Is there a pin-compatible replacement for TL072CDT?

Several dual op-amps like TS512AIDT and TJM4558CDT use the same SO-8 package and standard pinout. However, they are not drop-in replacements due to major differences in slew rate and input bias current that require circuit validation.

What risks should I check before replacing TL072CDT?

Key risks are: 1) Electrical: A lower slew rate can distort signals. 2) Parametric: Higher input bias current can create errors in high-impedance circuits. 3) Stability: An op-amp with different bandwidth could oscillate if the circuit isn't compatible.

TL072CDT Alternatives, Datasheet & Cross Reference | STMicroelectronics

The TL072CDT is a popular dual JFET op-amp known for its high slew rate and low input bias current. Finding a replacement requires careful matching of these key parameters in the SO-8 package.

AI replacement insight

Electrical riskhigh

Lower slew rate can cause signal distortion; higher bias current can cause errors.

Package risklow

Candidates share the same SO-8 package and likely standard pinout.

Can it be replaced directly?

No, a direct, fully-compatible replacement for the TL072CDT was not identified. All options present significant parametric trade-offs.

Best replacement path

Select a downgrade candidate like TJM4558CDT and verify its impact on slew rate and input bias current in your application.

Main risk

The primary risk is performance degradation, specifically a much lower slew rate and higher input bias current.

Recommended alternatives

A dual op-amp in the same package, but its much lower slew rate and higher bias current make it a risky downgrade.

View details

Alternative comparison matrix

Feature / factor	TL072CDT	TJM4558CDT	TS512AIDT	Compatibility / risk
Package	SO-8	SO-8	SO-8	SO-8 — Package matches.; TS512AIDT: Package matches.
Voltage	36 V	±22 V	3 V to 30 V	±22 V / 3 V to 30 V — Higher maximum supply voltage.; TS512AIDT: Lower maximum supply voltage.
Slew Rate	16 V/µs	2.2 V/µs	0.8 V/µs	2.2 V/µs / 0.8 V/µs — Significantly lower slew rate.; TS512AIDT: Significantly lower slew rate.
Current	20 pA	50 nA	50 nA	50 nA — Much higher input bias current (bipolar vs JFET).; TS512AIDT: Much higher input bias current, not a JFET input.
Gbp	4 MHz	5.5 MHz	-	5.5 MHz — Higher gain-bandwidth product.
Temperature	0 °C to 70 °C	-	-40 °C to +125 °C	-40 °C to +125 °C — Wider operating temperature range.

Application & sourcing insights

Questions & answers

The best alternative depends on your application's needs. For high-speed signals, matching the 16 V/µs slew rate is crucial. For high-impedance circuits, the low 20 pA input bias current must be maintained. No single candidate matches both well.