SNOS986E December 2001  – July 2014 LMH6622

PRODUCTION DATA. 

  1. Features
  2. Applications
  3. Description
  4. Revision History
  5. Pin Configuration and Functions
  6. Specifications
    1. 6.1Absolute Maximum Ratings
    2. 6.2Handling Ratings
    3. 6.3Recommended Operating Conditions
    4. 6.4Thermal Information
    5. 6.5±6 V Electrical Characteristics
    6. 6.6±2.5 V Electrical Characteristics
    7. 6.7Typical Performance Characteristics
  7. Parameter Measurement Information
    1. 7.1Test Circuits
  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. 9.1DSL Receive Channel Applications
    2. 9.2Receive Channel Noise Calculation
    3. 9.3Differential Analog-to-Digital Driver
    4. 9.4Typical Application
      1. 9.4.1Design Requirements
      2. 9.4.2Detailed Design Procedure
      3. 9.4.3Application Curves
  10. 10Power Supply Recommendations
    1. 10.1Driving Capacitive Load
  11. 11Layout
    1. 11.1Layout Guidelines
      1. 11.1.1Circuit Layout Considerations
    2. 11.2Layout Examples
      1. 11.2.1SOIC Layout Example
      2. 11.2.2VSSOP Layout Example
  12. 12Device and Documentation Support
    1. 12.1Trademarks
    2. 12.2Electrostatic Discharge Caution
    3. 12.3Glossary
  13. 13Mechanical, Packaging, and Orderable Information

1 Features

  • VS = ±6 V, TA = 25°C, Typical Values Unless Specified
  • Bandwidth (AV = +2) 160 MHz
  • Supply Voltage Range ±2.5 V to ±6 V;
    + 5 V to +12
  • Slew Rate 85V/μs
  • Supply Current 4.3 mA/amp
  • Input Common Mode Voltage −4.75 V to +5.7 V
  • Output Voltage Swing (RL = 100 Ω) ±4.6 V
  • Input Voltage Noise 1.6 nV/√Hz
  • Input Current Noise 1.5 pA/√Hz
  • Linear Output Current 90 mA
  • Excellent Harmonic Distortion 90 dBc

2 Applications

  • xDSL Receiver
  • Low Noise Instrumentation Front End
  • Ultrasound Preamp
  • Active Filters
  • Cellphone Basestation

3 Description

The LMH6622 is a dual high speed voltage feedback operational amplifier specifically optimized for low noise. A voltage noise specification of 1.6nV/√Hz, a current noise specification 1.5pA/√Hz, a bandwidth of 160 MHz, and a harmonic distortion specification that exceeds 90 dBc combine to make the LMH6622 an ideal choice for the receive channel amplifier in ADSL, VDSL, or other xDSL designs. The LMH6622 operates from ±2.5 V to ±6 V in dual supply mode and from +5 V to +12 V in single supply configuration. The LMH6622 is stable for AV ≥ 2 or AV ≤ −1. The fabrication of the LMH6622 on TI's advanced VIP10 process enables excellent (160 MHz) bandwidth at a current consumption of only 4.3 mA/amplifier. Packages for this dual amplifier are the 8-lead SOIC and the 8-lead VSSOP.

Device Information(1)

PART NUMBERPACKAGEBODY SIZE (NOM)
LMH6622SOIC (8)4.90 mm × 3.91 mm
LMH6622VSSOP (8)3.00 mm × 3.00 mm
  1. For all available packages, see the orderable addendum at the end of the datasheet.

XDSL Analog Front End

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