SBOS566C June   2017  – October 2018 OPA1692

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Preamplifier for 3-Wire Electret Microphones
      2.      THD + N vs Frequency (3 VRMS, 2-kΩ Load)
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin Functions: OPA1692
  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: OPA1692
    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 Distortion Reduction
      2. 7.3.2 Phase Reversal Protection
      3. 7.3.3 Electrical Overstress
    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 Capacitive Loads
      2. 8.1.2 Noise Performance
      3. 8.1.3 Basic Noise Calculations
      4. 8.1.4 EMI Rejection
      5. 8.1.5 EMIRR +IN Test Configuration
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curves
    3. 8.3 Other Application Examples
      1. 8.3.1 Two-Wire Electret Microphone Preamplifier
      2. 8.3.2 Battery-Powered Preamplifier for Professional Microphones
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
    3. 10.3 Power Dissipation
  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 DIP Adapter EVM
        3. 11.1.1.3 Universal Operational Amplifier EVM
        4. 11.1.1.4 Smart Amplifier Speaker Characterization Board Evaluation Module
        5. 11.1.1.5 TI Precision Designs
        6. 11.1.1.6 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 Resource
    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

6.6 Typical Characteristics

at TA = 25°C, VS = ±18 V, and RL = 2 kΩ (unless otherwise noted)
OPA1692 D204_SBOS566.gif
N = 1160 Mean = –139.2 µV Std. Dev. = 105.4 µV
Figure 1. Input Offset Voltage Distribution
OPA1692 D013_SBOS566.gif
Figure 3. Offset Voltage Drift Distribution
OPA1692 D207_SBOS566.gif
N = 1160 Mean = 0.07 nA Std. Dev. = 1.58 nA
Figure 5. Input Offset Current Distribution
OPA1692 D017_SBOS566.gif
Figure 7. Open-Loop Gain and Phase vs Frequency
OPA1692 D023_SBOS566.gif
Figure 9. CMRR and PSRR vs Frequency (Referred to Input)
OPA1692 C004_SBOS566.png
Figure 11. Voltage Noise vs Source Resistance
OPA1692 C007_SBOS566.png
Figure 13. Maximum Output Voltage vs Frequency
OPA1692 D022_SBOS566.gif
G = 1
Figure 15. Phase Margin vs Capacitive Load
OPA1692 D039_SBOS566.gif
G = –1 10-mV input step
Figure 17. Overshoot vs Capacitive Load
OPA1692 D028_SBOS566.gif
VOUT = 3 VRMS RL = 600 Ω 80-kHz bandwidth
Figure 19. THD + N Ratio vs Frequency
OPA1692 D019_SBOS566.gif
VOUT = 3 VRMS G = 1 80-kHz bandwidth
Figure 21. Distortion Harmonics vs Frequency
OPA1692 D024_SBOS566.gif
f = 1 kHz 80-kHz bandwidth
Figure 23. THD + N Ratio vs Output Amplitude
OPA1692 D021_SBOS566.gif
80-kHz bandwidth
Figure 25. Intermodulation Distortion vs Output Amplitude
OPA1692 D202_SBOS901.gif
f = 1 kHz VO = 3 VRMS RL = 600 Ω
Figure 27. 1-kHz Output Spectrum
OPA1692 D036_SBOS566.gif
100-pF capacitive load 10-mV input step G = 1
Figure 29. Small-Signal Step Response
OPA1692 D034_SBOS566.gif
100-pF capacitive load 10-V input step G = 1
