SBOSAG6B November   2023  – October 2024 OPA2994-Q1 , OPA994-Q1

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information for Single Channel
    5. 5.5 Thermal Information for Dual Channel
    6. 5.6 Electrical Characteristics
    7. 5.7 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Unlimited Capacitive Load Drive
      2. 6.3.2 Common-Mode Voltage Range
      3. 6.3.3 Phase Reversal Protection
      4. 6.3.4 Electrical Overstress
      5. 6.3.5 Overload Recovery
      6. 6.3.6 Typical Specifications and Distributions
    4. 6.4 Device Functional Modes
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Applications
      1. 7.2.1 Low-Side Current Measurement
        1. 7.2.1.1 Design Requirements
        2. 7.2.1.2 Detailed Design Procedure
        3. 7.2.1.3 Application Curve
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Development Support
        1. 8.1.1.1 TINA-TI (Free Software Download)
    2. 8.2 Documentation Support
      1. 8.2.1 Related Documentation
    3. 8.3 Receiving Notification of Documentation Updates
    4. 8.4 Support Resources
    5. 8.5 Trademarks
    6. 8.6 Electrostatic Discharge Caution
    7. 8.7 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

Package Options

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

3 Description

The OPAx994-Q1 family (OPA994-Q1 and OPA2994-Q1) is a family of high voltage (32V) rail-to-rail input and output (RRIO) operational amplifiers. These devices offer excellent AC performance, including a wide unity gain bandwidth of 24MHz and a high slew rate of 35V/μs, while only requiring a quiescent current of 1.35mA per channel.

The OPAx994-Q1 family was designed to maintain stability across a wide range of capacitive loads. For example, OPAx994-Q1 is able to achieve a phase margin of 50 degrees when driving large capacitive loads of 10μF with a load resistance of 1MΩ. The OPAx994-Q1 is designed with compensation architectures that mitigate sustained ringing for large capacitive loads. This allows for reliable performance and ease of design for systems that have large, varying, or unknown capacitive loads.

These devices also offer excellent DC precision, including a high short-circuit output current of 125mA/channel, low offset voltage (±350µV, typical), low offset drift (±2.5µV/°C, typical), and high CMRR of 125dB for high voltage operation within the main input pair. This makes the OPAx994-Q1 a flexible, robust, and high-performance op amp for high-voltage automotive applications.

Device Information
PART NUMBER(1) CHANNEL COUNT PACKAGE PACKAGE SIZE (3)
OPA994-Q1 Single DBV (SOT-23, 5) 2.9mm × 2.8mm
OPA2994-Q1 Dual D (SOIC, 8) 4.9mm × 6mm
DGK (VSSOP, 8)(2) 3mm × 4.9mm
(1) For more information, see Section 10.
(2) This package is preview only.
(3) The package size (length × width) is a nominal value and includes pins, where applicable.
OPA994-Q1 OPA2994-Q1 OPAx994-Q1 in Electric Vehicle Service Equipment (EVSE) Ground-Fault Circuit Interrupter (GFCI) Fault Detection and Test Circuit OPAx994-Q1 in Electric Vehicle Service Equipment (EVSE) Ground-Fault Circuit Interrupter (GFCI) Fault Detection and Test Circuit