MAX4323ESA Equivalent & Substitute Parts

Part Overview

The MAX4323ESA is a general-purpose operational amplifier manufactured by Analog Devices Inc./Maxim Integrated, housed in an 8-SOIC surface mount package. This device features rail-to-rail output capability and is designed for applications requiring single-channel amplification with low power consumption. The MAX4323ESA is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production support. Substitute parts must maintain compatibility across electrical performance parameters, mechanical packaging, and thermal operating ranges to ensure functional equivalence in circuit applications.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	1	—
Output Type	Rail-to-Rail	—
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
Slew Rate	2	V/µs
Gain Bandwidth Product	5	MHz
Current - Input Bias	50	nA
Voltage - Input Offset	700	µV
Current - Supply	725	µA
Current - Output / Channel	50	mA
Voltage - Supply Span (Min)	2.4	V
Voltage - Supply Span (Max)	6.5	V
Operating Temperature	-40 to 85	°C

Substitute Part Grouping Explanation

Substitution of the MAX4323ESA is determined by strict adherence to the following electrical and mechanical criteria:

Primary Compatibility Requirements:

Package type: 8-SOIC surface mount (0.154", 3.90mm Width)
Amplifier configuration: Single-channel general-purpose operational amplifier
Output architecture: Rail-to-rail output capability
Supply voltage range: Minimum 2.4 V to maximum 6.5 V overlap required
Operating temperature range: Minimum -40°C overlap required

Secondary Performance Parameters:

Slew rate: 2 V/µs (baseline specification)
Gain bandwidth product: 5 MHz (baseline specification)
Input bias current: 50 nA (baseline specification)
Input offset voltage: 700 µV (baseline specification)
Supply current: 725 µA (baseline specification)
Output current per channel: 50 mA (baseline specification)

Substitute parts are grouped based on whether they meet the primary compatibility requirements. Parts that exceed baseline performance parameters in secondary specifications remain functionally equivalent for circuit applications designed around the MAX4323ESA electrical envelope.

Parameter Comparison

Parameter	MAX4323ESA	MAX4323ESA+	MCP601T-E/SN	TLV2460AIDR	TLV2460CD	TLV2460CDR	TLV2460ID	TLV2460IDR	TLV2470AID	TLV2470CD	TLV2471CD
Manufacturer	Analog Devices	Analog Devices	Microchip	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments
Package / Case	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC
Slew Rate (V/µs)	2.0	2.0	2.3	1.6	1.6	1.6	1.6	1.6	1.5	1.5	1.5
Gain Bandwidth Product (MHz)	5	5	2.8	6.4	6.4	6.4	6.4	6.4	2.8	2.8	2.8
Current - Input Bias (nA)	50	50	0.001	1.3	1.3	1.3	1.3	1.3	0.0025	0.0025	0.0025
Voltage - Input Offset (µV)	700	700	700	500	500	500	500	500	250	250	250
Current - Supply (µA)	725	725	230	550	550	550	550	550	600	600	600
Current - Output / Channel (mA)	50	50	22	80	80	80	80	80	35	35	35
Voltage - Supply Span Min (V)	2.4	2.4	2.7	2.7	2.7	2.7	2.7	2.7	2.7	2.7	2.7
Voltage - Supply Span Max (V)	6.5	6.5	6	6	6	6	6	6	6	6	6
Operating Temperature (°C)	-40 to 85	-40 to 85	-40 to 125	-40 to 125	0 to 70	0 to 70	-40 to 125	-40 to 125	-40 to 125	0 to 70	0 to 70
Product Status	Obsolete	Active	Active	Last Time Buy	Active	Active	Last Time Buy	Last Time Buy	Active	Active	Active
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Direct Replacement (Highest Compatibility):

MAX4323ESA+ is the direct successor to MAX4323ESA, manufactured by Analog Devices Inc./Maxim Integrated. This part maintains identical electrical specifications and 8-SOIC packaging. The primary distinction is product status: MAX4323ESA+ is Active with ROHS3 compliance, whereas the original MAX4323ESA is Obsolete and RoHS non-compliant. For applications requiring continuity of supply and regulatory compliance, MAX4323ESA+ is the preferred direct replacement.

Cross-Manufacturer Substitutes (Functional Equivalence):

The following parts meet primary compatibility requirements and maintain functional equivalence within the electrical envelope of the MAX4323ESA:

MCP601T-E/SN (Microchip Technology): Active product status. Operates within the required supply voltage range (2.7 V to 6 V minimum overlap with MAX4323ESA 2.4 V to 6.5 V). Extended operating temperature range (-40°C to 125°C) exceeds the original specification. Slew rate of 2.3 V/µs and gain bandwidth product of 2.8 MHz remain within acceptable performance envelope. Input bias current of 1 pA represents significant improvement over the 50 nA baseline. ROHS3 compliant.

