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Manufacturer / Brand: AD
Details: 250 MHz Demodulating Logarithmic Amplifier IC
Series: AD641
Quantity Available: Over 13580 pieces

Datasheet for AD641ANZ:

AD641ANZ datasheet
Price for AD641ANZ
Product Parameters
  • Manufacturer Part Number : AD641ANZ
  • Manufacturer : AD
  • Description : 250 MHz Demodulating Logarithmic Amplifier IC
  • Series : AD641
  • Reference Price : USD 26.256
  • Our Price : We have a better price, contact us by email
  • Product Type : RF Power Detectors
  • Function : Log Detectors
  • Current Suggest : Production
  • Status : Production
  • ROHS Status : ROHS Compliant (Lead Free)
  • Package Type : 20-Lead PDIP
  • Pins : 20
  • MFG Package Case : N-20
  • Part Type : OTH
  • Standard Packing Type : Tube
  • Standard Packing Quantity : 18
  • Working Temperature : -40 to 85C
  • Other Part Number : AD641ANZ
  • Shipping methods : DHL FEDEX UPS TNT
  • Delivery Time : Ship within 1 day.
  • Manufacturer Production time : 6-8 weeks (Normally have stocks)
  • Weight : 0.001KG

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Features and Benefits of AD641ANZ
Product Detailed Description for AD641ANZ

The AD641 is a 250 MHz, demodulating logarithmic amplifierwith an accuracy of ±2.0 dB and 44 dB dynamic range. TheAD641 uses a successive detection architecture to provide anoutput current that is logarithmically proportional to its inputvoltage. The output current can be converted to a voltage usingone of several on-chip resistors to select the slope. A singleAD641 provides up to 44 dB of dynamic range at speeds up to250 MHz, and two cascaded AD641s together can provide58 dB of dynamic range at speeds up to 250 MHz. The AD641is fully stable and well characterized over either the industrial ormilitary temperature ranges.

The AD641 is not a logarithmic building block, but rather acomplete logarithmic solution for compressing and measuringwide dynamic range signals. The AD641 is comprised of fivestages and each stage has a full wave rectifier, whose currentdepends on the absolute value of its input voltage. The outputof these stages are summed together to provide the demodulatedoutput current scaled at 1 mA per decade (50 µA/dB).

Without utilizing the 10× input attenuator, log conformance of2.0 dB is maintained over the input range –44 dBm to 0 dBm.The attenuator offers the most flexibility without significantlyimpacting performance.

The 250 MHz bandwidth and temperature stability make thisproduct ideal for high speed signal power measurement in RF/IF systems. ECM/Radar and Communication applications areroutinely in the 100 MHz–180 MHz range for power measurement.The bandwidth and accuracy, as well as dynamic range,make this part ideal for high speed, wide dynamic range signals.The AD641 is offered in industrial (–40°C to +85°C) and military(–55°C to +125°C) package temperature ranges. Industrialversions are available in plastic DIP and PLCC; MIL versionsare packaged in cerdip.

Applications

  • IF/RF signal processing
  • Received Signal Strength Indicator (RSSI)
  • High speed signal compression
  • High speed spectrum analyzer
  • ECM/radar
Lifecycle information of AD641ANZ

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

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