AD608ARZ

AD608 is a low power, low distortion, low noise mixer as well as a complete, monolithic logarithmic/limiting amplifier that uses a successive-detection technique. In addition, this device provides both a high speed received signal strength indicator (RSSI) output with 80dB dynamic range and a hard-limited output. The RSSI output is from a two-pole post demodulation low-pass filter and provides a loadable output voltage of 0.2V to 1.8V. It operates from a single 2.7 V to 5.5 V supply at a typical power level of 21mW at 3V. The RF and local oscillator (LO) bandwidths both exceed 500MHz. In a typical IF application, it can accept the output of a 240MHz surface acoustic wave (SAW) filter and down convert it to a nominal 10.7MHz IF with a conversion gain of 24dB (ZIF = 165ohm). It is widely used in applications such as PHS, GSM, TDMA, FM, or PM receivers, battery-powered instrumentation, base station RSSI measurements etc.

• 1dB compression point is -15dBm typical at (input terminated in 50 ohm)
• Third-order intercept is -5dBm typical at (fRF = 240MHz and 240.02MHz, fLO = 229.3MHz)
• Logarithmic/limiting amplifier
• ±3° typical phase stability over 80dB range
• Noise figure is 11dB typical at (matched input, fRF = 100MHz)
• CMOS-compatible power-down to 300μW typical
• Enable/disable time is 200ns typical at (TA = 25°C, supply = 3V)
• Input capacitance is 3pF typical at (TA = 25°C, supply = 3V)
• Operating temperature range from -40°C to +85°C
• Package style is 16-lead standard small outline [SOIC-N]

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party