Datasheet OPA2333, OPA333 (Texas Instruments)

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OPA333, OPA2333
SBOS351E – MARCH 2006 – REVISED DECEMBER 2015
OPAx333 1.8-V, micro Power, CMOS Operational Amplifiers, Zero-Drift Series 1 Features 3 Description
The OPAx333 series of CMOS operational amplifiers • Low Offset Voltage: 10 μV (Maximum) 1 use a proprietary auto-calibration technique to • Zero Drift: 0.05 μV/°C (Maximum) simultaneously provide very low offset voltage • 0.01-Hz to 10-Hz Noise: 1.1 μVPP (10 μV, maximum) and near-zero drift over time and • Quiescent Current: 17 μA temperature. These miniature, high-precision, low quiescent current amplifiers offer high-impedance • Single-Supply Operation inputs that have a common-mode range 100 mV • Supply Voltage: 1.8 V to 5.5 V beyond the rails, and rail-to-rail output that swings • Rail-to-Rail Input/Output within 50 mV of the rails. Single or dual supplies as low as 1.8 V (±0.9 V) and up to 5.5 V (±2.75 V) can • microSize Packages: SC70 and SOT23 be used. These devices are optimized for low- voltage, single-supply operation.
2 Applications
The OPAx333 family offers excellent CMRR without • Transducers the crossover associated with traditional • Temperature Measurements complementary input stages. This design results in • Electronic Scales superior performance for driving analog-to-digital converters (ADCs) without degradation of differential • Medical Instrumentation linearity. • Battery-Powered Instruments The OPA333 (single version) is available in the 5-pin • Handheld Test Equipment SOT-23, SOT, and 8-pin SOIC packages, while the OPA2333 (dual version) is available in the 8-pin VSON, SOIC, and VSSOP packages. All versions are specified for operation from –40°C to 125°C.
Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM)
SOT-23 (5) 2.90 mm × 1.60 mm OPA333 SOT (5) 2.00 mm x 1.25 mm SOIC (8) 4.90 mm × 3.90 mm VSON (8) 3.00 mm × 3.00 mm OPA2333 SOIC (8) 4.90 mm × 3.90 mm VSSOP (8) 3.00 mm × 3.00 mm (1) For all available packages, see the orderable addendum at the end of the data sheet.
0.1-Hz to 10-Hz Noise OPAx333 Pinout Diagrams OPA333 OPA333
OUT 1 5 V+ +IN 1 5 V+ V 2 - V 2 - +IN 3 4 -IN 3 4 OUT -IN 500 nV/div SOT23-5 SC70-5
OPA2333
OUT A 1 8 V+ Exposed 2 Thermal 7 OUT B -IN A 1 s/div Die Pad +IN A 3 on 6 -IN B Underside V 4 5 +IN B - DFN-8 (SON-8) 1 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: OPA333 6.5 Thermal Information: OPA2333 6.6 Electrical Characteristics 6.7 Typical Characteristics 7 Detailed Description 7.1 Overview 7.2 Functional Block Diagram 7.3 Feature Description 7.3.1 Operating Voltage 7.3.2 Input Voltage 7.3.3 Internal Offset Correction 7.3.4 Achieving Output Swing to the Op Amp Negative Rail 7.3.5 DFN Package 7.4 Device Functional Modes 8 Application and Implementation 8.1 Application Information 8.2 Typical Applications 8.2.1 High-Side Voltage-to-Current (V-I) Converter 8.2.1.1 Design Requirements 8.2.1.2 Detailed Design Procedure 8.2.1.3 Application Curve 8.2.2 Precision, Low-Level Voltage-to-Current (V-I) Converter 8.2.2.1 Design Requirements 8.2.2.2 Detailed Design Procedure 8.2.2.3 Application Curves 8.2.3 Composite Amplifier 8.2.3.1 Design Requirements 8.2.3.2 Detailed Design Procedure 8.2.3.3 Application Curve 8.3 System Examples 8.3.1 Temperature Measurement Application 8.3.2 Single Operational Amplifier Bridge Amplifier Application 8.3.3 Low-Side Current Monitor Application 8.3.4 Other Applications 9 Power Supply Recommendations 10 Layout 10.1 Layout Guidelines 10.1.1 General Layout Guidelines 10.1.2 DFN Layout Guidelines 10.2 Layout Example 11 Device and Documentation Support 11.1 Device Support 11.1.1 Development Support 11.2 Documentation Support 11.2.1 Related Documentation 11.3 Related Links 11.4 Community Resources 11.5 Trademarks 11.6 Electrostatic Discharge Caution 11.7 Glossary 12 Mechanical, Packaging, and Orderable Information