LM301ADR2 Equivalent & Substitute Parts

Part Overview

The LM301ADR2 is a general-purpose operational amplifier manufactured by onsemi, housed in an 8-SOIC surface-mount package. This device is classified as obsolete and operates across a supply voltage range of 10V to 36V with a slew rate of 0.5V/µs. The obsolete product status necessitates identification of equivalent and substitute components for ongoing design support and procurement continuity. Substitute parts are selected based on matching electrical characteristics, package compatibility, and functional equivalence within the general-purpose amplifier category.

Key Parameters

Parameter	LM301ADR2 Value
Amplifier Type	General Purpose
Number of Circuits	1
Slew Rate	0.5V/µs
Current - Input Bias	70 nA
Voltage - Input Offset	2 mV
Current - Supply	1.8mA
Voltage - Supply Span (Min)	10 V
Voltage - Supply Span (Max)	36 V
Operating Temperature	0°C ~ 70°C
Mounting Type	Surface Mount
Package / Case	8-SOIC (0.154", 3.90mm Width)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitute parts for the LM301ADR2 are categorized based on the following substitution criteria:

Direct Equivalent (Functional Replacement): Parts that maintain identical or near-identical electrical specifications across all critical parameters: slew rate, input bias current, input offset voltage, supply current, supply voltage range, operating temperature, and package configuration. These parts are pin-compatible and functionally interchangeable without circuit modification.

Similar Equivalent (Performance Variant): Parts that share the same package footprint and general-purpose amplifier classification but exhibit different electrical performance characteristics. These parts may have higher slew rates, different gain-bandwidth products, or modified input bias currents. Selection of similar equivalents requires verification that the application tolerates the performance differences.

Key Parameters for Substitution Assessment:

Package / Case: 8-SOIC (0.154", 3.90mm Width)
Amplifier Type: General Purpose
Number of Circuits: 1
Mounting Type: Surface Mount
Voltage - Supply Span compatibility
Operating Temperature range compatibility

Parameter Comparison

Part Number	Manufacturer	Slew Rate	Input Bias Current	Input Offset Voltage	Supply Current	Supply Voltage (Min-Max)	Operating Temperature	Package	Product Status
LM301ADR2	onsemi	0.5V/µs	70 nA	2 mV	1.8mA	10V - 36V	0°C ~ 70°C	8-SOIC	Obsolete
LM301ADR2G	onsemi	0.5V/µs	70 nA	2 mV	1.8mA	10V - 36V	0°C ~ 70°C	8-SOIC	Active
ICL7611DCBAZ	Renesas Electronics Corporation	1.6V/µs	1 pA	15 mV	1mA	2V - 16V	0°C ~ 70°C	8-SOIC	Active
NE5534AD	onsemi	13V/µs	500 nA	500 µV	4mA	6V - 40V	0°C ~ 70°C	8-SOIC	Obsolete
NE5534ADR	Texas Instruments	13V/µs	500 nA	500 µV	4mA	10V - 30V	0°C ~ 70°C	8-SOIC	Last Time Buy
NE5534D	onsemi	13V/µs	500 nA	500 µV	4mA	6V - 40V	0°C ~ 70°C	8-SOIC	Obsolete
SA5534AD	onsemi	13V/µs	500 nA	500 µV	4mA	6V - 40V	-40°C ~ 85°C	8-SOIC	Obsolete
SA5534ADR	Texas Instruments	13V/µs	500 nA	500 µV	4mA	10V - 30V	-40°C ~ 85°C	8-SOIC	Last Time Buy
SA5534D	Texas Instruments	13V/µs	500 nA	500 µV	4mA	10V - 30V	-40°C ~ 85°C	8-SOIC	Last Time Buy
SA5534PSR	Texas Instruments	13V/µs	500 nA	500 µV	4mA	10V - 30V	-40°C ~ 85°C	8-SOIC	Last Time Buy

Engineering Selection Recommendations

Primary Recommendation: LM301ADR2G

The LM301ADR2G is the direct equivalent replacement for the LM301ADR2. This part maintains identical electrical specifications across all parameters: 0.5V/µs slew rate, 70 nA input bias current, 2 mV input offset voltage, 1.8mA supply current, and 10V to 36V supply voltage range. The LM301ADR2G is manufactured by onsemi with Active product status and ROHS3 compliance, providing superior long-term availability and regulatory compliance compared to the obsolete LM301ADR2. The packaging is identical (8-SOIC, 0.154" width), and the operating temperature range matches (0°C to 70°C). This substitution requires no circuit modifications.

