Features and Benefits
- Wide bandwidth:
0.1 GHz to 2.5 GHz min
- High dynamic range:
70 dB to ±3.0 dB
- High accuracy: ±1.0 dB over 65 dB range (@ 1.9 GHz)
- Fast response:
40 ns full-scale typical
- Controller mode with error output
- Scaling stable over supply and temperature
- Wide supply range:
2.7 V to 5.5 V
- Low power:
40 mW at 3 V
- Power-down feature:
60 mW at 3 V
The AD8313 is a complete multistage demodulating logarithmic amplifier that can accurately convert an RF signal at its input to an equivalent decibel-scaled value at its dc output. The AD8313 maintains a high degree of log conformance for signal frequencies from 0.1 GHz to 2.5 GHz. Application is straightforward, requiring only a single supply of 2.7 V to 5.5 V and the addition of a suitable input and supply decoupling. Operating on a 3 V supply, its 13.7 mA consumption (for TA = 25°C) is only 41 mW. A power-down feature is provided; the input is taken high to initiate a low current (20 µA) sleep mode, with a threshold at half the supply voltage
The AD8313 is fabricated on Analog Devices, Inc., advanced 25 GHz silicon bipolar IC process and is available in an 8-lead MSOP package. The operating temperature range is −40°C to +85°C.
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)
AD8313-EVALZ is a fully populated, 4-layer Rogers 4350 and FR4 based evaluation board. The top and bottom signal layers are Rogers 4350 and the internal layers are FR4. For normal operation, it requires a single power supply of 2.7 - 5.5 V, capable of delivering 50 mA. The power supply should be connected to the test loops labeled VPS1, VPS2 and GND. The test loop labeled VNEG, should be connected to ground. The RF input signal is applied to the SMA connector (INHA). VOUT is available from the SMA connector (VOUT). The SMA connectors ENBL and VSET allow the option of applying an external signal at these nodes.
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.
Product Selection Guide (1)
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.