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MFG:ADI D/C:09
Part Number: AD8309
MFG: ADI
D/C: 09
Description: The AD8309 is a complete IF limiting amplifier, providing both an accurate logarithmic (decibel) measure of the inpu...
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AD8309
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DataSheet
General Description
AD8309 General Description
The AD8309 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.
It is easy to use, requiring few external components. A single supply voltage of +2.7 V to +6.5 V at 16 mA is needed, corre- sponding to a power consumption of under 50 mW at 3 V, plus the limiter bias current, determined by the application and typically 2 mA, providing a limiter gain of 100 dB when using 200 Ω loads. A CMOS-compatible control interface can enable the AD8309 within about 500 ns and disable it to a standby
current of under 1 µA.
AD8309 Maximum Ratings
Supply Voltage VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.5 V
Input Level, Differential (re 50 Ω) . . . . . . . . . . . . . . . . . +26 dBm
Input Level, Single-Ended (re 50 Ω) . . . . . . . . . . . . . . . +20 dBm
Internal Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . 500 mW
JA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C/W
JC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27.6°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
Input Level, Differential (re 50 Ω) . . . . . . . . . . . . . . . . . +26 dBm
Input Level, Single-Ended (re 50 Ω) . . . . . . . . . . . . . . . +20 dBm
Internal Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . 500 mW
JA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C/W
JC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27.6°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
AD8309 Features
Complete Multistage Log-Limiting IF Amplifier
100 dB Dynamic Range: 78 dBm to +22 dBm (Re 50 V)
Stable RSSI Scaling Over Temperature and Supplies:
20 mV/dB Slope, 95 dBm Intercept
60.4 dB RSSI Linearity up to 200 MHz
Programmable Limiter Gain and Output Current
Differential Outputs to 10 mA, 2.4 V p-p
Overall Gain 100 dB, Bandwidth 500 MHz
Constant Phase (Typical 680 ps Delay Skew)
Single Supply of +2.7 V to +6.5 V at 16 mA Typical
Fully Differential Inputs, RIN = 1 kV, CIN = 2.5 pF
500 ns Power-Up Time, <1 mA Sleep Current
APPLICATIONS
Receivers for Frequency and Phase Modulation
Very Wide Range IF and RF Power Measurement
Receiver Signal Strength Indication (RSSI)
Low Cost Radar and Sonar Signal Processing
Instrumentation: Network and Spectrum Analyzers
100 dB Dynamic Range: 78 dBm to +22 dBm (Re 50 V)
Stable RSSI Scaling Over Temperature and Supplies:
20 mV/dB Slope, 95 dBm Intercept
60.4 dB RSSI Linearity up to 200 MHz
Programmable Limiter Gain and Output Current
Differential Outputs to 10 mA, 2.4 V p-p
Overall Gain 100 dB, Bandwidth 500 MHz
Constant Phase (Typical 680 ps Delay Skew)
Single Supply of +2.7 V to +6.5 V at 16 mA Typical
Fully Differential Inputs, RIN = 1 kV, CIN = 2.5 pF
500 ns Power-Up Time, <1 mA Sleep Current
APPLICATIONS
Receivers for Frequency and Phase Modulation
Very Wide Range IF and RF Power Measurement
Receiver Signal Strength Indication (RSSI)
Low Cost Radar and Sonar Signal Processing
Instrumentation: Network and Spectrum Analyzers
AD8309 Connection Diagram
AD8309
PDF/DataSheet Download
- Datasheet: AD8309
- File Size: 634880 KB
- Manufacturer: AD
- Click here to Download
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