1. Products
  2. Optical Communications and Sensing
  3. Fiber Optic Data
  4. Optical Limiting Amplifiers
  5. HMC914


Features and Benefits

  • Supports Data Rates up to 12.5 Gbps
  • Differential Small Signal Gain: 32 dB
  • Programmable Loss-of-Signal Detection (LOS)
  • Adjustable Differential Saturated O/P Voltage
    Swing up to 750 mV
  • Automatic Output Disable Mode
  • Integrated DC Offset Correction
  • Received Signal Strength Indicator (RSSI) Output
  • 24 Lead 4×4mm SMT Package: 16mm2

Product Details

HMC914LP4E is a limiting amplifier designed to support data transmission rates up to 12.5 Gbps. The amplifier can operate over a wide range of input voltage levels and provides constant-level differential output swing. HMC914LP4E features a loss of signal (LOS) indicator output where the input signal amplitude threshold level can be adjusted using the LOSTH pin. HMC914LP4E also features an output level control pin, VAC, which allows for loss compensation or for output signal level optimization. Differential output signal swing can be adjusted up to 750 mVp-p. An integrated DC offset compensation is also provided on chip. The HMC914LP4E provides an analog RSSI output voltage which is proportional to input signal amplitude.

All single-ended input signals are terminated with 50 ohms to +3.3V on-chip, and may be either AC or DC coupled. The outputs of the HMC914LP4E may be operated either differentially or single-ended. The HMC914LP4E operates from a single +3.3V DC supply and is available in a plastic RoHS compliant 4x4 mm SMT package.


  • SONET/SDH-Based Transmission Systems
  • OC-192 Fiber Optic Modules
  • 10 Gigabit Ethernet
  • 8x and 10x Fiber Channel
  • Wideband RF Gain Block

Product Lifecycle icon-not-recommended Last Time Buy

All products in this family will be obsolete soon. Please contact ADI Sales or Distributors to arrange for final purchases and read our Obsolescence Information to review the time periods for placing final orders and receiving final shipments.

Evaluation Kits (1)

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
HMC914LP4E Material Declaration Reliability Data 24-Lead QFN (4mm x 4mm w/ EP)
HMC914LP4ETR Material Declaration Reliability Data 24-Lead QFN (4mm x 4mm w/ EP)
Wafer Fabrication Data

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Evaluation Boards

Pricing displayed is based on 1-piece.

Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.