MAX146ACAP Equivalent & Substitute Parts

Part Overview

The MAX146ACAP is a 12-bit Analog-to-Digital Converter (ADC) manufactured by Analog Devices Inc./Maxim Integrated, designed for data acquisition applications requiring SAR (Successive Approximation Register) architecture. This device features 4 or 8 single-ended or differential input channels with SPI data interface and operates from 2.7V to 3.6V supply voltage.

The MAX146ACAP is classified as obsolete. Equivalent substitute parts are available in active product status, making them suitable for new designs and ongoing production requirements where the original part is no longer readily available.

Substiute Parts

MAX146ACAP

Analog Devices Inc./Maxim IntegratedIn Stock: 2035MAX146ACAP Datasheet

Current PartRFQ

MAX146ACAP+

Analog Devices Inc./Maxim IntegratedIn Stock: 1799MAX146ACAP+ Datasheet

DirectRFQ

MAX146BCAP+

Analog Devices Inc./Maxim IntegratedIn Stock: 898MAX146BCAP+ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MAX146ACAP are determined by electrical and mechanical parameter equivalence within the MAX146 product family. The substitution logic is based on the following criteria:

Electrical Parameters (Must Match):

• Resolution: 12 Bit
• Sampling Rate: 133 kSPS
• Input Channels: 4, 8
• Input Type: Differential, Single Ended
• Data Interface: SPI
• Architecture: SAR
• Reference Type: External, Internal
• Supply Voltage Range: 2.7V ~ 3.6V (both analog and digital)
• Operating Temperature: 0°C ~ 70°C

Mechanical Parameters (Must Match):

• Package Type: 20-SSOP
• Package Dimensions: 0.209", 5.30mm Width
• Mounting Type: Surface Mount

All identified substitute parts maintain identical electrical and mechanical specifications, ensuring direct functional compatibility in existing circuit designs.

Parameter Comparison

Engineering Selection Recommendations

MAX146ACAP+ (Direct Manufacturer Equivalent): The MAX146ACAP+ is the primary substitute for the obsolete MAX146ACAP. This part maintains identical electrical and mechanical specifications while offering active product status. The MAX146ACAP+ is ROHS3 compliant and supplied in tube packaging, making it suitable for both new designs and production continuity. This variant is the recommended choice for direct replacement applications.

MAX146BCAP+ (Parametric Equivalent): The MAX146BCAP+ provides an alternative substitute within the MAX146 product family. This part is also active, ROHS3 compliant, and maintains all electrical and mechanical parameters identical to the MAX146ACAP. The MAX146BCAP+ is supplied in tube packaging and represents a secondary equivalent option.

Both substitute parts are REACH unaffected and classified under ECCN EAR99, maintaining the same regulatory status as the original part.

Frequently Asked Questions (FAQ)

Q: Can MAX146ACAP+ be used as a direct replacement for MAX146ACAP? A: Yes. The MAX146ACAP+ is electrically and mechanically identical to the MAX146ACAP, with identical resolution (12-bit), sampling rate (133 kSPS), input configuration (4, 8 channels), data interface (SPI), and package specifications (20-SSOP). The primary difference is product status (active vs. obsolete) and RoHS compliance.

Q: What is the difference between MAX146ACAP+ and MAX146BCAP+? A: Both parts are parametric equivalents with identical electrical specifications and package dimensions. The distinction lies in the product variant designation (A vs. B grade), though all electrical and mechanical parameters remain equivalent for substitution purposes.

Q: Are the substitute parts compatible with existing PCB layouts designed for MAX146ACAP? A: Yes. Both MAX146ACAP+ and MAX146BCAP+ use the identical 20-SSOP package with 0.209" width and 5.30mm dimensions. Pin configuration and footprint compatibility are maintained, allowing direct PCB layout reuse without modification.

Q: What packaging formats are available for substitute parts? A: The MAX146ACAP+ and MAX146BCAP+ are supplied in tube packaging, whereas the original MAX146ACAP was supplied in bulk format. Tube packaging is standard for active production parts and does not affect electrical performance or circuit compatibility.

Q: Are the substitute parts RoHS compliant? A: Yes. Both MAX146ACAP+ and MAX146BCAP+ are ROHS3 compliant, whereas the original MAX146ACAP is RoHS non-compliant. This compliance improvement makes the substitutes suitable for applications with RoHS requirements.

Q: Can both substitute parts be used interchangeably in the same design? A: Yes. MAX146ACAP+ and MAX146BCAP+ maintain identical electrical and mechanical specifications, allowing interchangeable use within the same circuit design without performance variation.