MAX4337EUA-T Equivalent & Substitute Parts

Part Overview

The MAX4337EUA-T is a general purpose operational amplifier manufactured by Analog Devices Inc./Maxim Integrated, featuring dual circuits in a rail-to-rail configuration. This device is classified as obsolete, which necessitates identification of active equivalent and substitute components for new designs and production continuity. The MAX4337EUA-T operates across a 2.7V to 5.5V supply range with a 1.8V/µs slew rate and 5MHz gain bandwidth product, making it suitable for low-power analog signal conditioning applications.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	2	—
Output Type	Rail-to-Rail	—
Slew Rate	1.8	V/µs
Gain Bandwidth Product	5	MHz
Current - Input Bias	100	nA
Voltage - Input Offset	600	µV
Current - Supply (x2 Channels)	1.3	mA
Current - Output / Channel	110	mA
Voltage - Supply Span (Min)	2.7	V
Voltage - Supply Span (Max)	5.5	V
Operating Temperature	-40 to 85	°C
Package / Case	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the MAX4337EUA-T is determined by the following critical parameters: dual-circuit configuration, rail-to-rail output capability, surface mount packaging in 8-pin TSSOP or MSOP form factor, supply voltage range compatibility (minimum 2.7V), and operating temperature range. The substitute parts are grouped into two categories based on amplifier topology and performance characteristics:

Category 1: General Purpose Amplifiers (Bipolar/JFET Input) These devices maintain the general purpose amplifier classification with comparable slew rates and gain bandwidth products. Substitutes include LMV822AIST, LMV822IST, NCS20032DMR2G, NCV20032DMR2G, TLV2462AQPWRG4Q1, and TLV2462AQPWRQ1. These parts support the 2.7V minimum supply requirement and provide rail-to-rail output in compatible packaging.

Category 2: CMOS Amplifiers (Ultra-Low Input Bias Current) These devices feature CMOS input stages with significantly lower input bias currents (0.1pA to 2pA) and reduced supply current. Substitutes include LPV542DGKR, LPV542DGKT, TLV2772AQPWRG4Q1, and TLV2772QPWRG4Q1. These parts operate at lower supply voltages (1.6V minimum) and extended temperature ranges.

Key Substitution Criteria:

Dual-circuit configuration (2 amplifiers per package)
Rail-to-rail output capability
8-pin surface mount package (TSSOP or MSOP)
Supply voltage range overlap with MAX4337EUA-T (2.7V to 5.5V)
Operating temperature range: minimum -40°C

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Slew Rate (V/µs)	GBW (MHz)	Input Bias (nA/pA)	Input Offset (µV/mV)	Supply Current (µA/mA)	Output Current (mA)	Supply Min (V)	Supply Max (V)	Temp Range (°C)	Package	Status
MAX4337EUA-T	Analog Devices	General Purpose	1.8	5	100 nA	600 µV	1.3 mA	110	2.7	5.5	-40 to 85	8-TSSOP/MSOP	Obsolete
LMV822AIST	STMicroelectronics	General Purpose	1.9	5.5	60 nA	800 µV	300 µA	70	2.5	5.5	-40 to 125	8-TSSOP/MSOP	Active
LMV822IST	STMicroelectronics	General Purpose	1.9	5.5	60 nA	3.5 mV	300 µA	70	2.5	5.5	-40 to 125	8-TSSOP/MSOP	Active
LPV542DGKR	Texas Instruments	CMOS	0.0037	0.008	0.1 pA	1 mV	480 nA	36	1.6	5.5	-40 to 125	8-TSSOP/MSOP	Active
LPV542DGKT	Texas Instruments	CMOS	0.0037	0.008	0.1 pA	1 mV	480 nA	36	1.6	5.5	-40 to 125	8-TSSOP/MSOP	Active
NCS20032DMR2G	onsemi	General Purpose	8	7	1 pA	500 µV	275 µA	96	1.7	5.5	-40 to 125	8-TSSOP/MSOP	Active
NCV20032DMR2G	onsemi	General Purpose	8	7	1 pA	500 µV	275 µA	14	1.7	5.5	-40 to 125	8-TSSOP/MSOP	Active
TLV2462AQPWRG4Q1	Texas Instruments	General Purpose	1.6	6.4	1.3 nA	150 µV	550 µA	80	2.7	6	-40 to 125	8-TSSOP	Active
TLV2462AQPWRQ1	Texas Instruments	General Purpose	1.6	6.4	1.3 nA	150 µV	550 µA	80	2.7	6	-40 to 125	8-TSSOP	Active
TLV2772AQPWRG4Q1	Texas Instruments	CMOS	10.5	5.1	2 pA	500 µV	1 mA	50	2.5	5.5	-40 to 125	8-TSSOP	Active
TLV2772QPWRG4Q1	Texas Instruments	CMOS	10.5	5.1	2 pA	500 µV	1 mA	50	2.5	5.5	-40 to 125	8-TSSOP	Active

Engineering Selection Recommendations

For Direct Replacement (Highest Compatibility): TLV2462AQPWRG4Q1 and TLV2462AQPWRQ1 provide the closest functional match to the MAX4337EUA-T. Both devices maintain general purpose amplifier topology, dual-circuit configuration, and compatible supply voltage range (2.7V to 6V). These parts carry AEC-Q100 automotive qualification and ROHS3 compliance. The extended operating temperature range (-40°C to 125°C) exceeds the original specification. TLV2462AQPWRG4Q1 is supplied in Tape & Reel packaging, while TLV2462AQPWRQ1 is available in standard packaging.

