AD8318 PDF Datasheet


Please enter the part number you wish to PDF download in the search bar.


scroll

Description

This is Logarithmic Detector/Controller. 1 MH- to 8 GHz, 70 dB Logarithmic Detector, Controller AD8318 FEATURES Wide bandwidth: 1 MH- to 8 GH- High accuracy: ±1.0 dB over 55 dB range (f < 5.8 GHz) Stability over temperature: ±0.5 dB Low noise measurement, controller output (VOUT) Pulse response time: 10 ns, 12 ns (fall, rise) Integrated temperature sensor Small footprint LFCSP Power-down feature: <1.5 mW at 5 V Single-supply operation: 5 V @ 68 mA Fabricated using high speed SiGe process APPLICATIONS RF transmitter PA setpoint control and level monitoring RSSI measurement in base stations, WLAN, WiMAX, and radars GENERAL DESCRIPTION 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 technique 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 signa.