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AD8309

Features: Complete Multistage Log-Limiting IF Amplifier100 dB Dynamic Range: 78 dBm to +22 dBm (Re 50 V)Stable RSSI Scaling Over Temperature and Supplies:20 mV/dB Slope, 95 dBm Intercept60.4 dB RSSI Linearity up to 200 MHzProgrammable Limiter Gain and Output CurrentDifferential Outputs to 10 mA, 2...

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SeekIC No. : 004272045 Detail

AD8309: Features: Complete Multistage Log-Limiting IF Amplifier100 dB Dynamic Range: 78 dBm to +22 dBm (Re 50 V)Stable RSSI Scaling Over Temperature and Supplies:20 mV/dB Slope, 95 dBm Intercept60.4 dB RSSI...

AD8309 Data Sheet

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Part Number:
AD8309
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



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




Pinout

AD8309 Diagram

Connection Diagram




Specifications

RF Frequency (MHz) 5 to 500
Dynamic Range (dB) 100dB
Temp Stability (dB) ±1dB
Phase Accuracy (deg) ±3Deg
Response Time (ns typ) 67ns
Voltage Supply (V) 2.7 to 5.5
Supply Current 16mA
Limiter Output Yes
AC Linearity (± dB) 1dB
Power Consumption (mW) 80mW
Package 16-Lead TSSOP


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




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.






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