BETAPIN 1 · Offset adjustment
Offset adjustmentOFFSET1
Function
One end of the optional offset-null network.
How to connect
Leave open in the basic example.
Electrical note
Use the manufacturer trim circuit when offset adjustment is required.
Single bipolar operational amplifier
LM741 Pinout
Explore LM741 pins, signal names, electrical functions and connection guidance for each package.
8Physical pins
LM741CN/NOPBPDIP-8
Manufacturer-referencedTexas Instruments
Pin diagram
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LM741PDIP-8Top view
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PIN 2 · Signal inputs
Inverting inputIN−
Function
Negative feedback input.
How to connect
Connect to the 90 kΩ / 10 kΩ feedback junction.
PIN 3 · Signal inputs
Non-inverting inputIN+
Function
Positive signal input.
How to connect
Apply the 0.20 V input signal relative to the supply midpoint.
PIN 4 · Supply
Negative supplyV−
Function
Negative power rail.
How to connect
Connect to −15 V; bypass locally to the 0 V midpoint.
Electrical note
This is not ground in the illustrated split-supply circuit.
PIN 5 · Offset adjustment
Offset adjustmentOFFSET2
Function
Other end of the optional offset-null network.
How to connect
Leave open in the basic example.
PIN 6 · Analog output
Analog outputOUT
Function
Amplified output signal.
How to connect
Connect the 90 kΩ feedback resistor and a high-impedance meter.
Electrical note
Output needs headroom from both supply rails.
PIN 7 · Supply
Positive supplyV+
Function
Positive power rail.
How to connect
Connect to +15 V; bypass locally to the 0 V midpoint.
PIN 8 · Not connected
No connectionNC
Function
No electrical connection is specified for this contact.
How to connect
Leave unconnected.