Datasheet OPA4388 (Texas Instruments)
| Hersteller | Texas Instruments |
| Beschreibung | Quad, 10-MHz, CMOS, zero-drift, zero-crossover, true RRIO precision operational amplifier |
| Seiten / Seite | 50 / 1 — OPA388. , OPA2388. , OPA4388. OPAx388 Precision, Zero-Drift, … |
| Dateiformat / Größe | PDF / 3.3 Mb |
| Dokumentensprache | Englisch |
OPA388. , OPA2388. , OPA4388. OPAx388 Precision, Zero-Drift, Zero-Crossover, True Rail-to-Rail, Input/Output
Modelllinie für dieses Datenblatt
Textversion des Dokuments
link to page 1
OPA388 , OPA2388 , OPA4388
SBOS777D – NOVEMBER 2016 – REVISED JULY 2020
OPAx388 Precision, Zero-Drift, Zero-Crossover, True Rail-to-Rail, Input/Output Operational Amplifiers 1 Features 3 Description
• Ultra-low offset voltage: ±0.25 µV The OPAx388 (OPA388, OPA2388, and OPA4388) • Zero drift: ±0.005 µV/°C series of precision operational amplifiers are ultra-low • Zero crossover: 140-dB CMRR true RRIO noise, fast-settling, zero-drift, zero-crossover devices • Low noise: 7.0 nV√Hz at 1 kHz that provide rail-to-rail input and output operation. • No 1/f noise: 140 nVPP (0.1 Hz to 10 Hz) These features and excellent ac performance, • Fast settling: 2 µs (1 V to 0.01%) combined with only 0.25 µV of offset and 0.005 • Gain bandwidth: 10 MHz µV/°C of drift over temperature, makes the OPAx388 • Single supply: 2.5 V to 5.5 V a great choice for driving high-precision, analog-to- • Dual supply: ±1.25 V to ±2.75 V digital converters (ADCs) or buffering the output of • True rail-to-rail input and output high-resolution, digital-to-analog converters (DACs). • EMI/RFI filtered inputs This design results in excellent performance when • Industry-standard packages: driving analog-to-digital converters (ADCs) without – Single in SOIC-8, SOT-23-5, and VSSOP-8 degradation of linearity. The OPA388 (single version) – Dual in SOIC-8 and VSSOP-8 is available in the VSSOP-8, SOT23-5, and SOIC-8 – Quad in SOIC-14 and TSSOP-14 packages. The OPA2388 (dual version) is offered in the VSSOP-8 and SO-8 packages. The OPA4388
2 Applications
(quad version) is offered in the TSSOP-14 and • Merchant network and server PSU SO-14 packages. All versions are specified over the • Notebook PC power adapter design industrial temperature range of –40°C to +125°C. • Weigh scale
Device Information
• Lab and field instrumentation
PART NUMBER PACKAGE
(1)
BODY SIZE (NOM)
• Battery test • Electronic thermometer SOIC (8) 4.90 mm × 3.90 mm • Temperature transmitter OPA388 SOT-23 (5) 2.90 mm × 1.60 mm VSSOP (8) 3.00 mm × 3.00 mm SOIC (8) 4.90 mm × 3.90 mm OPA2388 VSSOP (8) 3.00 mm × 3.00 mm SOIC (14) 8.65 mm x 3.90 mm OPA4388 TSSOP (14) 5.00 mm x 4.40 mm (1) For all available packages, see the package option addendum at the end of the data sheet. R3 2.53 3 25 k 2.52 2 R4 ) 100 k ) 5 V m R
REF5025
(V 2.51 1 p G e g y (p R R 4 2 lta rit 100 k 25 k o 2.5 0 a V t 5 V ine u -L 5 V 5 V tp 2.49 -1 +SENSE Ou Non ± ± V
OPA388 OPA388
OUT 2.48 -2 + + R = 1 kŸ R2 G GND GND 2.47 -3 10 k ±SENSE ±100 ±80 ±60 ±40 ±20 0 20 40 60 80 100 200 Load Cell NŸ GND G = 5 + û5 5 SSP C001 R GND G
The OPA388 in a High-CMRR, Instrumentation The OPA388 Allows Precision, Low-Error Amplifier Application Measurements
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: OPA388 6.5 Thermal Information: OPA2388 6.6 Thermal Information: OPA4388 6.7 Electrical Characteristics: VS = ±1.25 V to ±2.75 V (VS = 2.5 to 5.5 V) 6.8 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 and Zero-Crossover Functionality 7.3.3 Input Differential Voltage 7.3.4 Internal Offset Correction 7.3.5 EMI Susceptibility and Input Filtering 7.4 Device Functional Modes 8 Application and Implementation 8.1 Application Information 8.2 Typical Applications 8.2.1 Bidirectional Current-Sensing 8.2.1.1 Design Requirements 8.2.1.2 Detailed Design Procedure 8.2.1.3 Application Curve 8.2.2 Single Operational Amplifier Bridge Amplifier 8.2.3 Precision, Low-Noise, DAC Buffer 8.2.4 Load Cell Measurement 9 Power Supply Recommendations 10 Layout 10.1 Layout Guidelines 10.2 Layout Example 11 Device and Documentation Support 11.1 Device Support 11.1.1 Development Support 11.1.1.1 TINA-TI™ Simulation Software (Free Download) 11.1.1.2 TI Precision Designs 11.2 Documentation Support 11.2.1 Related Documentation 11.3 Related Links 11.4 Receiving Notification of Documentation Updates 11.5 Support Resources 11.6 Trademarks 11.7 Electrostatic Discharge Caution 11.8 Glossary 12 Mechanical, Packaging, and Orderable Information
