Datasheet Linear Technology LT5504 — Datenblatt

LT5504
800MHz to 2.7GHz
RF Measuring Receiver U DESCRIPTIO FEATURES
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в–  The LTВ®5504 is an 800MHz to 2700MHz monolithic integrated measuring receiver, capable of detecting a wide
dynamic range RF signal from –75dBm to +5dBm. The
logarithm of the RF signal is precisely converted into a
linear DC voltage. The LT5504 consists of RF/IF limiters,
an LO buffer amplifier, a limiting mixer, a 3rd-order
450MHz integrated low pass filter, RF/IF detectors and an
output interface. The ultrawide dynamic range is achieved
by simultaneously measuring the RF signal and a downconverted IF signal obtained using the on-chip mixer and
an external local oscillator. The RF-and IF-detected signals are summed to generate an accurate linear DC voltage
proportional to the input RF voltage (or power) in dB. The
output is buffered with a low output impedance driver. RF Frequency Range: 800MHz to 2.7GHz
Ultra Wide Dynamic Range: 75dB at 900MHz
Wide Power Supply Range: 2.7V to 5.25V
Low Supply Current: 14.7mA at 3V
8-Lead MS0P Package U
APPLICATIO S …