MAX9032ASA-T Equivalent & Substitute Parts

Part Overview

The MAX9032ASA-T is a dual general-purpose comparator manufactured by Analog Devices Inc./Maxim Integrated, featuring push-pull, rail-to-rail output architecture in an 8-SOIC package. This device is classified as obsolete, though 1080 pieces remain in new original stock. Due to its obsolete status, identifying functionally equivalent active alternatives is essential for design continuity and long-term supply chain reliability. Substitute parts must maintain compatibility across electrical performance, package form factor, and operational temperature ranges to ensure drop-in replacement capability.

Key Parameters

Parameter	MAX9032ASA-T
Manufacturer	Analog Devices Inc./Maxim Integrated
Category	Linear - Comparator
Type	General Purpose
Number of Elements	2
Output Type	Push-Pull, Rail-to-Rail
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Voltage - Supply, Single/Dual (±)	2.5V ~ 5.5V
Voltage - Input Offset (Max)	1mV @ 5V
Current - Input Bias (Max)	0.008µA @ 5V
Current - Quiescent (Max)	55µA
CMRR, PSRR (Typ)	100dB CMRR, 100dB PSRR
Propagation Delay (Max)	228ns
Hysteresis	4mV
Operating Temperature	-40°C ~ 125°C
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the MAX9032ASA-T is determined by the following critical parameters:

Primary Compatibility Criteria:

Dual comparator configuration (2 elements)
Push-pull output capability
8-pin SOIC package form factor (0.154" or 0.173" width variants acceptable for PCB layout compatibility)
Supply voltage range overlap with 2.5V ~ 5.5V specification
Surface mount technology

Secondary Performance Criteria:

Input offset voltage ≤ 1mV @ 5V (preferred) or ≤ 30mV (acceptable for less precision-critical applications)
Input bias current ≤ 1pA (preferred) or ≤ 0.008µA (acceptable)
Quiescent current ≤ 500µA (acceptable variance from 55µA baseline)
Operating temperature range minimum of -40°C (extended to 125°C preferred but 85°C acceptable for most industrial applications)
CMRR/PSRR ≥ 70dB (acceptable performance margin)

Compliance Requirements:

ROHS3 compliance mandatory
MSL rating of 1 (Unlimited) preferred

Substitute parts are grouped into two categories: direct pin-compatible replacements (MAX9032ASA+T) and functionally equivalent alternatives with minor parameter variations (ALD2302 series, AZV3002S-13, BU7232/BU7252 series, HA1631 series, LMC6762AIM/NOPB).

Parameter Comparison

Part Number	Manufacturer	Product Status	Output Type	Supply Voltage	Input Offset (Max)	Input Bias (Max)	Quiescent Current (Max)	Propagation Delay (Max)	Operating Temp	Package
MAX9032ASA-T	Analog Devices	Obsolete	Push-Pull, Rail-to-Rail	2.5V ~ 5.5V	1mV @ 5V	0.008µA @ 5V	55µA	228ns	-40°C ~ 125°C	8-SOIC (0.154")
MAX9032ASA+T	Analog Devices	Active	Push-Pull, Rail-to-Rail	2.5V ~ 5.5V	1mV @ 5V	0.008µA @ 5V	55µA	228ns	-40°C ~ 125°C	8-SOIC (0.154")
ALD2302ASAL	Advanced Linear Devices	Active	CMOS, NMOS, Push-Pull, TTL	4V ~ 10V, ±2V ~ 5V	1mV @ 5V	0.001µA @ 5V	500µA	—	0°C ~ 70°C	8-SOIC (0.154")
ALD2302SAL	Advanced Linear Devices	Active	CMOS, NMOS, Push-Pull, TTL	4V ~ 10V, ±2V ~ 5V	4mV @ 5V	0.001µA @ 5V	500µA	—	0°C ~ 70°C	8-SOIC (0.154")
AZV3002S-13	Diodes Incorporated	Active	Push-Pull	1.6V ~ 5.5V	30mV	1pA	9µA (Typ)	0.8µs	-40°C ~ 85°C	8-SOIC (0.154")
BU7232F-E2	Rohm Semiconductor	Active	Push-Pull	1.8V ~ 5.5V, ±0.9V ~ 2.75V	11mV @ 3V	1pA @ 3V	25µA	1.7µs	-40°C ~ 85°C	8-SOIC (0.173")
BU7232SF-E2	Rohm Semiconductor	Active	Push-Pull	1.8V ~ 5.5V, ±0.9V ~ 2.75V	11mV @ 3V	1pA @ 3V	25µA	1.7µs	-40°C ~ 105°C	8-SOIC (0.173")
BU7252SF-E2	Rohm Semiconductor	Active	Push-Pull	1.8V ~ 5.5V, ±0.9V ~ 2.75V	11mV @ 3V	1pA @ 3V	65µA	550ns	-40°C ~ 105°C	8-SOIC (0.173")
HA1631D01TEL-E	Renesas Electronics	Active	Open-Drain, Push-Pull	1.8V ~ 5.5V	5mV	1pA	20µA	—	-40°C ~ 85°C	8-TSSOP (0.173")
HA1631D02MMEL-E	Renesas Electronics	Active	Open-Drain, Push-Pull	1.8V ~ 5.5V	5mV	1pA	200µA	—	-40°C ~ 85°C	8-TSSOP, 8-MSOP (0.110")
LMC6762AIM/NOPB	National Semiconductor	Active	Push-Pull, Rail-to-Rail	2.7V ~ 15V, ±1.35V ~ 7.5V	5mV @ 5V	0.04pA @ 5V	20µA	10µs	-40°C ~ 85°C	8-SOIC (0.154")

Engineering Selection Recommendations

Tier 1 - Direct Replacement (Recommended): MAX9032ASA+T is the primary substitute. This part maintains identical electrical specifications, package dimensions, and pin configuration as the obsolete MAX9032ASA-T. Active product status ensures long-term availability. Both parts are ROHS3 compliant with MSL rating of 1 (Unlimited). Packaging format (Cut Tape & Digi-Reel) provides supply flexibility. No design modifications required.

