LM2904AQTH-13 Equivalent & Substitute Parts

Part Overview

The LM2904AQTH-13 is a general-purpose operational amplifier manufactured by Diodes Incorporated, configured as a dual-channel (2 circuit) device in an 8-TSSOP surface-mount package. This automotive-grade component operates across a wide supply voltage range of 2V to 36V and maintains performance across the extended temperature range of -40°C to 125°C. The device is AEC-Q100 qualified and RoHS3 compliant, making it suitable for automotive and industrial applications requiring reliable analog signal processing.

Substitute parts are necessary when the primary part becomes unavailable, when alternative packaging formats are required, or when design specifications allow for enhanced performance characteristics such as higher slew rate or gain-bandwidth product while maintaining functional compatibility.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	2	—
Package / Case	8-TSSOP (0.173", 4.40mm 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	700	µA (x2 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	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the LM2904AQTH-13 is determined by the following critical parameters:

Package Compatibility: All substitute parts must use the 8-TSSOP surface-mount package with 0.173" width and 4.40mm dimensions to ensure direct PCB footprint compatibility.

Functional Equivalence: Substitute parts must be dual-channel (2 circuit) general-purpose operational amplifiers capable of operating within overlapping supply voltage ranges and temperature specifications.

Electrical Performance: Substitute parts must maintain input bias current at 20 nA, support the required output current per channel, and operate within the specified temperature range. Enhanced performance characteristics such as higher slew rate or gain-bandwidth product are acceptable provided minimum specifications are met.

Compliance & Qualification: Automotive-grade parts with AEC-Q100 qualification are preferred for direct substitution in automotive applications. RoHS3 compliance and MSL Level 1 are standard across all listed substitutes.

Packaging Format: Substitute parts are available in Tape & Reel (TR) or Cut Tape (CT) & Digi-Reel® formats, which may differ from the original part's packaging but do not affect functional performance.

Parameter Comparison

Part Number	Manufacturer	Slew Rate (V/µs)	Gain Bandwidth Product (kHz)	Input Bias (nA)	Input Offset (mV)	Supply Current (µA)	Output Current/Ch (mA)	Supply Min (V)	Supply Max (V)	Temp Range (°C)	Product Status	AEC-Q100
LM2904AQTH-13	Diodes Incorporated	0.3	700	20	2	700	40	2	36	-40 to 125	Active	Yes
LM258PT	STMicroelectronics	0.6	1100	20	5	700	40	3	30	-40 to 105	Active	Yes
LM258WYPT	STMicroelectronics	0.6	1100	20	2	700	60	3	30	-40 to 105	Active	Yes
LM258YPT	STMicroelectronics	0.6	1100	20	5	700	40	3	30	-40 to 105	Active	Yes
LM2904PT	Rohm Semiconductor	0.3	800	20	1	600	30	3	32	-40 to 125	Active	No
LM2904VQPWR	Rohm Semiconductor	0.3	700	20	3	1000	40	3	26	-40 to 125	Obsolete	No
LM2904WYPT	STMicroelectronics	0.6	1100	20	2	700	40	3	30	-40 to 125	Active	Yes
LM2904YPT	STMicroelectronics	0.6	700	20	2	700	30	3	30	-40 to 125	Active	Yes
LM358PT	Rohm Semiconductor	0.3	800	20	1	600	30	3	32	-40 to 85	Obsolete	No
TL062IPWR	Texas Instruments	3.5	1000	0.03	3	200	20	10	30	-40 to 85	Active	No

Engineering Selection Recommendations

Primary Substitutes (Active Status, AEC-Q100 Qualified):

The LM2904WYPT (STMicroelectronics) and LM2904YPT (STMicroelectronics) are the preferred direct substitutes for the LM2904AQTH-13. Both parts maintain automotive-grade qualification, AEC-Q100 compliance, and extended temperature operation to 125°C. The LM2904WYPT offers enhanced slew rate (0.6V/µs vs. 0.3V/µs) and higher output current capability (60mA vs. 40mA per channel), while the LM2904YPT maintains identical slew rate characteristics to the original part. Both operate across the 3V to 30V supply range, which encompasses the critical operating window of the original 2V to 36V specification.

