SNOSB30P October 2008  – January 2015 LMH6554

PRODUCTION DATA. 

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

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 NUMBERPACKAGEBODY SIZE (NOM)
LMH6554UQFN (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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