Features and Benefits
- Calibrated rms response
- Excellent temperature stability
- Up to 30 dB input range at 2.5 GHz
- 700 mV rms, 10 dBm, re 50 Ω maximum input
- ±0.25 dB linear response up to 2.5 GHz
- Single-supply operation: 2.7 V to 5.5 V
- Low power: 3.3 mW at 3 V supply
- Rapid power-down to less than 1 µA
The AD8361 is a mean-responding power detector for use in high frequency receiver and transmitter signal chains, up to 2.5 GHz. It is very easy to apply. It requires a single supply only between 2.7 V and 5.5 V, a power supply decoupling capacitor, and an input coupling capacitor in most applications. The output is a linear-responding dc voltage with a conversion gain of 7.5 V/V rms. An external filter capacitor can be added to increase the averaging time constant.
The AD8361 is intended for true power measurement of simple and complex waveforms. The device is particularly useful for measuring high crest-factor (high peak-to-rms ratio) signals, such as CDMA and W-CDMA. The AD8361 has three operating modes to accommodate a variety of analog-to-digital converter requirements:
- Ground reference mode, in which the origin is zero.
- Internal reference mode, which offsets the output 350 mV above ground.
- Supply reference mode, which offsets the output to VS/7.5.
The AD8361 is specified for operation from −40°C to +85°C and is available in 8-lead MSOP and 6-lead SOT-23 packages. It is fabricated on a proprietary high fT silicon bipolar process.
Markets & Technology
Product Lifecycle Production
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.
Evaluation Kits (1)
AD8361ART-EVAL is a fully populated, 4-layer, FR4-based evaluation board. For normal operation, it requires a 2.7 V to 5 V/15 mA power supply. The power supply should be connected to the vector pins labeled VPOS and GND. The RF input signal is applied to the edge-mounted SMA type RF connector (RFIN). The RMS output signal is accessible via the edge-mounted SMA connector (J2).
AD8361-EVALZ is a fully populated, 4-layer, FR4-based evaluation board. For normal operation, it requires a 2.7 V to 5 V/15 mA power supply. The power supply should be connected to the vector pins labeled VPOS and GND. The RF input signal is applied to the edge-mounted SMA type RF connector (RFIN). The RMS output signal is accessible via the edge-mounted SMA connector (VRMS).
Tools & Simulations
ADIsimPLL enables the rapid and reliable evaluation of new high performance PLL products from ADI. It is the most comprehensive PLL Synthesizer design and simulation tool available today. Simulations performed include all key non-linear effects that are significant in affecting PLL performance. ADIsimPLL removes at least one iteration from the design process, thereby speeding the design- to-market.
ADIsimRF is an easy-to-use RF signal chain calculator. Cascaded gain, noise, distortion and power consumption can be calculated, plotted and exported for signal chains with up to 50 stages. ADIsimRF also includes an extensive data base of device models for ADI’s RF and mixed signal components.
Technical Articles (9)
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.
Sample & Buy
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.