BU7232SFVM-TR Equivalent & Substitute Parts

Part Overview

The BU7232SFVM-TR is a general-purpose dual comparator IC manufactured by Rohm Semiconductor in 8-MSOP surface mount packaging. This device features push-pull output configuration with supply voltage range of 1.8V to 5.5V (single supply) or ±0.9V to ±2.75V (dual supply). The part is currently active in production status with RoHS3 compliance and unlimited moisture sensitivity level (MSL 1).

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this product category. Substitution is necessary when the primary part becomes unavailable, when alternative packaging formats are required for manufacturing optimization, or when design flexibility demands parts from multiple qualified suppliers.

Key Parameters

Parameter	BU7232SFVM-TR Specification
Manufacturer	Rohm Semiconductor
Package Type	8-MSOP (0.110", 2.80mm Width)
Number of Comparators	2
Output Type	Push-Pull
Supply Voltage Range	1.8V ~ 5.5V (Single), ±0.9V ~ ±2.75V (Dual)
Input Offset Voltage (Max)	11mV @ 3V
Input Bias Current (Max)	1pA @ 3V
Output Current (Typ)	6mA @ 3V
Quiescent Current (Max)	25µA
CMRR / PSRR (Typ)	80dB / 80dB
Propagation Delay (Max)	1.7µs
Operating Temperature	-40°C ~ 105°C
Product Status	Active
RoHS Compliance	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the BU7232SFVM-TR is determined by the following critical parameters:

Electrical Compatibility Requirements:

Dual comparator configuration (2 elements)
Push-pull or push-pull with rail-to-rail output capability
Supply voltage range overlap with 1.8V ~ 5.5V minimum specification
Input offset voltage not exceeding 11mV at nominal operating voltage
Input bias current specification of 1pA or lower
Output current capability of 6mA or greater
Quiescent current not exceeding 25µA
CMRR and PSRR minimum 80dB
Propagation delay not exceeding 1.7µs
Operating temperature range including -40°C to 85°C minimum

Mechanical Compatibility Requirements:

8-pin surface mount package (MSOP, SOIC, or uMAX/uSOP variants)
Pin-compatible footprint with 0.110" to 0.154" body width tolerance
Tape & Reel, Cut Tape, or Tube packaging formats acceptable for manufacturing

Compliance Requirements:

RoHS3 compliance mandatory
MSL 1 (Unlimited) moisture sensitivity level
REACH unaffected status

Substitute parts meeting all electrical parameters within specified tolerances, maintaining mechanical compatibility through standard 8-pin surface mount packages, and satisfying all compliance certifications are classified as direct equivalents.

Parameter Comparison

Parameter	BU7232SFVM-TR	AZV3002S-13	LMC6762BIM	MAX9022AUA+T	MAX9032ASA+T	MAX9032AUA+T	MAX989ESA+T	MAX989EUA+T	MAX991ESA+
Manufacturer	Rohm	Diodes Inc.	Texas Instruments	Analog Devices/Maxim	Analog Devices/Maxim	Analog Devices/Maxim	Analog Devices/Maxim	Analog Devices/Maxim	Analog Devices/Maxim
Number of Comparators	2	2	2	2	2	2	2	2	2
Output Type	Push-Pull	Push-Pull	Push-Pull, Rail-to-Rail	CMOS, Rail-to-Rail, TTL	Push-Pull, Rail-to-Rail	Push-Pull, Rail-to-Rail	CMOS, Push-Pull, Rail-to-Rail, TTL	CMOS, Push-Pull, Rail-to-Rail, TTL	CMOS, Push-Pull, Rail-to-Rail, TTL
Supply Voltage (Single)	1.8V ~ 5.5V	1.6V ~ 5.5V	2.7V ~ 15V	2.5V ~ 5.5V	2.5V ~ 5.5V	2.5V ~ 5.5V	2.5V ~ 5.5V	2.5V ~ 5.5V	2.5V ~ 5.5V
Input Offset Voltage (Max)	11mV @ 3V	30mV	15mV @ 5V	1mV @ 5V	1mV @ 5V	1mV @ 5V	5mV @ 5.5V	5mV @ 5.5V	5mV @ 5.5V
Input Bias Current (Max)	1pA @ 3V	1pA	0.04pA @ 5V	0.003µA @ 5V	0.008µA @ 5V	0.008µA @ 5V	1pA @ 5.5V	1pA @ 5.5V	1pA @ 5.5V
Output Current (Typ)	6mA @ 3V	68mA	30mA	—	—	—	—	—	—
Quiescent Current (Max)	25µA	9µA (Typ)	20µA	5µA	55µA	55µA	24µA	24µA	96µA
CMRR (Typ)	80dB	70dB	75dB	100dB	100dB	100dB	80dB	80dB	80dB
PSRR (Typ)	80dB	80dB	80dB	80dB	100dB	100dB	80dB	80dB	80dB
Propagation Delay (Max)	1.7µs	0.8µs	10µs	8µs	228ns	228ns	450ns	450ns	210ns
Operating Temperature	-40°C ~ 105°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	8-VSSOP, 8-MSOP (0.110", 2.80mm)	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)	8-TSSOP, 8-MSOP (0.118", 3.00mm)	8-SOIC (0.154", 3.90mm)	8-TSSOP, 8-MSOP (0.118", 3.00mm)	8-SOIC (0.154", 3.90mm)	8-TSSOP, 8-MSOP (0.118", 3.00mm)	8-SOIC (0.154", 3.90mm)
Product Status	Active	Active	Obsolete	Active	Active	Active	Active	Active	Active
RoHS Compliance	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3

