ADL5519ACPZ-R7

ADL5519 is a dual-demodulating logarithmic amplifier that incorporates two AD8317s. It can accurately convert an RF input signal into a corresponding decibel-scaled output. It provides accurately scaled, independent, logarithmic output voltages for both RF measurement channels. The device has two additional output ports, OUTP and OUTN, that provide the measured differences between the OUTA and OUTB channels. The on-chip channel matching makes the log amp outputs insensitive to temperature and process variations. The temperature sensor pin provides a scaled voltage that is proportional to the temperature over the operating temperature range of the device. It is used in applications such as RF transmitter power amplifier linearization and gain/power control, power monitoring in radio link transmitters, dual-channel wireless infrastructure radios, antenna VSWR monitor, RSSI measurement in base stations, WLAN, WiMAX, radar etc.

• Dual-channel and channel difference output ports
• Integrated accurate scaled temperature sensor
• Stability over temperature is ±0.5dB typ at (-40°C to +85°C)
• Low noise detector/controller outputs
• Fall time is 6ns typ at (input level = no signal to -10dBm, 80% to 20%, CLPA, CLPB = open)
• Rise time is 8ns typ at (input level = -10dBm to no signal, 20% to 80%,CLPA, CLPB = open)
• Supply operation from 3.3V to 5.5V at 60mA
• Fabricated using high speed SiGe process
• Operating temperature range from -40°C to +125°C
• Package style is 32-lead lead frame chip scale [LFCSP]

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