TLV2460 Series (Texas Instruments): Multiple packaging and temperature variants available. TLV2460AIDR and TLV2460IDR offer extended temperature range (-40°C to 125°C) with Last Time Buy status. TLV2460CD and TLV2460CDR are Active products with commercial temperature range (0°C to 70°C). All TLV2460 variants feature 6.4 MHz gain bandwidth product and 80 mA output current per channel, exceeding baseline specifications. Supply current of 550 µA is lower than the 725 µA baseline. ROHS3 compliant across all variants.

TLV2470 Series (Texas Instruments): TLV2470AID and TLV2470CD are Active products with 2.8 MHz gain bandwidth product matching MCP601T-E/SN. Input bias current of 2.5 pA and input offset voltage of 250 µV represent improvements over baseline. TLV2470AID supports extended temperature range (-40°C to 125°C); TLV2470CD is limited to commercial range (0°C to 70°C). ROHS3 compliant.

TLV2471CD (Texas Instruments): Active product with commercial temperature range (0°C to 70°C). Electrical specifications identical to TLV2470 series. ROHS3 compliant.

Temperature Range Considerations:

Applications requiring the full -40°C to 85°C operating range of the original MAX4323ESA should prioritize MAX4323ESA+, MCP601T-E/SN, TLV2460AIDR, TLV2460IDR, or TLV2470AID. Parts with commercial temperature range (0°C to 70°C) are suitable only for applications operating within this narrower envelope.

Regulatory Compliance:

All substitute parts listed are ROHS3 compliant. The original MAX4323ESA is RoHS non-compliant. For applications subject to RoHS regulations, any substitute part satisfies compliance requirements.

Frequently Asked Questions (FAQ)

Q: Can MAX4323ESA+ be used as a direct replacement for MAX4323ESA?

A: Yes. MAX4323ESA+ maintains identical electrical specifications, 8-SOIC packaging, and pinout. The primary differences are product status (Active vs. Obsolete) and RoHS compliance (ROHS3 vs. non-compliant). No circuit modifications are required.

Q: What are the key differences between MAX4323ESA and the Texas Instruments TLV2460 series?

A: Both maintain 8-SOIC packaging and rail-to-rail output. TLV2460 variants feature higher gain bandwidth product (6.4 MHz vs. 5 MHz), lower supply current (550 µA vs. 725 µA), and higher output current capability (80 mA vs. 50 mA). Supply voltage range differs: TLV2460 minimum is 2.7 V versus MAX4323ESA minimum of 2.4 V. Temperature range varies by TLV2460 variant.

Q: Which substitute part is best for low-power applications?

A: MCP601T-E/SN offers the lowest supply current at 230 µA, representing a 68% reduction compared to MAX4323ESA at 725 µA. TLV2460 series at 550 µA provides moderate power reduction. Selection depends on whether the 2.8 MHz gain bandwidth product of MCP601T-E/SN is sufficient for the application.

Q: Are all substitute parts available in the same packaging?

A: Yes. All listed substitute parts use 8-SOIC (0.154", 3.90mm Width) surface mount packaging, maintaining mechanical and thermal compatibility with MAX4323ESA PCB layouts.

Q: What is the difference between TLV2460CD and TLV2460CDR?

A: Both parts are identical electrically and mechanically. The primary difference is packaging format: TLV2460CD is supplied in Tube packaging, while TLV2460CDR is supplied in Tape & Reel (TR) format. Selection depends on assembly process requirements and volume.

Q: Can I use TLV2460CD in applications requiring -40°C to 85°C operation?

A: No. TLV2460CD is rated for 0°C to 70°C operation only. For the full -40°C to 85°C range, use TLV2460AIDR, TLV2460IDR, or MCP601T-E/SN.

Q: What is the significance of "Last Time Buy" status for TLV2460AIDR and TLV2460IDR?

A: Last Time Buy status indicates that Texas Instruments will discontinue these parts after a specified date. Existing inventory remains available, but long-term supply cannot be guaranteed. For new designs requiring extended product lifecycle, consider Active status alternatives such as TLV2460CD, TLV2460CDR, TLV2470AID, TLV2470CD, or TLV2471CD.

Q: How do input bias current specifications affect circuit design?

A: MAX4323ESA specifies 50 nA input bias current. Substitute parts range from 0.001 pA (MCP601T-E/SN) to 2.5 pA (TLV2470 series). Lower input bias current reduces errors in high-impedance circuits and transimpedance amplifier configurations. For applications sensitive to input bias current, MCP601T-E/SN or TLV2470 series provide superior performance.

Q: Is pinout compatibility guaranteed across all substitute parts?

A: Yes. All listed substitute parts use 8-SOIC packaging with identical pinout. Direct PCB substitution is possible without layout modifications.

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