Product Summary

The AD8309ARU is a complete IF limiting amplifier, providing both an accurate logarithmic (decibel) measure of the input signal (the RSSI function) over a dynamic range of 100 dB, and a programmable limiter output, useful from 5 MHz to 500 MHz. The AD8309ARU is easy to use, requiring few external components. The applications of the AD8309ARU include: (1) Receivers for Frequency and Phase Modulation; (2)Very Wide Range IF and RF Power Measurement.

Parametrics

AD8309ARU maximum ratings: (1)Supply Voltage VS: 7.5 V; (2)Input Level, Differential (re 50 Ω) : +26 dBm; (3)Input Level, Single-Ended (re 50 Ω): +20 dBm; (4)Internal Power Dissipation: 500 mW; (5)qJA: 150℃/W; (6)qJC: 27.6℃/W; (7)Maximum Junction Temperature: +125℃.

Features

AD8309ARU features: (1)Complete Multistage Log-Limiting IF Amplifier; (2)100 dB Dynamic Range: –78 dBm to +22 dBm (Re 50 V); (3)Stable RSSI Scaling Over Temperature and Supplies; (4)Programmable Limiter Gain and Output Current; (5)Single Supply of +2.7 V to +6.5 V at 16 mA Typical; (6)Fully Differential Inputs, RIN = 1 kΩ, CIN = 2.5 pF; (7)500 ns Power-Up Time, <1 μA Sleep Current.

Diagrams

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
AD8309ARU
AD8309ARU

IC LOGARITHM AMP 100DB 16-TSSOP
Data Sheet
0-25: $9.91
AD8309ARU-REEL7
AD8309ARU-REEL7

IC LOG AMP DEMODULATING 16-TSSOP
Data Sheet
0-1000: $7.14
AD8309ARUZ
AD8309ARUZ

IC LOGARITHM AMP 100DB 16-TSSOP
Data Sheet
0-1: $10.21
1-10: $9.28
10-100: $7.89
100-250: $7.19
250-500: $6.73
500-1000: $6.18
AD8309ARUZ-REEL7
AD8309ARUZ-REEL7

IC AMP LOG DEMODULATING 16TSSOP
Data Sheet
0-1000: $6.18