MAX4242ESA-T Equivalent & Substitute Parts

Part Overview

The MAX4242ESA-T is a general-purpose operational amplifier manufactured by Analog Devices Inc./Maxim Integrated, configured as a dual-channel (2 circuit) rail-to-rail output device in an 8-SOIC surface mount package. This part is classified as obsolete, necessitating identification of active equivalent and substitute components for new designs and production continuity. The MAX4242ESA-T operates across a supply voltage range of 1.8 V to 5.5 V with an operating temperature range of -40°C to 85°C, making it suitable for low-power, general-purpose amplification applications.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	2	—
Output Type	Rail-to-Rail	—
Slew Rate	0.04	V/µs
Gain Bandwidth Product	90	kHz
Current - Input Bias	2	nA
Voltage - Input Offset	200	µV
Current - Supply (per Channel)	14	µA
Current - Output / Channel	2.5	mA
Voltage - Supply Span (Min)	1.8	V
Voltage - Supply Span (Max)	5.5	V
Operating Temperature	-40 to 85	°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the MAX4242ESA-T is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Dual-channel (2 circuit) configuration
Rail-to-rail output capability
8-SOIC surface mount package (0.154", 3.90mm Width)
Supply voltage range compatibility: minimum 1.8 V, maximum 5.5 V or higher
Operating temperature range: -40°C to 85°C or extended range

Secondary Compatibility Parameters:

Slew rate: 0.04 V/µs or greater
Gain bandwidth product: 90 kHz or greater
Input bias current: 2 nA or lower
Input offset voltage: 200 µV or lower
Output current per channel: 2.5 mA or greater
Supply current per channel: 14 µA or lower

Substitute parts are grouped into two categories based on amplifier type: general-purpose amplifiers (ISL28230 series, MCP6002, MCP6142) and zero-drift amplifiers (ISL28233 series). All substitute parts maintain the 8-SOIC package form factor and surface mount technology. Compliance with RoHS3 and REACH requirements is maintained across all listed substitutes.

Parameter Comparison

Part Number	Manufacturer	Product Status	Amplifier Type	Slew Rate (V/µs)	GBW (kHz)	Input Bias (pA/nA)	Input Offset (µV/mV)	Supply Current (µA/nA)	Output Current (mA)	Temp Range (°C)	Package
MAX4242ESA-T	Analog Devices	Obsolete	General Purpose	0.04	90	2 nA	200 µV	14 µA	2.5	-40 to 85	8-SOIC
MAX4242ESA+T	Analog Devices	Active	General Purpose	0.04	90	2 nA	200 µV	14 µA	2.5	-40 to 85	8-SOIC
ISL28230CBZ	Renesas	Active	General Purpose	0.2	400	250 pA	5 µV	20 µA	15	0 to 70	8-SOIC
ISL28230CBZ-T7	Renesas	Active	General Purpose	0.2	400	250 pA	5 µV	20 µA	15	0 to 70	8-SOIC
ISL28230CBZ-T7A	Renesas	Obsolete	General Purpose	0.2	400	250 pA	5 µV	20 µA	15	0 to 70	8-SOIC
ISL28233FBZ	Renesas	Active	Zero-Drift	0.2	400	180 pA	2 µV	18 µA	19	-40 to 125	8-SOIC
ISL28233FBZ-T7	Renesas	Active	Zero-Drift	0.2	400	180 pA	2 µV	18 µA	19	-40 to 125	8-SOIC
ISL28233FBZ-T7A	Renesas	Active	Zero-Drift	0.2	400	180 pA	2 µV	18 µA	19	-40 to 125	8-SOIC
MCP6002-I/SN	Microchip	Active	General Purpose	0.6	1000	1 pA	4.5 mV	100 µA	23	-40 to 85	8-SOIC
MCP6142-E/SN	Microchip	Active	General Purpose	0.024	100	1 pA	3 mV	600 nA	20	-40 to 125	8-SOIC
MCP6142-I/SN	Microchip	Active	General Purpose	0.024	100	1 pA	3 mV	600 nA	20	-40 to 85	8-SOIC

Engineering Selection Recommendations

Direct Equivalent (Active Status):

The MAX4242ESA+T is the direct active equivalent of the MAX4242ESA-T. Both parts share identical electrical specifications, package configuration, and compliance certifications (ROHS3, REACH Unaffected). The MAX4242ESA+T differs only in product status (Active vs. Obsolete) and represents the primary replacement for discontinued MAX4242ESA-T inventory.

General-Purpose Amplifier Substitutes (Active Status):

The ISL28230CBZ and ISL28230CBZ-T7 (Renesas Electronics) are active general-purpose amplifiers that exceed the electrical performance of the MAX4242ESA-T across all key parameters: higher slew rate (0.2 V/µs vs. 0.04 V/µs), greater gain bandwidth product (400 kHz vs. 90 kHz), lower input bias current (250 pA vs. 2 nA), and superior input offset voltage (5 µV vs. 200 µV). Both maintain the 8-SOIC package and supply voltage compatibility (1.8 V to 5.5 V). Operating temperature range is restricted to 0°C to 70°C. These parts are suitable for applications requiring improved precision and bandwidth.

The MCP6002-I/SN (Microchip Technology) offers significantly enhanced performance with 1 MHz gain bandwidth product and 0.6 V/µs slew rate, though with higher supply current (100 µA vs. 14 µA). Operating temperature range matches the original part (-40°C to 85°C). This substitute is appropriate for higher-speed applications where increased power consumption is acceptable.

