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AD8128:  CAT-5 Receiver with Adjustable Line Equalization

The AD8128 is a high speed, differential receiver/equalizer that compensates for the transmission losses of unshielded twisted pair (UTP) CAT-5 cables. Various frequency dependent gain stages are summed together to best approximate the inverse frequency response of CAT-5/CAT-5e cable. An equalized bandwidth of 120 MHz can be achieved for 100 meters of cable.

Low integrated output noise ...More

AD8128:  CAT-5 Receiver with Adjustable Line Equalization

Product Description

The AD8128 is a high speed, differential receiver/equalizer that compensates for the transmission losses of unshielded twisted pair (UTP) CAT-5 cables. Various frequency dependent gain stages are summed together to best approximate the inverse frequency response of CAT-5/CAT-5e cable. An equalized bandwidth of 120 MHz can be achieved for 100 meters of cable.

Low integrated output noise and offset voltage adjust make the AD8128 an excellent choice for dc-coupled wideband RGB-over-CAT-5 applications. For systems where the UTP cable is longer than 100 meters, two AD8128s can be cascaded to compensate for losses up to 200 meters of CAT-5/CAT-5e.

The AD8128 can be used as a stand-alone receiver/equalizer or in conjunction with the AD8143, triple differential receiver, to provide a complete low cost solution for receiving RGB over UTP cable in such applications as KVM.

The AD8128 is available in a 3 mm x 3 mm 8-lead LFCSP and is rated to operate over the extended temperature range of -40°C to + 85°C.

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  • Tuned to compensate for Category-5 (CAT-5) cable losses
    Up to 100 meters @ 120 MHz
  • 2 voltage controlled frequency response adjustment pins
    High frequency peaking adjustment
    Broadband gain adjustment
  • Slew rate: 2700 V/µs
  • Low output noise
    1.5 mV rms integrated noise @ 100 meters equalized bandwidth
  • DC output offset adjust
  • Equalized pass-band ripple ±1 dB to 70 MHz
  • Supply current: 24 mA on ±5 V
  • Small 8-lead 3 mm x 3 mm LFCSP
  • 0.1 dB Flatness (MHz): 70
  • -3 dB BW (MHz): 120MHz
  • Package: 8-Lead LFCSP
  • Slew Rate (V/us): 2700V/µs
  • Supply Current : 24mA
  • Pos Supply: +4.5V to +5.5V

Functional Block Diagram for AD8128

类似产品

arrow View Full Interactive Product Selection Table
Part# -3 dB BW (MHz) Slew Rate (V/us) 0.1 dB Flatness (MHz) Minimum Gain (Acl) Pos Supply Supply Current Features Package Price* (1000-4999)
AD8123 120 - - - +4.5V to +5.5V 132mA Up to 300 m of Cat-5 40-Lead LFCSP $7.88
AD8128 120 2700 70 - +4.5V to +5.5V 24mA Up to 100m of CAT-5 8-Lead LFCSP $2.62
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* The pricing listed here is provided only for budgetary purposes as recommended list price in U.S. Dollars in the United States ex factor per unit for the stated volume. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
** Pricing is currently unavailable. Click on the product number to see the Product Page for additional information.

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