SBOS165A September   2000  – October 2015 OPA627 , OPA637

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 Offset Voltage Adjustment
      2. 7.3.2 Noise Performance
      3. 7.3.3 Input Bias Current
      4. 7.3.4 Phase-Reversal Protection
      5. 7.3.5 Output Overload
      6. 7.3.6 Capacitive Loads
      7. 7.3.7 Input Protection
      8. 7.3.8 EMI Rejection Ratio (EMIRR)
        1. 7.3.8.1 EMIRR IN+ Test Configuration
    4. 7.4 Settling Time
    5. 7.5 Device Functional Modes
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 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
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Related Links
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

パッケージ・オプション

メカニカル・データ（パッケージ｜ピン）
サーマルパッド・メカニカル・データ
発注情報

1 Features

  • Very Low Noise: 4.5 nV/√Hz at 10 kHz
  • Fast Settling Time:
    • OPA627—550 ns to 0.01%
    • OPA637—450 ns to 0.01%
  • Low VOS: 100-µV maximum
  • Low Drift: 0.8-µV/°C maximum
  • Low IB: 5-pA maximum
  • OPA627: Unity-Gain Stable
  • OPA637: Stable in Gain ≥ 5

2 Applications

  • Precision Instrumentation
  • Fast Data Acquisition
  • DAC Output Amplifier
  • Optoelectronics
  • Sonar, Ultrasound
  • High-Impedance Sensor Amps
  • High-Performance Audio Circuitry
  • Active Filters

3 Description

The OPA6x7 Difet® operational amplifiers provide a new level of performance in a precision FET operational amplifier. When compared to the popular OPA111 operational amplifier, the OPA6x7 has lower noise, lower offset voltage, and higher speed. The OPA6x7 is useful in a broad range of precision and high speed analog circuitry.

The OPA6x7 is fabricated on a high-speed, dielectrically-isolated complementary NPN/PNP process. It operates over a wide range of power supply voltage of ±4.5 V to ±18 V. Laser-trimmed Difet input circuitry provides high accuracy and low-noise performance comparable with the best bipolar-input operational amplifiers.

High frequency complementary transistors allow increased circuit bandwidth, attaining dynamic performance not possible with previous precision FET operational amplifiers. The OPA627 is unity-gain stable. The OPA637 is stable in gains equal to or greater than five.

Difet fabrication achieves extremely low input bias currents without compromising input voltage noise performance. Low input bias current is maintained over a wide input common-mode voltage range with unique cascode circuitry.

The OPA6x7 is available in plastic PDIP, SOIC, and metal TO-99 packages. Industrial and military temperature range models are available.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
OPA627
OPA637		 SOIC (8) 3.91 mm × 4.9 mm
PDIP (8) 6.35 mm × 9.81 mm
TO-99 (8) 8.95 mm (metal can diameter)
  1. For all available packages, see the orderable addendum at the end of the data sheet.

OPA627 Simplified Schematic

OPA627 OPA637 sbos165_sch.gif