TIDUEW8
August 2022
Description
Resources
Features
Applications
5
1
System Description
1.1
Key System Specifications
2
System Overview
2.1
Schematic Diagram
2.2
Highlighted Products
2.2.1
THS3491 Current Feedback Amplifier Specifications
2.3
System Design Theory
2.3.1
Theory of Operation
2.3.1.1
Concept of Power Supply Range Extension
2.3.2
Stability Considerations
2.3.2.1
Inclusion of Series Isolation Resistance (RS)
2.3.3
Power Dissipation
2.3.3.1
DC Internal Power Dissipation of Driver Amplifier for a Purely Resistive Output Load
2.3.3.2
AC Average Internal Power Dissipation of Driver Amplifier for a Purely Resistive Output Load
2.3.3.3
Internal Average Power Dissipation of Driver Amplifier for RC Output Load
2.3.4
Thermal Performance
2.3.4.1
Linear Safe Operating Area (SOA)
3
Hardware, Software, Testing Requirements, and Test Results
3.1
Required Hardware
3.2
Test Setup
3.3
Test Results
4
Design Files
4.1
Schematics
4.2
Bill of Materials
4.3
PCB Layout Recommendations
4.3.1
Layout Prints
4.4
Altium Project
4.5
Gerber Files
4.6
Assembly Drawings
5
Related Documentation
5.1
Trademarks
Features
High output voltage swing: > 50 V
pp
at 1 MHz
Maximum supply voltage: ±32 V
High capacitive load drive of 100 pF to 1000 pF
Large signal BW: 100 MHz for 20 V
pp
scalable small form factor for multiple subsystems