Figure 31. Large-Signal Step Response
OPA1692 D040_SBOS566.gif
Figure 33. Settling Time
OPA1692 D015_SBOS566.gif
5 typical units
Figure 35. Input Offset Voltage vs Common-Mode Voltage
OPA1692 D012_SBOS566.gif
Figure 37. PSRR vs Temperature
OPA1692 D016_SBOS566.gif
Figure 39. Input Bias and Offset Current vs Temperature
OPA1692 D006_SBOS566.gif
VS = ±1.75 V
Figure 41. IB vs Common-Mode Voltage
OPA1692 D008_SBOS566.gif
Figure 43. Supply Current vs Supply Voltage
OPA1692 D003_SBOS566.gif
VS = ±1.75 V
Figure 45. Open-Loop Gain vs Output Voltage
OPA1692 D011_SBOS566.gif
Sinking
Figure 47. Output Voltage vs Output Current
OPA1692 D033_SBOS566.gif
Figure 49. Negative Overload Recovery
OPA1692 D031_SBOS566.gif
Figure 51. No Phase Reversal
OPA1692 D205_SBOS566.gif
N = 580 Mean = 17 µV Std. Dev. = 145.2 µV
Figure 2. Input Offset Voltage Matching (Ch. A – Ch. B)
OPA1692 D206_SBOS566.gif
N = 1160 Mean = 301.5 nA Std. Dev. = 7.03 nA
Figure 4. Input Bias Current Distribution
OPA1692 D208_SBOS566.gif
N = 1160 Mean = 664.6 µA Std. Dev. = 6.98 µA
Figure 6. Power Supply Current Distribution
OPA1692 D018_SBOS566.gif
Figure 8. Closed-Loop Gain vs Frequency
OPA1692 C006_SBOS566.png
Figure 10. Input Voltage Noise Spectral Density
OPA1692 D041_SBOS566.gif
Figure 12. 0.1-Hz to 10-Hz Voltage Noise
OPA1692 C005_SBOS566.png
Figure 14. Open-Loop Output Impedance vs Frequency
OPA1692 D038_SBOS566.gif
G = 1 10-mV input step
Figure 16. Overshoot vs Capacitive Load
OPA1692 D026_SBOS566.gif
VOUT = 3 VRMS 80-kHz bandwidth
Figure 18. THD + N Ratio vs Frequency
OPA1692 D027_SBOS566.gif
VOUT = 3 VRMS 500-kHz bandwidth
Figure 20. THD + N Ratio vs Frequency
OPA1692 D020_SBOS566.gif
VOUT = 3 VRMS G = –1 80-kHz bandwidth
Figure 22. Distortion Harmonics vs Frequency
OPA1692 D025_SBOS566.gif
f = 1 kHz RL = 600 Ω 80-kHz bandwidth
Figure 24. THD + N Ratio vs Output Amplitude
OPA1692 D029_SBOS566.gif
Figure 26. Channel Separation vs Frequency
OPA1692 D203_SBOS901.gif
f = 20 kHz VO = 3 VRMS RL = 600 Ω
Figure 28. 20-kHz Output Spectrum
OPA1692 D037_SBOS566.gif
100-pF capacitive load 10-mV input step G = –1
Figure 30. Small-Signal Step Response
OPA1692 D035_SBOS566.gif
100-pF capacitive load 10-V input step G = –1
Figure 32. Large-Signal Step Response
OPA1692 D014_SBOS566.gif
5 typical units
Figure 34. Input Offset Voltage vs Temperature
OPA1692 D004_SBOS566.gif
Figure 36. CMRR vs Temperature
OPA1692 D001_SBOS566.gif
Figure 38. Open-Loop Gain vs Temperature
OPA1692 D005_SBOS566.gif
Figure 40. IB vs Common-Mode Voltage
OPA1692 D007_SBOS566.gif
Figure 42. Supply Current vs Temperature
OPA1692 D002_SBOS566.gif
Figure 44. Open-Loop Gain vs Output Voltage
OPA1692 D010_SBOS566.gif
Sourcing
Figure 46. Output Voltage vs Output Current
OPA1692 D009_SBOS566.gif
Figure 48. Short-Circuit Current vs Temperature
OPA1692 D032_SBOS566.gif
Figure 50. Positive Overload Recovery
OPA1692 D030_SBOS566.gif
Figure 52. EMI Rejection Ratio (EMIRR)