LM2902QS14-13 Equivalent & Substitute Parts

Part Overview

The LM2902QS14-13 is a general-purpose operational amplifier manufactured by Diodes Incorporated, featuring four independent circuits in a 14-SOIC surface-mount package. This device is classified as Active product status and carries automotive-grade qualification (AEC-Q100) with operating temperature range of -40°C to 125°C. The LM2902QS14-13 is ROHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Substitute parts are necessary when the primary device becomes unavailable due to supply constraints, end-of-life status, or when design requirements permit operation within alternative electrical and mechanical specifications. Equivalent devices must maintain compatibility with the 14-SOIC package footprint and support the same circuit topology while meeting or exceeding the electrical performance parameters of the original design.

Key Parameters

Parameter	LM2902QS14-13	Unit
Manufacturer	Diodes Incorporated	—
Number of Circuits	4	—
Amplifier Type	General Purpose	—
Package / Case	14-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
Slew Rate	0.3	V/µs
Gain Bandwidth Product	700	kHz
Current - Input Bias	20	nA
Voltage - Input Offset	2	mV
Current - Supply	1	mA (x4 Channels)
Current - Output / Channel	40	mA
Voltage - Supply Span (Min)	2	V
Voltage - Supply Span (Max)	36	V
Operating Temperature	-40 to 125	°C
Grade	Automotive	—
Qualification	AEC-Q100	—
Product Status	Active	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the LM2902QS14-13 is determined by the following critical parameters:

Package Compatibility: All substitute parts must use the 14-SOIC (0.154", 3.90mm Width) surface-mount package to ensure PCB footprint compatibility.

Circuit Configuration: All substitute parts must contain four independent operational amplifier circuits to maintain functional equivalence.

Supply Voltage Range: Substitute parts must support the minimum supply voltage of 2V and maximum supply voltage of 36V specified for the LM2902QS14-13. Parts with narrower supply ranges may not be suitable for all applications.

Output Current: Substitute parts must deliver a minimum of 40 mA per channel to meet or exceed the output current capability of the original device.

Input Bias Current: Substitute parts with input bias current specifications must not exceed 90 nA to maintain acceptable input impedance characteristics.

Amplifier Type: General-purpose amplifiers are preferred for direct substitution. J-FET amplifiers (such as TL064 series) represent a different amplifier topology and are listed as alternatives only when general-purpose devices are unavailable.

Temperature Range: Automotive-grade devices with -40°C to 125°C operating range are preferred. Commercial-grade devices with narrower temperature ranges (0°C to 70°C or -25°C to 85°C) may be used only when application requirements permit.

Compliance Status: ROHS3 compliance and AEC-Q100 qualification are preferred to maintain consistency with the original device specifications.

Parameter Comparison

Parameter	LM2902QS14-13	LM224DRG3	LM248DR	LM2902D	LM2902DR2G	MC3403DT	TL064IDR	Unit
Manufacturer	Diodes Inc.	Texas Instruments	Texas Instruments	onsemi	onsemi	STMicroelectronics	Texas Instruments	—
Number of Circuits	4	4	4	4	4	4	4	—
Amplifier Type	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose	J-FET	—
Package / Case	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	—
Slew Rate	0.3	0.5	0.5	0.5	—	0.5	3.5	V/µs
Gain Bandwidth Product	700	1200	1000	1200	1000	1000	1000	kHz
Current - Input Bias	20	20	30	20	90	40	0.03	nA
Voltage - Input Offset	2	3	1	3	2	1	3	mV
Current - Supply	1	1.4	2.4	1.4	—	2.8	0.2	mA (x4)
Current - Output / Channel	40	30	25	30	40	30	20	mA
Voltage - Supply Span (Min)	2	3	8	3	3	3	10	V
Voltage - Supply Span (Max)	36	30	36	26	32	36	30	V
Operating Temperature	-40 to 125	-25 to 85	-25 to 85	-40 to 125	-40 to 105	0 to 70	-40 to 85	°C
Product Status	Active	Last Time Buy	Active	Obsolete	Active	Active	Active	—
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Non-Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	—

Engineering Selection Recommendations

Primary Substitute: LM2902DR2G (onsemi)

The LM2902DR2G is the most direct substitute for the LM2902QS14-13. Both devices share the same base product number (LM2902) and are manufactured to identical specifications. The LM2902DR2G maintains Active product status, ROHS3 compliance, and supports the full supply voltage range (3V to 32V). Output current capability matches the original at 40 mA per channel. Operating temperature range extends to -40°C to 105°C, covering the automotive temperature requirements. This device is available in high inventory (205,100 pcs) and is packaged in Cut Tape & Digi-Reel format.

Secondary Substitute: LM224DRG3 (Texas Instruments)

The LM224DRG3 provides general-purpose amplification with four circuits in 14-SOIC package. This device offers improved gain bandwidth product (1.2 MHz versus 700 kHz) and slew rate (0.5 V/µs versus 0.3 V/µs). However, the maximum supply voltage is limited to 30V, and operating temperature range is restricted to -25°C to 85°C, which does not meet automotive temperature specifications. Product status is Last Time Buy, indicating limited future availability. Use this substitute only when the narrower temperature and voltage ranges are acceptable for the application.

