Is there a pin-compatible replacement for LM224DR?

Several quad op-amps like LM324A-SR and TP2584-SR come in the same SOIC-14 package with a standard pinout, making them potential pin-compatible replacements. However, electrical differences require verification.

What risks should I check before replacing LM224DR?

Key risks include supply voltage compatibility, bandwidth/slew rate changes affecting stability, and differences in output swing (e.g., rail-to-rail vs. non-rail-to-rail) which can alter circuit behavior.

LM224DR Alternatives, Datasheet & Cross Reference | Texas Instruments

LM224DR is a general-purpose quad operational amplifier from Texas Instruments, known for its wide 3V to 32V supply range. Finding a substitute involves matching this voltage range, package, and key AC/DC parameters.

AI replacement insight

Electrical riskmedium

Bandwidth, slew rate, and output stage (RRIO) differences are common and need review for circuit stability.

Package risklow

SOIC-14 is a standard package with a common pinout for quad op-amps.

Sourcing risklow

The LM224/324 family is a multi-sourced industry standard, providing many sourcing options.

Can it be replaced directly?

Yes, LM324A-SR is a strong candidate for replacing LM224DR, offering a similar profile in the same package, but electrical differences like its rail-to-rail output must be reviewed.

Best replacement path

For a close match, consider LM324A-SR, verifying the slight bandwidth reduction is acceptable. For an upgrade, TP2584-SR offers better specs but requires stability analysis.

Main risk

The primary risk is substituting a low-voltage (5V) op-amp, which is incompatible with the LM224DR's 32V maximum supply voltage.

Recommended alternatives

A cross-vendor alternative from the LM324 family with a wider temperature range and rail-to-rail output.

View details

Alternative comparison matrix

Feature / factor	LM224DR	LM324A-SR	TP2584-SR	Compatibility / risk
Package	SOIC-14	SOIC-14	SOIC-14	SOIC-14 — Package matches.; TP2584-SR: Package matches.
Voltage	3V to 32V	3V to 36V	3V to 36V	3V to 36V — Wider supply range.; TP2584-SR: Wider supply range.
Temperature	-25°C to 85°C	-40°C to 125°C	-	-40°C to 125°C — Wider operating temperature range.
Gbp	1.2 MHz	0.9 MHz	10 MHz	0.9 MHz / 10 MHz — Slightly lower gain bandwidth product.; TP2584-SR: Significantly higher bandwidth may affect stability.
Output Type	Non-RRIO	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail — Candidate has RRIO, target does not.; TP2584-SR: Candidate has RRIO, target does not.
Slew Rate	0.5 V/µs	-	8 V/µs	8 V/µs — Significantly higher slew rate.
Vos	3 mV	-	Not listed	Not listed — Input offset voltage not found in key attributes.

Application & sourcing insights

Questions & answers

LM324A-SR from 3PEAK is a strong alternative, offering a similar profile and wider temperature range. TP2584-SR is a higher-performance option, but requires circuit review.