TIDUC09
June 2026
BUF802
1
Description
Resources
Features
Applications
6
1
System Description
1.1
Key System Specifications
2
System Overview
2.1
Block Diagram
2.2
Design Considerations
2.3
System Design Theory
2.3.1
Analog Front-End
2.3.1.1
Input Buffer Amplifier
2.3.1.2
Variable Gain Amplifier
2.3.1.3
ADC Driver with LMH6552
2.3.1.4
Analog PI Filter
2.3.1.5
Digital Potentiometer
2.3.2
System Dynamic Range
2.4
Highlighted Products
2.4.1
BUF802
2.4.2
LMH6518
2.4.3
DAC80508
2.4.4
TLV3605
2.4.5
TPL0102
3
Hardware, Software, Testing Requirements, and Test Results
3.1
Hardware Requirements
3.2
Test Setup
3.2.1
ADC Configuration
3.2.2
AFE Hardware Setup & Configuration
3.2.2.1
Device Programming
3.3
Test Results
4
Design and Documentation Support
4.1
Design Files
4.1.1
Schematics
4.1.2
BOM
4.2
Tools and Software
4.3
Support Resources
4.4
Trademarks
5
About the Author
Design Guide
High-Impedance, 500MHz Bandwidth Oscilloscope Analog Front End Reference Design