| Description: | - Features: AD8307 is the first 8-pin (SOIC_N) package logarithmic amplifier. It is based on a progressive compression complete 500 MHz single-chip detection (successive detection) technique logarithmic amplifier at all frequencies up to 100 MHz and provides 92 dB (± 3 dB error) and 88 dB (± 1 dB error community) dynamic range. AD8307 is very stable and easy to use, without a lot of external devices. AD8307 2.7 V to 5.5 V power supply, the power supply current of 7.5 mA, 3 V power voltage is only 22.5 mW. Fast CMOS compatible control pin can disable the AD8307, the standby current is less than 150 μA. Each cascaded amplifier / limiter unit has 14.3 dB of small signal gain and the -3 dB bandwidth of 900 MHz. The device supports a fully differential input, and a moderately high impedance (1.1 kΩ shunt resistor, a capacitor is about 1.4 pF). AD8307 provide from about -75 dBm (which, dBm refers to the 50 Ω source, namely a sine amplitude of about ± 56 μV) to +17 dBm (sine amplitude ± 2.2 V) of the basic dynamic range. Simple input matching network can lower this range to -88 dBm to +3 dBm. In the middle part of the range of frequencies up to 100 MHz, the logarithmic linearity ± 0.3 dB (typ), and a slight decrease in the 500 MHz. AD8307 is no minimum frequency limit can be used for 20 Hz or lower audio frequencies. 2 μA / dB nominal current by 12.5 kΩ internal resistance will produce an output voltage with a slope of 25 mV / dB. Voltage range from -74 dBm input of 0.25 V (that is, when 20 μV rms sinusoidal input AC intercept point -84 dBm) to 2.5 V. +16 dBm of input Slope and intercept using an external regulator to fine tune. For example, when a 2.7 V power supply, the output slew rate can be reduced to 15 mV / dB, it is possible to utilize the entire dynamic range. When the parameter changes, AD8307 has excellent supply insensitivity and temperature stability. The devices enable low cost, small size, low power consumption, high accuracy and stability, a very wide dynamic range, as well as the perfect combination of audio from IF to UHF frequency range suitable for the need to reduce the signal decibel equivalent a variety of applications values. AD8307 can be to + 85 ° C industrial temperature range at -40 ° C, 8-pin SOIC and PDIP packages. AD8307AR Features: Complete multistage logarithmic amplifier 92 dB dynamic range: -75 dBm to +17 dBm, a matching network may reach -90 dBm Single supply voltage: minimum 2.7 V-5.5V, the supply current: 7.5 mA (typ) Operating frequency: DC to 500 MHz, Linearity: ± 1 dB Slope: 25 mV / dB, cut-off point: -84 dBm With high stability over the entire temperature range Complete differential dc-coupled signal path On power-up time: 100 ns, standby current: 150 μA Board Size: 35*25mm (SMA-K connector)
- Package Contents 100% Brand New 1 xDC 5V AD8307 1MHz to 500MHz Wideband RF Detector RF Power Meter Strength Meter
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