MAX976EUA Equivalent & Substitute Parts

Part Overview

The MAX976EUA is a dual-channel general-purpose comparator manufactured by Analog Devices Inc./Maxim Integrated, featuring push-pull, rail-to-rail output architecture in an 8-uMAX/uSOP surface-mount package. The device is classified as obsolete, though inventory remains available. Substitute parts are necessary for new designs, long-term availability assurance, and applications requiring active product status or alternative packaging configurations.

Substiute Parts

MAX976EUA

Analog Devices Inc./Maxim IntegratedIn Stock: 3693MAX976EUA Datasheet

Current PartRFQ

MAX976EUA+

Analog Devices Inc./Maxim IntegratedIn Stock: 3159MAX976EUA+ Datasheet

DirectRFQ

ALD2302PAL

Advanced Linear Devices Inc.In Stock: 700ALD2302PAL Datasheet

MFR RecommendedRFQ

ALD2332APAL

Advanced Linear Devices Inc.In Stock: 927ALD2332APAL Datasheet

MFR RecommendedRFQ

TLV3502AIDCNR

Texas InstrumentsIn Stock: 17310TLV3502AIDCNR Datasheet

MFR RecommendedRFQ

TLV3502AIDR

Texas InstrumentsIn Stock: 35121TLV3502AIDR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX976EUA is determined by the following criteria:

Primary Compatibility Parameters:

• Dual-channel (2 elements) general-purpose comparator architecture
• Push-pull output capability with rail-to-rail swing
• Supply voltage range compatibility: 2.7V ~ 5.5V operation
• Input offset voltage ≤ 2mV @ 5V (preferred for precision applications)
• Input bias current ≤ 0.075µA @ 5.5V
• Quiescent current ≤ 650µA
• CMRR ≥ 95dB and PSRR ≥ 100dB
• Propagation delay ≤ 28ns
• Operating temperature range: -40°C ~ 85°C minimum
• ROHS3 compliance and MSL rating ≤ 1

Substitute Categories:

1. Direct Manufacturer Equivalent (MAX976EUA+): Identical electrical specifications with active product status and tube packaging. Recommended for direct replacement in new designs.

2. Texas Instruments TLV3502 Series (TLV3502AIDR, TLV3502AIDCNR): Functionally equivalent dual comparators with superior propagation delay (10ns vs. 28ns), extended temperature range (-40°C ~ 125°C), and active product status. Available in SOT-23-8 and 8-SOIC packages. Trade-off: higher quiescent current (5mA vs. 650µA) and slightly elevated input offset voltage (6.5mV vs. 2mV).

3. Advanced Linear Devices ALD Series (ALD2332APAL, ALD2302PAL): Dual comparators with through-hole 8-DIP packaging. ALD2332APAL offers superior input offset voltage (0.5mV) and lower input bias current (20pA). Both operate at 0°C ~ 70°C temperature range. Trade-off: higher supply voltage requirement (4V ~ 10V, ±2V ~ 5V) and through-hole mounting incompatible with surface-mount designs.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Surface-Mount, 8-uMAX/uSOP Package): MAX976EUA+ is the primary recommendation. It maintains identical electrical specifications and package footprint while offering active product status and assured long-term availability. Suitable for designs requiring no PCB layout modifications.

For New Designs with Extended Temperature Range: TLV3502AIDR or TLV3502AIDCNR are recommended when operating temperature extends to 125°C. Both devices provide faster propagation delay (10ns) and superior input bias current performance (10pA). The trade-off is increased quiescent current (5mA) and slightly higher input offset voltage (6.5mV). TLV3502AIDR uses 8-SOIC packaging; TLV3502AIDCNR uses SOT-23-8 packaging. Both are ROHS3 compliant with MSL-2 rating.

For Through-Hole PCB Designs: ALD2332APAL is recommended when through-hole mounting is required. It offers superior input offset voltage (0.5mV) and lower input bias current (20pA) compared to the MAX976EUA, with active product status. Operating temperature range is limited to 0°C ~ 70°C. Supply voltage requirement (4V ~ 10V, ±2V ~ 5V) must be verified for circuit compatibility.

