LM2904QDRDL Equivalent & Substitute Parts

Part Overview

The LM2904QDRDL is a general-purpose operational amplifier featuring two independent circuits in a push-pull output configuration. Manufactured by Texas Instruments, this device is classified as a linear amplifier and is currently in active product status. The LM2904QDRDL is packaged in an 8-SOIC surface-mount package and is designed for applications requiring dual-channel amplification with moderate bandwidth and low input bias current characteristics.

Substitute parts are identified when equivalent electrical performance, mechanical compatibility, and functional specifications align with the original device. Alternative models may be required due to inventory availability, packaging format preferences, or specific qualification requirements such as automotive-grade certifications.

Substiute Parts

LM2904QDRDL

Texas InstrumentsIn Stock: 757LM2904QDRDL Datasheet

Current PartRFQ

LM2904QDRQ1

Texas InstrumentsIn Stock: 40355LM2904QDRQ1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LM2904QDRDL is determined by strict alignment of the following electrical and mechanical parameters:

Critical Substitution Parameters:

• Amplifier Type: General Purpose
• Number of Circuits: 2
• Slew Rate: 0.3 V/µs
• Gain Bandwidth Product: 700 kHz
• Current - Input Bias: 20 nA
• Voltage - Input Offset: 3 mV
• Current - Supply: 500 µA (x2 Channels)
• Current - Output / Channel: 30 mA
• Voltage - Supply Span: 3 V to 26 V
• Operating Temperature Range: -40°C to 125°C
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

The LM2904QDRQ1 qualifies as a direct substitute based on identical electrical specifications, matching package geometry, and equivalent environmental compliance ratings. The primary distinction is the packaging format (Cut Tape and Digi-Reel) and automotive-grade qualification (AEC-Q100).

Parameter Comparison

Engineering Selection Recommendations

Both the LM2904QDRDL and LM2904QDRQ1 are active products manufactured by Texas Instruments with identical electrical and mechanical specifications. Selection between these devices is based on application-specific requirements and supply chain considerations.

LM2904QDRDL is suitable for general industrial and commercial applications requiring standard operational amplifier performance in a surface-mount 8-SOIC package.

LM2904QDRQ1 is qualified to AEC-Q100 automotive standards and carries automotive-grade designation. This variant is appropriate for automotive applications, safety-critical systems, or environments requiring automotive-level component qualification. The LM2904QDRQ1 is available in Cut Tape and Digi-Reel packaging formats, offering flexibility in supply chain management and production workflows.

Both devices maintain ROHS3 compliance and unlimited moisture sensitivity rating, ensuring compatibility with modern manufacturing processes and environmental regulations.

Frequently Asked Questions (FAQ)

Q: Can the LM2904QDRQ1 be used as a direct replacement for the LM2904QDRDL?

A: Yes. The LM2904QDRQ1 is electrically and mechanically equivalent to the LM2904QDRDL. All critical parameters including slew rate, gain bandwidth product, input bias current, supply voltage range, and operating temperature are identical. Both devices use the same 8-SOIC package geometry and mounting type.

Q: What is the primary difference between these two part numbers?

A: The LM2904QDRQ1 carries AEC-Q100 automotive qualification and is designated as automotive-grade. The LM2904QDRDL does not carry this certification. Additionally, packaging format differs: the LM2904QDRQ1 is available in Cut Tape and Digi-Reel formats, while the LM2904QDRDL is specified as prototype packaging.

Q: Are there any compatibility concerns when substituting between these parts?

A: No compatibility concerns exist. Both devices are pin-compatible, functionally equivalent, and share identical electrical specifications. PCB layout, schematic design, and application circuitry require no modification when substituting between these parts.

Q: Which part should be selected for automotive applications?

A: The LM2904QDRQ1 is the appropriate selection for automotive applications due to its AEC-Q100 qualification. This certification ensures the device meets automotive industry reliability and quality standards.

Q: Are both parts RoHS compliant?

A: Yes. Both the LM2904QDRDL and LM2904QDRQ1 are ROHS3 compliant and carry unlimited moisture sensitivity rating (MSL 1), ensuring compatibility with lead-free soldering processes and modern manufacturing environments.

Q: What is the significance of the 8-SOIC package specification?

A: The 8-SOIC (Small Outline Integrated Circuit) package is a surface-mount package with 0.154 inches (3.90mm) width. This standardized package ensures mechanical compatibility between the LM2904QDRDL and LM2904QDRQ1 on PCBs designed for either device. No package-related modifications are required when substituting between these parts.