MAX4074BKESA Equivalent & Substitute Parts

Part Overview

The MAX4074BKESA is a general purpose operational amplifier manufactured by Analog Devices Inc./Maxim Integrated, housed in an 8-SOIC surface mount package. This device is classified as obsolete, which necessitates identification of active equivalent and substitute components for new designs and production continuity. The MAX4074BKESA operates as a single-circuit rail-to-rail amplifier suitable for general purpose applications requiring low-power operation across a 2.5V to 5.5V supply range.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	1	—
Output Type	Rail-to-Rail	—
Slew Rate	0.1	V/µs
-3dB Bandwidth	200	kHz
Current - Input Bias	0.8	pA
Voltage - Input Offset	200	µV
Current - Supply	37	µA
Current - Output / Channel	22	mA
Voltage - Supply Span (Min)	2.5	V
Voltage - Supply Span (Max)	5.5	V
Operating Temperature	-40 to 70	°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—

Substitute Part Grouping Explanation

Substitution of the MAX4074BKESA is determined by the following critical parameters:

Package Compatibility: All substitute parts must use the 8-SOIC (0.154", 3.90mm Width) surface mount package to ensure direct PCB compatibility without layout modifications.

Electrical Compatibility: Substitute parts must support the supply voltage range of 2.5V to 5.5V. The output type must be rail-to-rail to maintain signal swing characteristics. Single-circuit configuration is required.

Performance Envelope: While the MAX4074BKESA operates at 0.1V/µs slew rate and 200kHz bandwidth, substitute parts may exceed these specifications without causing functional incompatibility in general purpose applications. Input bias current, input offset voltage, supply current, and output current capacity are secondary selection criteria based on specific application requirements.

Product Status: Active substitute parts are preferred over obsolete components to ensure long-term availability and manufacturing continuity.

The substitute parts identified fall into two functional categories: general purpose amplifiers (MCP6271-E/SN, MCP6273-E/SN, MCP6281-E/SN, MCP6281T-E/SN, MCP6283T-E/SN, TLV4111IDR) and zero-drift amplifiers (LMP2021MA/NOPB, LMP2021MAX/NOPB). All maintain 8-SOIC packaging and rail-to-rail output configuration.

Parameter Comparison

Parameter	MAX4074BKESA	LMP2021MA/NOPB	LMP2021MAX/NOPB	MCP6271-E/SN	MCP6273-E/SN	MCP6281-E/SN	MCP6281T-E/SN	MCP6283T-E/SN	TLV4111IDR
Amplifier Type	General Purpose	Zero-Drift	Zero-Drift	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose
Number of Circuits	1	1	1	1	1	1	1	1	1
Output Type	Rail-to-Rail	—	—	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail
Slew Rate (V/µs)	0.1	2.6	2.6	0.9	0.9	2.5	2.5	2.5	1.57
Gain Bandwidth Product (MHz)	—	5	5	2	2	5	5	5	2.7
Current - Input Bias (pA)	0.8	25	25	1	1	1	1	1	0.3
Voltage - Input Offset (µV)	200	0.4	0.4	3000	3000	3000	3000	3000	175
Current - Supply (µA)	37	1100	1100	170	170	450	450	450	700
Current - Output / Channel (mA)	22	50	50	25	25	25	25	25	320
Voltage - Supply Span Min (V)	2.5	2.2	2.2	2	2	2.2	2.2	2.2	2.5
Voltage - Supply Span Max (V)	5.5	5.5	5.5	6	6	6	6	6	6
Operating Temperature (°C)	-40 to 70	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 125
Package / Case	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Primary Substitutes for General Purpose Applications:

The MCP6281-E/SN, MCP6281T-E/SN, and MCP6283T-E/SN from Microchip Technology are direct functional replacements for the MAX4074BKESA. These devices maintain identical 8-SOIC packaging, rail-to-rail output configuration, and single-circuit topology. All three are ROHS3 compliant and carry active product status, ensuring long-term availability. The MCP6281T-E/SN and MCP6283T-E/SN are supplied in Tape & Reel packaging, suitable for automated assembly processes.

