AD8302ARU

Series: -
Manufacturer: Analog Devices Inc
Voltage - Supply: 2.7 V ~ 5.5 V
RF Type: General Purpose
Packaging: Tube
Frequency: 2.7GHz
Accuracy: 0.5dB
Input Range: -60dBm ~ 0dBm
Current - Supply: 23mA
Package / Case: 14-TSSOP (0.173", 4.40mm Width)


Features:

Measures Gain/Loss and Phase up to 2.7 GHz
Dual Demodulating Log Amps and Phase Detector
Input Range 60 dBm to 0 dBm in a 50
System
Accurate Gain Measurement Scaling (30 mV/dB)
Typical Nonlinearity < 0.5 dB
Accurate Phase Measurement Scaling (10 mV/Degree)
Typical Nonlinearity < 1 Degree
Measurement/Controller/Level Comparator Modes
Operates from Supply Voltages of 2.7 V5.5 V
Stable 1.8 V Reference Voltage Output
Small Signal Envelope Bandwidth from DC to 30 MHz


Application

RF/IF PA Linearization
Precise RF Power Control
Remote System Monitoring and Diagnostics
Return Loss/VSWR Measurements
Log Ratio Function for AC Signals


Specifications

ABSOLUTE MAXIMUM RATINGS1
Supply Voltage V_S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 V
PSET, MSET Voltage . . . . . . . . . . . . . . . .... . . . . . . VS + 0.3 V
INPA, INPB Maximum Input . . . . . . . . . . . . ....... . . . . 3 dBV
Equivalent Power Re. 50 . . . . . . . . . . . . . ...... . . . . 10 dBm
_JA2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C/W
Maximum Junction Temperature . . . . . . . . . ,.. . . . . . . 125°C
Operating Temperature Range . . . . . . . . . 40°C to +85°C
Storage Temperature Range . . . . . . . . . .65°C to +150°C
Lead Temperature Range (Soldering 60 sec) . . . . . . . 300°C


Description

      The AD8302 is an innovative, 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 2.7 V5.5 V. The ac-coupled input signals can range from 60 dBm to 0 dBm in a 50 system, from low frequencies up to 2.7 GHz. The outputs provide an accurate measurement of either gain or loss over a ±30 dB range scaled to 30 mV/dB, and of phase over a 0°180° range scaled to 10 mV/degree. Both subsystems have an output bandwidth of 30 MHz, which may optionally be reduced by the addition of external filter capacitors. The AD8302 can be used in direct control mode to servo gain and phase of a signal chain toward predetermined setpoints.
     The AD8302 comprises a closely matched pair of demodulating logarithmic amplifiers, each having a 60 dB measurement range. By taking the difference of their outputs, a measurement of the magnitude ratio or gain between the two input signals is available. These signals may even be at different frequencies, allowing the measurement of conversion gain or loss. The AD8302 may be used to determine absolute signal level by applying the unknown signal to one input and a calibrated ac reference signal  to the other. With the output stage feedback connection disabled, a comparator may be realized, using the setpoint pins MSET and PSET to program the thresholds.

Parameters:

Technical/Catalog Information	AD8302ARU
Vendor	Analog Devices Inc
Category	RF and RFID
RF Type	General Purpose
Package / Case	14-TSSOP
Frequency	2.7GHz
Features	Single 2.7V ~ 5.5V Supply
Packaging	Tube
Drawing Number	*
RoHS Status	RoHS Non-Compliant
Other Names	AD8302ARU AD8302ARU