Product Summary

The AD8313ARM is a complete multistage demodulating logarithmic amplifier, capable of accurately converting an RF signal at its differential input to an equivalent decibel-scaled value at its dc output. The AD8313ARM maintains a high degree of log conformance for signal frequencies from 0.1 GHz to 2.5 GHz and is useful over the range of 10 MHz to 3.5 GHz. The nominal input dynamic range is –65 dBm to 0 dBm (re: 50 W), and the sensitivity of the AD8313ARM can be increased by 6 dB or more with a narrow band input impedance matching network or balun. Application is straightforward, requiring only a single supply of 2.7 V–5.5 V and the addition of a suitable input and supply decoupling. Operating on a 3 V supply, its 13.7 mA consumption (for TA =+25℃) amounts to only 41 mW. A power-down feature of the AD8313ARM is provided; the input is taken high to initiate a low current (20 mA) sleep mode, with a threshold at half the supply voltage.

Parametrics

AD8313ARM absolute maximum ratings: (1)Supply Voltage VS: 5.5 V; (2)VOUT, VSET, PWDN: 0 V, VPOS; (3)Input Power Differential (re: 50 W, 5.5 V): +25 dBm; (4)Input Power Single-Ended (re: 50 W, 5.5 V): +19 dBm; (5)Internal Power Dissipation: 200 mW; (6)qJA: 200℃/W; (7)Maximum Junction Temperature: +125℃; (8)Operating Temperature Range: –40℃ to +85℃; (9)Storage Temperature Range: –65℃ to +150℃; (10)Lead Temperature Range (Soldering 60 sec): +300℃.

Features

AD8313ARM features: (1)Wide Bandwidth: 0.1 GHz to 2.5 GHz Min; (2)High Dynamic Range: 70 dB to 63.0 dB; (3)High Accuracy: 61.0 dB over 65 dB Range (@ 1.9 GHz); (4)Fast Response: 40 ns Full-Scale Typical; (5)Controller Mode with Error Output; (6)Scaling Stable Over Supply and Temperature; (7)Wide Supply Range: +2.7 V to +5.5 V; (8)Low Power: 40 mW at 3 V; (9)Power-Down Feature: 60 mW at 3 V; (10)Complete and Easy to Use.

Diagrams

AD8313ARM functional block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
AD8313ARM
AD8313ARM


IC LOGARTIHMIC AMP 70DB 8-MSOP

Data Sheet

0-20: $12.45
AD8313ARM-REEL
AD8313ARM-REEL


IC LOG DETECTOR/CTRLR 8-MSOP

Data Sheet

0-3000: $8.97
AD8313ARM-REEL7
AD8313ARM-REEL7


IC LOG DETECTOR/CTRLR 8-MSOP

Data Sheet

Negotiable 
AD8313ARMZ
AD8313ARMZ


IC LOGARTIHMIC AMP 70DB 8-MSOP

Data Sheet

0-1: $11.65
1-10: $10.78
10-100: $9.21
100-250: $8.45
250-500: $8.04
500-1000: $7.77
AD8313ARMZ-REEL
AD8313ARMZ-REEL


IC LOG DETECTOR/CTRLR 8MSOP

Data Sheet

0-3000: $7.77
AD8313ARMZ-REEL7
AD8313ARMZ-REEL7


IC LOG DETECTOR/CTRLR 8-MSOP TR

Data Sheet

0-1000: $7.77