SNOS469J April   2000  – January 2015 LM8261

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 2.7 V
    6. 6.6 Electrical Characteristics 5 V
    7. 6.7 Electrical Characteristics ±15 V
    8. 6.8 Typical Characteristics
  7. 7 Application and Implementation
    1. 7.1 Block Diagram and Operational Description
      1. 7.1.1  A) Input Stage
      2. 7.1.2 B) Output Stage
    2. 7.2 Driving Capacitive Loads
    3. 7.3 Estimating the Output Voltage Swing
    4. 7.4 TFT Applications
    5. 7.5 Output Short Circuit Current and Dissipation Issues
    6. 7.6 Other Application Hints
      1. 7.6.1 LM8261 Advantages
  8. 8 Power Supply Recommendations
  9. 9 Layout
    1. 9.1 Layout Guidelines
    2. 9.2 Layout Example
  10. 10Device and Documentation Support
    1. 10.1 Documentation Support
      1. 10.1.1 Related Documentation
    2. 10.2 Trademarks
    3. 10.3 Electrostatic Discharge Caution
    4. 10.4 Glossary
  11. 11Mechanical, Packaging, and Orderable Information

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

1 Features

    • (VS = 5 V, TA = 25°C, Typical Values Unless Specified)

  • GBWP 21 MHz
  • Wide Supply Voltage Range 2.5 V to 30 V
  • Slew Rate 12 V/µs
  • Supply Current 0.97 mA
  • Cap Load Limit Unlimited
  • Output Short Circuit Current 53 mA/ −75 mA
  • ±5% Settling Time 400 ns (500 pF, 100 mVPP Step)
  • Input Common Mode Voltage 0.3 V Beyond Rails
  • Input Voltage Noise 15nV/√Hz
  • Input Current Noise 1pA/√Hz
  • THD+N < 0.05%

2 Applications

  • TFT-LCD Flat Panel VCOM Driver
  • A/D Converter Buffer
  • High Side/low Side Sensing
  • Headphone Amplifier

3 Description

The LM8261 is a Rail-to-Rail input and output Op Amp which can operate with a wide supply voltage range. This device has high output current drive, greater than Rail-to-Rail input common mode voltage range, unlimited capacitive load drive capability, and provides tested and guaranteed high speed and slew rate while requiring only 0.97 mA supply current. It is specifically designed to handle the requirements of flat panel TFT panel VCOM driver applications as well as being suitable for other low power, and medium speed applications which require ease of use and enhanced performance over existing devices.

Greater than Rail-to-Rail input common mode voltage range with 50 dB of Common Mode Rejection allows high side and low side sensing, among many applications, without concern over exceeding the range and with no compromise in accuracy. Exceptionally wide operating supply voltage range of 2.5 V to 30 V alleviates any concerns over functionality under extreme conditions and offers flexibility for use in multitude of applications. In addition, most device parameters are insensitive to power supply variations; this design enhancement is yet another step in simplifying its usage. The output stage has low distortion (0.05% THD+N) and can supply a respectable amount of current (15 mA) with minimal headroom from either rail (300 mV).

The LM8261 is offered in the space-saving SOT-23-5 package.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
LM8261 SOT-23 (5) 2.9 mm × 1.6 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Output Response with Heavy Capacitive Load

10108437.png