SBOS777D November   2016  – July 2020 OPA2388 , OPA388 , OPA4388

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information: OPA388
    5. 6.5 Thermal Information: OPA2388
    6. 6.6 Thermal Information: OPA4388
    7. 6.7 Electrical Characteristics: VS = ±1.25 V to ±2.75 V (VS = 2.5 to 5.5 V)
    8. 6.8 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Operating Voltage
      2. 7.3.2 Input Voltage and Zero-Crossover Functionality
      3. 7.3.3 Input Differential Voltage
      4. 7.3.4 Internal Offset Correction
      5. 7.3.5 EMI Susceptibility and Input Filtering
    4. 7.4 Device Functional Modes
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Bidirectional Current-Sensing
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curve
      2. 8.2.2 Single Operational Amplifier Bridge Amplifier
      3. 8.2.3 Precision, Low-Noise, DAC Buffer
      4. 8.2.4 Load Cell Measurement
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Development Support
        1. 11.1.1.1 TINA-TI™ Simulation Software (Free Download)
        2. 11.1.1.2 TI Precision Designs
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Related Links
    4. 11.4 Receiving Notification of Documentation Updates
    5. 11.5 Support Resources
    6. 11.6 Trademarks
    7. 11.7 Electrostatic Discharge Caution
    8. 11.8 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

6.8 Typical Characteristics

at TA = 25°C, VS = ±2.5 V, VCM = VS / 2, RLOAD = 10 kΩ connected to VS / 2, and CL = 100 pF (unless otherwise noted)

Table 6-1 Table of Graphs
DESCRIPTION FIGURE
Offset Voltage Production Distribution Figure 6-1
Offset Voltage Drift Distribution From –40°C to +125°C Figure 6-2
Offset Voltage vs Temperature Figure 6-3
Offset Voltage vs Common-Mode Voltage Figure 6-4
Offset Voltage vs Power Supply: OPA388 and OPA2388 Figure 6-5
Offset Voltage vs Power Supply: OPA4388 Figure 6-6
Offset Voltage Long Term Drift Figure 6-7
Open-Loop Gain and Phase vs Frequency Figure 6-8
Closed-Loop Gain and Phase vs Frequency Figure 6-9
Input Bias Current vs Common-Mode Voltage Figure 6-10
Input Bias Current vs Temperature Figure 6-11
Output Voltage Swing vs Output Current (Maximum Supply) Figure 6-12
CMRR and PSRR vs Frequency Figure 6-13
CMRR vs Temperature Figure 6-14
PSRR vs Temperature Figure 6-15
0.1-Hz to 10-Hz Noise Figure 6-16
Input Voltage Noise Spectral Density vs Frequency Figure 6-17
THD+N Ratio vs Frequency Figure 6-18
THD+N vs Output Amplitude Figure 6-19
Spectral Content Figure 6-20, Figure 6-21
Quiescent Current vs Supply Voltage Figure 6-22
Quiescent Current vs Temperature Figure 6-23
Open-Loop Gain vs Temperature Figure 6-24
Open-Loop Output Impedance vs Frequency Figure 6-25
Small-Signal Overshoot vs Capacitive Load (10-mV Step) Figure 6-26
No Phase Reversal Figure 6-27
Positive Overload Recovery Figure 6-28
Negative Overload Recovery Figure 6-29
Small-Signal Step Response (10-mV Step) Figure 6-30, Figure 6-31
Large-Signal Step Response (4-V Step) Figure 6-32 , Figure 6-33
Settling Time Figure 6-34, Figure 6-35
Short-Circuit Current vs Temperature Figure 6-36
Maximum Output Voltage vs Frequency Figure 6-37
EMIRR vs Frequency Figure 6-38
GUID-3A18F746-2AC7-434F-A2C2-342D75F863AD-low.png
Figure 6-1 Offset Voltage Production Distribution
GUID-4A0CC07C-8DF2-434F-B174-60B69F08B11A-low.png
 
Figure 6-3 Offset Voltage vs Temperature
GUID-7BA4CF90-CD3C-445D-B41F-2ACD7D33B426-low.png
 
Figure 6-5 Offset Voltage vs Supply Voltage: OPA388 and OPA2388
GUID-3ECD3D0A-5797-4E22-B268-2A8ED4737CBF-low.gif
3 typical units
Figure 6-7 Offset Voltage Long Term Drift
GUID-08D59E34-3CBD-4263-B5E4-A8CC9D1B7A5E-low.png
 
Figure 6-9 Closed-Loop Gain and Phase vs Frequency
GUID-56604339-98EE-4E06-A2D4-4EB74E5BEE97-low.png
 
Figure 6-11 Input Bias Current vs Temperature
GUID-B88A5347-4378-4C9C-A7F6-D2F795CECCC2-low.png
 
Figure 6-13 CMRR and PSRR vs Frequency
GUID-BDCD6285-ADCB-4DD2-AD1F-922200CE39DC-low.png
 
Figure 6-15 PSRR vs Temperature
GUID-C2FD45BF-3759-4333-B9DE-4A18C5C6E6CA-low.png
 
