MAX922CSA+ Equivalent & Substitute Parts

Part Overview

The MAX922CSA+ is a general-purpose dual comparator IC manufactured by Analog Devices Inc./Maxim Integrated. This surface-mount device operates across a wide supply voltage range (2.5V ~ 11V single supply, ±1.25V ~ 5.5V dual supply) and delivers CMOS/TTL output compatibility. The part is Active status and ROHS3 compliant, making it suitable for industrial and commercial applications requiring precision voltage comparison. Equivalent and substitute parts are identified based on matching electrical performance parameters, package compatibility, and operational specifications to ensure direct circuit functionality replacement.

Substiute Parts

MAX922CSA+

Analog Devices Inc./Maxim IntegratedIn Stock: 3752MAX922CSA+ Datasheet

Current PartRFQ

MAX922CSA+

Analog Devices Inc./Maxim IntegratedIn Stock: 3752MAX922CSA+ Datasheet

DirectRFQ

LTC1441CS8#PBF

Analog Devices Inc.In Stock: 1381LTC1441CS8#PBF Datasheet

MFR RecommendedRFQ

LTC1441CS8#TRPBF

Analog Devices Inc.In Stock: 890LTC1441CS8#TRPBF Datasheet

MFR RecommendedRFQ

LTC1441IS8#PBF

Analog Devices Inc.In Stock: 1034LTC1441IS8#PBF Datasheet

MFR RecommendedRFQ

LTC1441IS8#TRPBF

Analog Devices Inc.In Stock: 710LTC1441IS8#TRPBF Datasheet

MFR RecommendedRFQ

TS393CD C3G

Taiwan Semiconductor CorporationIn Stock: 16247TS393CD C3G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MAX922CSA+ are qualified based on the following critical parameters:

• Dual comparator configuration (2 elements minimum)
• Output type compatibility (CMOS and/or TTL output)
• Supply voltage range overlap (minimum 2V ~ 11V single supply capability)
• Input offset voltage (10mV @ 5V or better)
• Output current capability (40mA or greater)
• Quiescent current (5.7µA or lower)
• Common-mode and power-supply rejection (80dB or better)
• Propagation delay (15µs or faster)
• Operating temperature range (0°C ~ 70°C minimum)
• Package compatibility (8-pin SOIC or DIP form factor)
• Surface mount or through-hole mounting (as applicable)
• Active product status and ROHS3 compliance

The LTC1441 series (LTC1441CS8#PBF, LTC1441CS8#TRPBF, LTC1441IS8#PBF, LTC1441IS8#TRPBF) from Analog Devices Inc. meets all electrical and mechanical criteria for direct substitution. The TS393CD C3G from Taiwan Semiconductor Corporation qualifies as a functional equivalent with extended supply voltage range and improved input offset characteristics, though it uses a through-hole 8-DIP package instead of surface-mount SOIC.

Parameter Comparison

Engineering Selection Recommendations

LTC1441 Series (Surface Mount SOIC): The LTC1441CS8#PBF, LTC1441CS8#TRPBF, LTC1441IS8#PBF, and LTC1441IS8#TRPBF variants provide direct electrical and mechanical compatibility with the MAX922CSA+. All LTC1441 variants maintain the same 8-SOIC package footprint, dual comparator configuration, and CMOS/TTL output capability. The primary differences are packaging format (Tube vs. Tape & Reel) and operating temperature range. The industrial-grade LTC1441IS8 series (-40°C ~ 85°C) offers extended temperature operation compared to the commercial-grade LTC1441CS8 series (0°C ~ 70°C). All variants are Active status and ROHS3 compliant.

TS393CD C3G (Through Hole DIP): This Taiwan Semiconductor part qualifies as a functional equivalent with superior electrical characteristics, including lower input offset voltage (2mV vs. 10mV) and extended supply voltage range (2V ~ 36V single supply). However, the 8-DIP through-hole package requires different PCB layout and assembly processes compared to the surface-mount SOIC form factor. This part is suitable only for applications where through-hole mounting is acceptable or preferred. All compliance certifications match the original part.

Selection Criteria:

• For direct drop-in replacement with identical mounting technology: select LTC1441 series in SOIC package
• For extended temperature operation: select LTC1441IS8 variants
• For high-volume production: select Tape & Reel packaging (TRPBF suffix)
• For through-hole assembly or legacy board designs: select TS393CD C3G

Frequently Asked Questions (FAQ)

Q: Can I use LTC1441CS8#PBF as a direct replacement for MAX922CSA+ in production?

A: Yes. The LTC1441CS8#PBF is electrically and mechanically compatible. Both parts feature dual comparators in 8-SOIC surface-mount packages with CMOS/TTL outputs, matching supply voltage ranges (2V ~ 11V single supply), and identical input offset specifications (10mV @ 5V). Operating temperature range is identical (0°C ~ 70°C). Both are Active status and ROHS3 compliant. No circuit modifications are required.

Q: What is the difference between LTC1441CS8#PBF and LTC1441IS8#PBF?

A: The primary difference is operating temperature range. LTC1441CS8#PBF operates 0°C ~ 70°C (commercial grade), while LTC1441IS8#PBF operates -40°C ~ 85°C (industrial grade). Electrical specifications are identical. Select the industrial-grade variant if your application requires extended temperature operation.

Q: What does the #TRPBF suffix mean?

A: The #TRPBF suffix indicates Tape & Reel packaging format, suitable for automated high-volume assembly. The #PBF suffix indicates Tube packaging, suitable for manual assembly or lower-volume production. Electrical performance is identical between packaging formats.

Q: Can I use TS393CD C3G instead of MAX922CSA+?

A: The TS393CD C3G is functionally equivalent but uses a through-hole 8-DIP package instead of surface-mount 8-SOIC. This requires different PCB layout and assembly equipment. Use this part only if your board design supports through-hole mounting or if you are transitioning from legacy through-hole designs. Electrical performance is superior (lower input offset voltage, extended supply range).

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts (LTC1441 series and TS393CD C3G) are ROHS3 compliant with MSL rating 1 (Unlimited), matching the original MAX922CSA+ compliance profile.

Q: What is the propagation delay difference between MAX922CSA+ and LTC1441 variants?

A: MAX922CSA+ has a maximum propagation delay of 12µs, while LTC1441 variants specify 15µs maximum. This 3µs difference is negligible for most general-purpose comparator applications. For timing-critical circuits, verify that the 15µs specification meets your system requirements.

Q: Can I mix packaging formats in the same production run?

A: Yes, provided your assembly process supports both formats. However, for consistency and supply chain management, it is recommended to standardize on a single packaging format per production batch.