MAX4437EUA Equivalent & Substitute Parts

Part Overview

The MAX4437EUA is a general purpose operational amplifier manufactured by Analog Devices Inc./Maxim Integrated, featuring dual circuits in an 8-uMAX/uSOP surface mount package. This device is classified as obsolete, making equivalent and substitute parts necessary for new designs and production continuity. The MAX4437EUA delivers 388 V/µs slew rate and 150 MHz bandwidth, suitable for general purpose amplification applications requiring moderate speed performance.

Substiute Parts

MAX4437EUA

Analog Devices Inc./Maxim IntegratedIn Stock: 1120MAX4437EUA Datasheet

Current PartRFQ

LMV832MM/NOPB

National SemiconductorIn Stock: 3051LMV832MM/NOPB Datasheet

MFR RecommendedRFQ

OPA2301AIDGKT

Texas InstrumentsIn Stock: 2294OPA2301AIDGKT Datasheet

MFR RecommendedRFQ

S-19610AB0A-K8T2U

ABLIC Inc.In Stock: 4770S-19610AB0A-K8T2U Datasheet

MFR RecommendedRFQ

THS4222DGN

Texas InstrumentsIn Stock: 801THS4222DGN Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX4437EUA is determined by the following critical parameters: dual circuit configuration (2 circuits), surface mount packaging in 8-pin TSSOP/MSOP form factor, supply voltage compatibility within the 4.5 V to 5.5 V range, and functional amplifier performance characteristics. The substitute parts listed below maintain compatibility across these core parameters while offering active product status and improved availability.

The four substitute parts are grouped by their amplifier technology and performance characteristics:

Group 1 - CMOS Low Power Amplifiers: LMV832MM/NOPB and S-19610AB0A-K8T2U represent ultra-low power CMOS implementations with significantly reduced supply current consumption.

Group 2 - CMOS High Performance Amplifier: OPA2301AIDGKT provides CMOS technology with bandwidth matching the original device while maintaining low input bias current.

Group 3 - Voltage Feedback High Speed Amplifier: THS4222DGN delivers voltage feedback architecture with enhanced slew rate and bandwidth performance.

All substitute parts maintain the dual-circuit configuration, surface mount technology, and 8-pin package footprint compatibility. Supply voltage ranges accommodate the original 4.5 V to 5.5 V specification, with most substitutes offering extended upper voltage limits.

Parameter Comparison

Engineering Selection Recommendations

OPA2301AIDGKT is the primary substitute for direct functional replacement. This Texas Instruments CMOS amplifier maintains 150 MHz bandwidth matching the MAX4437EUA, delivers comparable 1 mV input offset voltage, and provides active product status with ROHS3 compliance. The OPA2301AIDGKT operates across the required 4.5 V to 5.5 V supply range and extends the upper temperature rating to 125°C. Slew rate of 80 V/µs is lower than the original but sufficient for general purpose applications. Current supply consumption of 9.5 mA per dual channels is reduced compared to the original 15 mA specification.

THS4222DGN is the high-performance alternative when enhanced slew rate (990 V/µs) and bandwidth (230 MHz) are required. This Texas Instruments voltage feedback amplifier provides superior dynamic performance with rail-to-rail output capability and extended supply voltage range to 15 V. Output current per channel reaches 100 mA, exceeding the original 65 mA specification. Operating temperature range matches the original at -40°C to 85°C. ROHS3 compliance and MSL 1 rating ensure manufacturing compatibility.

LMV832MM/NOPB and S-19610AB0A-K8T2U are ultra-low power alternatives for applications where supply current minimization is critical. LMV832MM/NOPB reduces supply current to 0.47 mA per dual channels with input bias current of 0.1 pA, but operates at only 3.3 MHz bandwidth. S-19610AB0A-K8T2U from ABLIC Inc. delivers the lowest supply current at 2 mA per dual channels with 3 MHz bandwidth and 1 pA input bias current. Both devices extend operating temperature to 125°C and maintain ROHS3 compliance. These options are suitable only for applications where bandwidth requirements are significantly lower than the original specification.

