RF Detector / Controller, 100 MHz TO 2.7 GHz, 45 dB
The AD8314 is a complete low cost subsystem for the measurement and control of RF signals in the frequency range of 100 MHz to 2.7 GHz, with a typical dynamic range of 45 dB, 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.
The AD8314 is available in 8-lead MSOP and 8-lead LFCSP packages and consumes 4.5 mA from a 2.7 V to 5.5 V supply. When powered down, the typical sleep current is 20 µA.
An evaluation board is available for this product and may be ordered using the following product number: AD8314-EVAL. Schematic and layout for this evaluation board is contained in the product datasheet.
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At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
AD8314-EVAL is a fully populated, 4-layer, FR4-based evaluation board. For normal operation, it requires a 2.7V to 5V/10 mA power supply. The power supply should be connected to the vector pins leads labeled VPOS and GND. The RF input signal is applied to the edge-mounted SMA type RF connector (INPUT). The setpoint input signal is applied to the edge-mounted SMA type connector (VSET). The detector output signals are accessible via the edge-mounted SMA connectors (V_UP, V_DN). The circuit board can accommodate configuration in measurement mode and controller mode depending on the status of jumper (LK1).
Detecting Fast RF Bursts Using Log Amps
(Analog Dialogue, Vol. 36, No. 5, September-October, 2002)
Ask The Applications Engineer - 28 Logarithmic Amplifiers-Explained
(Analog Dialogue, Vol. 33, No. 3, March, 1999)
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
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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.