AD8302ARUZ

AD8302 is a RF/IF gain and phase detector. This is a fully integrated system for measuring gain/loss and phase in numerous receive, transmit, and instrumentation applications. It requires few external components and a single supply of 2.7V to 5.5V. The AC-coupled input signals can range from –60dBm to 0dBm in a 50 ohm system, from low frequencies up to 2.7GHz. The outputs provide an accurate measurement of either gain or loss over a ±30dB range scaled to 30mV/dB, and of phase over a 0°–180° range scaled to 10mV/degree. Both subsystems have an output bandwidth of 30MHz, which may optionally be reduced by the addition of external filter capacitors. This can be used in controller mode to force the gain and phase of a signal chain toward predetermined setpoints. Application includes RF/IF PA linearization, precise RF power control, remote system monitoring and diagnostics, return loss/VSWR measurements, log ratio function for AC signals.

• Input frequency range from <gt/>0 to 2700MHz (TA=25°C, VS=5V)
• Typical gain measurement range is ±30dB (PIN at INPA, PIN at INPB=–30dBm, TA=25°C)
• Typical slew rate is 25V/µs (40dB change, load 20pF 10Kohm, TA=25°C)
• Measurement/controller/level comparator modes
• Typical nonlinearity <lt/> 1degree
• Accurate phase measurement scaling (10mV/degree)
• Dual demodulating log amps and phase detector
• 14-lead thin shrink small outline package [TSSOP]
• Temperature range from -40°C to +85°C

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