Engineering Selection Recommendations

Primary Substitutes (Active Status, Full Compatibility):

MAX9032AUA+T and MAX9032ASA+T represent the highest compatibility tier. Both parts maintain active production status, exceed electrical specifications for input offset voltage (1mV vs. 11mV maximum), and provide superior CMRR/PSRR performance (100dB vs. 80dB). The MAX9032 series offers faster propagation delay (228ns vs. 1.7µs) and extended operating temperature range to 125°C. Package variants accommodate both 8-MSOP and 8-SOIC footprints. Inventory availability exceeds 5,400 units.

MAX989ESA+T and MAX989EUA+T maintain active status with input offset voltage of 5mV, meeting the 11mV specification. These parts provide push-pull, rail-to-rail, and TTL output compatibility with 80dB CMRR/PSRR matching the primary part. Propagation delay of 450ns remains within acceptable limits. Operating temperature range extends to 85°C. Inventory availability exceeds 12,900 units.

MAX9022AUA+T offers active status with superior input offset voltage (1mV) and extended temperature range to 125°C. CMRR/PSRR performance reaches 100dB. Propagation delay of 8µs exceeds the primary specification but remains acceptable for general-purpose applications. Inventory availability is 857 units.

Secondary Substitutes (Active Status, Parameter Deviations):

AZV3002S-13 from Diodes Incorporated maintains active status with 70dB CMRR (below 80dB specification) and 30mV input offset voltage (exceeding 11mV maximum). Propagation delay of 0.8µs is superior. This part is suitable only when CMRR/PSRR performance relaxation is acceptable. Inventory availability is 1,289 units.

Not Recommended:

LMC6762BIM carries obsolete product status and should not be selected for new designs despite meeting most electrical parameters. This part is retained in the comparison for reference only in legacy system maintenance scenarios.

MAX991ESA+ exhibits quiescent current of 96µA, exceeding the 25µA specification by 284%. While other parameters remain acceptable, elevated power consumption may impact battery-powered or thermally constrained applications.

Frequently Asked Questions (FAQ)

Q: Can MAX9032AUA+T directly replace BU7232SFVM-TR in existing designs?

A: MAX9032AUA+T is electrically compatible with superior performance specifications. The 8-MSOP package footprint is identical. Pin configuration matches the dual comparator topology. However, PCB layout verification is required to confirm trace routing compatibility, as the MAX9032 series may have different internal biasing characteristics affecting high-frequency performance.

Q: What is the primary difference between MAX9032ASA+T and MAX9032AUA+T?

A: Both parts are electrically identical. The difference is packaging format: MAX9032ASA+T uses 8-SOIC (0.154" width), while MAX9032AUA+T uses 8-MSOP/8-TSSOP (0.118" width). Select based on PCB footprint requirements. MAX9032AUA+T provides closer dimensional match to the original BU7232SFVM-TR 8-MSOP package.

Q: Why does AZV3002S-13 have lower CMRR than the primary part?

A: AZV3002S-13 achieves 70dB CMRR versus 80dB for BU7232SFVM-TR due to different internal circuit topology. This 10dB reduction represents approximately 3.16x higher common-mode signal coupling. Applications requiring high common-mode rejection (instrumentation, medical sensing) should avoid this substitute.

Q: Is LMC6762BIM suitable for new production?

A: No. LMC6762BIM carries obsolete product status and should not be selected for new designs. Existing inventory may be depleted without notice. Use only for legacy system repairs where original part specifications are mandatory and no active alternatives are acceptable.

Q: What is the temperature range limitation for most substitutes?

A: Most active substitutes (MAX989, AZV3002) operate to 85°C maximum, compared to BU7232SFVM-TR at 105°C. Applications requiring operation above 85°C must use MAX9032 series (125°C) or accept thermal derating. Verify application temperature profile before selection.

Q: Can I use MAX991ESA+ despite higher quiescent current?

A: MAX991ESA+ quiescent current of 96µA exceeds specification by 284%. In battery-powered applications, this increases power consumption by approximately 3.8x. For line-powered designs with adequate power budgeting, this part remains functional. Thermal analysis is required to confirm acceptable junction temperature rise.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification and REACH unaffected status, matching the primary part's environmental compliance profile.

Q: What packaging options are available for substitution?

A: Substitutes are available in three 8-pin surface mount formats: 8-MSOP (0.110"-0.118" width), 8-SOIC (0.154" width), and 8-TSSOP/8-uMAX (0.118" width). All are mechanically compatible with standard reflow soldering processes. Select based on PCB layout constraints and available footprint libraries.

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