AD8318 1M-8GHz 70dB Logarithmic Detector Dynamic ALC AGC Control High-Speed Frequency Measurement Board Power Meter

Descriptions: The AD8318 is a demodulating logarithmic amplifier, capable of accurately converting an RF input signal to a corresponding decibel-scaled output voltage. It employs the progressive compression over a cascaded amplifier chain, each stage of which is equipped with a detector cell. The device is used in measurement or controller mode. The AD8318 maintains accurate log conformance for signals of 1 MHz to 6 GHz and provides useful operation to 8 GHz. The input range is typically 60 dB (re: 50 ¦¸) with error less than ¡À1 dB. The AD8318 has a 10 ns response time that enables RF burst detection to beyond 45 MHz. The device provides unprece-dented logarithmic intercept stability vs. ambient temperature conditions. A 2 mV/¡ãC slope temperature sensor output is also provided for additional system monitoring. A single supply of 5 V is required. Current consumption is typically 68 mA. Power consumption decreases to <1.5 mW when the device is disabled. The AD8318 can be configured to provide a control voltage to a VGA, such as a power amplifier or a measurement output, from Pin VOUT. Because the output can be used for controller applications, wideband noise is minimal. In this mode, the setpoint control voltage is applied to VSET. Specifications: Wide bandwidth: 1 MHz to 8 GHz High accuracy: ¡À1.0 dB over 55 dB range (f <5.8 GHz) Stability over temperature: ¡À0.5 dB Low noise measurement/controller output (VOUT) Pulse response time: 10 ns/12 ns (fall/rise) Power-down feature: <1.5 mW at 5 V Single-supply operation: 5 V @ 68 mA Size:35*37mm/0.38*1.46inch For details, please enter the link below: https://www.sendspace.com/file/bptaxu Package Included: 1 x AD8318 1M-8GHz 70dB Logarithmic Detector

• Application to transmitter PA setpoint control and level monitoring RSSI measurement in base stations, WLAN, WiMAX, and radars
• The AD8318 can be configured to provide a control voltage to a VGA, such as a power amplifier or a measurement output, from Pin VOUT
• It employs the progressive compression over a cascaded amplifier chain, each stage of which is equipped with a detector cell
• The AD8318 is a demodulating logarithmic amplifier, capable of accurately converting an input to a corresponding decibel-scaled output voltage
• Small footprint LFCSP,Integrated temperature sensor,Fabricated using high speed process