SBOS365E June 2006  – August 2016 OPA2365 , OPA365

PRODUCTION DATA. 

  1. Features
  2. Applications
  3. Description
  4. Revision History
  5. Pin Configuration and Functions
  6. Specifications
    1. 6.1Absolute Maximum Ratings
    2. 6.2ESD Ratings
    3. 6.3Recommended Operating Conditions
    4. 6.4Thermal Information: OP365
    5. 6.5Thermal Information: OPA2365
    6. 6.6Electrical Characteristics
    7. 6.7Typical Characteristics
  7. Detailed Description
    1. 7.1Overview
    2. 7.2Functional Block Diagram
    3. 7.3Feature Description
      1. 7.3.1Rail-to-Rail Input
      2. 7.3.2Input and ESD Protection
      3. 7.3.3Capacitive Loads
      4. 7.3.4Achieving an Output Level of Zero Volts (0 V)
      5. 7.3.5Active Filtering
    4. 7.4Device Functional Modes
  8. Application and Implementation
    1. 8.1Application Information
      1. 8.1.1Basic Amplifier Configurations
    2. 8.2Typical Application
      1. 8.2.1Design Requirements
      2. 8.2.2Detailed Design Procedure
      3. 8.2.3Application Curve
    3. 8.3System Examples
      1. 8.3.1Driving an Analog-to-Digital Converter
  9. Power Supply Recommendations
  10. 10Layout
    1. 10.1Layout Guidelines
    2. 10.2Layout Example
  11. 11Device and Documentation Support
    1. 11.1Device Support
      1. 11.1.1Development Support
        1. 11.1.1.1TINA-TI™ (Free Software Download)
        2. 11.1.1.2DIP Adapter EVM
        3. 11.1.1.3Universal Op Amp EVM
        4. 11.1.1.4TI Precision Designs
        5. 11.1.1.5WEBENCH Filter Designer
    2. 11.2Documentation Support
      1. 11.2.1Related Documentation
    3. 11.3Related Links
    4. 11.4Community Resources
    5. 11.5Trademarks
    6. 11.6Electrostatic Discharge Caution
    7. 11.7Glossary
  12. 12Mechanical, Packaging, and Orderable Information

1 Features

  • Gain Bandwidth: 50 MHz
  • Zerø-Crossover Distortion Topology:
    • Excellent THD+N: 0.0004%
    • CMRR: 100 dB (Minimum)
    • Rail-to-Rail Input and Output
      • Input 100 mV Beyond Supply Rail
  • Low Noise: 4.5 nV/√Hz at 100 kHz
  • Slew Rate: 25 V/µs
  • Fast Settling: 0.3 μs to 0.01%
  • Precision:
    • Low Offset: 100 µV
    • Low Input Bias Current: 0.2 pA
  • 2.2-V to 5.5-V Operation

2 Applications

  • Signal Conditioning
  • Data Acquisition
  • Process Control
  • Active Filters
  • Test Equipment
  • Audio
  • Wideband Amplifiers

3 Description

The OPAx365 zerø-crossover series, rail-to-rail, high-performance, CMOS operational amplifiers are optimized for very low voltage, single-supply applications. Rail-to-rail input or output, low-noise (4.5 nV/√Hz) and high-speed operation (50-MHz Gain Bandwidth) make these devices ideal for driving sampling analog-to-digital converters (ADCs). Applications include audio, signal conditioning, and sensor amplification. The OPA365 family of op amps are also well-suited for cell phone power amplifier control loops.

Special features include an excellent common-mode rejection ratio (CMRR), no input stage crossover distortion, high input impedance, and rail-to-rail input and output swing. The input common-mode range includes both the negative and positive supplies. The output voltage swing is within 10 mV of the rails.

The OPA365 (single version) is available in the micro-size SOT23-5 (SOT-5) and SOIC-8 packages. The OPA2365 (dual version) is offered in the SOIC-8 package. All versions are specified for operation from −40°C to +125°C. Single and dual versions have identical specifications for maximum design flexibility.

Device Information(1)

PART NUMBERPACKAGEBODY SIZE (NOM)
OPA365, OPA2365SOIC (8)4.90 mm × 3.91 mm
SOT-23 (5)2.90 mm × 1.60 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Fast Settling Peak Detector

OPA365 OPA2365 fast_settling_peak_detector_sbos365.gif