BETAPIN 1 · Analog outputs
Analog outputOUTA
Function
Channel A output.
How to connect
Connect the 30 kΩ feedback resistor and high-impedance meter.
Electrical note
Output swing requires supply headroom.
Quad FET-input operational amplifier
TL074 Pinout
Explore TL074 pins, signal names, electrical functions and connection guidance for each package.
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14Physical pins
TL074CNPDIP-14
Manufacturer-referencedTexas Instruments
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TL074CNPDIP-14Top view
TL074CDRSOIC-14Top view
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PIN 2 · Analog inputs
Inverting inputINA−
Function
Channel A negative-feedback node.
How to connect
Join 30 kΩ from OUTA and 10 kΩ to the 0 V midpoint.
PIN 3 · Analog inputs
Non-inverting inputINA+
Function
Channel A positive input.
How to connect
Connect to the common 0.40 V input in the example.
Electrical note
Stay within the specified input common-mode range.
PIN 4 · Supply
Positive supplyVCC+
Function
Positive rail shared by four channels.
How to connect
Connect +15 V; bypass locally to 0 V with 100 nF.
PIN 5 · Analog inputs
Non-inverting inputINB+
Function
Channel B positive input.
How to connect
Connect to the common 0.40 V input in the example.
Electrical note
Stay within the specified input common-mode range.
PIN 6 · Analog inputs
Inverting inputINB−
Function
Channel B negative-feedback node.
How to connect
Join directly to OUTB for a follower.
PIN 7 · Analog outputs
Analog outputOUTB
Function
Channel B output.
How to connect
Connect to its own negative input; no external load in this example.
Electrical note
Output swing requires supply headroom.
PIN 8 · Analog outputs
Analog outputOUTC
Function
Channel C output.
How to connect
Connect to its own negative input; no external load in this example.
Electrical note
Output swing requires supply headroom.
PIN 9 · Analog inputs
Inverting inputINC−
Function
Channel C negative-feedback node.
How to connect
Join directly to OUTC for a follower.
PIN 10 · Analog inputs
Non-inverting inputINC+
Function
Channel C positive input.
How to connect
Connect to the common 0.40 V input in the example.
Electrical note
Stay within the specified input common-mode range.
PIN 11 · Supply
Negative supplyVCC−
Function
Negative rail shared by four channels.
How to connect
Connect −15 V; bypass locally to 0 V with 100 nF.
Electrical note
This is not signal ground in the split-supply example.
PIN 12 · Analog inputs
Non-inverting inputIND+
Function
Channel D positive input.
How to connect
Connect to the common 0.40 V input in the example.
Electrical note
Stay within the specified input common-mode range.
PIN 13 · Analog inputs
Inverting inputIND−
Function
Channel D negative-feedback node.
How to connect
Join directly to OUTD for a follower.
PIN 14 · Analog outputs
Analog outputOUTD
Function
Channel D output.
How to connect
Connect to its own negative input; no external load in this example.
Electrical note
Output swing requires supply headroom.