Is there a pin-compatible replacement for TLC2272CDR?

Several dual op-amps exist in the same SOIC-8 package with a standard pinout. However, pin-compatibility does not guarantee electrical compatibility. For example, AD8667ARZ is pin-compatible but has significantly lower bandwidth and slew rate, making it a high-risk downgrade.

TLC2272CDR Alternatives, Datasheet & Cross Reference | Texas Instruments

TLC2272CDR is a popular dual rail-to-rail output op-amp from Texas Instruments. Finding a substitute requires matching the dual-channel configuration, SOIC-8 package, rail-to-rail output, and key AC performance like bandwidth and slew rate.

AI replacement insight

Electrical riskhigh

Mismatches in bandwidth, slew rate, output swing, and supply voltage are common.

Package risklow

The SOIC-8 package is standard, but watch for variants with exposed pads.

Sourcing riskmedium

The target is an older but active part; modern replacements may have better availability but require design changes.

Can it be replaced directly?

No, there is no direct, risk-free replacement for the TLC2272CDR among the candidates reviewed. All options have significant parametric or functional differences.

Best replacement path

No direct upgrade or pin-to-pin match was found. The best path is to re-evaluate circuit needs and select a modern op-amp, accepting that a board redesign may be necessary.

Main risk

The primary risk is AC performance degradation. Most candidates are either much slower, functionally different, or have incompatible supply voltage ranges.

Recommended alternatives

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Alternative comparison matrix

Feature / factor	TLC2272CDR	AD8667ARZ-REEL7	Compatibility / risk
Package	SOIC-8	SOIC-8	SOIC-8 — Candidate and target share the same standard SOIC-8 package.
Channels	2	2	2 — Both are dual-channel amplifiers.
Voltage	4.4V to 16V	5V to 16V	5V to 16V — Candidate has a higher minimum operating voltage, incompatible with systems below 5V.
Bandwidth	2.2 MHz	0.54 MHz	0.54 MHz — Candidate bandwidth is ~75% lower, unsuitable for signals >~50kHz.
Slew Rate	3.6 V/µs	0.3 V/µs	0.3 V/µs — Candidate slew rate is over 10x slower, will distort fast-rising signals.
Input Bias Current	1 pA	45 pA	45 pA — Candidate has higher input bias current, which may be an issue in high-impedance sensor circuits.

Application & sourcing insights

Questions & answers

Finding a direct, drop-in replacement for the TLC2272CDR is challenging due to its specific combination of rail-to-rail output, low input bias current, and 2.2 MHz bandwidth. Alternatives often involve trade-offs in speed, noise, or supply voltage. Careful review of circuit requirements is essential.

Key risks include: 1) AC Performance: Ensure the substitute's Gain-Bandwidth Product and Slew Rate are sufficient for your application's signal frequency. 2) Output Swing: Verify the replacement also has rail-to-rail output if your circuit relies on it. 3) Supply Voltage: Check that the substitute's operating voltage range matches your system's power rails. 4) Input Characteristics: Compare input bias current and offset voltage for precision applications.