SNOSD65 June   2017 LMH6644-MIL

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Description (continued)
  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 3-V Electrical Characteristics
    6. 7.6 5-V Electrical Characteristics
    7. 7.7 ±5-V Electrical Characteristics
    8. 7.8 Typical Performance Characteristics
  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 Application
      1. 9.2.1 Design Requirements
        1. 9.2.1.1 Input and Output Topology
        2. 9.2.1.2 Single-Supply, Low-Power Photodiode Amplifier
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Receiving Notification of Documentation Updates
    2. 12.2 Community Resources
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
  • Y|0
Thermal pad, mechanical data (Package|Pins)
Orderable Information

1 Features

    (VS = ±5 V, TA = 25°C, RL = 2 kΩ, AV = +1. Typical Values Unless Specified).

  • –3 dB BW (AV = +1) 130 MHz
  • Supply Voltage Range 2.7 V to 12.8 V
  • Slew Rate, (AV = –1) 130 V/µs(1)
  • Supply Current (no load) 2.7 mA/amp 
  • Output Short Circuit Current +115 mA to 145 mA
  • Linear Output Current ±75 mA
  • Input Common Mode Voltage 0.5 V Beyond V–, 1 V from V+
  • Output Voltage Swing 40 mV from Rails 
  • Input Voltage Noise (100 kHz) 17 nV/√Hz
  • Input Current Noise (100 kHz) 0.9 pA/√Hz
  • THD (5 MHz, RL = 2 kΩ, VO = 2 VPP, AV = +2) –62 dBc
  • Settling Time 68 ns
  • Fully Characterized for 3 V, 5 V, and ±5 V
  • Overdrive Recovery 100 ns
  • Output Short Circuit Protected(2)
  • No Output Phase Reversal with CMVR Exceeded
    • (1) Slew rate is the average of the rising and falling slew rates.
    (2) Output short circuit duration is infinite for VS < 6 V at room temperature and below. For VS > 6 V, allowable short circuit duration is 1.5 ms.

2 Applications

  • Active Filters
  • CD/DVD ROM
  • ADC Buffer Amp
  • Portable Video
  • Current Sense Buffer

3 Description

The LMH6644-MIL true single supply voltage feedback amplifier offers high speed (130 MHz), low distortion (–62 dBc), and exceptionally high-output current (approximately 75 mA) at low cost and with reduced power consumption when compared against existing devices with similar performance.

Input common mode voltage range extends to 0.5 V below V– and 1 V from V+. Output voltage range extends to within 40 mV of either supply rail, allowing wide dynamic range especially desirable in low-voltage applications. The output stage is capable of approximately 75 mA in order to drive heavy loads. Fast output slew rate (130 V/µs) ensures large peak-to-peak output swings can be maintained even at higher speeds, resulting in exceptional full power bandwidth of 40 MHz with a 3-V supply. These characteristics, along with low cost, are ideal features for a multitude of industrial and commercial applications.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
LMH6644-MIL SOIC (14) 8.64 mm × 3.91 mm
TSSOP (14) 5.00 mm × 4.40 mm
  1. For all available packages, see the orderable addendum at the end of the datasheet.

Closed Loop Gain vs Frequency
for Various Supplies

LMH6644-MIL First_page_plot_freq_vs_gain.gif

4 Revision History

DATE REVISION NOTES
June 2017 * Initial release.