SBOS791A June   2017  – November 2017 OPA1641-Q1 , OPA1642-Q1

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 Total Harmonic Distortion Measurements
      2. 8.1.2 Source Impedance and Distortion
      3. 8.1.3 Capacitive Load and Stability
      4. 8.1.4 Power Dissipation and Thermal Protection
      5. 8.1.5 Electrical Overstress
    2. 8.2 Typical Application
      1. 8.2.1 Single-Supply Electret Microphone Preamplifier for Speech
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curve
  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 Receiving Notification of Documentation Updates
    5. 11.5 Community Resources
    6. 11.6 Trademarks
    7. 11.7 Electrostatic Discharge Caution
    8. 11.8 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

5 Pin Configuration and Functions

OPA1641-Q1: D and DGK Packages
8-Pin SOIC and VSSOP
Top View
OPA1641-Q1 OPA1642-Q1 po_so_msop_bos451.gif
1. NC - no internal connection

Pin Functions: OPA1641-Q1

PIN I/O DESCRIPTION
NAME NO.
–IN 2 I Inverting input
+IN 3 I Noninverting input
NC 1, 5, 8 — No connection
OUT 6 O Output
V– 4 — Negative (lowest) power supply
V+ 7 — Positive (highest) power supply
OPA1642-Q1: D and DGK Packages
8-Pin SOIC and VSSOP
Top View
OPA1641-Q1 OPA1642-Q1 po_so_power_bos451.gif

Pin Functions: OPA1642-Q1

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