MAX9077ESA+ Equivalent & Substitute Parts

Part Overview

The MAX9077ESA+ is a dual-channel general-purpose comparator manufactured by Analog Devices Inc./Maxim Integrated. This surface-mount 8-SOIC device features push-pull, rail-to-rail output architecture with a supply voltage range of 2.1V to 5.5V, making it suitable for low-power analog signal comparison applications. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Equivalent and substitute parts are identified based on matching electrical performance parameters, package compatibility, and functional equivalence within the general-purpose comparator category.

Key Parameters

Parameter	MAX9077ESA+
Manufacturer	Analog Devices Inc./Maxim Integrated
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Number of Elements	2
Output Type	Push-Pull, Rail-to-Rail
Voltage - Supply, Single/Dual (±)	2.1V ~ 5.5V
Voltage - Input Offset (Max)	1mV @ 5V
Current - Input Bias (Max)	0.005µA @ 5V
Current - Quiescent (Max)	6.6µA
CMRR, PSRR (Typ)	82dB CMRR, 77dB PSRR
Propagation Delay (Max)	580ns
Operating Temperature	-40°C ~ 85°C
Product Status	Active
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the MAX9077ESA+ are classified into two categories based on electrical and mechanical compatibility:

Category 1: Direct Electrical Equivalents (8-SOIC Surface Mount) Parts that maintain identical or superior electrical specifications within the same 8-SOIC package footprint. These parts share the same mounting type, pin count, and physical dimensions, allowing direct PCB substitution without layout modification.

Key substitution criteria for Category 1:

Package: 8-SOIC (0.154", 3.90mm Width)
Mounting Type: Surface Mount
Number of Elements: 2
Output Type: Push-Pull, Rail-to-Rail or compatible output architecture
Supply Voltage Range: Must encompass or overlap 2.1V ~ 5.5V
Input Offset Voltage: ≤ 1mV @ 5V
Quiescent Current: ≤ 6.6µA typical operation

Category 2: Functional Equivalents (Alternative Packages) Parts that provide equivalent electrical functionality but in different package formats (8-DIP, SOT-23-8, 8-VSSOP). These require PCB layout modification and are suitable for applications where package flexibility is available.

Key substitution criteria for Category 2:

Number of Elements: 2
Type: General Purpose Comparator
Output Type: Push-Pull, Rail-to-Rail or CMOS/TTL compatible
Supply Voltage Range: Overlapping with 2.1V ~ 5.5V
Input Offset Voltage: ≤ 2mV @ 5V
Mounting Type: Surface Mount or Through Hole

Parameter Comparison

Part Number	Manufacturer	Package	Supply Voltage	Input Offset (Max)	Input Bias (Max)	Quiescent Current (Max)	CMRR/PSRR (Typ)	Propagation Delay (Max)	Operating Temp	Mounting
MAX9077ESA+	Analog Devices/Maxim	8-SOIC	2.1V ~ 5.5V	1mV @ 5V	0.005µA @ 5V	6.6µA	82dB/77dB	580ns	-40°C ~ 85°C	Surface Mount
ALD2302ASAL	Advanced Linear Devices	8-SOIC	4V ~ 10V, ±2V ~ 5V	1mV @ 5V	0.001µA @ 5V	500µA	—	—	0°C ~ 70°C	Surface Mount
ALD2332BPAL	Advanced Linear Devices	8-DIP	4V ~ 10V, ±2V ~ 5V	1mV @ 5V	20pA @ 5V	500µA	80dB/75dB	—	0°C ~ 70°C	Through Hole
ALD2332BSAL	Advanced Linear Devices	8-SOIC	4V ~ 10V, ±2V ~ 5V	1mV @ 5V	20pA @ 5V	500µA	80dB/75dB	—	0°C ~ 70°C	Surface Mount
ALD2332SAL	Advanced Linear Devices	8-SOIC	4V ~ 10V, ±2V ~ 5V	2mV @ 5V	20pA @ 5V	500µA	80dB/75dB	—	0°C ~ 70°C	Surface Mount
TLV3492AID	Texas Instruments	8-SOIC	1.8V ~ 5.5V	15mV @ 5.5V	10pA @ 5.5V	1.2µA	74dB/69.12dB	14.6µs	-40°C ~ 125°C	Surface Mount
TLV3492AIDR	Texas Instruments	8-SOIC	1.8V ~ 5.5V	15mV @ 5.5V	10pA @ 5.5V	1.2µA	74dB/69.12dB	14.6µs	-40°C ~ 125°C	Surface Mount
TLV3492AMDREP	Texas Instruments	8-SOIC	1.8V ~ 5.5V	15mV @ 5.5V	10pA @ 5.5V	2.1µA	74dB/69.12dB	14.6µs	-55°C ~ 125°C	Surface Mount
TLV3502AIDCNR	Texas Instruments	SOT-23-8	2.7V ~ 5.5V, ±1.35V ~ 2.75V	6.5mV @ 5.5V	10pA @ 5.5V	5mA	70dB/100dB	10ns	-40°C ~ 125°C	Surface Mount
TLV3702IDGKR	Texas Instruments	8-VSSOP	2.7V ~ 16V, ±1.35V ~ 8V	5mV @ 15V	250pA @ 15V	1µA	88dB/105dB	—	-40°C ~ 125°C	Surface Mount

Engineering Selection Recommendations

For Direct PCB Substitution (8-SOIC Package):

TLV3492AMDREP (Texas Instruments) is the primary substitute for MAX9077ESA+ in applications requiring identical footprint compatibility. This part maintains 8-SOIC surface-mount packaging and offers extended operating temperature range (-55°C to 125°C) compared to the original part (-40°C to 85°C). Both parts are ROHS3 compliant and carry MSL 1 rating. The TLV3492AMDREP exhibits lower quiescent current (2.1µA vs. 6.6µA) and superior low-voltage operation (1.8V minimum vs. 2.1V), making it suitable for battery-powered applications. Input offset voltage is higher (15mV vs. 1mV), which may require circuit-level evaluation in precision applications.

