MAX924CSE-T Equivalent & Substitute Parts

Part Overview

The MAX924CSE-T is a quad comparator with integrated voltage reference manufactured by Analog Devices Inc./Maxim Integrated. This CMOS/TTL output comparator operates across single supply (2.5V to 11V) and dual supply (±1.25V to ±5.5V) configurations in a 16-SOIC surface mount package. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. Direct substitutes and manufacturer-recommended alternatives are available from Analog Devices' active product portfolio.

Key Parameters

Parameter	MAX924CSE-T
Manufacturer	Analog Devices Inc./Maxim Integrated
Product Status	Obsolete
Number of Elements	4
Output Type	CMOS, TTL
Voltage Supply (Single/Dual)	2.5V ~ 11V, ±1.25V ~ 5.5V
Input Offset Voltage (Max)	10mV @ 5V
Output Current (Typ)	50mA
Quiescent Current (Max)	11µA
CMRR / PSRR (Typ)	80dB / 80dB
Propagation Delay (Max)	12µs
Operating Temperature	0°C ~ 70°C
Package	16-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the MAX924CSE-T is determined by the following critical parameters:

Primary Substitution Criteria:

Number of comparator elements: 4
Output type: CMOS, TTL
Package type: 16-SOIC surface mount
Supply voltage compatibility: Minimum 2.5V single supply or ±1.25V dual supply
Input offset voltage: 10mV @ 5V maximum
Propagation delay: 12µs maximum
CMRR/PSRR: 80dB minimum
RoHS3 compliance
MSL rating: 1 (Unlimited)

Substitute Categories:

Category 1: Direct Equivalent (Identical Specifications) MAX924CSE+T meets all electrical and mechanical parameters of the obsolete MAX924CSE-T. The only difference is packaging format (Tape & Reel vs. tube), which does not affect functional compatibility. This part is active and recommended for direct replacement.

Category 2: Manufacturer-Recommended Alternatives (LTC1443 Series) LTC1443CS#PBF, LTC1443CS#TRPBF, LTC1443IS#PBF, and LTC1443IS#TRPBF are manufacturer-recommended substitutes. These parts maintain identical electrical specifications (80dB CMRR/PSRR, 12µs propagation delay, 10mV input offset) and package footprint. Differences include:

Extended temperature range options (LTC1443IS variants: -40°C to 85°C vs. standard 0°C to 70°C)
Lower typical output current (0.015mA @ 5V vs. 50mA)
Slightly lower quiescent current (8.5µA vs. 11µA)
Packaging options: Tube or Tape & Reel

Category 3: Manufacturer-Recommended Alternatives (LTC1445 Series) LTC1445CS#PBF, LTC1445CS#TRPBF, LTC1445IS#PBF, and LTC1445IS#TRPBF are manufacturer-recommended substitutes with integrated 50mV hysteresis. These parts maintain all core electrical specifications and package footprint. Differences include:

Integrated 50mV hysteresis (not present in MAX924CSE-T)
Extended temperature range options (LTC1445IS variants: -40°C to 85°C)
Lower typical output current (0.015mA @ 5V vs. 50mA)
Slightly lower quiescent current (8.5µA vs. 11µA)
Packaging options: Tube or Tape & Reel

All substitute parts are active products with ROHS3 compliance and MSL rating 1 (Unlimited).

Parameter Comparison

Part Number	Manufacturer	Status	Elements	Output Type	Supply Voltage	Input Offset (Max)	Quiescent Current (Max)	CMRR/PSRR	Prop. Delay (Max)	Temp Range	Hysteresis	Package	Packaging Format
MAX924CSE-T	Analog Devices/Maxim	Obsolete	4	CMOS, TTL	2.5V~11V, ±1.25V~5.5V	10mV @ 5V	11µA	80dB/80dB	12µs	0°C~70°C	—	16-SOIC	Tube
MAX924CSE+T	Analog Devices/Maxim	Active	4	CMOS, TTL	2.5V~11V, ±1.25V~5.5V	10mV @ 5V	11µA	80dB/80dB	12µs	0°C~70°C	—	16-SOIC	Tape & Reel
LTC1443CS#PBF	Analog Devices	Active	4	CMOS, TTL	2V~11V, ±1V~5.5V	10mV @ 5V	8.5µA	80dB/80dB	12µs	0°C~70°C	—	16-SOIC	Tube
LTC1443CS#TRPBF	Analog Devices	Active	4	CMOS, TTL	2V~11V, ±1V~5.5V	10mV @ 5V	8.5µA	80dB/80dB	12µs	0°C~70°C	—	16-SOIC	Tape & Reel
LTC1443IS#PBF	Analog Devices	Active	4	CMOS, TTL	2V~11V, ±1V~5.5V	10mV @ 5V	8.5µA	80dB/80dB	12µs	-40°C~85°C	—	16-SOIC	Tube
LTC1443IS#TRPBF	Analog Devices	Active	4	CMOS, TTL	2V~11V, ±1V~5.5V	10mV @ 5V	8.5µA	80dB/80dB	12µs	-40°C~85°C	50mV	16-SOIC	Tape & Reel
LTC1445CS#PBF	Analog Devices	Active	4	CMOS, TTL	2V~11V, ±1V~5.5V	10mV @ 5V	8.5µA	80dB/80dB	12µs	0°C~70°C	50mV	16-SOIC	Tube
LTC1445CS#TRPBF	Analog Devices	Active	4	CMOS, TTL	2V~11V, ±1V~5.5V	10mV @ 5V	8.5µA	80dB/80dB	12µs	0°C~70°C	50mV	16-SOIC	Tape & Reel
LTC1445IS#PBF	Analog Devices	Active	4	CMOS, TTL	2V~11V, ±1V~5.5V	10mV @ 5V	8.5µA	80dB/80dB	12µs	-40°C~85°C	50mV	16-SOIC	Tube
LTC1445IS#TRPBF	Analog Devices	Active	4	CMOS, TTL	2V~11V, ±1V~5.5V	10mV @ 5V	8.5µA	80dB/80dB	12µs	-40°C~85°C	50mV	16-SOIC	Tape & Reel