For Low-Power Applications: ALD2332APAL and ALD2302PAL both feature lower quiescent current (500µA) compared to MAX976EUA (650µA), though through-hole packaging limits PCB density. Both maintain ROHS3 compliance and unlimited MSL rating.

Compliance Verification: All substitute parts maintain ROHS3 compliance and REACH unaffected status. MSL ratings vary: MAX976EUA and MAX976EUA+ are MSL-1 (unlimited); TLV3502 series are MSL-2 (1 year); ALD series are MSL-1 (unlimited). Storage and handling requirements must align with MSL classification for production environments.

Frequently Asked Questions (FAQ)

Q: Can MAX976EUA+ be used as a direct drop-in replacement for MAX976EUA? A: Yes. MAX976EUA+ is electrically and mechanically identical to MAX976EUA, with the same 8-uMAX/uSOP package footprint, supply voltage range (2.7V ~ 5.5V), and all key performance parameters. The primary difference is active product status, making it suitable for new designs and long-term production.

Q: What are the key differences between MAX976EUA and TLV3502AIDR? A: Both are dual-channel general-purpose comparators with push-pull, rail-to-rail outputs. TLV3502AIDR offers faster propagation delay (10ns vs. 28ns), extended operating temperature (-40°C ~ 125°C vs. -40°C ~ 85°C), and lower input bias current (10pA vs. 0.075µA). Trade-offs include higher quiescent current (5mA vs. 650µA), higher input offset voltage (6.5mV vs. 2mV), and different package (8-SOIC vs. 8-uMAX/uSOP). PCB layout redesign is required.

Q: Are ALD2332APAL and ALD2302PAL suitable replacements for surface-mount applications? A: No. Both ALD devices use through-hole 8-DIP packaging, incompatible with surface-mount PCB designs. They are suitable only for through-hole assembly. Additionally, their operating temperature range (0°C ~ 70°C) is narrower than MAX976EUA (-40°C ~ 85°C), and supply voltage requirements (4V ~ 10V, ±2V ~ 5V) differ from the original device.

Q: What is the impact of higher quiescent current in TLV3502 devices? A: TLV3502 series draws 5mA quiescent current compared to 650µA in MAX976EUA, representing approximately 7.7× higher static power consumption. This affects battery-powered and low-power applications. For power-sensitive designs, MAX976EUA+ or ALD series (500µA) are preferred.

Q: Can I use ALD2332APAL in a circuit designed for MAX976EUA? A: Substitution requires circuit verification. ALD2332APAL operates at 4V ~ 10V or ±2V ~ 5V supply voltage, compared to MAX976EUA's 2.7V ~ 5.5V single supply. If your circuit uses single-supply operation below 4V, ALD2332APAL is incompatible. Additionally, through-hole mounting requires PCB redesign, and the narrower operating temperature range (0°C ~ 70°C) must be verified against application requirements.

Q: What does MSL rating mean for component selection? A: MSL (Moisture Sensitivity Level) indicates how long a component can be stored in standard conditions before moisture absorption affects solderability. MSL-1 (unlimited storage) is preferred for inventory management. MAX976EUA and MAX976EUA+ are MSL-1; TLV3502 series are MSL-2 (1-year limit); ALD series are MSL-1. For long-term stock, MSL-1 devices reduce risk of moisture-related soldering defects.

Q: Which substitute offers the best input offset voltage performance? A: ALD2332APAL provides the lowest input offset voltage at 0.5mV @ 5V, compared to MAX976EUA's 2mV and TLV3502's 6.5mV. For precision threshold detection applications, ALD2332APAL is superior. However, through-hole packaging and narrower temperature range must be considered.

Q: Is TLV3502AIDCNR or TLV3502AIDR preferred for new designs? A: Both TLV3502 variants are electrically identical. TLV3502AIDR uses 8-SOIC packaging (0.154", 3.90mm width); TLV3502AIDCNR uses SOT-23-8 packaging. Selection depends on PCB space constraints and assembly equipment compatibility. SOT-23-8 offers smaller footprint; 8-SOIC provides wider pin spacing for manual rework if needed.