MCP48CMB28T-20E/ST Equivalent & Substitute Parts

Part Overview

The MCP48CMB28T-20E/ST is a 12-bit Digital to Analog Converter (DAC) manufactured by Microchip Technology, designed for data acquisition applications requiring voltage output conversion. This device integrates 8 D/A converters in a 20-TSSOP surface mount package and operates across a wide supply voltage range of 1.8V to 5.5V for both analog and digital domains. The part is currently in active production status with 976 units available in new original inventory. Substitute parts are identified when equivalent electrical specifications, package configurations, and compliance certifications align with the original component, enabling direct replacement in circuit designs without functional degradation.

Substiute Parts

MCP48CMB28T-20E/ST

Microchip TechnologyIn Stock: 1061MCP48CMB28T-20E/ST Datasheet

Current PartRFQ

MCP48CVB28T-20E/ST

Microchip TechnologyIn Stock: 3662MCP48CVB28T-20E/ST Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MCP48CMB28T-20E/ST are identified based on strict equivalence across the following critical parameters:

Electrical Specifications:

• 12-bit resolution with 8 integrated D/A converters
• Voltage-buffered output configuration
• SPI serial data interface
• Dual supply voltage range: 1.8V to 5.5V (analog and digital)
• R-2R converter architecture
• Settling time of 16µs (typical)
• INL/DNL specification of ±1 LSB (maximum)

Physical & Environmental Specifications:

• 20-TSSOP surface mount package with 0.173" width (4.40mm)
• Operating temperature range: -40°C to 125°C
• Moisture Sensitivity Level 3 (168 hours)

Compliance & Regulatory:

• ROHS3 compliance
• REACH unaffected status
• ECCN classification: EAR99
• HTSUS code: 8542.39.0001

Substitute parts must match all parameters listed above to ensure functional and mechanical compatibility without circuit redesign or board layout modification.

Parameter Comparison

Engineering Selection Recommendations

Both the MCP48CMB28T-20E/ST and MCP48CVB28T-20E/ST are active production components from Microchip Technology with identical electrical specifications, package configurations, and regulatory compliance certifications. Selection between these parts is based on inventory availability and supply chain considerations rather than functional differences.

The MCP48CVB28T-20E/ST offers higher inventory availability (3565 units) compared to the MCP48CMB28T-20E/ST (976 units), making it suitable for applications requiring extended lead time assurance or high-volume production runs. Both parts satisfy ROHS3 compliance requirements and maintain equivalent performance across all specified operating conditions.

For applications where the original part number MCP48CMB28T-20E/ST is specified in design documentation, the MCP48CVB28T-20E/ST provides direct functional substitution without circuit modification, PCB redesign, or firmware changes.

Frequently Asked Questions (FAQ)

Q: Can MCP48CVB28T-20E/ST replace MCP48CMB28T-20E/ST in existing designs?

A: Yes. Both parts are electrically and mechanically equivalent across all specified parameters including resolution, converter count, output type, supply voltage range, package configuration, and operating temperature. Direct substitution is possible without circuit redesign.

Q: Are the pin configurations identical between these parts?

A: Yes. Both parts use the 20-TSSOP package with 0.173" width (4.40mm). Pin assignments and functional configurations are identical, enabling direct PCB placement without layout modification.

Q: What is the difference between MCP48CMB28T-20E/ST and MCP48CVB28T-20E/ST?

A: The parts are functionally equivalent. The difference in part number designation reflects internal Microchip Technology product line categorization. All electrical specifications, performance characteristics, and compliance certifications are identical.

Q: Do both parts support the same supply voltage range?

A: Yes. Both parts operate with analog supply voltage of 1.8V to 5.5V and digital supply voltage of 1.8V to 5.5V. They support identical reference type configurations (External, Internal, Supply).

Q: Are both parts RoHS compliant?

A: Yes. Both MCP48CMB28T-20E/ST and MCP48CVB28T-20E/ST are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What is the Moisture Sensitivity Level for these parts?

A: Both parts have Moisture Sensitivity Level 3 with a 168-hour rating, requiring standard moisture control handling during storage and assembly.

Q: Can these parts be used interchangeably in high-volume production?

A: Yes. Both parts meet identical specifications and certifications. Selection can be based on inventory availability and supply chain logistics without affecting product performance or reliability.