ALD2302PAL Equivalent & Substitute Parts

Part Overview

The ALD2302PAL is a general-purpose dual comparator IC manufactured by Advanced Linear Devices Inc., housed in an 8-PDIP through-hole package. This device features CMOS, NMOS, push-pull, and TTL output configurations with a supply voltage range of 4V to 10V (single) or ±2V to ±5V (dual). The part is currently in active production status with 651 units in stock.

Substitute parts are necessary when the original ALD2302PAL becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when enhanced electrical performance characteristics are needed for specific application requirements.

Substiute Parts

ALD2302PAL

Advanced Linear Devices Inc.In Stock: 700ALD2302PAL Datasheet

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LTC6702CDC#TRMPBF

Analog Devices Inc.In Stock: 1202LTC6702CDC#TRMPBF Datasheet

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MAX9077ESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 2160MAX9077ESA+ Datasheet

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MAX976ESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 3137MAX976ESA+ Datasheet

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MAX976ESA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 5342MAX976ESA+T Datasheet

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MAX976EUA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 5068MAX976EUA+T Datasheet

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TLV3502AIDR

Texas InstrumentsIn Stock: 35121TLV3502AIDR Datasheet

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TLV3702CD

Texas InstrumentsIn Stock: 1374TLV3702CD Datasheet

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TLV3702IP

Texas InstrumentsIn Stock: 1227TLV3702IP Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ALD2302PAL are qualified based on the following electrical and mechanical compatibility criteria:

Primary Substitution Criteria:

• Dual comparator configuration (2 elements)
• General-purpose comparator functionality
• Output type compatibility: CMOS, Push-Pull, or Rail-to-Rail configurations
• Supply voltage range overlap with 4V ~ 10V single supply or ±2V ~ ±5V dual supply
• Input offset voltage within acceptable range for precision applications
• Input bias current specifications suitable for high-impedance input circuits
• Operating temperature range encompassing 0°C ~ 70°C minimum
• ROHS3 compliance and MSL rating of 1 or 2

Package Considerations: Substitutes are available in multiple package formats: 8-DIP through-hole (direct replacement), 8-SOIC surface mount, 8-DFN surface mount, and 8-uMAX/uSOP surface mount. Each package format serves different manufacturing and assembly requirements.

Inventory Availability: Substitute parts are selected based on active production status and adequate stock levels to ensure supply chain continuity.

Parameter Comparison

Engineering Selection Recommendations

Direct Through-Hole Replacement: TLV3702IP is the only substitute available in 8-DIP through-hole packaging, matching the ALD2302PAL form factor. This part is designated as Last Time Buy, indicating limited future availability. It offers extended operating temperature range (-40°C to 125°C) and wider supply voltage compatibility (2.7V ~ 16V single, ±1.35V ~ 8V dual). Selection of this part is appropriate for legacy board designs requiring through-hole mounting.

Surface Mount Alternatives: For designs permitting surface mount technology, multiple options exist across different package formats:

• LTC6702CDC#TRMPBF (8-DFN): Offers the lowest quiescent current (32µA) and operates across the widest supply voltage range (1.7V ~ 5.5V). Suitable for low-power applications. Product status is active with unlimited MSL rating.

• MAX9077ESA+ (8-SOIC): Provides the lowest input offset voltage (1mV @ 5V) and extended operating temperature range (-40°C to 85°C). Appropriate for precision measurement applications. Active product status with 2,100 units in stock.

• MAX976ESA+ / MAX976ESA+T / MAX976EUA+T (8-SOIC / 8-uMAX): Deliver superior CMRR (95dB) and PSRR (100dB) performance with fast propagation delay (28ns). Extended operating temperature range (-40°C to 85°C). Available in multiple packaging and tape formats with high inventory levels (5,300+ units).

• TLV3502AIDR (8-SOIC): Offers the fastest propagation delay (10ns) and lowest input bias current (10pA @ 5.5V). Extended operating temperature range (-40°C to 125°C). Highest inventory availability (35,100 units). Active product status with MSL-2 rating.

Obsolete and End-of-Life Considerations: TLV3702CD is marked as obsolete and should not be selected for new designs. TLV3702IP is designated Last Time Buy and should be used only when through-hole packaging is mandatory and no alternative surface mount solution is feasible.

All substitute parts maintain ROHS3 compliance and are suitable for applications requiring environmental and regulatory adherence.

Frequently Asked Questions (FAQ)

Q: Can I use a surface mount substitute in place of the through-hole ALD2302PAL? A: Surface mount substitutes require different PCB layout and assembly processes. Direct board-level substitution is not possible without redesigning the PCB footprint and assembly procedure. TLV3702IP is the only through-hole alternative available.

Q: What is the difference between the MAX976 variants (MAX976ESA+, MAX976ESA+T, MAX976EUA+T)? A: These parts share identical electrical specifications but differ in packaging format and tape configuration. MAX976ESA+ is supplied in tube packaging. MAX976ESA+T uses cut tape and Digi-Reel format. MAX976EUA+T is supplied in tape and reel format with 8-uMAX/uSOP package. Selection depends on manufacturing assembly equipment and volume requirements.

Q: Is the LTC6702CDC#TRMPBF suitable for my 4V to 10V supply voltage application? A: No. The LTC6702CDC#TRMPBF operates across 1.7V to 5.5V supply range, which does not fully cover the 4V to 10V requirement of the ALD2302PAL. This part is suitable only for applications operating within the 4V to 5.5V overlap range.

Q: Which substitute offers the best low-power performance? A: The LTC6702CDC#TRMPBF provides the lowest quiescent current at 32µA maximum, making it the optimal choice for battery-powered or low-power applications. However, verify that the 1.7V to 5.5V supply voltage range meets your circuit requirements.

Q: Can I use TLV3702CD as a substitute? A: TLV3702CD is marked as obsolete and should not be used for new designs. Existing inventory may be available through secondary sources, but long-term supply cannot be guaranteed. Use active product alternatives instead.

Q: What is the significance of the MSL (Moisture Sensitivity Level) rating? A: MSL-1 (unlimited) parts have no moisture sensitivity restrictions and can be stored indefinitely without special handling. MSL-2 (1 year) parts like TLV3502AIDR require controlled storage conditions and must be used within one year of the manufacturing date. Verify your supply chain and storage capabilities before selecting MSL-2 components.

Q: Which substitute has the fastest response time? A: TLV3502AIDR offers the fastest propagation delay at 10ns maximum, followed by MAX976 variants at 28ns. For applications requiring high-speed signal detection or fast switching response, TLV3502AIDR is the optimal choice.

Q: Are all substitutes ROHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance, meeting environmental and regulatory requirements equivalent to the original ALD2302PAL.