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AD606JR: 对数放大器和检测器PDIP-16封装

The AD606 is a complete, monolithic logarithmic amplifier using a 9-stage "successive-detection" technique. It provides both logarithmic and limited outputs. The logarithmic output is from a three-pole post-demodulation low-pass filter and provides a loadable output voltage of +0.1 V dc to +4 V dc. The logarithmic scaling is such that the output is +0.5 V for a sinusoidal input of -75 dBm and +3.5 V at an input of +5 dBm; over this range the logarithmic linearity is typically within ±0.4 dB. All scaling parameters are proportional to the supply voltage.

The AD606 can operate above and below these limits, with reduced linearity, to provide as much as 90 dB of conversion range. A second low-pass filter automatically nulls the input offset of the first stage down to the submicrovolt level. Adding external capacitors to both filters allows operation at input frequencies as low as a few hertz.

The AD606's limiter output provides a hard-limited signal output as a differential current of ±1.2 mA from open-collector outputs. In a typical application, both of these outputs are loaded by 200 Ω resistors to provide a voltage gain of more than 90 dB from the input. Transition times are 1.5 ns, and the phase is stable to within ±3° at 10.7 MHz for signals from -75 dBm to +5 dBm.

The logarithmic amplifier operates from a single +5 V supply and typically consumes 65 mW. It is enabled by a CMOS logic level voltage input, with a response time of <5 us. When disabled, the standby power is reduced to <1 mW within 5 us.

The AD606J is specified for the commercial temperature range of 0°C to +70°C and is available in 16-pin plastic DIPs or SOICs. Consult the factory for other packages and temperature ranges.

An evaluation board is available for this product and may be ordered using the following product number: AD606-EB

AD606JR 特点
AD606JR 功能框图

Functional Block Diagram for AD606

AD606JR 技术指标
Dynamic Range (dB) 80dB Limiter Output Yes
Phase Accuracy (deg) ±3Deg AC Linearity (± dB) 1.5dB
Response Time (ns typ) 400ns Power Consumption (mW) 65mW
Voltage Supply (V) 4.5 to 5.5 Package 16-Lead DIP,16-Lead SOIC
Supply Current 13mA
AD606 订购指南
产品型号 产品状态 封装 引脚 温度范围
AD606JN 量产 16 ld PDIP 16 商业
AD606JNZ 量产 16 ld PDIP 16 商业
AD606JR 量产 16 ld PDIP 16 商业
AD606JR-REEL7 量产 16 ld PDIP 16 商业
AD606JRZ 量产 16 ld PDIP 16 商业
AD606JRZ-REEL7 量产 16 ld PDIP 16 商业
AD606JR 应用技术支持与电子电路设计开发资源下载
  1. 对数放大器和检测器系列AD606 数据手册DataSheet 下载 . PDF
  2. ADI 模拟器件公司比较器产品选型指南 . PDF
  3. Analog Devices, Inc. 美国模拟器件公司产品订购手册 .PDF