link to page 1 OPA186, OPA2186, OPA4186 SBOS968C – JUNE 2022 – REVISED JULY 2023 OPAx186 Precision, Rail-to-Rail Input/Output, 24-V, Zero-Drift Operational Amplifiers1 Features3 Description • High precision: The OPA186, OPA2186, and OPA4186 (OPAx186) – Offset drift: 0.01 μV/°C are low-power, 24-V, rail-to-rail input and output, zero- – Low offset voltage: 1 μV drift operational amplifiers (op amps). These op amps • Low quiescent current: 90 µA feature only 10 µV of offset voltage (maximum) and • Excellent dynamic performance: 0.04 µV/°C of offset voltage drift over temperature – Gain bandwidth: 750 kHz (maximum). These devices are a great choice for – Slew rate: 0.35 V/µs precision instrumentation, signal measurement, and • Robust design: active-filtering applications. – RFI/EMI filtered inputs The low quiescent current consumption of 90 μA • Rail-to-rail input/output makes the OPAx186 an excellent option for power- • Supply range: 4.5 V to 24 V sensitive applications, such as battery-powered • Temperature: –40°C to +125°C instrumentation and portable systems. 2 Applications Moreover, the high common-mode architecture along • PC PSU and game console unit with low offset voltage allows for high-side current • Merchant DC/DC shunt monitoring at the positive rail. These devices • Flow transmitter also provide robust ESD protection during shipment, • Pressure transmitter handling, and assembly. • Merchant battery charger Device Information • Electricity meter PART NUMBERCHANNELSPACKAGE (1) D (SOIC, 8) OPA186 Single DBV (SOT-23, 5) D (SOIC, 8) OPA2186 Dual DDF (SOT-23, 8) OPA4186 Quad D (SOIC, 14) (1) For all available packages, see the package option addendum at the end of the data sheet. RS 4 3 6 V to 24 V V) (µ 2 age 1 0 Microcontroller set Volt -1 Off Battery / -2 Power OPAx186 ADC Supply -3 + 0 V to 5 V -4 Input-referred -5 -6 High-Side Current Shunt Monitor Application -12.5 -10 -7.5 -5 -2.5 0 2.5 5 7.5 10 12.5 Input Common-mode Voltage (V) VOS vs Input Common Mode Voltage An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. Document Outline 1 Features 2 Applications 3 Description Table of Contents 4 Revision History 5 Pin Configuration and Functions 6 Specifications 6.1 Absolute Maximum Ratings 6.2 ESD Ratings 6.3 Recommended Operating Conditions 6.4 Thermal Information: OPA186 6.5 Thermal Information: OPA2186 6.6 Thermal Information: OPA4186 6.7 Electrical Characteristics 6.8 Typical Characteristics 7 Detailed Description 7.1 Overview 7.2 Functional Block Diagram 7.3 Feature Description 7.3.1 Rail-to-Rail Inputs 7.3.2 Phase-Reversal Protection 7.3.3 Input Bias Current Clock Feedthrough 7.3.4 EMI Rejection 7.3.4.1 EMIRR +IN Test Configuration 7.3.5 Electrical Overstress 7.3.6 MUX-Friendly Inputs 7.4 Device Functional Modes 8 Application and Implementation 8.1 Application Information 8.1.1 Basic Noise Calculations 8.2 Typical Applications 8.2.1 High-Side Current Sensing 8.2.1.1 Design Requirements 8.2.1.2 Detailed Design Procedure 8.2.1.3 Application Curve 8.2.2 Bridge Amplifier 8.3 Power Supply Recommendations 8.4 Layout 8.4.1 Layout Guidelines 8.4.2 Layout Example 9 Device and Documentation Support 9.1 Device Support 9.1.1 Development Support 9.1.1.1 PSpice® for TI 9.1.1.2 TINA-TI™ Simulation Software (Free Download) 9.2 Documentation Support 9.2.1 Related Documentation 9.3 Receiving Notification of Documentation Updates 9.4 Support Resources 9.5 Trademarks 9.6 Electrostatic Discharge Caution 9.7 Glossary 10 Mechanical, Packaging, and Orderable Information
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