Secondary Substitutes (Active Status, Automotive Grade):

The LM258 series parts (LM258PT, LM258WYPT, LM258YPT) from STMicroelectronics provide functional equivalence with enhanced gain-bandwidth product (1.1MHz vs. 700kHz) and higher slew rate (0.6V/µs). These parts are AEC-Q100 qualified and suitable for automotive applications. The minimum supply voltage requirement increases to 3V, which may require circuit design verification in applications utilizing the 2V minimum specification of the original part.

Alternative Substitutes (Active Status, Non-Automotive):

The LM2904PT (Rohm Semiconductor) maintains the LM2904 base product number with comparable electrical characteristics and extended temperature range to 125°C. However, this part lacks AEC-Q100 qualification and automotive-grade designation, limiting its use to non-automotive applications.

Not Recommended:

The LM2904VQPWR (Rohm Semiconductor) and LM358PT (Rohm Semiconductor) carry obsolete product status and should not be selected for new designs. The TL062IPWR (Texas Instruments) is a J-FET amplifier with fundamentally different input characteristics (30pA vs. 20nA input bias) and higher minimum supply voltage requirement (10V), making it unsuitable as a direct substitute despite its superior slew rate performance.

Frequently Asked Questions (FAQ)

Q: Can the LM258 series parts directly replace the LM2904AQTH-13 in automotive applications?

A: The LM258PT, LM258WYPT, and LM258YPT are functionally compatible and AEC-Q100 qualified for automotive use. However, the minimum supply voltage increases from 2V to 3V. Verify that your circuit design does not require operation below 3V before substitution.

Q: What is the difference between LM2904WYPT and LM2904YPT?

A: Both parts are STMicroelectronics LM2904 variants with AEC-Q100 qualification and extended temperature range to 125°C. The LM2904WYPT provides higher output current per channel (60mA vs. 30mA) and enhanced slew rate (0.6V/µs vs. 0.6V/µs). Select LM2904WYPT for applications requiring higher output drive capability.

Q: Why is the TL062IPWR not recommended as a substitute?

A: The TL062IPWR is a J-FET amplifier with different input bias characteristics (30pA vs. 20nA), higher minimum supply voltage (10V vs. 2V), and lower maximum output current per channel (20mA vs. 40mA). These differences make it unsuitable for direct substitution despite superior slew rate performance.

Q: Are there packaging format differences between substitute parts?

A: Yes. The original LM2904AQTH-13 is supplied in Tape & Reel (TR) format. Substitute parts are available in both Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel® formats. Packaging format does not affect electrical performance or PCB compatibility, only supply and handling procedures.

Q: Can I use LM2904PT from Rohm Semiconductor as a substitute?

A: The LM2904PT is functionally compatible and maintains the LM2904 base product number with comparable electrical characteristics. However, it lacks AEC-Q100 qualification and automotive-grade designation. Use this part only in non-automotive applications where automotive qualification is not required.

Q: What is the significance of the 2V minimum supply voltage in the original part?

A: The LM2904AQTH-13 operates at supply voltages as low as 2V, enabling use in battery-powered and low-voltage applications. Most substitute parts require a minimum of 3V. If your application operates below 3V, the LM2904WYPT or LM2904YPT are the only suitable substitutes that maintain the 2V minimum specification through the LM2904 base product line.

Q: Should I select a substitute with higher slew rate than the original part?

A: Higher slew rate (0.6V/µs vs. 0.3V/µs) improves transient response and is generally beneficial for signal fidelity. The LM258 series and LM2904WYPT offer this enhancement. Verify that your circuit design does not depend on the original slew rate specification before selecting a higher-performance substitute.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts carry RoHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating, matching the environmental and regulatory status of the original LM2904AQTH-13.

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