MAX6167AESA Equivalent & Substitute Parts

Part Overview

The MAX6167AESA is a Series Voltage Reference IC manufactured by Analog Devices Inc./Maxim Integrated, designed to provide a fixed 4.5V output with ±0.04% tolerance. This component operates as a precision voltage reference in power management applications, delivering stable reference voltages for analog and mixed-signal circuits. The MAX6167AESA is classified as obsolete, which necessitates identification of active equivalent parts for new designs and ongoing production requirements. The availability of substitute parts ensures design continuity and supply chain reliability for applications requiring this specific reference voltage and performance characteristics.

Substiute Parts

MAX6167AESA

Analog Devices Inc./Maxim IntegratedIn Stock: 2972MAX6167AESA Datasheet

Current PartRFQ

MAX6167AESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1743MAX6167AESA+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX6167AESA is determined by strict equivalence across the following critical parameters:

• Fixed output voltage of 4.5V
• Output current capability of 5 mA
• Tolerance specification of ±0.04%
• Temperature coefficient of 5 ppm/°C
• Noise characteristics: 55 µVp-p (0.1Hz to 10Hz) and 55 µVrms (10Hz to 10kHz)
• Input voltage range of 4.7V ~ 12.6V
• Supply current of 120 µA
• Operating temperature range of -40°C ~ 85°C
• 8-SOIC surface mount package with 0.154" (3.90mm) width
• Series reference type with fixed output configuration

The MAX6167AESA+ qualifies as a direct substitute based on identical electrical specifications and mechanical compatibility. The primary distinction between these parts is product status and packaging format, with the MAX6167AESA+ maintaining active production status and offering improved compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The MAX6167AESA+ is the direct equivalent substitute for the obsolete MAX6167AESA. Both parts maintain identical electrical and mechanical specifications, ensuring pin-for-pin and functional compatibility in existing circuit designs.

Selection between these parts is determined by product availability and compliance requirements:

• The MAX6167AESA is obsolete and should not be selected for new designs. Existing inventory may be available for legacy production support only.
• The MAX6167AESA+ is the active production part and is recommended for all new designs and ongoing production. This part offers ROHS3 compliance, whereas the original MAX6167AESA is RoHS non-compliant.
• Both parts are REACH Unaffected and classified under ECCN EAR99.
• The MAX6167AESA+ is supplied in Tube packaging, which is standard for active production parts.

For applications requiring a 4.5V precision voltage reference with ±0.04% tolerance in an 8-SOIC package, the MAX6167AESA+ provides full functional and mechanical compatibility with improved regulatory compliance status.

Frequently Asked Questions (FAQ)

Q: Can the MAX6167AESA+ be used as a direct replacement for the MAX6167AESA?

A: Yes. The MAX6167AESA+ is a direct substitute with identical electrical specifications and mechanical compatibility. Both parts deliver 4.5V fixed output with ±0.04% tolerance, 5 mA output current, and operate within the same input voltage range and temperature specifications. The 8-SOIC package dimensions are identical, enabling direct PCB layout compatibility.

Q: What is the primary difference between MAX6167AESA and MAX6167AESA+?

A: The MAX6167AESA is obsolete, while the MAX6167AESA+ is in active production. The MAX6167AESA+ also provides ROHS3 compliance, whereas the original part is RoHS non-compliant. All electrical and mechanical parameters remain identical.

Q: Are there any package or pinout differences between these parts?

A: No. Both parts use the 8-SOIC package with 0.154" (3.90mm) width. Pinout and mechanical dimensions are identical. The only packaging difference is the distribution format: the MAX6167AESA+ is supplied in Tube packaging.

Q: What are the critical parameters that define substitution eligibility for this voltage reference?

A: Substitution is determined by matching the fixed output voltage (4.5V), output current (5 mA), tolerance (±0.04%), temperature coefficient (5 ppm/°C), noise specifications, input voltage range (4.7V ~ 12.6V), supply current (120 µA), operating temperature range (-40°C ~ 85°C), and 8-SOIC package configuration. Any deviation in these parameters disqualifies a part as a direct substitute.

Q: Should the MAX6167AESA be used in new designs?

A: No. The MAX6167AESA is obsolete and should not be selected for new designs. The MAX6167AESA+ is the active production equivalent and is the appropriate choice for all new applications.