MIKROE-957 mikroElektronika, MIKROE-957 Datasheet - Page 28

• Manufacturer Part Number: MIKROE-957
• Description: Other Development Tools ASLK PRO ANALOG DEVELOPMENT SYSTEM
• Manufacturer: mikroElektronika

Specifications of MIKROE-957

• Rohs: yes
• Product: Analog System Lab Kit PRO
• Tool Is For Evaluation Of: TL082, MPY634
• Operating Supply Voltage: 2.5 V to 5.5 V
• Description/function: Analog Lab Kit for Undergraduate Engineering
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C

Integrators and differentiators can be used as a building block for filters. Filters
form the essential block in analog signal processing to improve signal to noise
ratio. An OP-Amp can be used to construct an integrator or a differentiator. This
experiment is to understand the advantage of integrators as building blocks instead
of differentiators. Differentiators are rejected because of their poor high-frequency
noise response.
3.1.1 Integrators
An integrator circuit that uses an OP-Amp is shown in Figure 3.1.
Assuming
The output goes to saturation in practice. For making it work a high valued resistance
across
can act as an integrator.
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3.1 Brief theory and motivation
The goal of the experiment is to understand the advantages and
disadvantages of using integrators or differentiators as a building block in
solving
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Goal of the experiment
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order differential equations or building an
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Figure 3.1: Integrator
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order filter.
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3.1.2 Differentiators
A differentiator circuit that uses an OP-Amp is shown in Figure 3.2.
The output of the differentiator remains at input offset (approximately 0). However,
any sudden disturbance at the input causes it to ring at natural frequency
3.2 Specifications
Fix the RC time constant of the integrator or differentiator so that the phase shift
and magnitude variation of the ideal block remains unaffected by the active device
parameters.
3.3 Measurements to be taken
1
2
Transient Response - Apply the step input and square wave input to the
integrator and study the output response. Apply the triangular and square
input to the differentiator and study the output response.
Frequency Response - Apply the sine wave input and study the phase error
and magnitude error for integrator and differentiator.
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Figure 3.2: Differentiator
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(3.1)
(3.2)
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