Tertiary Substitute: LM248DR (Texas Instruments)

The LM248DR is an Active product with four general-purpose circuits in 14-SOIC package. This device supports the full supply voltage range (8V to 36V) and maintains ROHS3 compliance. However, the minimum supply voltage requirement of 8V exceeds the 2V minimum of the original device, restricting use in low-voltage applications. Operating temperature range is -25°C to 85°C, which does not meet automotive specifications. Output current per channel is 25 mA, below the 40 mA requirement. Use this substitute only when minimum supply voltage of 8V is acceptable.

Alternative Substitute: MC3403DT (STMicroelectronics)

The MC3403DT is an Active product with four general-purpose circuits in 14-SOIC package. This device supports the full supply voltage range (3V to 36V) and maintains ROHS3 compliance. However, operating temperature range is limited to 0°C to 70°C, which does not meet automotive temperature specifications. Output current per channel is 30 mA, below the 40 mA requirement. Use this substitute only when commercial-grade temperature range is acceptable.

J-FET Alternative: TL064IDR (Texas Instruments)

The TL064IDR represents a different amplifier topology (J-FET) and is not a direct substitute for the general-purpose LM2902QS14-13. This device is suitable only when J-FET input characteristics are required for the application. The TL064IDR offers extremely low input bias current (30 pA) and high slew rate (3.5 V/µs), but requires minimum supply voltage of 10V and delivers only 20 mA output current per channel. Product status is Active with ROHS3 compliance.

Obsolete Device: LM2902D (onsemi)

The LM2902D is marked as Obsolete and carries RoHS non-compliance status. This device is not recommended for new designs or production use.

Frequently Asked Questions (FAQ)

Q: Can the LM2902DR2G directly replace the LM2902QS14-13 without circuit modifications?

A: Yes. The LM2902DR2G is manufactured to the same specifications as the LM2902QS14-13 and shares the identical base product number. Both devices use the 14-SOIC package, support four independent circuits, and operate across the same supply voltage range. No circuit modifications are required.

Q: What is the key difference between the LM224DRG3 and the LM2902QS14-13?

A: The LM224DRG3 offers higher gain bandwidth product (1.2 MHz versus 700 kHz) and faster slew rate (0.5 V/µs versus 0.3 V/µs). However, the maximum supply voltage is limited to 30V, and the operating temperature range is restricted to -25°C to 85°C, which does not meet automotive specifications. The LM224DRG3 is also marked as Last Time Buy, indicating limited future availability.

Q: Why is the TL064IDR listed as a substitute if it has different specifications?

A: The TL064IDR is listed as an alternative, not a direct substitute. It represents a different amplifier topology (J-FET) with different electrical characteristics. The TL064IDR is suitable only when J-FET input characteristics are specifically required for the application, such as when extremely low input bias current (30 pA) is necessary. For general-purpose applications, the general-purpose amplifiers (LM2902DR2G, LM224DRG3, LM248DR, MC3403DT) are preferred.

Q: Can I use the LM248DR in a circuit designed for 2V supply voltage?

A: No. The LM248DR requires a minimum supply voltage of 8V. The original LM2902QS14-13 supports operation at 2V minimum. If your circuit operates at 2V, the LM248DR is not suitable. Use the LM2902DR2G or LM224DRG3 instead, both of which support 3V minimum supply voltage.

Q: What is the significance of the "Last Time Buy" status for the LM224DRG3?

A: Last Time Buy status indicates that the manufacturer has announced the end of production for this device. Existing inventory will be sold until depletion, after which the part will no longer be available. For new designs or long-term production requirements, use Active status devices such as LM2902DR2G, LM248DR, MC3403DT, or TL064IDR.

Q: Are all substitute parts ROHS3 compliant?

A: No. The LM2902D is marked as RoHS non-compliant and is not recommended for use. All other listed substitutes (LM2902DR2G, LM224DRG3, LM248DR, MC3403DT, TL064IDR) are ROHS3 compliant.

Q: Which substitute provides the highest output current per channel?

A: The LM2902QS14-13 and LM2902DR2G both provide 40 mA output current per channel, which is the highest among all listed devices. The LM224DRG3 and MC3403DT provide 30 mA, the LM248DR provides 25 mA, and the TL064IDR provides 20 mA per channel.

Q: Can I use the MC3403DT in an automotive application requiring -40°C operation?

A: No. The MC3403DT operating temperature range is 0°C to 70°C, which does not extend to -40°C. For automotive applications requiring -40°C operation, use the LM2902QS14-13, LM2902DR2G, or LM2902D (if RoHS non-compliance is acceptable).

Q: What is the difference between Cut Tape and Tube packaging?

A: Cut Tape (CT) & Digi-Reel packaging is suitable for automated pick-and-place assembly equipment and is the standard for high-volume production. Tube packaging is used for manual assembly or lower-volume applications. Both packaging formats contain the same electronic component; the difference is in the physical delivery format.

Q: Is the LM2902D suitable for new production designs?

A: No. The LM2902D is marked as Obsolete and carries RoHS non-compliance status. For new designs, use Active status devices such as LM2902DR2G, LM224DRG3, LM248DR, MC3403DT, or TL064IDR.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message