MAX922CSA-T Equivalent & Substitute Parts

Part Overview

The MAX922CSA-T is a dual general-purpose comparator manufactured by Analog Devices Inc./Maxim Integrated, housed in an 8-SOIC surface-mount package. This device is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The MAX922CSA-T operates across a wide supply voltage range with CMOS and TTL output compatibility, suitable for general-purpose comparison applications requiring moderate propagation delay and low quiescent current.

Substiute Parts

MAX922CSA-T

Analog Devices Inc./Maxim IntegratedIn Stock: 1075MAX922CSA-T Datasheet

Current PartRFQ

MAX922CSA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 2979MAX922CSA+T Datasheet

DirectRFQ

SC2903VDR2G

onsemiIn Stock: 832SC2903VDR2G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the MAX922CSA-T is determined by strict alignment of electrical and mechanical parameters within the general-purpose comparator category. The following criteria establish valid substitution:

Primary Substitution Criteria:

• Package type: 8-SOIC surface-mount form factor
• Number of elements: Dual comparator configuration
• Output type compatibility: CMOS and/or TTL output capability
• Supply voltage range: Minimum coverage of 2.5V ~ 11V single supply or ±1.25V ~ 5.5V dual supply
• Input offset voltage: Maximum 10mV @ 5V
• Output current capability: Minimum 50mA typical
• Quiescent current: Maximum 5µA
• Propagation delay: Maximum 12µs
• Operating temperature range: Minimum 0°C ~ 70°C coverage

Substitute parts must maintain compatibility across all specified electrical parameters and physical packaging to ensure direct functional replacement without circuit redesign.

Parameter Comparison

Engineering Selection Recommendations

MAX922CSA+T (Direct Substitute): The MAX922CSA+T is the primary equivalent for the MAX922CSA-T. Both parts share identical electrical specifications, operating parameters, and package configuration. The MAX922CSA+T is currently in active production status, providing supply continuity for the obsolete MAX922CSA-T. The only distinction is packaging format: MAX922CSA+T is supplied in Tape & Reel (TR) configuration versus the standard packaging of the original part. Both maintain ROHS3 compliance and MSL 1 rating. This part is the direct functional replacement.

SC2903VDR2G (Alternative Substitute): The SC2903VDR2G, manufactured by onsemi, provides an alternative comparator solution within the same 8-SOIC package footprint. This part supports a broader supply voltage range (2V ~ 36V) compared to the MAX922CSA-T specification. However, the SC2903VDR2G is also classified as obsolete. Key electrical parameters including input offset voltage, quiescent current, CMRR/PSRR, and propagation delay are not specified for this device. The output current capability is 20mA typical, which is lower than the 50mA specification of the MAX922CSA-T. The SC2903VDR2G carries AEC-Q100 automotive qualification. Selection of this part requires confirmation that unspecified parameters meet application requirements.

Frequently Asked Questions (FAQ)

Q: Can MAX922CSA+T directly replace MAX922CSA-T without circuit modification? A: Yes. The MAX922CSA+T is electrically and mechanically identical to the MAX922CSA-T. Both parts feature the same dual comparator configuration, identical supply voltage ranges, input offset voltage, output current capability, propagation delay, and operating temperature range. The only difference is packaging format (Tape & Reel versus standard). No circuit redesign is required.

Q: What is the key difference between MAX922CSA+T and SC2903VDR2G? A: The MAX922CSA+T maintains full electrical specification alignment with the original MAX922CSA-T, including 50mA output current, 80dB CMRR/PSRR, and 12µs maximum propagation delay. The SC2903VDR2G offers a wider supply voltage range (2V ~ 36V) but specifies only 20mA output current and does not provide complete electrical parameter documentation. Selection depends on whether the application requires the full electrical specifications of the MAX922 series or can operate within the SC2903 parameter set.

Q: Are all substitute parts RoHS compliant? A: Yes. Both MAX922CSA+T and SC2903VDR2G are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the compliance profile of the original MAX922CSA-T.

Q: Why is the MAX922CSA-T marked as obsolete? A: The MAX922CSA-T is classified as obsolete by the manufacturer. The MAX922CSA+T, supplied in Tape & Reel packaging, represents the active production equivalent and is the recommended source for new designs and ongoing procurement.

Q: Can SC2903VDR2G be used in all MAX922CSA-T applications? A: The SC2903VDR2G shares the same 8-SOIC package and dual comparator configuration. However, incomplete electrical parameter specification for this part requires application-specific evaluation. The 20mA output current rating is lower than the MAX922CSA-T specification of 50mA. Applications requiring the full electrical performance envelope of the MAX922CSA-T should use MAX922CSA+T as the primary substitute.