LM2901AVQDRCM Equivalent & Substitute Parts

Part Overview

The LM2901AVQDRCM is a general-purpose comparator manufactured by Texas Instruments, featuring four independent differential comparators with open-collector outputs. This device operates across a wide supply voltage range (2V to 32V single supply, ±1V to ±16V dual supply) and is designed for precision voltage comparison applications in industrial and consumer electronics.

The LM2901AVQDRCM is classified as an active product with full production support. Substitute parts are identified when original stock is unavailable, when alternative packaging is required for manufacturing processes, or when design flexibility permits component interchange within specified electrical and mechanical parameters.

Substiute Parts

LM2901AVQDRCM

Texas InstrumentsIn Stock: 908LM2901AVQDRCM Datasheet

Current PartRFQ

LM2901AQS14-13

Diodes IncorporatedIn Stock: 20116LM2901AQS14-13 Datasheet

DirectRFQ

LM2901QT14-13

Diodes IncorporatedIn Stock: 7691LM2901QT14-13 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LM2901AVQDRCM are identified based on strict electrical and mechanical compatibility criteria. The following parameters determine substitution eligibility:

Critical Matching Parameters:

• Number of Elements: Must be 4 (quad configuration)
• Output Type: Must include Open-Collector capability
• Voltage - Supply Range: Must encompass or exceed 2V ~ 32V single supply and ±1V ~ 16V dual supply
• Voltage - Input Offset (Max): Must not exceed 2mV @ 5V
• Current - Input Bias (Max): Must not exceed 0.25µA @ 5V
• Current - Output (Typ): Must support minimum 16mA @ 5V
• Current - Quiescent (Max): Must not exceed 2.5mA
• Operating Temperature: Must cover -40°C ~ 125°C
• Package / Case: Surface mount 14-pin configuration (14-SOIC or 14-TSSOP acceptable)
• RoHS Status: Must maintain ROHS3 compliance
• MSL Rating: Must be 1 (Unlimited)

Identified Substitutes:

1. LM2901AQS14-13 (Diodes Incorporated) - Direct electrical equivalent with expanded supply voltage range (2V ~ 36V, ±1V ~ 18V). Packaged in 14-SOIC with Tape & Reel option. Automotive grade with AEC-Q100 qualification.

2. LM2901QT14-13 (Diodes Incorporated) - Similar electrical performance with alternative 14-TSSOP package. Automotive grade with AEC-Q100 qualification. Input offset specification differs (7mV @ 5V maximum).

Parameter Comparison

Engineering Selection Recommendations

LM2901AQS14-13 Selection Criteria:

The LM2901AQS14-13 is the direct electrical equivalent to the LM2901AVQDRCM. Both devices maintain identical input offset voltage specifications (2mV @ 5V), input bias current (0.25µA @ 5V), and output current capability (16mA @ 5V). The LM2901AQS14-13 provides expanded supply voltage range (2V ~ 36V single supply, ±1V ~ 18V dual supply), which encompasses the original specification. Both devices are packaged in 14-SOIC surface mount configuration with identical pin pitch (0.154", 3.90mm width). The LM2901AQS14-13 carries automotive-grade qualification (AEC-Q100) and maintains ROHS3 compliance with MSL 1 rating. This part is suitable for direct replacement in applications where the original part is unavailable.

LM2901QT14-13 Selection Criteria:

The LM2901QT14-13 is classified as a similar substitute due to package variation and input offset specification difference. This device uses a 14-TSSOP package (0.173", 4.40mm width) instead of 14-SOIC, requiring PCB layout modification. The input offset voltage specification is 7mV @ 5V maximum, which exceeds the original 2mV specification. All other electrical parameters (input bias current, output current, quiescent current, operating temperature range) remain identical. The LM2901QT14-13 is suitable for applications where package footprint change is acceptable and the higher input offset voltage does not compromise circuit performance. This part carries automotive-grade qualification (AEC-Q100) and maintains ROHS3 compliance.

Substitution Decision Logic:

• Use LM2901AQS14-13 for direct replacement without PCB modification
• Use LM2901QT14-13 only when 14-TSSOP package is required and input offset tolerance of 7mV is acceptable
• Verify supply voltage requirements do not exceed 36V single supply or ±18V dual supply for either substitute
• Confirm PCB layout compatibility with selected package before component procurement

Frequently Asked Questions (FAQ)

Q1: Can the LM2901AQS14-13 be used as a direct replacement for the LM2901AVQDRCM without circuit modification?

A: Yes. The LM2901AQS14-13 maintains identical electrical specifications for input offset voltage (2mV @ 5V), input bias current (0.25µA @ 5V), output current (16mA @ 5V), and quiescent current (2.5mA). Both devices are packaged in 14-SOIC surface mount configuration with identical pin pitch. No circuit modification is required. The expanded supply voltage range of the LM2901AQS14-13 (2V ~ 36V single supply) is backward compatible with the original specification (2V ~ 32V).

Q2: What is the primary difference between the LM2901AQS14-13 and LM2901QT14-13?

A: The primary difference is package configuration. The LM2901AQS14-13 uses 14-SOIC packaging (0.154" width), while the LM2901QT14-13 uses 14-TSSOP packaging (0.173" width). Additionally, the LM2901QT14-13 specifies a maximum input offset voltage of 7mV @ 5V, compared to 2mV @ 5V for both the original part and the LM2901AQS14-13. PCB layout modification is required when switching to the LM2901QT14-13.

Q3: Are the substitute parts automotive-qualified?

A: Yes. Both substitute parts (LM2901AQS14-13 and LM2901QT14-13) carry automotive-grade classification with AEC-Q100 qualification. The original LM2901AVQDRCM does not specify automotive qualification. Automotive-qualified parts meet additional reliability and testing requirements suitable for automotive and industrial applications.

Q4: Do the substitute parts maintain RoHS3 compliance?

A: Yes. Both LM2901AQS14-13 and LM2901QT14-13 are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the original part specifications.

Q5: Can the LM2901QT14-13 be used in applications requiring 2mV input offset voltage specification?

A: No. The LM2901QT14-13 specifies a maximum input offset voltage of 7mV @ 5V, which exceeds the 2mV requirement of the original LM2901AVQDRCM. Use the LM2901AQS14-13 for applications with strict input offset voltage tolerance requirements.

Q6: What supply voltage ranges are supported by each substitute part?

A: Both substitute parts support expanded supply voltage ranges compared to the original. LM2901AQS14-13 and LM2901QT14-13 both operate at 2V ~ 36V single supply and ±1V ~ 18V dual supply, exceeding the original specification of 2V ~ 32V single supply and ±1V ~ 16V dual supply.

Q7: Are there any thermal or operating temperature differences between the parts?

A: No. All three parts (LM2901AVQDRCM, LM2901AQS14-13, and LM2901QT14-13) operate across the identical temperature range of -40°C to 125°C.

Q8: What is the inventory status of substitute parts?

A: LM2901AQS14-13 has 20,100 pieces in stock. LM2901QT14-13 has 7,600 pieces in stock. Both are significantly higher than the original LM2901AVQDRCM inventory of 806 pieces.