detector. It is essentially a voltage-responding device, with a typical signal range of 1.25 mV to 224 mV rms or -45 dBm to 0 dBm re 50 Ω.

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  • Complete RF Detector Function
  • Typical Range: -45 dBm to 0 dBm re 50 Ω
  • Frequency Response from 50 MHz to 3.5 GHz
  • Temperature-Stable Linear-in-dB
    Response Accurate to 3.5 GHz
  • Rapid Response: 85/120 ns (rise/fall)
  • Low Power: 12 mW at 2.7 V
  • Temperature range of -40°C to +85°C
  • Available in a 6-ball wafer-level chip scale package, 1.0 mm x 1.5 mm
  • RF Frequency (MHz): 50 to 3500
  • Dynamic Range (dB): 45dB
  • Temp Stability (dB): ±0.5dB
  • Response Time (ns typ): 70ns
  • Voltage Supply (V): 2.7 to 5.5
  • Supply Current : 4.2mA
  • Power Consumption (mW): 12mW
  • Package: WLCSP

Functional Block Diagram for AD8312

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Pin Count is the number of pins, balls, or pads on the device. Pin-out diagrams & pin function descriptions may be found in the datasheet.

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This is the acceptable operating range of the device. The various ranges specified are as follows:
  • Commercial: 0 to +70 degrees Celsius
  • Military : -55 to +125 degrees Celsius
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  • Automotive: -40 to +125 degrees Celsius
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*The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
**Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.