BETAPIN 1 · Analog outputs
Analog outputOUT1
Function
Channel A output.
How to connect
Return to IN1− through 20 kΩ; connect a high-impedance meter.
Dual general-purpose operational amplifier
LM1458 Pinout
Explore LM1458 pins, signal names, electrical functions and connection guidance for each package.
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8Physical pins
LM1458N/NOPBPDIP-8
Manufacturer-referencedTexas Instruments
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LM1458PDIP-8Top view
LM1458SOIC-8Top view
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PIN 2 · Analog inputs
Inverting inputIN1−
Function
Channel A negative-feedback node.
How to connect
Join 20 kΩ from OUT1 and 10 kΩ to signal ground.
PIN 3 · Analog inputs
Non-inverting inputIN1+
Function
Channel A signal input.
How to connect
Apply VIN = 0.50 V relative to the 0 V midpoint.
PIN 4 · Supply
Negative supplyV−
Function
Negative rail shared by both amplifiers.
How to connect
Connect −15 V; bypass locally to 0 V with 100 nF.
PIN 5 · Analog inputs
Non-inverting inputIN2+
Function
Channel B signal input.
How to connect
Connect to the same VIN in the illustrated follower.
PIN 6 · Analog inputs
Inverting inputIN2−
Function
Channel B feedback input.
How to connect
Connect directly to OUT2 pin 7.
PIN 7 · Analog outputs
Analog outputOUT2
Function
Channel B output.
How to connect
Connect to IN2−; leave unloaded or use a high-impedance instrument.
PIN 8 · Supply
Positive supplyV+
Function
Positive rail shared by both amplifiers.
How to connect
Connect +15 V; bypass locally to 0 V with 100 nF.