Figure 6-17 Input Voltage Noise Spectral Density vs Frequency
GUID-C9C1781A-989B-4EF2-ABB7-42C21D08679D-low.png
 
Figure 6-19 THD+N vs Output Amplitude
GUID-D093F195-48CD-49C9-9707-D9B77CE2517B-low.png
G = +1, f = 1 kHz, VO = 4.5 VPP, RL = 2 kΩ, BW = 90 kHz
Figure 6-21 Spectral Content (With 2-kΩ Load)
GUID-25E01AC2-7E73-4868-A66A-E171B493EDFC-low.png
 
Figure 6-23 Quiescent Current vs Temperature
GUID-089BB7F4-8590-42BD-8C19-48E314694622-low.png
 
Figure 6-25 Open-Loop Output Impedance vs Frequency
GUID-CAFB1D14-2FF7-4F3E-AB9D-FCB395E10475-low.png
 
Figure 6-27 No Phase Reversal
GUID-48869E96-AE6E-4C92-A427-5E77E57FFF5A-low.png
 
Figure 6-29 Negative Overload Recovery
GUID-55DD2CCA-0903-4600-B3AC-5A4C3788D6D9-low.png
G = –1
Figure 6-31 Small-Signal Step Response (10-mV Step)
GUID-431C6F76-1AE8-4E92-BC23-46333D31C5F4-low.png
Rising output
Figure 6-33 Large-Signal Step Response (4-V Step)
GUID-D6487361-AEAB-46D5-A271-5B69C7190CE5-low.png
0.01% settling = ±200 µV
Figure 6-35 Settling Time (1-V Negative Step)
GUID-80A34176-8BBA-40BC-83F8-7F2A8CB78B6F-low.png
 
Figure 6-37 Maximum Output Voltage vs Frequency
GUID-CA58E085-4C76-4DD9-A6C7-FFB60B039379-low.png
Figure 6-2 Offset Voltage Drift Distribution From –40°C to +125°C
GUID-E36F9C4E-17E8-48D6-AC24-65F09AC0B2C8-low.png
 
Figure 6-4 Offset Voltage vs Common-Mode Voltage
GUID-34C3EFA3-22E6-4418-9A45-CC4DD6995E2E-low.gif
 
Figure 6-6 Offset Voltage vs Supply Voltage: OPA4388
GUID-E34EBFD5-328B-4824-B309-5AE41E5542CC-low.gif
 
Figure 6-8 Open-Loop Gain and Phase vs Frequency
GUID-37C1CA56-31CA-4132-B186-36F42190A124-low.png
 
Figure 6-10 Input Bias Current vs Common-Mode Voltage
GUID-11EFF89C-B5EE-41C3-9A80-239AEC49592A-low.png
 
Figure 6-12 Output Voltage Swing vs Output Current (Maximum Supply)
GUID-6FAD0F12-72D3-45B9-8271-2C503C1FC3CE-low.png
 
Figure 6-14 CMRR vs Temperature
GUID-FFF2D399-3C0D-4CF9-9462-808A991C846F-low.png
 
Figure 6-16 0.1-Hz to 10-Hz Noise
GUID-9DFE2D8B-DFBE-4F12-99AF-59A0813052C1-low.png
 
Figure 6-18 THD+N Ratio vs Frequency
GUID-D8225BC4-0327-4C35-9902-5556A17D12F3-low.png
G = +1, f = 1 kHz, VO = 4.5 VPP, RL = 10 kΩ, BW = 90 kHz
Figure 6-20 Spectral Content (With 10-kΩ Load)
GUID-E83C7E83-8EDA-4D07-8545-DE0265D44D54-low.png
 
Figure 6-22 Quiescent Current vs Supply Voltage
GUID-4A17ECF1-FC7D-40FC-88E7-78EDF6BB0100-low.png
 
Figure 6-24 Open-Loop Gain vs Temperature
GUID-163E97B8-4C1F-443E-8E71-11EC286B169E-low.png
 
Figure 6-26 Small-Signal Overshoot vs Capacitive Load (10-mV Step)
GUID-5C4CF380-6F0B-4B70-849E-499C3BA0CF09-low.png
 
Figure 6-28 Positive Overload Recovery
GUID-2E828D82-A0D7-4D79-8D05-DF183D16ECCA-low.png
G = +1
Figure 6-30 Small-Signal Step Response (10-mV Step)
GUID-5F19A660-9350-4E0E-9E27-6952616C092D-low.png
Falling output
Figure 6-32 Large-Signal Step Response (4-V Step)
GUID-454FE1AD-98C4-4CDD-9DC3-2FC293819878-low.png
0.01% settling = ±100 µV
Figure 6-34 Settling Time (1-V Positive Step)
GUID-948F3C2E-AADE-4A99-8381-37DED1839096-low.png
 
Figure 6-36 Short-Circuit Current vs Temperature
GUID-8734C7F2-739D-4C85-A10C-20343CBB7E04-low.png
PRF = –10 dBm
Figure 6-38 EMIRR vs Frequency