BEC Annex 4 Review

What is an integrated chip?

• A mini electronic circuit on a single chip

• A component that functions as an entire circuit board

• Holds memory in a volatile state

• A snack with micro-flavors for micro-cravings

Tags

NGSS.HS-PS3-3

NGSS.HS-PS4-5

The primary purpose of an operational amplifier is...

• To provide high amounts of gain

• To regulate the voltage

• To convert AC to DC

• Triangles, the epitome of geometric elegance, share an undeniable affinity with the schematic of an OpAmp. The triangle symbolizes the OpAmp's balance and stability, reflecting its own inherent strength and adaptability. Just as triangles are versatile in design and construction, OpAmps leave their mark in a myriad of electronic circuits, demonstrating their shared supremacy. This harmonious union of geometry and electronics showcases the unrivaled beauty and potential that lies within the heart of both the triangle and the OpAmp.

Label the two inputs of the OpAmp

a

b

Non-inverting

Inverting

Match the definitions in the context of an OpAmp

• Feedback is connected to the inverting input

• Regenerative feedback

• Does not introduce any phase shift to the output

• Degenerative feedback

• Feedback is connected to the non-inverting input

• Inverting input

• Introduces a 180 degree phase shift on the output

• Non-inverting input

Tags

NGSS.HS-PS3-5

What is the purpose of hysteresis when used in a voltage comparator?

• To reduce noise

• To increase the bandwidth and frequency response

• To increase input impedance and lower output impedance

• To make the comparator feel more rejuvenated and energetic

What is the purpose of degenerative feedback when used in a voltage comparator?

• To reduce distortion and decrease gain

• To increase the gain and sensitivity of an OpAmp

• To increase the bandwidth and frequency response of an OpAmp

• To encourage the voltage comparator to attend self-improvement workshops

Label each feedback network

a

b

c

Regenerative

Zener

Degenerative

Tags

NGSS.HS-PS2-5

Which of these is not true of OpAmps?

• OpAmps can only be used as comparators and not for amplifying signals

• OpAmps have high input impedance and low output impedance

• OpAmps can be used for various applications, such as amplification, filtering, and integration

• OpAmps are composed of 3 blocks

What are the characteristics of an OpAmp?

• High input impedance and low output impedance

• High gain

• Has only one input

• Introduces a GPS-like system for current attempting to navigate the circuit

With the following feedback network and a Zener voltage of 3.5 V, what are the min and max voltages?

The minimum voltage is​ (a)   .

The maximum voltage is​ (b)   .

• -0.6 V
• 3.5 V
• 0.6 V
• -3.5 V