Datasheet OPA4383 (Texas Instruments)
| Manufacturer | Texas Instruments |
| Description | Quad, zero-drift, micropower (65μA), high speed-to-power ratio (2.5MHz) RRIO operational amplifier |
| Pages / Page | 36 / 1 — OPA383. , OPA2383. , OPA4383. OPAx383 Low-Power, High-Precision, 2.5MHz, … |
| File Format / Size | PDF / 2.0 Mb |
| Document Language | English |
OPA383. , OPA2383. , OPA4383. OPAx383 Low-Power, High-Precision, 2.5MHz, Zero-Drift Op Amp. 1 Features. 3 Description
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OPA383 , OPA2383 , OPA4383
SBOSAK7B – DECEMBER 2024 – REVISED JUNE 2025
OPAx383 Low-Power, High-Precision, 2.5MHz, Zero-Drift Op Amp 1 Features 3 Description
• Ultra-low offset voltage: ±5µV (maximum) The OPA383, OPA2383, and OPA4383 (OPAx383) • Zero drift: ±0.025µV/°C family of precision amplifiers offers state-of-the-art • Low-input bias current: 62pA (maximum) performance. With zero-drift technology, the OPAx383 • Low noise: 32nV√Hz at 1kHz offset voltage and offset drift provide unparalleled • No 1/f noise: 650nVPP (0.1Hz to 10Hz) long-term stability. With a ultra-low 65µA of quiescent • Common-mode input range ±100mV beyond current, the OPAx383 are able to achieve 2.5MHz supply rails of bandwidth, a broadband noise of 32nV/√Hz, and • Gain bandwidth: 2.5MHz a 1/f noise at 650nVPP. These specifications are • Quiescent current: 65μA per amplifier crucial to achieve extremely-high precision and no • Single supply: 1.7V to 5.5V degradation of linearity in 16-bit to 24-bit analog • Dual supply: ±0.85V to ±2.75V to digital converters (ADCs). The OPAx383 feature • EMI and RFI filtered inputs flat bias current over temperature; therefore, little to no calibration is needed in high input impedance
2 Applications
applications over temperature. • Electronic thermometer All versions are specified over the industrial • Weigh scale temperature range of –40°C to +125°C. • Temperature transmitter • Ventilators
Device Information
• Data acquisition (DAQ)
PART NUMBER CHANNEL COUNT PACKAGE
(1)
PACKAGE SIZE
• Semiconductor test DBV (SOT-23, 5) 2.9mm × 2.8mm OPA383 (2) Single • Lab and field instrumentation DCK (SC70, 5)(2) 2.0mm × 2.1mm • Merchant network and server PSU D (SOIC, 8)(2) 4.9mm × 6.0mm OPA2383 Dual • Analog input module DGK (VSSOP, 8) 3.0mm × 4.9mm • Pressure transmitter OPA4383 (2) Quad PW (TSSOP, 14)(2) 5.0mm × 6.4mm (1) For more information, see Section 10. (2) Preview information (not Production Data). 3.3V REF35250 OPA383 + – IREF OPA383 + – OPA383 + – – + OPA383 OPA383 + – V
Ultra-Low Input Offset Voltage
REF ADS8887 – + OPA383
The OPA383 as a Bridge Sensor Front End
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. UNLESS OTHERWISE NOTED, this document contains PRODUCTION DATA. Document Outline 1 Features 2 Applications 3 Description Table of Contents 4 Pin Configuration and Functions 5 Specifications 5.1 Absolute Maximum Ratings 5.2 ESD Ratings 5.3 Recommended Operating Conditions 5.4 Thermal Information OPA383 5.5 Thermal Information OPA2383 5.6 Electrical Characteristics 5.7 Typical Characteristics 6 Detailed Description 6.1 Overview 6.2 Functional Block Diagram 6.3 Feature Description 6.3.1 Input Bias Current 6.3.2 EMI Susceptibility and Input Filtering 6.4 Device Functional Modes 7 Application and Implementation 7.1 Application Information 7.1.1 Zero-Drift Clocking 7.2 Typical Applications 7.2.1 Bidirectional Current Sensing 7.2.1.1 Design Requirements 7.2.1.2 Detailed Design Procedure 7.2.1.3 Application Curve 7.2.2 Bridge Sensor Measurement 7.3 Power Supply Recommendations 7.4 Layout 7.4.1 Layout Guidelines 7.4.2 Layout Example 8 Device and Documentation Support 8.1 Device Support 8.1.1 Development Support 8.1.1.1 PSpice® for TI 8.1.1.2 TINA-TI™ Simulation Software (Free Download) 8.2 Receiving Notification of Documentation Updates 8.3 Support Resources 8.4 Trademarks 8.5 Electrostatic Discharge Caution 8.6 Glossary 9 Revision History 10 Mechanical, Packaging, and Orderable Information
