产品概述
0.1 GHz至2.5 GHz的70分贝对数检测器/控制器 0.1 GHz to 2.5 GHz 70 dB Logarithmic Detector/Controller
Product Details
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.
### 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
