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OPAx863 Low-Power, 110-MHz, Rail-to-Rail Input/Output Voltage-Feedback Op Amps
SBOS982J
june 2020 – june 2023
OPA2863
,
OPA4863
,
OPA863
PRODUCTION DATA
CONTENTS
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OPAx863 Low-Power, 110-MHz, Rail-to-Rail Input/Output Voltage-Feedback Op Amps
1
1
Features
2
Applications
3
Description
4
Revision History
5
Device Comparison Table
6
Pin Configuration and Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information: OPA863
7.5
Thermal Information: OPA2863
7.6
Thermal Information: OPA4863
7.7
Electrical Characteristics: VS = 10 V
7.8
Electrical Characteristics: VS = 3 V
7.9
Typical Characteristics: VS = 10 V
7.10
Typical Characteristics: VS = 3 V
7.11
Typical Characteristics: VS = 3 V to 10 V
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Input Stage
8.3.2
Output Stage
8.3.2.1
Overload Power Limit
8.3.3
ESD Protection
8.4
Device Functional Modes
8.4.1
Power-Down Mode
9
Application and Implementation
9.1
Application Information
9.2
Typical Applications
9.2.1
Low-Side Current Sensing
9.2.1.1
Design Requirements
9.2.1.2
Detailed Design Procedure
9.2.1.3
Application Curves
9.2.2
Front-End Gain and Filtering
9.2.3
Low-Power SAR ADC Driver and Reference Buffer
9.2.4
Variable Reference Generator Using MDAC
9.2.5
Clamp-On Ultrasonic Flow Meter
9.3
Power Supply Recommendations
9.4
Layout
9.4.1
Layout Guidelines
9.4.1.1
Thermal Considerations
9.4.2
Layout Example
10
Device and Documentation Support
10.1
Documentation Support
10.1.1
Related Documentation
10.2
Receiving Notification of Documentation Updates
10.3
Support Resources
10.4
Trademarks
10.5
Electrostatic Discharge Caution
10.6
Glossary
11
Mechanical, Packaging, and Orderable Information
IMPORTANT NOTICE
Package Options
Mechanical Data (Package|Pins)
DBV|5
MPDS018T
DBV|6
MPDS026Q
Thermal pad, mechanical data (Package|Pins)
Orderable Information
sbos982j_oa
sbos982j_pm
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Data Sheet
OPAx863 Low-Power, 110-MHz, Rail-to-Rail Input/Output Voltage-Feedback Op Amps
1
Features
Wide-bandwidth
Unity-gain bandwidth: 110-MHz (A
V
= 1 V/V)
Gain-bandwidth product: 50-MHz
Low power
Quiescent current: 700-µA/ch (typical)
Power down mode: 1.5-µA (maximum, V
S
= 3 V)
Supply voltage: 2.7-V to 12.6-V
Input voltage noise: 5.9-nV/√Hz
Slew rate: 105-V/µs
Rail-to-rail input and output
HD
2
/HD
3
: –129 dBc/–138 dBc at 20 kHz (2-V
PP
)
Operating temperature range:
–40°C to +125°C
Additional features:
Overload power limit
Output short-circuit protection
High-precision version:
OPAx863A
2
Applications
Low-power SAR and ΔΣ ADC driver
ADC reference buffer
Low-side current sensing
Photodiode TIA interface
Inductive sensing
Ultrasonic flow meter
Multifunction printer
MDAC output buffer
Gain and active filter stages
Application Circuits Using OPAx863