OPA383 , OPA2383 , OPA4383
SBOSAK7B – DECEMBER 2024 – REVISED JUNE 2025
OPAx383 Low-Power, High-Precision, 2.5MHz, Zero-Drift Op Amp 1 Features 3 Description
• Ultra-low offset voltage: ±5µV (maximum) The OPA383, OPA2383, and OPA4383 (OPAx383) • Zero drift: ±0.025µV/°C family of precision amplifiers offers state-of-the-art • Low-input bias current: 62pA (maximum) performance. With zero-drift technology, the OPAx383 • Low noise: 32nV√Hz at 1kHz offset voltage and offset drift provide unparalleled • No 1/f noise: 650nVPP (0.1Hz to 10Hz) long-term stability. With a ultra-low 65µA of quiescent • Common-mode input range ±100mV beyond current, the OPAx383 are able to achieve 2.5MHz supply rails of bandwidth, a broadband noise of 32nV/√Hz, and • Gain bandwidth: 2.5MHz a 1/f noise at 650nVPP. These specifications are • Quiescent current: 65μA per amplifier crucial to achieve extremely-high precision and no • Single supply: 1.7V to 5.5V degradation of linearity in 16-bit to 24-bit analog • Dual supply: ±0.85V to ±2.75V to digital converters (ADCs). The OPAx383 feature • EMI and RFI filtered inputs flat bias current over temperature; therefore, little to no calibration is needed in high input impedance
2 Applications
applications over temperature. • Electronic thermometer All versions are specified over the industrial • Weigh scale temperature range of –40°C to +125°C. • Temperature transmitter • Ventilators
Device Information
• Data acquisition (DAQ)
PART NUMBER CHANNEL COUNT PACKAGE
(1)
PACKAGE SIZE
• Semiconductor test DBV (SOT-23, 5) 2.9mm × 2.8mm OPA383 (2) Single • Lab and field instrumentation DCK (SC70, 5)(2) 2.0mm × 2.1mm • Merchant network and server PSU D (SOIC, 8)(2) 4.9mm × 6.0mm OPA2383 Dual • Analog input module DGK (VSSOP, 8) 3.0mm × 4.9mm • Pressure transmitter OPA4383 (2) Quad PW (TSSOP, 14)(2) 5.0mm × 6.4mm (1) For more information, see Section 10. (2) Preview information (not Production Data). 3.3V REF35250 OPA383 + – IREF OPA383 + – OPA383 + – – + OPA383 OPA383 + – V
Ultra-Low Input Offset Voltage
REF ADS8887 – + OPA383
The OPA383 as a Bridge Sensor Front End
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. UNLESS OTHERWISE NOTED, this document contains PRODUCTION DATA. Document Outline 1 Features 2 Applications 3 Description Table of Contents 4 Pin Configuration and Functions 5 Specifications 5.1 Absolute Maximum Ratings 5.2 ESD Ratings 5.3 Recommended Operating Conditions 5.4 Thermal Information OPA383 5.5 Thermal Information OPA2383 5.6 Electrical Characteristics 5.7 Typical Characteristics 6 Detailed Description 6.1 Overview 6.2 Functional Block Diagram 6.3 Feature Description 6.3.1 Input Bias Current 6.3.2 EMI Susceptibility and Input Filtering 6.4 Device Functional Modes 7 Application and Implementation 7.1 Application Information 7.1.1 Zero-Drift Clocking 7.2 Typical Applications 7.2.1 Bidirectional Current Sensing 7.2.1.1 Design Requirements 7.2.1.2 Detailed Design Procedure 7.2.1.3 Application Curve 7.2.2 Bridge Sensor Measurement 7.3 Power Supply Recommendations 7.4 Layout 7.4.1 Layout Guidelines 7.4.2 Layout Example 8 Device and Documentation Support 8.1 Device Support 8.1.1 Development Support 8.1.1.1 PSpice® for TI 8.1.1.2 TINA-TI™ Simulation Software (Free Download) 8.2 Receiving Notification of Documentation Updates 8.3 Support Resources 8.4 Trademarks 8.5 Electrostatic Discharge Caution 8.6 Glossary 9 Revision History 10 Mechanical, Packaging, and Orderable Information