MAX4332ESA-T Equivalent & Substitute Parts

Part Overview

The MAX4332ESA-T is a general purpose operational amplifier manufactured by Analog Devices Inc./Maxim Integrated, configured as a dual-channel (2 circuit) rail-to-rail amplifier in an 8-SOIC surface mount package. This device is classified as obsolete, which necessitates identification of equivalent and substitute components for ongoing design support and procurement.

The MAX4332ESA-T operates across a supply voltage range of 2.3 V to 6.5 V with an operating temperature range of -40°C to 85°C. Its primary applications include general purpose signal conditioning, buffering, and amplification in low-power analog circuits. The obsolete status of this part requires engineers to evaluate active alternative components that maintain functional and electrical compatibility.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	2	—
Output Type	Rail-to-Rail	—
Slew Rate	1.5	V/µs
Gain Bandwidth Product	3	MHz
Current - Input Bias	25	nA
Voltage - Input Offset	250	µV
Current - Supply (x2 Channels)	275	µA
Current - Output / Channel	20	mA
Voltage - Supply Span (Min)	2.3	V
Voltage - Supply Span (Max)	6.5	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 MAX4332ESA-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)
Gain bandwidth product of 3 MHz or greater
Supply voltage range compatibility with 2.3 V minimum and 6.5 V maximum
Operating temperature range of -40°C to 85°C or broader
ROHS3 compliance and MSL 1 rating

Secondary Compatibility Parameters:

Slew rate (1.5 V/µs baseline)
Input bias current (25 nA baseline)
Input offset voltage (250 µV baseline)
Supply current per channel (275 µA baseline)
Output current per channel (20 mA baseline)

Substitute parts are grouped into two categories: direct manufacturer equivalents and functionally compatible alternatives from other manufacturers. Direct equivalents maintain identical electrical specifications and packaging. Functionally compatible alternatives meet all primary substitution criteria while allowing variation in secondary parameters within acceptable engineering tolerances.

Parameter Comparison

Parameter	MAX4332ESA-T	MAX4332ESA+T	LMV772MAX/NOPB	MCP602-E/SN	MCP602-I/SN	OP291GSZ	OP291GSZ-REEL	OP291GSZ-REEL7	OPA2345UA
Manufacturer	Analog Devices/Maxim	Analog Devices/Maxim	Texas Instruments	Microchip	Microchip	Analog Devices	Analog Devices	Analog Devices	Burr Brown
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active
Number of Circuits	2	2	2	2	2	2	2	2	2
Output Type	Rail-to-Rail	Rail-to-Rail	Differential, 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)	1.5	1.5	1.4	2.3	2.3	0.5	0.5	0.5	2.0
Gain Bandwidth Product (MHz)	3	3	3.5	2.8	2.8	3	3	3	3
Current - Input Bias (nA/pA)	25 nA	25 nA	0.23 pA	1 pA	1 pA	30 nA	30 nA	30 nA	0.2 pA
Voltage - Input Offset (µV)	250	250	250	700	700	80	80	80	200
Current - Supply (µA x2 Channels)	275	275	600	230	230	260	260	260	150
Current - Output / Channel (mA)	20	20	75	22	22	16	16	16	15
Voltage - Supply Span Min (V)	2.3	2.3	2.7	2.7	2.7	2.7	2.7	2.7	2.5
Voltage - Supply Span Max (V)	6.5	6.5	5.5	6	6	12	12	12	5.5
Operating Temperature (°C)	-40 to 85	-40 to 85	-40 to 125	-40 to 125	-40 to 85	-40 to 125	-40 to 125	-40 to 125	-40 to 85
Package / Case	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	Not specified

Engineering Selection Recommendations

Direct Manufacturer Equivalent (Recommended Primary Substitute):

MAX4332ESA+T is the direct equivalent to MAX4332ESA-T, manufactured by Analog Devices Inc./Maxim Integrated. This part maintains identical electrical specifications and packaging while offering active product status. The MAX4332ESA+T differs only in packaging format (Cut Tape & Digi-Reel® versus standard packaging) and is ROHS3 compliant with MSL 1 rating. This is the preferred substitute for direct replacement in existing designs.

Functionally Compatible Alternatives:

OP291GSZ, OP291GSZ-REEL, and OP291GSZ-REEL7 are general purpose dual-channel rail-to-rail amplifiers from Analog Devices Inc. These parts meet all primary substitution criteria and offer extended operating temperature range (-40°C to 125°C). The OP291 series provides superior input offset voltage (80 µV versus 250 µV) and extended supply voltage range (2.7 V to 12 V). Slew rate is reduced to 0.5 V/µs, which may impact applications requiring higher slew rate performance.

