SBOS484D December   2009  – April 2016 OPA1641 , OPA1642 , OPA1644

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
    6. 6.6 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Phase Reversal Protection
      2. 7.3.2 Output Current Limit
      3. 7.3.3 EMI Rejection Ratio (EMIRR)
        1. 7.3.3.1 EMIRR IN+ Test Configuration
    4. 7.4 Device Functional Modes
      1. 7.4.1 Operating Voltage
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Noise Performance
      2. 8.1.2 Basic Noise Calculations
      3. 8.1.3 Total Harmonic Distortion Measurements
      4. 8.1.4 Source Impedance and Distortion
      5. 8.1.5 Capacitive Load and Stability
      6. 8.1.6 Power Dissipation and Thermal Protection
      7. 8.1.7 Electrical Overstress
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curves
  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 Device Support
      1. 11.1.1 Development Support
        1. 11.1.1.1 TINA-TI (Free Software Download)
        2. 11.1.1.2 TI Precision Designs
        3. 11.1.1.3 WEBENCH® Filter Designer
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Related Links
    4. 11.4 Community Resources
    5. 11.5 Trademarks
    6. 11.6 Electrostatic Discharge Caution
    7. 11.7 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

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5 Pin Configuration and Functions

OPA1641: D and DGK Packages
8-Pin SOIC and VSSOP
Top View
OPA1641 OPA1642 OPA1644 po_so_msop_bos451.gif

Pin Functions: OPA1641

PIN I/O DESCRIPTION
NO. NAME
1 NC — No connection
2 –IN I Inverting input
3 +IN I Noninverting input
4 V– — Negative (lowest) power supply
5 NC — No connection
6 OUT O Output
7 V+ — Positive (highest) power supply
8 NC — No connection
OPA1642: D and DGK Packages
8-Pin SOIC and VSSOP
Top View
OPA1641 OPA1642 OPA1644 po_so_power_bos451.gif

Pin Functions: OPA1642

PIN I/O DESCRIPTION
NO. NAME
1 OUT A O Output, channel A
2 –IN A I Inverting input, channel A
3 +IN A I Noninverting input, channel A
4 V– — Negative (lowest) power supply
5 +IN B I Noninverting input, channel B
6 –IN B I Inverting input, channel B
7 OUT B O Output, channel B
8 V+ — Positive (highest) power supply
OPA1644: D and PW Packages
14-Pin SOIC and TSSOP
Top View
OPA1641 OPA1642 OPA1644 po_so14_bos461.gif

Pin Functions: OPA1644

PIN I/O DESCRIPTION
NO. NAME
1 OUT A O Output, channel A
2 –IN A I Inverting input, channel A
3 +IN A I Noninverting input, channel A
4 V+ — Positive (highest) power supply
5 +IN B I Noninverting input, channel B
6 –IN B I Inverting input, channel B
7 OUT B O Output, channel B
8 OUT C O Output, channel C
9 –IN C I Inverting input, channel C
10 +IN C I Noninverting input, channel C
11 V– — Negative (lowest) power supply
12 +IN D I Noninverting input, channel D
13 –IN D I Inverting input, channel D
14 OUT D O Output, channel D