For Low-Power Applications: LMV822AIST and LMV822IST (STMicroelectronics) reduce supply current to 300µA per channel compared to 1.3mA in the MAX4337EUA-T, while maintaining comparable slew rate (1.9V/µs) and gain bandwidth product (5.5MHz). Both devices include AEC-Q100 qualification and support extended temperature operation (-40°C to 125°C). LMV822AIST specifies 600µV input offset voltage; LMV822IST specifies 3.5mV.

For Ultra-Low Input Bias Current Applications: TLV2772AQPWRG4Q1 and TLV2772QPWRG4Q1 (Texas Instruments) employ CMOS input stages with 2pA input bias current and 10.5V/µs slew rate. These devices support the 2.5V to 5.5V supply range and include AEC-Q100 automotive qualification. The higher slew rate accommodates faster signal transitions than the original MAX4337EUA-T.

For Minimum Supply Voltage Flexibility: NCS20032DMR2G and NCV20032DMR2G (onsemi) operate at 1.7V minimum supply voltage, enabling single-cell battery applications. Both devices feature 8V/µs slew rate and 7MHz gain bandwidth product with extended temperature range (-40°C to 125°C). NCS20032DMR2G provides 96mA output current per channel; NCV20032DMR2G provides 14mA output current per channel.

For Ultra-Low Power Consumption: LPV542DGKR and LPV542DGKT (Texas Instruments) consume only 480nA supply current per channel. These CMOS amplifiers operate at 1.6V minimum supply voltage and support extended temperature range (-40°C to 125°C). Note: The significantly reduced slew rate (0.0037V/µs) and gain bandwidth product (8kHz) restrict these devices to DC and very low-frequency applications.

All recommended substitutes maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating.

Frequently Asked Questions (FAQ)

Q1: Can I directly replace MAX4337EUA-T with TLV2462AQPWRG4Q1 without circuit modifications?

A: Yes, for most applications. Both devices feature dual general purpose amplifiers with rail-to-rail output in compatible 8-pin surface mount packages. The TLV2462AQPWRG4Q1 supports the same 2.7V to 5.5V supply range and maintains similar slew rate (1.6V/µs vs. 1.8V/µs) and gain bandwidth product (6.4MHz vs. 5MHz). Verify input offset voltage tolerance (TLV2462 specifies 150µV vs. MAX4337 at 600µV) for precision applications.

Q2: What is the key difference between LMV822AIST and LMV822IST?

A: Both devices are functionally identical general purpose amplifiers with identical electrical specifications except for input offset voltage. LMV822AIST specifies 800µV maximum input offset voltage; LMV822IST specifies 3.5mV maximum. Select LMV822AIST for applications requiring tighter input offset voltage tolerance.

Q3: Why do LPV542DGKR and LPV542DGKT have such low slew rates compared to other substitutes?

A: LPV542 devices employ CMOS input architecture optimized for ultra-low input bias current (0.1pA) and minimal power consumption (480nA per channel). The low slew rate (0.0037V/µs) and reduced gain bandwidth product (8kHz) reflect this design trade-off. These devices are suitable only for DC and very low-frequency signal conditioning applications, not for audio or higher-frequency circuits.

Q4: Are NCS20032DMR2G and NCV20032DMR2G interchangeable?

A: Both devices share identical electrical specifications and operate at 1.7V to 5.5V supply range with 8V/µs slew rate and 7MHz gain bandwidth product. The primary difference is output current capability: NCS20032DMR2G provides 96mA per channel; NCV20032DMR2G provides 14mA per channel. Select based on required output drive capability.

Q5: Which substitute offers the best compatibility with automotive applications?

A: TLV2462AQPWRG4Q1, TLV2462AQPWRQ1, LMV822AIST, LMV822IST, TLV2772AQPWRG4Q1, and TLV2772QPWRG4Q1 all carry AEC-Q100 automotive qualification. TLV2462 series provides the closest electrical match to MAX4337EUA-T with automotive-grade certification.

Q6: Can I use TLV2772AQPWRG4Q1 in place of MAX4337EUA-T for audio applications?

A: TLV2772AQPWRG4Q1 is a CMOS amplifier with 10.5V/µs slew rate and 5.1MHz gain bandwidth product, both suitable for audio frequencies. However, the 2pA input bias current and 500µV input offset voltage differ from MAX4337EUA-T specifications. Verify circuit performance through testing, particularly for low-impedance input stages where input bias current effects are minimal.

Q7: What packaging options are available for substitute parts?

A: Most substitutes are available in 8-TSSOP or 8-MSOP packages matching the MAX4337EUA-T form factor. LMV822AIST and LMV822IST are supplied in 8-MiniSO packaging. LPV542DGKR is available in Cut Tape & Digi-Reel packaging; LPV542DGKT is supplied in Tape & Reel. Verify packaging compatibility with your assembly process.

Q8: Do all substitutes support the full -40°C to 85°C temperature range of MAX4337EUA-T?

A: No. All recommended substitutes support extended temperature range (-40°C to 125°C), which exceeds the original MAX4337EUA-T specification (-40°C to 85°C). This provides additional design margin for high-temperature applications.

Q9: Which substitute has the lowest supply current for battery-powered applications?

A: LPV542DGKR and LPV542DGKT consume only 480nA per channel, significantly lower than MAX4337EUA-T (1.3mA per channel). However, these CMOS devices are limited to DC and very low-frequency applications due to their 8kHz gain bandwidth product. For general purpose applications requiring low power, LMV822AIST and LMV822IST consume 300µA per channel.

Q10: Are there any supply voltage compatibility issues when substituting MAX4337EUA-T?

A: MAX4337EUA-T operates at 2.7V to 5.5V. Most substitutes support this range or lower minimum voltages. LPV542 and TLV2772 series support 2.5V minimum; NCS20032 and NCV20032 support 1.7V minimum. All substitutes support 5.5V maximum. Verify your circuit's actual supply voltage requirements before selection.

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