MCP602-E/SN and MCP602-I/SN are CMOS dual-channel rail-to-rail amplifiers from Microchip Technology. Both parts meet primary substitution criteria with enhanced slew rate (2.3 V/µs) and lower supply current (230 µA). The MCP602-E/SN supports extended temperature range (-40°C to 125°C), while MCP602-I/SN is rated to -40°C to 85°C. Input offset voltage is higher at 700 µV. Maximum supply voltage is 6 V, which is compatible with the MAX4332ESA-T maximum of 6.5 V.

LMV772MAX/NOPB is a differential rail-to-rail amplifier from Texas Instruments. This part meets primary substitution criteria with higher gain bandwidth product (3.5 MHz) and extended operating temperature (-40°C to 125°C). However, maximum supply voltage is limited to 5.5 V, which may restrict applications requiring the full 6.5 V range of the original part. Input bias current is significantly lower (0.23 pA).

OPA2345UA is a CMOS dual-channel rail-to-rail amplifier from Burr Brown. This part meets primary substitution criteria with the lowest supply current (150 µA) and excellent input bias current (0.2 pA). Operating temperature range is -40°C to 85°C. Maximum supply voltage is 5.5 V. This part is suitable for low-power applications where supply current minimization is critical.

Compliance and Certification:

All substitute parts listed are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings, ensuring compatibility with standard manufacturing and storage practices. All parts are classified under ECCN EAR99 and HTSUS 8542.33.0001.

Frequently Asked Questions (FAQ)

Q: Can MAX4332ESA+T be used as a direct replacement for MAX4332ESA-T?

A: Yes. MAX4332ESA+T is the direct manufacturer equivalent with identical electrical specifications, dual-channel configuration, rail-to-rail output, 8-SOIC packaging, and operating parameters. The only difference is packaging format (Cut Tape & Digi-Reel® versus standard). Both are ROHS3 compliant with MSL 1 rating.

Q: What is the primary reason to substitute the MAX4332ESA-T?

A: The MAX4332ESA-T is classified as obsolete. Substitution is necessary to ensure long-term design support, procurement availability, and manufacturing continuity. Active alternatives provide equivalent or enhanced performance with guaranteed supply chain availability.

Q: Are all substitute parts pin-compatible with the MAX4332ESA-T?

A: All substitute parts listed use the 8-SOIC (0.154", 3.90mm Width) package. Pin compatibility for dual-channel general purpose amplifiers in this package is standard across manufacturers. However, detailed pinout verification against specific application schematics is required before implementation.

Q: Which substitute offers the best performance improvement?

A: Performance improvement depends on application requirements. OP291GSZ series offers superior input offset voltage (80 µV) and extended supply range (12 V maximum). LMV772MAX/NOPB provides higher gain bandwidth product (3.5 MHz). OPA2345UA minimizes supply current (150 µA). MCP602 series offers highest slew rate (2.3 V/µs).

Q: Are there temperature range limitations with substitute parts?

A: MAX4332ESA-T operates -40°C to 85°C. OP291GSZ, LMV772MAX/NOPB, and MCP602-E/SN extend to -40°C to 125°C. MCP602-I/SN and OPA2345UA maintain -40°C to 85°C. Verify application temperature requirements before selection.

Q: What is the supply voltage compatibility range?

A: MAX4332ESA-T operates 2.3 V to 6.5 V. OP291GSZ series supports 2.7 V to 12 V (widest range). LMV772MAX/NOPB and OPA2345UA are limited to 5.5 V maximum. MCP602 series supports 2.7 V to 6 V. Verify circuit supply voltage against substitute maximum ratings.

Q: Do all substitutes maintain the same input bias current specification?

A: No. MAX4332ESA-T specifies 25 nA input bias current. OP291GSZ series specifies 30 nA. MCP602 and LMV772MAX/NOPB feature significantly lower input bias current (1 pA and 0.23 pA respectively). OPA2345UA specifies 0.2 pA. Applications sensitive to input bias current must verify substitute specifications.

Q: Which substitute is recommended for low-power applications?

A: OPA2345UA offers the lowest supply current at 150 µA (x2 channels), compared to 275 µA for MAX4332ESA-T. MCP602 series provides 230 µA. OP291GSZ series provides 260 µA. Selection depends on total system power budget and operating voltage requirements.

Q: Are all substitutes available in the same packaging options?

A: All substitutes are available in 8-SOIC surface mount package. Packaging formats vary: MAX4332ESA+T offers Cut Tape & Digi-Reel®; OP291GSZ variants offer Tube or Cut Tape & Digi-Reel®; MCP602 series available in Tube; LMV772MAX/NOPB available in Tape & Reel. Verify packaging availability with supplier for production requirements.

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