SNOSB30P October   2008  – January 2015 LMH6554

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Typical Application Schematic
  5. 5 Revision History
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics: +5 V
    6. 7.6 Typical Performance Characteristics VS = ±2.5 V
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 Single-Ended Input to Differential Output Operation
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1 Enable / Disable Operation
          2. 9.2.1.2.2 Single-Ended Input to Differential Output Operation
          3. 9.2.1.2.3 Driving Capacitive Loads
        3. 9.2.1.3 Application Curves
      2. 9.2.2 Fully Differential Operation
      3. 9.2.3 Single Supply Operation
      4. 9.2.4 Driving Analog-to-Digital Converters
      5. 9.2.5 Output Noise Performance and Measurement
      6. 9.2.6 Balanced Cable Driver
  10. 10Power Supply Recommendations
    1. 10.1 Power Supply Bypassing
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
    3. 11.3 Power Dissipation
    4. 11.4 ESD Protection
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Third-Party Products Disclaimer
    2. 12.2 Documentation Support
      1. 12.2.1 Related Documentation
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

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1 Features

  • Small-Signal Bandwidth 2.8 GHz
  • 2 VPP Large-Signal Bandwidth 1.8 GHz
  • 0.1 dB Gain Flatness 830 MHz
  • OIP3 at 150 MHz 46.5 dBm
  • HD2/HD3 at 75 MHz –96 / –97 dBc
  • Input Noise Voltage 0.9 nV/√Hz
  • Input Noise Current 11 pA/√Hz
  • Slew Rate 6200 V/μs
  • Power 260 mW
  • Typical Supply Current 52 mA
  • 14-Lead UQFN Package

2 Applications

  • Differential ADC Driver
  • Single-Ended to Differential Converter
  • High-Speed Differential Signaling
  • IF/RF and Baseband Gain Blocks
  • SAW Filter Buffer/Driver
  • Oscilloscope Probes
  • Automotive Safety Applications
  • Video Over Twisted Pair
  • Differential Line Driver

3 Description

The LMH6554 device is a high-performance fully differential amplifier designed to provide the exceptional signal fidelity and wide large-signal bandwidth necessary for driving 8- to 16-bit high-speed data acquisition systems. Using TI’s proprietary differential current mode input stage architecture, the LMH6554 has unity gain, small-signal bandwidth of 2.8 GHz and allows operation at gains greater than unity without sacrificing response flatness, bandwidth, harmonic distortion, or output noise performance.

The low-impedance differential output of the device is designed to drive ADC inputs and any intermediate filter stage. The LMH6554 delivers 16-bit linearity up to 75 MHz when driving 2-V peak-to-peak into loads as low as 200 Ω.

The LMH6554 is fabricated in TI's advanced complementary BiCMOS process and is available in a space-saving 14-lead UQFN package for higher performance.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
LMH6554 UQFN (14) 2.50 mm × 2.50 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

4 Typical Application Schematic

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