TLV3492AID and TLV3492AIDR offer identical electrical specifications to TLV3492AMDREP with packaging variations (Tube and Cut Tape/Digi-Reel respectively). Selection between these variants depends on procurement and inventory management requirements.

ALD2332BSAL (Advanced Linear Devices) provides 8-SOIC surface-mount compatibility with EPAD® series designation. This part operates within 4V to 10V and ±2V to 5V supply ranges, requiring verification that application supply voltages fall within these bounds. Input offset voltage matches the original (1mV @ 5V), but quiescent current is significantly higher (500µA), making it unsuitable for low-power applications.

For Alternative Package Formats:

TLV3702IDGKR (Texas Instruments, 8-VSSOP) provides the highest performance metrics with 88dB CMRR and 105dB PSRR, suitable for applications requiring superior noise rejection. Extended supply voltage range (2.7V to 16V) accommodates diverse power supply architectures. This package requires PCB layout modification.

TLV3502AIDCNR (Texas Instruments, SOT-23-8) offers the smallest footprint with fastest propagation delay (10ns) and highest PSRR (100dB). Suitable for space-constrained applications with dual supply capability (±1.35V to 2.75V or 2.7V to 5.5V).

ALD2332BPAL (Advanced Linear Devices, 8-DIP) provides through-hole mounting for legacy or prototype applications where surface-mount assembly is not available.

Compliance and Certification:

All substitute parts listed maintain ROHS3 compliance and REACH unaffected status, matching the original part's regulatory standing. MSL ratings vary (1 or 2), with MSL 1 parts (MAX9077ESA+, TLV3492AMDREP, TLV3702IDGKR) offering unlimited shelf life under controlled storage conditions.

Frequently Asked Questions (FAQ)

Q: Can TLV3492AMDREP replace MAX9077ESA+ in existing PCB designs without modification?

A: Yes, TLV3492AMDREP maintains identical 8-SOIC footprint and pin configuration, enabling direct PCB substitution. However, circuit performance may differ due to higher input offset voltage (15mV vs. 1mV). Verify that your application tolerates this offset specification before implementation.

Q: What is the primary difference between ALD2302ASAL and ALD2332BSAL?

A: ALD2302ASAL operates within 4V to 10V and ±2V to 5V supply ranges with 0.001µA input bias current. ALD2332BSAL operates within the same supply range but specifies 20pA input bias current and includes EPAD® series designation. Both are 8-SOIC surface-mount packages. Selection depends on input bias current requirements for your application.

Q: Why does TLV3502AIDCNR have significantly higher quiescent current (5mA) compared to MAX9077ESA+ (6.6µA)?

A: TLV3502AIDCNR operates in SOT-23-8 package with different internal architecture optimized for faster propagation delay (10ns vs. 580ns) and higher output current capability. The higher quiescent current reflects this performance trade-off. This part is suitable for applications prioritizing speed over power consumption.

Q: Can I use ALD2332BPAL (8-DIP through-hole) as a substitute for MAX9077ESA+ (8-SOIC surface-mount)?

A: ALD2332BPAL provides functional equivalence but requires PCB layout redesign due to different package format and pin spacing. Use this substitute only when surface-mount assembly is unavailable or when prototype flexibility justifies layout modification.

Q: What supply voltage range must I verify before substituting with ALD series comparators?

A: ALD2302ASAL, ALD2332BSAL, and ALD2332SAL all operate within 4V to 10V and ±2V to 5V supply ranges. Verify that your application supply voltages fall within these bounds. MAX9077ESA+ operates at lower minimum voltage (2.1V), so substitution may not be feasible for applications requiring sub-4V single-supply operation.

Q: Which substitute part offers the best noise rejection performance?

A: TLV3702IDGKR provides the highest PSRR specification (105dB typical) and CMRR (88dB typical), making it optimal for applications requiring superior power supply noise rejection. This part operates across extended voltage range (2.7V to 16V) and requires 8-VSSOP package accommodation.

Q: Are all listed substitute parts ROHS3 compliant?

A: Yes, all substitute parts listed maintain ROHS3 compliance and REACH unaffected status, matching the original MAX9077ESA+ regulatory certification.

Q: What is the significance of MSL (Moisture Sensitivity Level) rating differences?

A: MAX9077ESA+, TLV3492AMDREP, and TLV3702IDGKR carry MSL 1 rating (unlimited shelf life under controlled storage). TLV3492AID, TLV3492AIDR, and TLV3502AIDCNR carry MSL 2 rating (1-year shelf life). MSL 1 parts are preferred for long-term inventory management and applications with extended procurement cycles.

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