All substitute parts maintain surface mount technology and 8-pin package footprint compatibility with the MAX4437EUA, enabling direct PCB layout reuse with minimal design modification.

Frequently Asked Questions (FAQ)

Q: Can OPA2301AIDGKT directly replace MAX4437EUA without circuit modification?

A: OPA2301AIDGKT maintains functional compatibility through matching 150 MHz bandwidth, 1 mV input offset voltage, and dual-circuit configuration. The 8-pin TSSOP/MSOP package footprint is identical. However, slew rate reduction from 388 V/µs to 80 V/µs and supply current reduction from 15 mA to 9.5 mA per dual channels may affect high-speed transient response in bandwidth-limited applications. Circuit validation is required for applications sensitive to slew rate performance.

Q: What is the key difference between CMOS and voltage feedback amplifier substitutes?

A: CMOS substitutes (LMV832MM/NOPB, OPA2301AIDGKT, S-19610AB0A-K8T2U) feature extremely low input bias current (0.1 pA to 1 pA) and reduced supply current consumption. Voltage feedback amplifier THS4222DGN delivers higher slew rate (990 V/µs) and bandwidth (230 MHz) with rail-to-rail output capability but operates at higher input bias current (900 nA). Selection depends on application requirements for input impedance, speed, and power consumption.

Q: Are all substitute parts compatible with the 4.5 V to 5.5 V supply range?

A: All four substitute parts operate within the 4.5 V to 5.5 V range specified for MAX4437EUA. LMV832MM/NOPB, OPA2301AIDGKT, and S-19610AB0A-K8T2U extend the minimum supply voltage to 2.7 V. THS4222DGN extends the maximum supply voltage to 15 V, providing additional flexibility for multi-supply designs.

Q: Which substitute offers the best bandwidth performance?

A: THS4222DGN provides the highest bandwidth at 230 MHz with 990 V/µs slew rate, exceeding the original MAX4437EUA specification of 150 MHz and 388 V/µs. OPA2301AIDGKT matches the original 150 MHz bandwidth. LMV832MM/NOPB and S-19610AB0A-K8T2U operate at significantly lower bandwidth (3 to 3.3 MHz) and are suitable only for low-frequency applications.

Q: What is the package compatibility between MAX4437EUA and substitute parts?

A: MAX4437EUA uses 8-uMAX/uSOP package. OPA2301AIDGKT, LMV832MM/NOPB, and THS4222DGN are available in 8-TSSOP/8-MSOP packages with identical 0.118" (3.00mm) width, enabling direct footprint compatibility. S-19610AB0A-K8T2U uses 8-WSSOP/8-MSOP package with 0.110" (2.80mm) width, requiring PCB layout verification for pin-to-pin spacing compatibility.

Q: Are all substitute parts RoHS3 compliant?

A: OPA2301AIDGKT, S-19610AB0A-K8T2U, and THS4222DGN are explicitly ROHS3 compliant. LMV832MM/NOPB RoHS status is not specified in available documentation. Verify RoHS compliance status with the supplier for LMV832MM/NOPB when RoHS3 certification is required.

Q: Which substitute has the lowest power consumption?

A: S-19610AB0A-K8T2U delivers the lowest supply current at 2 mA per dual channels, followed by LMV832MM/NOPB at 0.47 mA per dual channels. Both are CMOS implementations optimized for ultra-low power applications. Original MAX4437EUA consumes 15 mA per dual channels. OPA2301AIDGKT consumes 9.5 mA, and THS4222DGN consumes 14 mA per dual channels.

Q: What is the operating temperature range for each substitute?

A: MAX4437EUA operates from -40°C to 85°C. OPA2301AIDGKT, LMV832MM/NOPB, and S-19610AB0A-K8T2U extend the upper temperature limit to 125°C. THS4222DGN matches the original -40°C to 85°C range. Extended temperature rating provides design flexibility for industrial and automotive applications.