SBOS450C July 2009  – August 2014 OPA1611 , OPA1612

PRODUCTION DATA. 

  1. Features
  2. Applications
  3. Description
  4. Revision History
  5. Pin Configuration and Functions
  6. Specifications
    1. 6.1Absolute Maximum Ratings
    2. 6.2Handling Ratings
    3. 6.3Recommended Operating Conditions
    4. 6.4 Electrical Characteristics: VS = ±2.25 V to ±18 V
    5. 6.5Typical Characteristics
  7. Detailed Description
    1. 7.1Overview
    2. 7.2Functional Block Diagram
    3. 7.3Feature Description
      1. 7.3.1Power Dissipation
      2. 7.3.2Electrical Overstress
      3. 7.3.3Operating Voltage
      4. 7.3.4Input Protection
  8. Application and Implementation
    1. 8.1Application Information
    2. 8.2Noise Performance
      1. 8.2.1Detailed Design Procedure
      2. 8.2.2Application Curve
      3. 8.2.3Basic Noise Calculations
    3. 8.3Total Harmonic Distortion Measurements
    4. 8.4Capacitive Loads
    5. 8.5Application Circuit
  9. Power-Supply Recommendations
  10. 10Layout
    1. 10.1Layout Guidelines
    2. 10.2Layout Example
  11. 11Device and Documentation Support
    1. 11.1Documentation Support
      1. 11.1.1Related Documentation
    2. 11.2Related Links
    3. 11.3Trademarks
    4. 11.4Electrostatic Discharge Caution
    5. 11.5Glossary
  12. 12Mechanical, Packaging, and Orderable Information

1 Features

  • Superior Sound Quality
  • Ultralow Noise: 1.1 nV/√Hz at 1 kHz
  • Ultralow Distortion:
    0.000015% at 1 kHz
  • High Slew Rate: 27 V/μs
  • Wide Bandwidth: 40 MHz (G = +1)
  • High Open-Loop Gain: 130 dB
  • Unity Gain Stable
  • Low Quiescent Current:
    3.6 mA per Channel
  • Rail-to-Rail Output
  • Wide Supply Range: ±2.25 V to ±18 V
  • Single and Dual Versions Available

2 Applications

  • Professional Audio Equipment
  • Microphone Preamplifiers
  • Analog and Digital Mixing Consoles
  • Broadcast Studio Equipment
  • Audio Test And Measurement
  • High-End A/V Receivers

3 Description

The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low
1.1-nV/√Hz noise density with an ultralow distortion of 0.000015% at 1 kHz. The OPA1611 and OPA1612 offer rail-to-rail output swing to within 600 mV with a 2-kΩ load, which increases headroom and maximizes dynamic range. These devices also have a high output drive capability of ±30 mA.

These devices operate over a very wide supply range of ±2.25 V to ±18 V, on only 3.6 mA of supply current per channel. The OPA1611 and OPA1612 op amps are unity-gain stable and provide excellent dynamic behavior over a wide range of load conditions.

The dual version features completely independent circuitry for lowest crosstalk and freedom from interactions between channels, even when overdriven or overloaded.

Both the OPA1611 and OPA1612 are available in SOIC-8 packages and the OPA1612 is available in SON-8. These devices are specified from –40°C to +85°C.

Device Information(1)

PART NUMBERPACKAGEBODY SIZE (NOM)
OPA1611SOIC (8)4.90 mm × 3.91 mm
OPA1612SOIC (8)4.90 mm × 3.91 mm
SON (8)3.00 mm × 3.00 mm
  1. For all available packages, see the orderable addendum at the end of the datasheet.

THD+N Ratio vs Output Amplitude

tc_thdn_vout_amp_bos450.gif

Functional Block Diagram

pg1_fbd_bos450.gif