LM2904ST Equivalent & Substitute Parts Reference

Part Overview

The LM2904ST from Rohm Semiconductor is a general-purpose dual operational amplifier in a compact 8-TSSOP package, suitable for industrial and automotive electronic design. The device operates over a wide supply range (3V to 32V), features a 0.3V/µs slew rate, and offers a gain bandwidth product of 700 kHz. Substitution of LM2904ST may be necessary due to inventory fluctuations, obsolescence in related part series, or specific sourcing requirements. Identifying form-fit-function equivalent and substitute models ensures continuity in manufacturing and design processes.

Key Parameters

Parameter	Value
Manufacturer	Rohm Semiconductor
Part Number	LM2904ST
Category	Linear, Amplifiers
Amplifier Type	General Purpose
Number of Circuits	2
Slew Rate	0.3V/µs
Gain Bandwidth Product	700 kHz
Current - Input Bias	20 nA
Voltage - Input Offset	1 mV
Current - Supply	600 µA
Current - Output / Channel	30 mA
Voltage - Supply Span (Min)	3 V
Voltage - Supply Span (Max)	32 V
Operating Temperature	-40°C ~ 125°C
Mounting Type	Surface Mount
Package / Case	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
RoHS Status	ROHS3 Compliant
MSL	1 (Unlimited)
REACH	Unaffected

Substitute Part Grouping Explanation

Substitute parts for the LM2904ST are selected based on strict compliance with key electrical, thermal, and mechanical parameters provided. For this category (Linear, Amplifiers), the critical specifications are amplifier type, number of circuits, slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, output current per channel, supply voltage range, operating temperature range, and package type. Only components matching all listed requirements are considered direct substitutes.

Parameter Comparison

Parameter	LM2904ST (Rohm)	ADA4062-2ARMZ (Analog Devices)	ADA4062-2ARMZ-R7 (Analog Devices)	LM258DGKR (TI)	LM258DMR2G (onsemi)	LM2904DGKR (Rohm)	LM2904YST (STMicroelectronics)
Amplifier Type	General Purpose	J-FET	J-FET	General Purpose	General Purpose	General Purpose	General Purpose
Number of Circuits	2	2	2	2	2	2	2
Slew Rate	0.3V/µs	3.3V/µs	3.3V/µs	0.3V/µs	-	0.3V/µs	0.6V/µs
Gain Bandwidth Product	700 kHz	1.4 MHz	1.4 MHz	700 kHz	1 MHz	700 kHz	700 kHz
Current - Input Bias	20 nA	2 pA	2 pA	20 nA	45 nA	20 nA	20 nA
Voltage - Input Offset	1 mV	750 µV	750 µV	3 mV	2 mV	3 mV	2 mV
Current - Supply	600 µA	165 µA (x2)	165 µA (x2)	500 µA (x2)	800 µA (x2)	1 mA	700 µA
Current - Output / Channel	30 mA	20 mA	20 mA	40 mA	40 mA	40 mA	30 mA
Voltage - Supply Span (Min)	3 V	8 V	8 V	3 V	3 V	3 V	3 V
Voltage - Supply Span (Max)	32 V	36 V	36 V	32 V	32 V	26 V	30 V
Operating Temperature	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-25°C ~ 85°C (TA)	-25°C ~ 85°C	-40°C ~ 125°C	-40°C ~ 125°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	8-TSSOP, 8-MSOP (0.118", 3.00mm)	8-TSSOP, 8-MSOP (0.118", 3.00mm)	8-TSSOP, 8-MSOP (0.118", 3.00mm)	8-TSSOP, 8-MSOP (0.118", 3.00mm)	8-TSSOP, 8-MSOP (0.118", 3.00mm)	8-TSSOP, 8-MSOP (0.118", 3.00mm)	8-TSSOP, 8-MSOP (0.118", 3.00mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	Unaffected	Unaffected	Unaffected	Unaffected	Unaffected	Unaffected	Unaffected

Engineering Selection Recommendations

All compared substitute parts are classified as RoHS3 compliant and REACH unaffected with Moisture Sensitivity Level 1 (Unlimited). Substitute models with "Active" status can be considered based solely on provided environmental compliance and product status. Substitutes with "Not For New Designs" status (e.g., LM2904DGKR) are suitable for maintenance or legacy projects as described. There are no restrictions based on packaging or mounting type for direct substitution from the given data.

Frequently Asked Questions (FAQ)

Q1: What parameters determine compatibility for the LM2904ST in replacement applications?
A1: Key parameters for compatibility include amplifier type, number of circuits, slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, output current per channel, supply voltage range, operating temperature, and package/case.

Q2: Can differences in amplifier type (General Purpose vs. J-FET) affect functionality?
A2: For direct substitutes, amplifier type must be considered among the allowed parameters for the application category. The supplied listing includes both General Purpose and J-FET type operational amplifiers as identified substitutes.

Q3: What package sizes are compatible with the LM2904ST substitute models?
A3: All substitute models conform to 8-TSSOP or 8-MSOP (0.118", 3.00mm width) package standards as listed.

Q4: How important is the supply voltage range when selecting a substitute?
A4: Substitute parts must have a supply voltage range that encompasses the operating range of the LM2904ST (3V to 32V), except where otherwise specified.

Q5: Are all substitutes RoHS and REACH compliant?
A5: All substituted parts indicated are ROHS3 compliant and REACH unaffected according to the provided data.

Q6: Does product status affect substitute selection?
A6: Only parts with "Active" status are accepted for new designs and production. "Not For New Designs" parts can be used for existing or legacy applications as stated in the comparison data.

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