Alternative General Purpose Substitutes:

The MCP6271-E/SN and MCP6273-E/SN provide lower supply current consumption (170µA versus 450µA for MCP6281 variants) while maintaining rail-to-rail output and 8-SOIC packaging. These are suitable for power-constrained applications. Both are ROHS3 compliant and active products.

The TLV4111IDR from Texas Instruments offers the highest output current capacity (320mA) among general purpose substitutes, making it suitable for applications requiring higher load drive capability. It maintains 8-SOIC packaging, rail-to-rail output, and ROHS3 compliance with active product status.

Zero-Drift Alternative:

The LMP2021MA/NOPB and LMP2021MAX/NOPB from Texas Instruments represent zero-drift amplifier technology. These devices provide superior input offset voltage (0.4µV versus 200µV) and higher slew rate (2.6V/µs versus 0.1V/µs). The LMP2021MAX/NOPB is supplied in Tape & Reel packaging. Both are ROHS3 compliant and active products. Zero-drift amplifiers are suitable for precision measurement and low-offset applications where the MAX4074BKESA's offset voltage is insufficient.

Compliance Consideration:

All substitute parts are ROHS3 compliant, whereas the MAX4074BKESA is RoHS non-compliant. This compliance improvement supports modern manufacturing and environmental standards.

Frequently Asked Questions (FAQ)

Q: Can the MCP6281-E/SN directly replace the MAX4074BKESA without PCB modifications?

A: Yes. Both devices use identical 8-SOIC (0.154", 3.90mm Width) surface mount packaging. Pin-to-pin compatibility is maintained for single-circuit rail-to-rail amplifier applications. No PCB layout changes are required.

Q: What is the difference between MCP6281-E/SN and MCP6281T-E/SN?

A: The MCP6281-E/SN is supplied in Tube packaging, while the MCP6281T-E/SN is supplied in Tape & Reel (TR) packaging. Both devices are electrically identical. Tape & Reel packaging is preferred for high-volume automated assembly processes.

Q: Why do some substitute parts have higher supply current than the MAX4074BKESA?

A: The MAX4074BKESA operates at 37µA supply current with limited performance specifications (0.1V/µs slew rate, 200kHz bandwidth). Substitute parts with higher supply current (such as MCP6281 at 450µA or TLV4111IDR at 700µA) provide enhanced performance characteristics including higher slew rate and bandwidth. Selection depends on application requirements.

Q: Is the LMP2021 series suitable as a direct replacement?

A: The LMP2021MA/NOPB and LMP2021MAX/NOPB are functionally compatible in 8-SOIC packaging and rail-to-rail output configuration. However, these are zero-drift amplifiers with different performance characteristics. They are suitable for applications requiring precision offset voltage performance. For general purpose applications matching the MAX4074BKESA specification, MCP6281 or MCP6273 variants are more appropriate.

Q: What is the operating temperature range difference?

A: The MAX4074BKESA operates from -40°C to 70°C. All substitute parts extend the upper temperature limit to 125°C, providing broader thermal operating range for industrial and automotive applications.

Q: Are all substitute parts RoHS compliant?

A: Yes. All identified substitute parts are ROHS3 compliant, whereas the MAX4074BKESA is RoHS non-compliant. This represents an improvement in environmental and regulatory compliance.

Q: Which substitute offers the highest output current capability?

A: The TLV4111IDR provides 320mA output current per channel, significantly higher than the MAX4074BKESA (22mA) and other general purpose substitutes (25-50mA). This makes it suitable for applications requiring higher load drive capability.

Q: Can I use MCP6271-E/SN in a power-sensitive application?

A: Yes. The MCP6271-E/SN operates at 170µA supply current, lower than the MAX4074BKESA (37µA) but significantly lower than MCP6281 variants (450µA). It is suitable for battery-powered or power-constrained applications where supply current is a critical parameter.

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