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  2. Amplifiers
  3. Operational Amplifiers (Op Amps)
  4. High Output Current Op Amps ≥ 100mA
  5. LT6557

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Overview

Features and Benefits

  • –3dB Small-Signal Bandwidth: 500MHz
  • –3dB 2VP-P Large-Signal Bandwidth: 400MHz
  • Slew Rate: 2200V/µs
  • Fixed Gain of 2, No External Resistors Required
  • AC Coupling with Programmable DC Input Bias
  • Output Swings to 0.8V of Supply Rails
  • Full Video Swing with 5V Single Supply
  • Diff Gain: 0.02%
  • Diff Phase: 0.05°
  • Shutdown Pin
  • High Output Current: ±100mA
  • Supply Range: 3V to 7.5V
  • Operating Temperature Range: –40°C to 85°C
  • Available in 16-Lead SSOP and 5mm × 3mm DFN Packages

Product Details

The LT6557 is a high speed triple video amplifier with an internal fixed gain of 2 and a programmable DC input bias voltage. This amplifier features a 400MHz 2VP-P signal bandwidth, 2200V/µs slew rate and a unique ability to drive heavy output loads to 0.8V of the supply rails, making the LT6557 ideal for a single 5V supply, wideband video application. With just one resistor, the inputs of all three amplifiers can be programmed to a common voltage level, simplifying and reducing the need for external circuitry in the AC-coupled applications. Without the programmable resistor, the input bias circuit becomes inactive, allowing the use of an external clamp circuit or direct coupled input.

The LT6557 has separate power supply and ground pins for each amplifier to improve channel separation and to ease power supply bypassing. The LT6557 provides uncompromised performance in many high speed applications where a low voltage, single supply is required.

The LT6557 is available in 16-lead SSOP and 5mm × 3mm DFN packages.

Applications

  • LCD Video Projectors
  • RGB HD Video Amplifiers
  • Coaxial Cable Drivers
  • Low Supply ADC Drivers

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Evaluation Kits (2)

Documentation & Resources

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  • Data Sheets (1)
  • Reliability Data (1)
  • User Guides (1)
  • Design Notes (1)
  • Technical Articles (1)
    • Document Type

    Tools & Simulations

    LTspice

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    LT6557

    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
    LT6557CDHC#PBF Material Declaration Reliability Data 16-Lead DFN (5mm x 3mm w/ EP)
    LT6557CDHC#TRPBF Material Declaration Reliability Data 16-Lead DFN (5mm x 3mm w/ EP)
    LT6557CGN#PBF Material Declaration Reliability Data 16-Lead SSOP (Narrow 0.15 Inch)
    LT6557CGN#TRPBF Material Declaration Reliability Data 16-Lead SSOP (Narrow 0.15 Inch)
    LT6557IDHC#PBF Material Declaration Reliability Data 16-Lead DFN (5mm x 3mm w/ EP)
    LT6557IDHC#TRPBF Material Declaration Reliability Data 16-Lead DFN (5mm x 3mm w/ EP)
    LT6557IGN#PBF Material Declaration Reliability Data 16-Lead SSOP (Narrow 0.15 Inch)
    LT6557IGN#TRPBF Material Declaration Reliability Data 16-Lead SSOP (Narrow 0.15 Inch)
    Wafer Fabrication Data R378 Reliability Data

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    Select Model for PCN Information
    • LT6557CGN#PBF Production
    • LT6557CGN#TRPBF Production
    • LT6557IGN#PBF Production
    • LT6557IGN#TRPBF Production

    Support & Discussions

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