ECE 3741 | Experiment 2 + 3

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Last updated 4:04 AM on 6/10/26
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Op amp pin out

Note: Pins 4 and 7! (-Vs and +Vs) must ALWAYS be connected! (or circuit will not function!

1.) Offset Null (not important)

2.) V-

3.) V+

4.) -Vs

5.) Offset Null (Across Opp ends from each other).

6.) Vout

7.) +Vs

8.) NC = No Connection!

<p>Note: Pins 4 and 7! (-Vs and +Vs) must ALWAYS be connected! (or circuit will not function!</p><p>1.) Offset Null (not important)</p><p>2.) V<strong>-</strong></p><p>3.) V<strong>+</strong></p><p><strong>4.) -Vs</strong></p><p>5.) Offset Null (Across Opp ends from each other).</p><p>6.) Vout</p><p><strong>7.) +Vs</strong></p><p>8.) NC = No Connection!</p>
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Figure 1-4: Breadboard configured for all three voltage levels: one + Vs rail, one -Vs rail, and four GND rails

The three-voltage configuration shown in Figure 1-4 is required for any circuit that at LEAST contains one op-amp. Op-amps are the most common reason that a negative voltage is needed. Thus, in most experiments, we will set yp the supply rails as shown in Figure 1-4 as our very first task!

Resistors = 100 ohms.

GND = Vc (left = GND!)

-Vs = Vb

+Vs = Va

<p>The three-voltage configuration shown in Figure 1-4 is required for any circuit that at LEAST contains one op-amp. Op-amps are the most common reason that a negative voltage is needed. Thus, in most experiments, we will set yp the supply rails as shown in Figure 1-4 as our very first task!</p><p>Resistors = 100 ohms. </p><p>GND = Vc (left = GND!) </p><p>-Vs = Vb</p><p>+Vs = Va</p>
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K

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K