Is there a pin-compatible replacement for LM324DR2G?

Yes, the LM2902DR2G shares the same 14-SOIC package and pinout, making it a strong candidate for pin-compatible replacement. However, always verify the datasheet as minor parametric differences, like input bias current, may affect sensitive applications.

What risks should I check before replacing LM324DR2G?

Key risks include differences in input bias current, offset voltage, and dynamic performance like bandwidth and slew rate. Also, ensure the replacement's temperature range and supply voltage are suitable for your design. Using a much faster op-amp can also cause instability.

LM324DR2G Alternatives, Datasheet & Cross Reference | onsemi

The LM324DR2G is a widely used quad operational amplifier from onsemi. Finding a suitable replacement involves matching its SOIC-14 package, pinout, and key electrical characteristics like supply voltage and bandwidth.

AI replacement insight

Electrical risklow

Most alternatives have different speed or input characteristics.

Package risklow

Many candidates share the common SOIC-14 package.

Sourcing risklow

The LM324 family is widely sourced with many alternatives available.

Can it be replaced directly?

Yes, the LM2902DR2G is a strong direct replacement candidate, sharing the same manufacturer, package, and pinout, but has a slightly higher input bias current.

Best replacement path

The LM2902DR2G is the recommended upgrade path, offering a wider industrial temperature range from the same manufacturer.

Main risk

The primary risk when substituting is ensuring parametric compatibility, especially for bandwidth, slew rate, and input characteristics, which can affect circuit stability and precision.

Recommended alternatives

Industrial grade version of the target with a wider operating temperature range and same package.

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Alternative comparison matrix

Feature / factor	LM324DR2G	LM2902DR2G	LT1499CS#PBF	Compatibility / risk
Package	14-SOIC (0.154", 3.90mm Width)	14-SOIC	14-SOIC (0.154", 3.90mm Width)	14-SOIC / 14-SOIC (0.154", 3.90mm Width) — Package is form-factor compatible.; LT1499CS#PBF: Package is form-factor compatible.
Temperature	0°C to +70°C	-40°C to +105°C	-	-40°C to +105°C — Wider industrial temperature range.
Voltage	3V to 32V	3V to 32V	-	3V to 32V — Supply voltage range matches.
Current	100nA	250nA	-	250nA — Input bias current is higher.
Pinout	14	-	14 (assumed)	14 (assumed) — Pin count missing from data; requires datasheet verification.
Application	~0.5V/µs	-	6V/µs	6V/µs — Slew rate is much higher.

Application & sourcing insights

Questions & answers

The LM2902DR2G is an excellent alternative from the same manufacturer, onsemi. It offers a wider industrial temperature range (-40°C to 105°C) with very similar electrical characteristics.