Tier 2 - Pin-Compatible Functional Equivalents: LMC6762AIM/NOPB offers superior supply voltage range (2.7V ~ 15V) and extended temperature operation (-40°C ~ 85°C). Input offset of 5mV @ 5V and propagation delay of 10µs represent acceptable performance trade-offs for applications not requiring sub-1mV offset precision. Rail-to-rail output architecture matches the original specification. ROHS3 compliant, MSL 1 (Unlimited).

Tier 3 - Package-Compatible Alternatives with Parameter Variations: BU7232SF-E2 and BU7252SF-E2 (Rohm Semiconductor) provide extended temperature operation to 105°C and active product status. BU7252SF-E2 offers faster propagation delay (550ns vs. 228ns baseline). Package width increases to 0.173" (4.40mm) but maintains 8-SOIC pinout compatibility. Input offset of 11mV @ 3V represents a trade-off for applications with relaxed precision requirements.

AZV3002S-13 (Diodes Incorporated) supports lower supply voltage floor (1.6V) with minimal quiescent current (9µA typical). Input offset of 30mV limits use to applications tolerating higher threshold variation. Operating temperature range (-40°C ~ 85°C) is acceptable for industrial applications.

Tier 4 - Alternative Package Formats: HA1631D01TEL-E and HA1631D02MMEL-E (Renesas Electronics) employ 8-TSSOP packaging. These devices require PCB layout modifications but offer superior input bias current (1pA) and low quiescent current (20µA or 200µA variants). Open-drain output option provides additional circuit design flexibility. Operating temperature range (-40°C ~ 85°C) is suitable for most industrial environments.

Compliance Verification: All recommended substitutes maintain ROHS3 compliance and MSL rating of 1 (Unlimited). REACH status is unaffected across all alternatives. ECCN classification remains EAR99 for all parts.

Frequently Asked Questions (FAQ)

Q: Can MAX9032ASA+T be used as a direct replacement for MAX9032ASA-T? A: Yes. MAX9032ASA+T is electrically and mechanically identical to the obsolete MAX9032ASA-T. Pin configuration, package dimensions (8-SOIC, 0.154" width), and all electrical specifications are equivalent. The primary difference is active product status, ensuring continued availability. No design modifications are required.

Q: What is the key difference between BU7232F-E2 and BU7252SF-E2? A: Both devices share identical input offset (11mV @ 3V), input bias current (1pA @ 3V), and supply voltage range (1.8V ~ 5.5V, ±0.9V ~ 2.75V). The primary distinction is propagation delay: BU7252SF-E2 operates at 550ns versus BU7232F-E2 at 1.7µs. BU7252SF-E2 also supports extended temperature operation to 105°C. Select BU7252SF-E2 for timing-critical applications requiring faster response.

Q: Is LMC6762AIM/NOPB compatible with the MAX9032ASA-T supply voltage range? A: LMC6762AIM/NOPB supports 2.7V ~ 15V single supply (or ±1.35V ~ 7.5V dual supply), which overlaps the MAX9032ASA-T range of 2.5V ~ 5.5V. The lower supply limit of 2.7V is slightly higher than 2.5V, requiring verification that your application does not operate below 2.7V. For applications requiring operation at 2.5V, this part is not suitable.

Q: Why do ALD2302ASAL and ALD2302SAL have different input offset specifications? A: ALD2302ASAL specifies 1mV @ 5V input offset, matching the MAX9032ASA-T baseline. ALD2302SAL specifies 4mV @ 5V, representing a higher tolerance variant of the same base product. Select ALD2302ASAL for precision-critical applications requiring ≤1mV offset. ALD2302SAL is acceptable for applications tolerating up to 4mV offset variation.

Q: What are the package dimension differences between 8-SOIC (0.154") and 8-SOIC (0.173")? A: The primary difference is body width: 0.154" (3.90mm) versus 0.173" (4.40mm). Both maintain identical pin pitch and height. PCB footprints are not interchangeable without layout modification. Verify your PCB design accommodates the wider package before selecting BU7232 or BU7252 series alternatives. Consult component datasheets for precise dimensional specifications.

Q: Can HA1631D01TEL-E be used in applications requiring rail-to-rail output? A: HA1631D01TEL-E provides open-drain and push-pull output options. The open-drain configuration does not provide true rail-to-rail output without external pull-up resistors. If your application requires guaranteed rail-to-rail output swing without external components, select MAX9032ASA+T, LMC6762AIM/NOPB, or BU7232/BU7252 series alternatives.

Q: What is the operating temperature trade-off when selecting AZV3002S-13? A: AZV3002S-13 operates from -40°C ~ 85°C, which is 40°C lower than the MAX9032ASA-T maximum of 125°C. This part is suitable for industrial and commercial temperature ranges but not for extended-temperature or automotive applications requiring operation above 85°C. Verify your application's maximum operating temperature requirement before selection.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All recommended substitute parts maintain ROHS3 compliance and MSL rating of 1 (Unlimited), matching the original MAX9032ASA-T environmental specifications. REACH status is unaffected across all alternatives.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message