SNOSA35G August   2002  – July 2015 LMH6657 , LMH6658

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics, 5 V
    6. 6.6 Electrical Characteristics, ±5 V
    7. 6.7 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
      1. 7.1.1 Large Signal Behavior
    2. 7.2 Feature Description
    3. 7.3 Device Functional Modes
      1. 7.3.1 Output Phase Reversal
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Output Characteristics
        1. 8.1.1.1 Output Current Capability
        2. 8.1.1.2 Driving Capacitive Loads
        3. 8.1.1.3 Distortion
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Related Links
    3. 11.3 Community Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

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1 Features

    VS = 5 V, TA = 25°C, RL = 100 Ω (Typical Values Unless Specified)

  • −3dB BW (AV = +1) 270 MHz
  • Supply Voltage Range 3 V to 12 V
  • Slew Rate, (VS = ±5 V) 700 V/µs
  • Supply Current 6.2 mA/amp
  • Output Current +80/−90 mA
  • Input Common-Mode Volt. 0.5 V Beyond V−, 1.7 V from V+
  • Output Voltage Swing (RL = 2 kΩ) 0.8 V from Rails
  • Input Voltage Noise 11 nV/√Hz
  • Input Current Noise 2.1 pA√Hz/
  • DG Error 0.03%
  • DP Error 0.10°
  • THD (5MHz) −55 dBc
  • Settling Time (0.1%) 37ns
  • Fully Characterized for 5 V, and ±5 V
  • Output Overdrive Recovery 18 ns
  • Output Short Circuit Protected(1)
  • No Output Phase Reversal With CMVR Exceeded

2 Applications

  • CD/DVD ROM
  • ADC Buffer Amps
  • Portable Video
  • Current Sense Buffers
  • Portable Communications

    • (1) Short Circuit Test is a momentary test.
    See Note 3 under Absolute Maximum Ratings.

3 Description

The LMH6657 and LMH6658 devices are low-cost operational amplifiers that operate from a single supply with input voltage range extending below the V−. Based on easy to use voltage feedback topology and boasting fast slew rate (700 V/µs) and high speed (140 MHz GBWP), the LMH6657 (Single) and LMH6658 (dual) can be used in high speed large signal applications. These applications include instrumentation, communication devices, set-top boxes, and so forth.

With a -3dB BW of 100 MHz (AV = +2) and DG & DP of 0.03% & 0.10° respectively, the LMH6657 and LMH6658 are well suited for video applications. The output stage can typically supply 80 mA into the load with a swing of about 1 V from either rail.

For Industrial applications, the LMH6657 and LMH6658 are excellent cost-saving choices. Input referred voltage noise is low and the input voltage can extend below V− to ease amplification of low level signals that could be at or near the system ground. With low distortion and fast settling, LMH6657 and LMH6658 can provide buffering for A/D and D/A applications.

The LMH6657 and LMH6658 versatility and ease of use is extended even further by offering these high slew rate, high-speed operational amplifiers in miniature packages such as SOT-23-5, SC70, SOIC-8, and VSSOP-8.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
LMH6657 SC70 (5) 2.00 mm × 1.25 mm
SOT-23 (5) 2.90 mm × 1.60 mm
LMH6658 SOIC (8) 4.90 mm × 3.91 mm
VSSOP (8) 3.00 mm × 3.00 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Noninverting Frequency Response, Gain

LMH6657 LMH6658 20053226.gif

Noninverting Frequency Response, Phase

LMH6657 LMH6658 20053227.gif