Linear Technology AN79 Application Note: 30ns Settling Time Measurement for Precision Wideband Amplifier

This document introduces a 30 nanosecond precision broadband amplifier settling time measurement method. This precision broadband amplifier has a 30 nanosecond settling time, which can introduce precision while maintaining high speed operation. The amplifier's DC and AC specifications approach or equal previous devices at significantly lower cost while saving power.


Linear Technology AN79 Application Note: 30ns Settling Time Measurement for Precision Wideband Amplifier - cover page
Brand
Linear Technology
Category
Other Electronics
Document type
Application Note
Language
English
Pages
32
File format
PDF
File size
609 KB
Published
05 June, 2012
Updated
30 September, 2023
MD5 checksum
52CED9EBFF017A2CBBB41DA77B7BB43A

About this manual

The document introduces the LT1813 dual operational amplifier, highlighting its 30ns settling time to 0.1% for a 5V step, low offset voltage of 0.5mV, and high DC gain. It explains that traditional measurement methods using standard oscilloscopes often yield misleading results due to overdrive recovery issues and input pulse aberrations.

What's inside

  • Introduction
  • Settling Time Defined
  • Measuring Nanosecond Region Settling Time
  • Practical Nanosecond Settling Time Measurement
  • Figure 1: Settling Time Components

Specifications

Offset Voltage0.5mV
Settling Time30ns/0.1%
Slew Rate750V/ms
Gain-Bandwidth100MHz

Frequently asked questions

What is the settling time of the LT1813?

The output settles to 0.1% within 30ns for a 5V step.

Why are traditional settling time measurements unreliable?

Standard oscilloscopes suffer from overdrive recovery issues, and pulse generators often lack the required flat-top amplitude stability.

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