Engineering Selection Recommendations

For Direct Replacement (No Design Changes Required): MAX924CSE+T is the primary choice for direct substitution. It maintains identical electrical specifications and operating temperature range (0°C to 70°C) as the obsolete MAX924CSE-T. The only difference is packaging format (Tape & Reel), which does not affect circuit performance. This part is active and carries ROHS3 compliance with MSL rating 1.

For Extended Temperature Range Applications: LTC1443IS#PBF, LTC1443IS#TRPBF, LTC1445IS#PBF, and LTC1445IS#TRPBF support extended operating temperature range (-40°C to 85°C). These parts are suitable for applications requiring wider temperature operation while maintaining all core electrical specifications. All variants are active products with ROHS3 compliance.

For Applications Requiring Hysteresis: LTC1445 series (LTC1445CS#PBF, LTC1445CS#TRPBF, LTC1445IS#PBF, LTC1445IS#TRPBF) integrate 50mV hysteresis. This feature reduces noise sensitivity in comparator applications. These parts maintain identical propagation delay, CMRR/PSRR, and input offset voltage specifications. Available in both standard (0°C to 70°C) and extended (−40°C to 85°C) temperature ranges.

For Standard Temperature Range Without Hysteresis: LTC1443CS#PBF and LTC1443CS#TRPBF operate across 0°C to 70°C without integrated hysteresis. These parts offer lower quiescent current (8.5µA vs. 11µA) compared to MAX924CSE-T while maintaining all critical electrical parameters.

All substitute parts are manufactured by Analog Devices, carry ROHS3 compliance, and feature MSL rating 1 (Unlimited).

Frequently Asked Questions (FAQ)

Q: Can MAX924CSE+T be used as a direct replacement for MAX924CSE-T? A: Yes. MAX924CSE+T is electrically and functionally identical to MAX924CSE-T. The difference is packaging format (Tape & Reel vs. tube), which does not affect circuit operation. Both parts operate across 2.5V to 11V single supply or ±1.25V to ±5.5V dual supply with identical propagation delay (12µs), input offset voltage (10mV @ 5V), and CMRR/PSRR (80dB).

Q: What is the difference between LTC1443 and LTC1445 series? A: The primary difference is integrated hysteresis. LTC1443 series has no hysteresis, while LTC1445 series includes 50mV hysteresis. Both maintain identical propagation delay (12µs), input offset voltage (10mV @ 5V), and CMRR/PSRR (80dB). Hysteresis reduces noise sensitivity in comparator circuits. Both series are available in standard (0°C to 70°C) and extended (-40°C to 85°C) temperature ranges.

Q: Are all substitute parts pin-compatible with MAX924CSE-T? A: Yes. All substitute parts use 16-SOIC package with identical pinout and footprint. They are surface mount compatible with existing PCB designs.

Q: What is the difference between tube and Tape & Reel packaging? A: Tube packaging is used for manual handling and lower-volume applications. Tape & Reel packaging is used for automated assembly and higher-volume production. Electrical specifications are identical; packaging format only affects handling and assembly methods.

Q: Can LTC1445 series be used in applications designed for MAX924CSE-T? A: Yes, with design consideration. LTC1445 series includes 50mV hysteresis, which is not present in MAX924CSE-T. This hysteresis reduces noise sensitivity but may affect circuit behavior in applications with very small input signal transitions. All other electrical parameters (propagation delay, input offset voltage, CMRR/PSRR, supply voltage range) are compatible.

Q: Which substitute part offers the lowest quiescent current? A: LTC1443 and LTC1445 series offer 8.5µA maximum quiescent current, compared to 11µA for MAX924CSE-T. This represents approximately 23% lower power consumption.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All substitute parts listed carry ROHS3 compliance and MSL rating 1 (Unlimited), meeting environmental and reliability standards.

Q: What is the minimum supply voltage for LTC1443 and LTC1445 series? A: LTC1443 and LTC1445 series support 2V minimum single supply (vs. 2.5V for MAX924CSE-T) and ±1V minimum dual supply (vs. ±1.25V for MAX924CSE-T). This provides slightly wider supply voltage flexibility.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message