28119 Parallax Inc, 28119 Datasheet - Page 124

• Manufacturer Part Number: 28119
• Description: KIT UNDERSTANDING SIGNALS
• Manufacturer: Parallax Inc

Specifications of 28119

• Lead Free Status: Contains lead
• Accessory Type: Oscilloscope
• Interface Type: USB
• For Use With/related Products: BASIC Stamp® 2 and Board of Education
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Summary
This chapter introduced just a few basic examples of the many uses of operational
amplifiers: buffers, and inverting and non-inverting voltage amplifiers. The concepts of
gain, slew rate, and signal clipping were introduced. A variable resistor was used to
accomplish the DC offset necessary to view a signal whose output was below the range
determined by the op-amp’s power supply rails.
Exercises
Further Investigation
“Basic Analog and Digital”, Student Guide, Version 1.2, Parallax, Inc. 2003.
1. Design and implement a non-inverting amplifier with a gain of 4.
2. Design and implement an inverting amplifier with a gain of 0.25.
This Stamps in Class text by Andy Lindsay of Parallax provides additional
exercises using the LM358 op-amp. It is available online from the Stamps in
Class Curriculum menu on the Education page at www.parallax.com.
a. What is the maximum voltage swing you can have without clipping the
b. What
output?
RC circuit attenuates the input signal to prevent clipping the output?
Explain why adjusting the frequency affects the amplitude of the RC
network.
freq1
argument would you use with the
FREQOUT
command so the