Secondary Recommendations: NE5534ADR and SA5534ADR

The NE5534ADR (Texas Instruments) and SA5534ADR (Texas Instruments) are similar equivalents with enhanced performance characteristics. Both parts feature significantly higher slew rates (13V/µs versus 0.5V/µs), improved input offset voltage (500 µV versus 2 mV), and higher gain-bandwidth products (10 MHz). These parts are housed in identical 8-SOIC packages and operate within overlapping supply voltage ranges (10V to 30V). Both parts carry Last Time Buy status with ROHS3 compliance. The SA5534ADR offers extended operating temperature range (-40°C to 85°C) compared to the LM301ADR2 (0°C to 70°C). Selection of these parts is appropriate for applications requiring higher slew rate performance and improved precision characteristics.

Alternative Consideration: ICL7611DCBAZ

The ICL7611DCBAZ (Renesas Electronics Corporation) is an active product with enhanced precision characteristics, including 1 pA input bias current and 1.6V/µs slew rate. However, this part operates within a reduced supply voltage range (2V to 16V), which may not accommodate the full 10V to 36V range of the original LM301ADR2. This part is suitable only for applications operating within the 2V to 16V supply window.

Compliance and Availability Considerations:

The LM301ADR2 is RoHS non-compliant and carries obsolete status. The LM301ADR2G provides direct functional replacement with ROHS3 compliance and active product status. For applications requiring extended temperature operation or higher performance, NE5534ADR and SA5534ADR provide ROHS3-compliant alternatives with Last Time Buy status, indicating limited future availability.

Frequently Asked Questions (FAQ)

Q: Can LM301ADR2G be used as a direct replacement for LM301ADR2?

A: Yes. The LM301ADR2G is a direct functional equivalent with identical electrical specifications, package configuration, and pin assignment. No circuit modifications are required. The primary difference is product status (Active versus Obsolete) and RoHS compliance (ROHS3 versus non-compliant).

Q: What are the key differences between LM301ADR2 and NE5534ADR?

A: The NE5534ADR exhibits significantly higher slew rate (13V/µs versus 0.5V/µs), higher input bias current (500 nA versus 70 nA), and higher supply current (4mA versus 1.8mA). The NE5534ADR also features a 10 MHz gain-bandwidth product, whereas the LM301ADR2 does not specify this parameter. Both parts share the same 8-SOIC package and 0°C to 70°C operating temperature range. The supply voltage range differs slightly (10V-30V for NE5534ADR versus 10V-36V for LM301ADR2).

Q: Is the SA5534PSR compatible with the LM301ADR2?

A: The SA5534PSR shares identical electrical specifications with the SA5534ADR and NE5534ADR. The primary difference is packaging: SA5534PSR is supplied in Tape & Reel (TR) format with 8-SO package (0.209", 5.30mm width) versus the 8-SOIC package (0.154", 3.90mm width) of the LM301ADR2. The wider package footprint may require PCB layout modifications. Electrical compatibility is confirmed.

Q: Why does ICL7611DCBAZ have a lower supply voltage maximum than LM301ADR2?

A: The ICL7611DCBAZ is designed for low-voltage applications with a maximum supply voltage of 16V, compared to the LM301ADR2 maximum of 36V. This part is suitable only for applications operating within the 2V to 16V supply window. Applications requiring the full 10V to 36V range must select alternative parts.

Q: What is the significance of "Last Time Buy" status for NE5534ADR and SA5534ADR?

A: Last Time Buy status indicates that the manufacturer has announced end-of-life for these parts. Existing inventory is available for purchase, but no new production is planned. These parts should be selected only when their enhanced performance characteristics justify the limited availability window. For long-term designs, LM301ADR2G (Active status) is the preferred choice.

Q: Are all substitute parts RoHS compliant?

A: No. The LM301ADR2, NE5534AD, NE5534D, SA5534AD, and SA5534PSR are RoHS non-compliant. The LM301ADR2G, ICL7611DCBAZ, NE5534ADR, SA5534ADR, and SA5534D are ROHS3 compliant. For applications requiring RoHS compliance, select from the compliant parts list.

Q: Can SA5534AD be used instead of LM301ADR2?

A: The SA5534AD is electrically similar but not a direct equivalent. It features higher slew rate (13V/µs), higher input bias current (500 nA), and higher supply current (4mA). The SA5534AD is obsolete and RoHS non-compliant. If substitution is necessary, SA5534ADR (Active equivalent with ROHS3 compliance) is the preferred alternative.

Q: What packaging options are available for substitute parts?

A: Most substitute parts are available in 8-SOIC package (0.154", 3.90mm width), matching the LM301ADR2 footprint. The SA5534PSR is available in 8-SO package (0.209", 5.30mm width), which has a wider footprint and may require PCB layout modifications. Packaging format options include Cut Tape (CT), Digi-Reel, Tube, and Tape & Reel (TR).

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