MAX922ESA-T Equivalent & Substitute Parts

Part Overview

The MAX922ESA-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 MAX922ESA-T operates across a wide supply voltage range (2.5V ~ 11V single supply, ±1.25V ~ 5.5V dual supply) with CMOS and TTL output compatibility, making it suitable for precision signal comparison applications in industrial and consumer electronics.

Substiute Parts

MAX922ESA-T

Analog Devices Inc./Maxim IntegratedIn Stock: 876MAX922ESA-T Datasheet

Current PartRFQ

MAX922ESA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 7072MAX922ESA+T Datasheet

DirectRFQ

TS393CD C3G

Taiwan Semiconductor CorporationIn Stock: 16247TS393CD C3G Datasheet

MFR RecommendedRFQ

TS393CS RLG

Taiwan Semiconductor CorporationIn Stock: 5385TS393CS RLG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX922ESA-T is determined by the following critical parameters:

• Package Compatibility: 8-pin surface-mount or through-hole configurations
• Functional Equivalence: Dual comparator topology with general-purpose operation
• Output Type: CMOS and/or TTL output capability
• Supply Voltage Range: Minimum coverage of 2.5V ~ 11V single supply or ±1.25V ~ 5.5V dual supply
• Electrical Performance: Input offset voltage, output current, and propagation delay within acceptable operational margins
• Compliance: ROHS3 compliance and EAR99 classification maintained

The identified substitutes are grouped into two categories: direct pin-compatible replacements and functional equivalents with package variations.

Parameter Comparison

Engineering Selection Recommendations

MAX922ESA+T is the primary direct replacement for MAX922ESA-T. Both parts share identical electrical specifications, supply voltage ranges, and performance characteristics. The MAX922ESA+T is currently in active production status with higher inventory availability (7046 units), addressing the obsolescence of the original part. The packaging format differs only in tape-and-reel configuration versus tube, with no functional impact on circuit performance. This substitution requires no design modifications.

TS393CD C3G and TS393CS RLG are functional equivalents manufactured by Taiwan Semiconductor Corporation. Both devices provide superior electrical performance in key parameters: input offset voltage is reduced to 2mV (versus 10mV), and input bias current is specified at 0.025µA. The TS393 series supports an extended supply voltage range (2V ~ 36V single supply, ±1V ~ 18V dual supply), providing greater design flexibility. However, these substitutes present trade-offs: output current is reduced to 16mA, quiescent current increases to 1mA, and operating temperature range narrows to 0°C ~ 70°C. Package differences require board-level design consideration: TS393CD C3G uses 8-DIP through-hole mounting, while TS393CS RLG maintains 8-SOIC surface-mount compatibility. Both TS393 variants are ROHS3 compliant and maintain EAR99 classification.

Selection between MAX922ESA+T and TS393 variants depends on application requirements: choose MAX922ESA+T for direct replacement with identical performance; select TS393 variants only when extended supply voltage range or improved input offset voltage specifications are required and the reduced output current and narrower temperature range are acceptable.

Frequently Asked Questions (FAQ)

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

A: Yes. MAX922ESA+T is electrically and functionally identical to MAX922ESA-T. The only difference is packaging format (tape-and-reel versus tube) and active production status. No circuit modifications are required.

Q: What are the key differences between MAX922ESA-T and TS393 comparators?

A: The TS393 series offers improved input offset voltage (2mV versus 10mV) and extended supply voltage range (2V ~ 36V versus 2.5V ~ 11V). However, TS393 devices have reduced output current (16mA versus 50mA), higher quiescent current (1mA versus 5µA), and narrower operating temperature range (0°C ~ 70°C versus -40°C ~ 85°C). Package options differ: TS393CD C3G is 8-DIP through-hole; TS393CS RLG is 8-SOIC surface-mount.

Q: Which substitute should I use if my PCB is designed for surface-mount components?

A: MAX922ESA+T or TS393CS RLG are both 8-SOIC surface-mount packages. MAX922ESA+T maintains identical electrical specifications; TS393CS RLG provides improved input offset voltage but reduced output current capability.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. MAX922ESA+T, TS393CD C3G, and TS393CS RLG are all ROHS3 compliant with EAR99 classification, matching the compliance profile of the original MAX922ESA-T.

Q: What is the impact of MSL rating differences on component handling?

A: MAX922ESA+T and TS393CD C3G have MSL 1 (unlimited moisture sensitivity level), requiring no special storage conditions. TS393CS RLG has MSL 3 (168 hours), requiring controlled humidity storage and bake-out procedures before reflow soldering if the component has been exposed to ambient conditions for extended periods.

Q: Can TS393 comparators operate at the full temperature range of MAX922ESA-T?

A: No. TS393 devices operate from 0°C to 70°C, while MAX922ESA-T operates from -40°C to 85°C. TS393 substitutes are unsuitable for applications requiring extended low-temperature operation below 0°C or high-temperature operation above 70°C.