MCP48CMB18T-20E/ST Equivalent & Substitute Parts

Part Overview

The MCP48CMB18T-20E/ST is a 10-bit digital-to-analog converter (DAC) manufactured by Microchip Technology, designed for data acquisition applications requiring voltage output conversion. This device integrates 8 independent DAC channels 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 supplies. The part maintains Active product status and is ROHS3 compliant with REACH unaffected classification.

Substitute parts are identified when equivalent electrical specifications, package configurations, and compliance certifications align with the primary component, enabling direct replacement in circuit designs without functional degradation.

Substiute Parts

MCP48CMB18T-20E/ST

Microchip TechnologyIn Stock: 978MCP48CMB18T-20E/ST Datasheet

Current PartRFQ

MCP48CVB18T-20E/ST

Microchip TechnologyIn Stock: 3336MCP48CVB18T-20E/ST Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MCP48CMB18T-20E/ST are identified based on strict parametric equivalence across the following critical specifications:

Electrical Equivalence Criteria:

• 10-bit resolution with 8 independent DAC channels
• Buffered voltage output configuration
• SPI serial data interface
• 16µs typical settling time
• ±0.25 LSB INL/DNL performance
• R-2R ladder architecture
• 1.8V to 5.5V dual supply voltage range
• -40°C to 125°C operating temperature range

Mechanical & Packaging Equivalence Criteria:

• 20-TSSOP surface mount package (0.173" width, 4.40mm)
• Tape & Reel packaging format

Compliance & Certification Equivalence:

• ROHS3 compliance
• REACH unaffected status
• Moisture Sensitivity Level 3 (168 Hours)
• Active product status

Parts meeting all specified parameters are classified as parametric equivalents and direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

The MCP48CVB18T-20E/ST qualifies as a direct parametric equivalent to the MCP48CMB18T-20E/ST. Both components are manufactured by Microchip Technology and maintain identical electrical specifications, package configurations, and compliance certifications.

Selection between these parts is based on availability and supply chain considerations. The MCP48CVB18T-20E/ST currently maintains higher inventory levels (3251 pieces) compared to the MCP48CMB18T-20E/ST (934 pieces), making it suitable for applications where supply continuity is a priority.

Both parts satisfy ROHS3 compliance requirements and REACH unaffected status, ensuring regulatory compliance for industrial and commercial applications. The Active product status of both components confirms ongoing manufacturer support and long-term availability.

Frequently Asked Questions (FAQ)

Q: Can the MCP48CVB18T-20E/ST replace the MCP48CMB18T-20E/ST in existing designs?

A: Yes. The MCP48CVB18T-20E/ST is a parametric equivalent with identical electrical specifications, package configuration, and compliance certifications. No circuit modifications are required for direct substitution.

Q: Are there differences in pin configuration between these parts?

A: No. Both parts use the 20-TSSOP package with identical pin assignments, enabling direct PCB compatibility without layout changes.

Q: What is the significance of the different part number designations (CMB vs. CVB)?

A: The designations reflect internal Microchip Technology product line classifications. Both variants meet the same electrical and mechanical specifications for this application category.

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

A: Yes. Both the MCP48CMB18T-20E/ST and MCP48CVB18T-20E/ST operate with analog and digital supply voltages from 1.8V to 5.5V, enabling use in single and dual supply configurations.

Q: Are there any temperature range limitations for either part?

A: No. Both parts operate across the identical temperature range of -40°C to 125°C, suitable for industrial and extended temperature applications.

Q: What is the Moisture Sensitivity Level (MSL) for these components?

A: Both parts carry MSL 3 rating with a 168-hour floor life, requiring standard moisture control handling procedures during storage and assembly.

Q: Are both parts compliant with current environmental regulations?

A: Yes. Both the MCP48CMB18T-20E/ST and MCP48CVB18T-20E/ST are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.