MAX4069AUB+ Equivalent & Substitute Parts Reference

Part Overview

The MAX4069AUB+ is a current sense amplifier manufactured by Analog Devices Inc./Maxim Integrated, designed for precision current measurement applications. This single-circuit linear amplifier operates across a wide supply voltage range of 2.7 V to 24 V and delivers a -3dB bandwidth of 100 kHz, making it suitable for low-power monitoring and control systems. The device is classified as Active product status with full RoHS3 compliance and REACH unaffected designation. Identifying equivalent substitute parts ensures design flexibility, supply chain continuity, and alternative sourcing options when the primary component becomes unavailable or when design specifications require functional equivalents.

Substiute Parts

MAX4069AUB+

Analog Devices Inc./Maxim IntegratedIn Stock: 902MAX4069AUB+ Datasheet

Current PartRFQ

MAX4069AUB+

Analog Devices Inc./Maxim IntegratedIn Stock: 902MAX4069AUB+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX4069AUB+ current sense amplifier is determined by strict equivalence across the following critical parameters:

Functional Equivalence Criteria:

• Amplifier Type: Current Sense (single-circuit configuration)
• Bandwidth Performance: -3dB Bandwidth of 100 kHz
• Input Characteristics: Current Input Bias ≤ 2.4 µA and Voltage Input Offset ≤ 80 µV
• Supply Voltage Compatibility: Operating range 2.7 V to 24 V
• Supply Current: 100 µA maximum

Mechanical & Packaging Equivalence Criteria:

• Mounting Type: Surface Mount only
• Package Configuration: 10-pin TFSOP/MSOP with 3.00mm width
• Thermal Performance: Operating temperature range -40°C to 125°C

Compliance & Regulatory Equivalence:

• RoHS3 Compliance required
• REACH Unaffected status
• Product Status: Active

Substitute parts must satisfy all criteria within the specified tolerances. No parameter relaxation or derating is permitted for substitution classification.

Parameter Comparison

Engineering Selection Recommendations

The MAX4069AUB+ current sense amplifier is classified as an Active product with full RoHS3 compliance and REACH unaffected regulatory status. Both the main part and identified substitute maintain identical electrical specifications, mechanical packaging, and compliance certifications. Selection between equivalent units should be based on:

Availability & Lead Time: Verify current inventory status and procurement timelines with authorized distributors.

Packaging Condition: Confirm tube packaging specification matches assembly requirements and handling procedures.

Compliance Documentation: Verify RoHS3 and REACH compliance certificates are current and applicable to the manufacturing date code.

Thermal Management: Confirm PCB layout and thermal design accommodate the 100 µA supply current and operating temperature range of -40°C to 125°C.

Supply Voltage Stability: Ensure power supply design maintains voltage within the 2.7 V to 24 V operating range under all load conditions.

Frequently Asked Questions (FAQ)

Q: What defines a valid substitute for the MAX4069AUB+ current sense amplifier?

A: A valid substitute must match all electrical parameters (bandwidth, input bias current, input offset voltage, supply current, and supply voltage range), operate across the identical temperature range (-40°C to 125°C), use the same 10-pin TFSOP/MSOP surface mount package, and maintain RoHS3 compliance and Active product status.

Q: Can the MAX4069AUB+ be substituted with a different package type?

A: No. The 10-TFSOP and 10-MSOP packages with 3.00mm width are mechanical and electrical requirements for substitution. Different package types are not considered equivalent due to PCB layout, thermal characteristics, and pin configuration differences.

Q: Are there any performance trade-offs when using substitute parts?

A: No trade-offs exist between equivalent parts. All substitute units specified in this reference maintain identical electrical performance, including the 100 kHz bandwidth, 2.4 µA input bias current, and 80 µV input offset voltage.

Q: What is the significance of the 100 µA supply current specification?

A: The 100 µA supply current is a critical parameter for power budget calculations in battery-powered and low-power applications. Substitute parts must maintain this specification to ensure equivalent power consumption and thermal performance.

Q: Does RoHS3 compliance affect substitution eligibility?

A: Yes. Both the main part and any substitute must carry current RoHS3 compliance certification. This is a mandatory regulatory requirement for equivalent component selection in most markets.

Q: Can the MAX4069AUB+ operate below 2.7 V or above 24 V?

A: No. The specified supply voltage range of 2.7 V to 24 V is the absolute operating limit. Operation outside this range is not supported and voids performance guarantees.

Q: What is the difference between the 10-TFSOP and 10-MSOP package designations?

A: Both designations refer to thin small-outline packages with identical pin counts, spacing, and electrical characteristics. The 0.118" (3.00mm) width specification ensures mechanical compatibility. Consult the device datasheet for detailed dimensional drawings.