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Item: 155904830430
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AD8307 is a multistage logarithmic amplifier with a dynamic range of 92 dB (-75 dBm + 17 edBm) and a frequency of less than 500 MHz. Low power consumption, 3 V power consumption is only 225 mW. It can be widely used in high frequency communication and instrumentation systems which need accurate measurement of signal power. Module parameters: Module model: AD8307 Module type: RF logarithmic detector Module supply voltage: DC5V Module supply current: 9mA Input signal form: single-ended Input voltage range: -75dBm-+ 17dBm Input frequency range: 20Hz-500MHz Input impedance: 50 ohms Output voltage range: 0.2V-2.5V; subject to actual measurement, there are differences between different modules Input signal characteristics: input coupling; can be continuous sine wave or pulse. The circuit needs to be modified for pulse measurement. The module defaults to continuous mean detection. Output current: 2mA (max); the output is a voltage signal, generally without current. Module dynamic range: better than 90dB Module protection: none; no reverse connection protection, unlimited current protection Module shield: no shield cover Module heating factors: excessive power supply voltage damages the chip or the module is damaged Module working temperature: -40 ℃-+ 85 ℃; industrial grade Module features: highly stable regulation at different temperatures, complete multistage logarithmic amplifier, fully differential DC coupled signal path Applications: Transmitter power measurement, receiver strength measurement, transmitter antenna power measurement, signal level to decibel conversion, etc. Module interface type: SMA signal input and output, 3.81-2PIN power base AD8307 is the first logarithmic amplifier. It is a 500MHz complete single-chip demodulation logarithmic amplifier that uses progressive compression (continuous detection) technology. It can provide 92dB (± 3dB rule consistency) and 88dB at frequencies up to 100MHz. ± 1dB tight error limit) dynamic range. The CMOS-compatible fast execution control pin can disable the standby current of the AD8307 to 150μA. The dynamic range extends from approximately -75 dBm (where dBm refers to a 50Ω source, ie the amplitude of the sine wave is approximately 50. ± 56μV) to + 17dBm (sinusoidal amplitude ± 2.2V). A simple input matching network can reduce this range to -88dBm to + 3dBm. In the central part of this range, the logarithmic linearity is usually between ± 0.3dB and 100MHz, with only a slight decrease at 500MHz. There is no minimum frequency limit for AD8307, and the minimum audio frequency can reach 20Hz or lower. Can be used for transmitter power measurement, receiver strength measurement, transmitter antenna power measurement, signal level to decibel conversion, etc. Features: *Complete multistage logarithmic amplifier *92 dB dynamic range: – 75 dBm to + 17 dBm, *Using matching network can achieve -90dBm *Single supply voltage: minimum 2.7, supply current: 7.5mA (typical value) *Working frequency: DC to 500MHz, linearity: ±1dB *Slope: 25mV/dB, cut-off: -84dBm *High stability in the whole temperature range *Complete Differential DC Coupled Signal Path *Power-on time: 100ns, standby current: 150μA Details: Current of150uA.AD8307 is the first logarithmic amplifier. It uses 8-pin SIC_N sealing technology. It is a 500MHz single-chip demodulation logarithmic amplifier with progressive compression (continuous detection) technology. It can provide 92dB (,+3dB rule consistency) 88dB (+1dB tight error limit) dynamic range when the frequency is up to 100MHz. AD8307 is extremely stable and easy to use, basically without external components. It operates at 2.7V to 5.5V single supply voltage (7.5mA). CMOS-compatible Quick Execution Control Pin Disables AD8307 Current to 150 UA Precautions for using the module: (1) The maximum input power of the detector module is + 17dBm, and the dynamic range is 92dB. There are actual measurements to see that nonlinearities begin to appear when they exceed -10dBm. (2) There is no reverse connection of the module, and there is no current limiting protection; when using the module, be careful not to reverse the connection, otherwise it will easily damage the chip or module. (3) The module is a low-power module, and the power supply does not exceed 5.5V. (4) Since the module is a high-precision device, in order to avoid unnecessary interference, it is recommended to use a linear power supply. (5) It is recommended to use the SMA interface for the input signal. Poor contact or poor quality wires may cause signal attenuation or excessive noise, making the measurement inaccurate. (6) The response and dynamic range of the detector module at different frequencies will be different, and there are differences between different modules, which is normal and not a problem of the module Frequently asked questions: Q: Is there no response when measuring pulse power? The output is a straight line. A: The default function of the module is power detection. It cannot detect pulse or instantaneous power. You need to change the C4 capacitor to a small capacitor value to detect pulse and instantaneous power. Generally, the higher the instantaneous requirements, the C4 capacitor can be removed. Q: I bought two modules. Is the output voltage different under the same test condition? Is it normal? A: There are individual differences between the modules. The actual measured details are typical data, and the specific parameters have been measured. Q: What is the use of the matching network entered? A: The AD8307 is compatible with a detection frequency of 500MHz. The input impedance required at different frequencies is different. The default parameters are compatible with most frequencies. On Nov 23, 2023 at 04:48:15 PST, seller added the following information:
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