MAX4069AUB Current Sense Amplifier Equivalent & Substitute Parts

Part Overview

The MAX4069AUB is a current sense amplifier integrated circuit manufactured by Analog Devices Inc./Maxim Integrated. This linear amplifier device is designed for single-circuit current sensing applications and operates across a wide supply voltage range of 2.7 V to 24 V. The part is classified as obsolete, making identification of active equivalent substitutes essential for ongoing design support and procurement continuity. Current sense amplifiers in this category are critical for power management, battery monitoring, and load current measurement applications where precision and low power consumption are required.

Substiute Parts

MAX4069AUB

Analog Devices Inc./Maxim IntegratedIn Stock: 1127MAX4069AUB Datasheet

Current PartRFQ

MAX4069AUB+

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

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX4069AUB is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Amplifier Type: Current Sense (single circuit configuration)
• -3dB Bandwidth: 100 kHz
• Current - Input Bias: 2.4 µA
• Voltage - Input Offset: 80 µV
• Current - Supply: 100 µA
• Voltage - Supply Span: 2.7 V to 24 V
• Operating Temperature Range: -40°C to 125°C

Mechanical & Packaging Equivalence Criteria:

• Mounting Type: Surface Mount
• Package / Case: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
• Supplier Device Package: 10-uMAX/uSOP

Compliance Equivalence Criteria:

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

The MAX4069AUB+ qualifies as a direct substitute based on identical electrical specifications, mechanical packaging, and regulatory compliance. The primary distinction is product status: MAX4069AUB is obsolete, while MAX4069AUB+ is active, and packaging format (MAX4069AUB+ is supplied in Tube packaging).

Parameter Comparison

Engineering Selection Recommendations

The MAX4069AUB+ is a direct functional and mechanical equivalent to the MAX4069AUB. Selection between these parts is determined by availability and product lifecycle status:

MAX4069AUB (Obsolete): This part number is classified as obsolete. While inventory may be available through existing stock channels (1052 Pcs reported in stock), procurement of obsolete components carries supply chain risk and is not recommended for new designs or long-term production requirements.

MAX4069AUB+ (Active): This part number is actively manufactured and supported by Analog Devices Inc./Maxim Integrated. It provides identical electrical performance, mechanical compatibility, and regulatory compliance (ROHS3 Compliant, REACH Unaffected). The MAX4069AUB+ is supplied in Tube packaging format and is the recommended selection for all new applications and ongoing production.

Both parts meet the same environmental and compliance standards. The transition from MAX4069AUB to MAX4069AUB+ involves no circuit redesign, PCB layout modification, or functional verification beyond standard component qualification procedures.

Frequently Asked Questions (FAQ)

Q: Can MAX4069AUB+ be used as a direct replacement for MAX4069AUB in existing designs?

A: Yes. The MAX4069AUB+ is electrically and mechanically identical to the MAX4069AUB. No circuit modifications, PCB layout changes, or firmware updates are required. Both parts operate identically across the full specified parameter range.

Q: What is the difference between MAX4069AUB and MAX4069AUB+?

A: The primary differences are product status and packaging format. MAX4069AUB is obsolete; MAX4069AUB+ is active. MAX4069AUB+ is supplied in Tube packaging. All electrical specifications, performance characteristics, and compliance certifications are identical.

Q: Are there any compatibility issues with the 10-uMAX/uSOP package?

A: No. Both parts use the identical 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) package footprint. PCB designs, solder reflow profiles, and assembly processes require no modification.

Q: Is MAX4069AUB+ ROHS3 compliant?

A: Yes. MAX4069AUB+ is ROHS3 Compliant with Moisture Sensitivity Level 1 (Unlimited), identical to the original MAX4069AUB.

Q: What is the supply voltage operating range for both parts?

A: Both MAX4069AUB and MAX4069AUB+ operate across a supply voltage range of 2.7 V to 24 V, supporting applications from low-power battery-operated systems to industrial control circuits.

Q: Can these parts be used interchangeably in production?

A: Yes. From an engineering standpoint, MAX4069AUB and MAX4069AUB+ are fully interchangeable. However, MAX4069AUB+ is recommended for new production due to its active status and assured long-term availability.