SBOS714 November   2014 OPA4277-EP

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 Handling 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
  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
        1. 8.2.2.1 Offset Voltage Adjustment
        2. 8.2.2.2 Input Protection
        3. 8.2.2.3 Input Bias Current Cancellation
      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 Trademarks
    2. 11.2 Electrostatic Discharge Caution
    3. 11.3 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

1 Features

  • Ultra-Low Offset Voltage: 10 μV
  • Ultra-Low Drift: ±0.1 μV/°C
  • High Open-Loop Gain: 134 dB
  • High Common-Mode Rejection: 140 dB
  • High-Power Supply Rejection: 130 dB
  • Low Bias Current: 1-nA Max
  • Wide Supply Range: ±2 to ±18 V
  • Low Quiescent Current: 800 μA/Amplifier
  • Supports Defense, Aerospace, and Medical Applications
    • Controlled Baseline
    • One Assembly and Test Site
    • One Fabrication Site
    • Available in Military (–55°C to 125°C) Temperature Range
    • Extended Product Life Cycle
    • Extended Product-Change Notification
    • Product Traceability

2 Applications

  • Transducer Amplifier
  • Bridge Amplifier
  • Temperature Measurements
  • Strain Gage Amplifier
  • Precision Integrator
  • Battery Powered Instruments
  • Test Equipment

3 Description

The OPA4277-EP precision operational amplifier replaces the industry standard OP-177. It offers improved noise, wider output voltage swing, and is twice as fast with half the quiescent current. Features include ultra-low offset voltage and drift, low bias current, high common-mode rejection, and high power supply rejection.

The OPA4277-EP operates from ±2- to ±18-V supplies with excellent performance. Unlike most operational amplifiers which are specified at only one supply voltage, the OPA4277-EP precision operational amplifier is specified for real-world applications; a single limit applies over the ±5- to ±15-V supply range. High performance is maintained as the amplifier swings to the specified limits. Because the initial offset voltage (±20-μV max) is so low, user adjustment is usually not required.

The OPA4277-EP is easy to use and free from phase inversion and overload problems found in some operational amplifiers. It is stable in unity gain and provides excellent dynamic behavior over a wide range of load conditions. The OPA4277-EP features completely independent circuitry for lowest crosstalk and freedom from interaction, even when overdriven or overloaded.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
OPA4277MDTEP SOIC (14) 3.91 mm × 8.65 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Simplified Schematic

sch_simplified_BOS714.gif