The MCP6142-E/SN and MCP6142-I/SN (Microchip Technology) provide ultra-low supply current (600 nA vs. 14 µA), making them suitable for battery-powered and energy-constrained applications. The MCP6142-E/SN extends operating temperature to -40°C to 125°C. Slew rate is lower (0.024 V/µs), limiting use to low-frequency applications.

Zero-Drift Amplifier Substitutes (Active Status):

The ISL28233FBZ, ISL28233FBZ-T7, and ISL28233FBZ-T7A (Renesas Electronics) are active zero-drift amplifiers offering superior input offset voltage (2 µV vs. 200 µV) and extended operating temperature range (-40°C to 125°C). These parts provide enhanced precision for instrumentation and measurement applications. All three variants maintain 8-SOIC packaging and supply voltage compatibility. Differences exist in packaging format (Tube vs. Tape & Reel) and moisture sensitivity level (MSL 1 vs. MSL 2).

Compliance and Certification:

All listed substitute parts maintain ROHS3 compliance and REACH Unaffected status, ensuring regulatory compatibility with the original MAX4242ESA-T. Moisture sensitivity levels range from MSL 1 (Unlimited) to MSL 2 (1 Year), with implications for storage and handling procedures.

Frequently Asked Questions (FAQ)

Q: Can the MAX4242ESA+T be used as a direct replacement for MAX4242ESA-T?

A: Yes. The MAX4242ESA+T is electrically and mechanically identical to the MAX4242ESA-T. The only difference is product status: MAX4242ESA+T is active while MAX4242ESA-T is obsolete. Both share identical specifications for slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, output current, operating temperature range, and 8-SOIC package configuration.

Q: What are the key differences between general-purpose and zero-drift amplifier substitutes?

A: General-purpose amplifiers (ISL28230 series, MCP6002, MCP6142) are optimized for standard applications with acceptable input offset voltage (5 µV to 4.5 mV). Zero-drift amplifiers (ISL28233 series) employ auto-zeroing techniques to achieve extremely low input offset voltage (2 µV), making them suitable for precision measurement and instrumentation applications where offset drift over temperature is critical.

Q: Are all substitute parts available in the same 8-SOIC package?

A: Yes. All listed substitute parts are packaged in 8-SOIC (0.154", 3.90mm Width) surface mount configuration, ensuring mechanical compatibility with existing PCB layouts designed for the MAX4242ESA-T.

Q: What is the impact of operating temperature range differences on substitution?

A: The MAX4242ESA-T operates from -40°C to 85°C. Substitute parts offer three temperature range options: (1) identical range (-40°C to 85°C): MCP6002-I/SN, MCP6142-I/SN; (2) restricted range (0°C to 70°C): ISL28230CBZ, ISL28230CBZ-T7; (3) extended range (-40°C to 125°C): ISL28233FBZ series, MCP6142-E/SN. Selection depends on application temperature requirements.

Q: How do supply current differences affect circuit design?

A: The MAX4242ESA-T draws 14 µA per channel. Substitutes range from 600 nA (MCP6142 series) to 100 µA (MCP6002-I/SN). Lower supply current reduces power consumption and heat generation, beneficial for battery-powered applications. Higher supply current may require larger power supply capacity but often correlates with improved performance metrics such as slew rate and gain bandwidth product.

Q: What is the significance of moisture sensitivity level (MSL) ratings?

A: MSL 1 (Unlimited) indicates no moisture sensitivity; parts can be stored indefinitely without desiccant protection. MSL 2 (1 Year) requires desiccant storage and limits shelf life to one year after packaging. ISL28230CBZ-T7, ISL28230CBZ-T7A, and ISL28233FBZ-T7 carry MSL 2 ratings, necessitating controlled storage conditions. ISL28233FBZ-T7A is Active with MSL 2, while ISL28233FBZ and ISL28233FBZ-T7 are Active with MSL 1.

Q: Which substitute offers the best performance improvement over the MAX4242ESA-T?

A: The MCP6002-I/SN provides the largest performance increase with 1 MHz gain bandwidth product (vs. 90 kHz), 0.6 V/µs slew rate (vs. 0.04 V/µs), and 23 mA output current (vs. 2.5 mA). However, this comes at the cost of 100 µA supply current (vs. 14 µA). For precision applications, ISL28233FBZ-T7A offers superior input offset voltage (2 µV vs. 200 µV) and extended temperature range (-40°C to 125°C).

Q: Are there any obsolete substitutes listed?

A: Yes. ISL28230CBZ-T7A and MAX4242ESA-T are both classified as obsolete. While ISL28230CBZ-T7A remains available in inventory (1,059 pcs), it should not be selected for new designs. Active alternatives include ISL28230CBZ, ISL28230CBZ-T7, and ISL28233FBZ series from Renesas, or MCP6002 and MCP6142 series from Microchip.

Q: What packaging format options are available for substitute parts?

A: Substitute parts are supplied in three packaging formats: (1) Tube: ISL28230CBZ, ISL28233FBZ, MCP6002-I/SN, MCP6142-E/SN, MCP6142-I/SN; (2) Cut Tape (CT) & Digi-Reel®: ISL28230CBZ-T7, ISL28230CBZ-T7A, ISL28233FBZ-T7, ISL28233FBZ-T7A; (3) Tape & Reel (TR): ISL28233FBZ-T7, ISL28233FBZ-T7A. Selection depends on production volume and assembly equipment compatibility.

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