OPA388 , OPA2388 , OPA4388
SBOS777D – NOVEMBER 2016 – REVISED JULY 2020
OPAx388 Precision, Zero-Drift, Zero-Crossover, True Rail-to-Rail, Input/Output Operational Amplifiers 1 Features 3 Description
• Ultra-low offset voltage: ±0.25 µV The OPAx388 (OPA388, OPA2388, and OPA4388) • Zero drift: ±0.005 µV/°C series of precision operational amplifiers are ultra-low • Zero crossover: 140-dB CMRR true RRIO noise, fast-settling, zero-drift, zero-crossover devices • Low noise: 7.0 nV√Hz at 1 kHz that provide rail-to-rail input and output operation. • No 1/f noise: 140 nVPP (0.1 Hz to 10 Hz) These features and excellent ac performance, • Fast settling: 2 µs (1 V to 0.01%) combined with only 0.25 µV of offset and 0.005 • Gain bandwidth: 10 MHz µV/°C of drift over temperature, makes the OPAx388 • Single supply: 2.5 V to 5.5 V a great choice for driving high-precision, analog-to- • Dual supply: ±1.25 V to ±2.75 V digital converters (ADCs) or buffering the output of • True rail-to-rail input and output high-resolution, digital-to-analog converters (DACs). • EMI/RFI filtered inputs This design results in excellent performance when • Industry-standard packages: driving analog-to-digital converters (ADCs) without – Single in SOIC-8, SOT-23-5, and VSSOP-8 degradation of linearity. The OPA388 (single version) – Dual in SOIC-8 and VSSOP-8 is available in the VSSOP-8, SOT23-5, and SOIC-8 – Quad in SOIC-14 and TSSOP-14 packages. The OPA2388 (dual version) is offered in the VSSOP-8 and SO-8 packages. The OPA4388
2 Applications
(quad version) is offered in the TSSOP-14 and • Merchant network and server PSU SO-14 packages. All versions are specified over the • Notebook PC power adapter design industrial temperature range of –40°C to +125°C. • Weigh scale
Device Information
• Lab and field instrumentation
PART NUMBER PACKAGE
(1)
BODY SIZE (NOM)
• Battery test • Electronic thermometer SOIC (8) 4.90 mm × 3.90 mm • Temperature transmitter OPA388 SOT-23 (5) 2.90 mm × 1.60 mm VSSOP (8) 3.00 mm × 3.00 mm SOIC (8) 4.90 mm × 3.90 mm OPA2388 VSSOP (8) 3.00 mm × 3.00 mm SOIC (14) 8.65 mm x 3.90 mm OPA4388 TSSOP (14) 5.00 mm x 4.40 mm (1) For all available packages, see the package option addendum at the end of the data sheet. R3 2.53 3 25 k 2.52 2 R4 ) 100 k ) 5 V m R
REF5025
(V 2.51 1 p G e g y (p R R 4 2 lta rit 100 k 25 k o 2.5 0 a V t 5 V ine u -L 5 V 5 V tp 2.49 -1 +SENSE Ou Non ± ± V
OPA388 OPA388
OUT 2.48 -2 + + R = 1 kŸ R2 G GND GND 2.47 -3 10 k ±SENSE ±100 ±80 ±60 ±40 ±20 0 20 40 60 80 100 200 Load Cell NŸ GND G = 5 + û5 5 SSP C001 R GND G
The OPA388 in a High-CMRR, Instrumentation The OPA388 Allows Precision, Low-Error Amplifier Application Measurements
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: OPA388 6.5 Thermal Information: OPA2388 6.6 Thermal Information: OPA4388 6.7 Electrical Characteristics: VS = ±1.25 V to ±2.75 V (VS = 2.5 to 5.5 V) 6.8 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 and Zero-Crossover Functionality 7.3.3 Input Differential Voltage 7.3.4 Internal Offset Correction 7.3.5 EMI Susceptibility and Input Filtering 7.4 Device Functional Modes 8 Application and Implementation 8.1 Application Information 8.2 Typical Applications 8.2.1 Bidirectional Current-Sensing 8.2.1.1 Design Requirements 8.2.1.2 Detailed Design Procedure 8.2.1.3 Application Curve 8.2.2 Single Operational Amplifier Bridge Amplifier 8.2.3 Precision, Low-Noise, DAC Buffer 8.2.4 Load Cell Measurement 9 Power Supply Recommendations 10 Layout 10.1 Layout Guidelines 10.2 Layout Example 11 Device and Documentation Support 11.1 Device Support 11.1.1 Development Support 11.1.1.1 TINA-TI™ Simulation Software (Free Download) 11.1.1.2 TI Precision Designs 11.2 Documentation Support 11.2.1 Related Documentation 11.3 Related Links 11.4 Receiving Notification of Documentation Updates 11.5 Support Resources 11.6 Trademarks 11.7 Electrostatic Discharge Caution 11.8 Glossary 12 Mechanical, Packaging, and Orderable Information