Datasheet OPA4388 (Texas Instruments) - 9

link to page 15 link to page 15
OPA388 , OPA2388 , OPA4388 www.ti.com
SBOS777D – NOVEMBER 2016 – REVISED JULY 2020
6.7 Electrical Characteristics: VS = ±1.25 V to ±2.75 V (VS = 2.5 to 5.5 V) (continued)
at TA = 25°C, VCM = VOUT = VS / 2, and RLOAD = 10 kΩ connected to VS / 2 (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT OPEN-LOOP GAIN
(V–) + 0.15 V < VO < (V+) – 0.15 V, RLOAD = 10 kΩ 126 148 (V–) + 0.15 V < VO < (V+) – 0.15 V, RLOAD = 10 kΩ, OPA388, OPA2388 120 126 TA = –40°C to +125°C (V–) + 0.15 V < VO < (V+) – 0.15 V, RLOAD = 10 kΩ, VS = 5.5 V OPA4388 120 126 A T OL Open-loop voltage gain A = –40°C to +125°C dB (V–) + 0.25 V < VO < (V+) – 0.25 V, RLOAD = 2 kΩ 126 148 (V–) + 0.30 V < VO < (V+) – 0.30 V, OPA388, OPA2388 120 148 RLOAD = 2 kΩ (V–) + 0.30 V < VO < (V+) – 0.30 V, RLOAD = 2 kΩ, VS = 5.5 V OPA4388 120 126 TA = –40°C to +125°C
FREQUENCY RESPONSE
GBW Unity-gain bandwidth 10 MHz SR Slew rate G = 1, 4-V step 5 V/µs Total harmonic THD+N G = 1, f = 1 kHz, V distortion + noise O = 1 VRMS 0.0005% V To 0.1% S = ±2.5 V, G = 1, 0.75 µs 1-V step tS Settling time V To 0.01% S = ±2.5 V, G = 1, 2 µs 1-V step tOR Overload recovery time VIN × G = VS 10 µs
OUTPUT
No load 1 15 Positive rail RLOAD = 10 kΩ 5 20 RLOAD = 2 kΩ 20 50 Voltage output swing VO No load 5 15 mV from rail Negative rail RLOAD = 10 kΩ 10 20 RLOAD = 2 kΩ 40 60 TA = –40°C to +125°C, both rails, RLOAD = 10 kΩ 10 25 VS = 5.5 V ±60 mA ISC Short-circuit current VS = 2.5 V ±30 mA CLOAD Capacitive load drive See Figure 6-26 Open-loop output ZO f = 1 MHz, I impedance O = 0 A, see Figure 6-25 100 Ω
POWER SUPPLY
IO = 0 A 1.7 2.4 VS = ±1.25 V (VS = 2.5 V) TA = –40°C to 1.7 2.4 Quiescent current per +125°C, IO = 0 A IQ mA amplifier IO = 0 A 1.9 2.6 VS = ±2.75 V (VS = 5.5 V) TA = –40°C to 1.9 2.6 +125°C, IO = 0 A Copyright © 2022 Texas Instruments Incorporated Submit Document Feedback 9 Product Folder Links: OPA388 OPA2388 OPA4388 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