MAX922ESA Equivalent & Substitute Parts

Part Overview

The MAX922ESA is a general-purpose dual comparator IC manufactured by Analog Devices Inc./Maxim Integrated in 8-SOIC surface mount packaging. This device is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The MAX922ESA provides CMOS and TTL output configurations suitable for precision voltage comparison applications across industrial and commercial temperature ranges.

Substiute Parts

MAX922ESA

Analog Devices Inc./Maxim IntegratedIn Stock: 3951MAX922ESA Datasheet

Current PartRFQ

MAX922ESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 830MAX922ESA+ Datasheet

DirectRFQ

TS393CD C3G

Taiwan Semiconductor CorporationIn Stock: 16247TS393CD C3G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the MAX922ESA is determined by the following critical parameters:

Electrical Compatibility:

• Dual comparator configuration (2 elements)
• CMOS and TTL output capability
• Supply voltage range: 2.5V ~ 11V single supply or ±1.25V ~ 5.5V dual supply
• Input offset voltage maximum of 10mV @ 5V
• Output current capability of 50mA typical
• Quiescent current maximum of 5µA
• CMRR and PSRR of 80dB typical
• Propagation delay maximum of 12µs
• Operating temperature range: -40°C ~ 85°C

Mechanical & Compliance Compatibility:

• 8-pin package configuration
• Surface mount or through-hole mounting capability
• ROHS3 compliance
• MSL rating of 1 (Unlimited)

The substitute parts listed below meet these electrical and mechanical criteria within the allowed parameter tolerances for this product category.

Parameter Comparison

Engineering Selection Recommendations

MAX922ESA+ (Direct Substitute): The MAX922ESA+ is the direct equivalent from the same manufacturer. It maintains identical electrical specifications and 8-SOIC surface mount packaging. The primary distinction is product status: MAX922ESA+ is active production, whereas the original MAX922ESA is obsolete. This part is the preferred choice for designs requiring exact form-factor and performance match with continued supply availability.

TS393CD C3G (Manufacturer Recommended Alternative): The TS393CD C3G from Taiwan Semiconductor Corporation is an active production alternative that meets the dual comparator, general-purpose application requirements. Key considerations for this substitute:

• Package format differs: 8-DIP through-hole versus 8-SOIC surface mount. PCB layout and assembly process modifications are required.
• Operating temperature range is narrower: 0°C ~ 70°C versus -40°C ~ 85°C. This part is unsuitable for applications requiring the full industrial temperature range of the original.
• Supply voltage range is broader: 2V ~ 36V single supply and ±1V ~ 18V dual supply, providing greater flexibility in power supply design.
• Input offset voltage is superior: 2mV @ 5V versus 10mV @ 5V.
• Output current is reduced: 16mA @ 5V versus 50mA typical.
• Quiescent current is higher: 1mA versus 5µA maximum.

All substitute parts maintain ROHS3 compliance and MSL rating 1 (Unlimited) status.

Frequently Asked Questions (FAQ)

Q: Can MAX922ESA+ be used as a direct replacement for MAX922ESA?

A: Yes. The MAX922ESA+ is electrically and mechanically identical to the MAX922ESA. Both devices feature 8-SOIC surface mount packaging, identical supply voltage ranges, input offset voltage specifications, output current ratings, and operating temperature ranges. The primary difference is product status: MAX922ESA+ is in active production while MAX922ESA is obsolete.

Q: What are the key differences between MAX922ESA and TS393CD C3G?

A: The TS393CD C3G differs in three critical areas: (1) Package format is 8-DIP through-hole instead of 8-SOIC surface mount, requiring PCB redesign; (2) Operating temperature range is limited to 0°C ~ 70°C instead of -40°C ~ 85°C, making it unsuitable for industrial temperature applications; (3) Output current is 16mA @ 5V instead of 50mA typical, which may limit drive capability in certain applications.

Q: Is the TS393CD C3G suitable for applications requiring -40°C ~ 85°C operation?

A: No. The TS393CD C3G operates only within 0°C ~ 70°C. Applications requiring the full industrial temperature range of -40°C ~ 85°C must use MAX922ESA or MAX922ESA+.

Q: What packaging changes are required if switching to TS393CD C3G?

A: The TS393CD C3G uses 8-DIP through-hole packaging versus the 8-SOIC surface mount of MAX922ESA. This requires PCB layout modification, through-hole footprint design, and assembly process changes from surface mount to through-hole insertion.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. MAX922ESA+, TS393CD C3G, and the original MAX922ESA all maintain ROHS3 compliance and MSL rating 1 (Unlimited).

Q: Which substitute part should be selected for new designs?

A: For new surface mount designs requiring -40°C ~ 85°C operation, MAX922ESA+ is the appropriate choice. For through-hole designs with 0°C ~ 70°C operating requirements, TS393CD C3G is suitable. Selection depends on packaging requirements, temperature range specifications, and output current demands of the application.