Is there a pin-compatible replacement for REF193GSZ-REEL?

Currently, no pin-for-pin compatible replacement is confirmed. While candidates like REF196GSZ-REEL7 share the SOIC-8 package, their internal function and pin roles differ due to the topology change from Shunt to Series.

What risks should I check before replacing REF193GSZ-REEL?

The main risks are the change in topology (Shunt vs. Series), which requires a different circuit configuration, and the different output voltage (e.g., 3.3V vs. 3.0V). Always verify the datasheet and redesign the circuit accordingly.

REF193GSZ-REEL Alternatives, Datasheet & Cross Reference | Analog Devices, Inc.

REF193GSZ-REEL is a 3.0V shunt voltage reference in an SOIC-8 package. Finding a direct replacement is challenging as similar parts often differ in topology or output voltage, requiring circuit redesign.

AI replacement insight

Electrical riskhigh

Topology and output voltage mismatch requires redesign.

Package risklow

Package is a compatible SOIC-8.

Can it be replaced directly?

No direct, drop-in replacement for REF193GSZ-REEL is available among the candidates. All require significant engineering review.

Best replacement path

Circuit redesign using a modern series or shunt reference that meets the 3.0V requirement.

Main risk

The fundamental difference in topology (Shunt vs. Series) between the target and candidates prevents direct substitution.

Recommended alternatives

Shares the same package but requires redesign due to different topology (Series vs. Shunt) and a 3.3V output.

View details

Alternative comparison matrix

Feature / factor	REF193GSZ-REEL	REF196GSZ-REEL	REF196GSZ-REEL7	Compatibility / risk
Package	SOIC-8	SOIC-8	SOIC-8	SOIC-8 — Package is form-factor compatible.; REF196GSZ-REEL7: Package is form-factor compatible.
Topology	Shunt References	Series Reference	Series Reference	Series Reference — Fundamentally different operation, requires circuit redesign.; REF196GSZ-REEL7: Fundamentally different operation, requires circuit redesign.
Voltage	3.0V	3.3V	3.3V	3.3V — Output voltage is 10% higher.; REF196GSZ-REEL7: Output voltage is 10% higher.
Current	30mA	-	30mA	30mA — Output current capability matches.

Application & sourcing insights

Questions & answers

No direct drop-in replacement has been identified. The REF196 series (e.g., REF196GSZ-REEL7) is in the same family but uses a Series topology and has a 3.3V output, requiring circuit redesign.