AD8313 0.1 GHz TO 2.5 GHz, 70 dB Logarithmic Detector / Controller

The AD8313 is fabricated on Analog Devices, Inc., advanced 25 GHz silicon bipolar IC process and is available in an 8-lead MSOP package. The operating temperature range is −40°C to +85°C.

The AD8313 is a complete multistage demodulating logarithmic amplifier that can accurately convert an RF signal at its input to an equivalent decibel-scaled value at its dc output. The AD8313 maintains a high degree of log conformance for signal frequencies from 0.1 GHz to 2.5 GHz. Application is straightforward, requiring only a single supply of 2.7 V to 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°C) is only 41 mW. A power-down feature is provided; the input is taken high to initiate a low current (20 µA) sleep mode, with a threshold at half the supply voltage

The AD8313 is fabricated on Analog Devices, Inc., advanced 25 GHz silicon bipolar IC process and is available in an 8-lead MSOP package. The operating temperature range is −40°C to +85°C.

Features and Benefits

Wide bandwidth:
0.1 GHz to 2.5 GHz min

High dynamic range:
70 dB to ±3.0 dB

High accuracy: ±1.0 dB over 65 dB range (@ 1.9 GHz)

Fast response:
40 ns full-scale typical

Controller mode with error output

Scaling stable over supply and temperature

Wide supply range:
2.7 V to 5.5 V

Low power:
40 mW at 3 V

Power-down feature:
60 mW at 3 V

RF & Microwave

Data Sheets

Document	note
AD8313: 0.1 GHz-2.5 GHz, 70 dB Logarithmic Detector/Controller Data Sheet (Rev. E)	PDF 448.88 K

Application Notes

Document	note
AN-1040: RF Power Calibration Improves Performance of Wireless Transmitters (Rev. 0)	PDF 152 kB

Frequently Asked Questions

Document	note

Order Information

Part Number	Package	Packing Qty	Temp Range	Price 100-499	Price 1000+	RoHS
AD8313ARM Production	8 ld MSOP	OTH 50	-40 to 85C	14.32	9.23	N
AD8313ARM-REEL Production	8 ld MSOP	REEL 3000	-40 to 85C	0	9.23	N
AD8313ARM-REEL7 Production	8 ld MSOP	REEL 1000	-40 to 85C	0	9.23	N
AD8313ARMZ Production	8 ld MSOP	OTH 50	-40 to 85C	12.4	7.99	Y
AD8313ARMZ-REEL Production	8 ld MSOP	REEL 3000	-40 to 85C	0	7.99	Y
AD8313ARMZ-REEL7 Production	8 ld MSOP	REEL 1000	-40 to 85C	0	7.99	Y

Evaluation Boards

Part Number	Description	Price	RoHS
AD8313-EVALZ	Evaluation Board	100.19	Y

Reference Materials

Tutorials：Design and Operation of Automatic Gain Control Loops for Receivers in Modern...
Product Selection Guide：RF Source Booklet
Technical Articles：Measurement and Control of RF Power, Part I
Technical Articles：Measurement and Control of RF Power, Part II
Technical Articles：Measurement and Control of RF Power, Part III
Technical Articles：Log Amps and Directional Couplers Enable VSWR Detection
Technical Articles：Measuring VSWR and Gain in Wireless Systems
Technical Articles：Measuring the RF Power in CDMA2000 and W-CDMA High Power Amplifiers (HPAs)
Technical Articles：Detecting Fast RF Bursts using Log Amps
Technical Articles：Make Precise Base-Station Power Measurements
Technical Articles：Design a Logamp RF Pulse Detector

Datasheet: AD8313: 0.1 GHz-2.5 GHz, 70 dB Logarithmic Detector/Controller Data Sheet (Rev. E) ad8313














Other: Detecting Fast RF Bursts using Log Amps ad640; Design a Logamp RF Pulse Detector ad640; Design and Operation of Automatic Gain Control Loops for Receivers in Modern... ad8369; Make Precise Base-Station Power Measurements ad640; Log Amps and Directional Couplers Enable VSWR Detection ad640; AN-1040: RF Power Calibration Improves Performance of Wireless Transmitters (Rev. 0) ad8307; AN-1040: RF功率校准提高无线发射机的性能 (Rev. 0) ad8307; Measuring the RF Power in CDMA2000 and W-CDMA High Power Amplifiers (HPAs) ad640; Measuring VSWR and Gain in Wireless Systems ad640; RF Source Booklet adf9010; Measurement and Control of RF Power, Part I ad640; Measurement and Control of RF Power, Part II ad640; Measurement and Control of RF Power, Part III ad640