MCP48CVB28-20E/ST Equivalent & Substitute Parts

Part Overview

The MCP48CVB28-20E/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 827 units available in stock. 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

MCP48CVB28-20E/ST

Microchip TechnologyIn Stock: 884MCP48CVB28-20E/ST Datasheet

Current PartRFQ

MCP48CMB28-20E/ST

Microchip TechnologyIn Stock: 1196MCP48CMB28-20E/ST Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MCP48CVB28-20E/ST are identified based on strict equivalence across all critical electrical and mechanical parameters. The substitution logic is based on the following key parameters that must remain constant:

• Resolution and Converter Count: 12-bit resolution with 8 D/A converters
• Output Configuration: Voltage-buffered output with no differential output capability
• Interface Protocol: SPI data interface
• Supply Voltage Ranges: Identical analog and digital supply voltage specifications (1.8V ~ 5.5V)
• Electrical Performance: Matching settling time (16µs typical), INL/DNL specifications (±1 LSB maximum), and R-2R architecture
• Thermal Operating Range: -40°C to 125°C
• Package Specification: 20-TSSOP surface mount package with identical physical dimensions
• Compliance and Certifications: ROHS3 compliance, REACH unaffected status, and identical MSL rating

Parts meeting all these criteria are classified as parametric equivalents and direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

Both the MCP48CVB28-20E/ST and MCP48CMB28-20E/ST are active production components from Microchip Technology with identical electrical specifications and package configurations. Selection between these parts is based on inventory availability and supply chain considerations rather than functional differences.

The MCP48CVB28-20E/ST maintains 827 units in current stock inventory. The MCP48CMB28-20E/ST provides an alternative source with 1,133 units available, offering increased supply availability for high-volume applications or extended lead-time mitigation.

Both components satisfy ROHS3 compliance requirements and REACH regulatory status, making them suitable for applications subject to environmental and hazardous substance restrictions. The identical MSL rating of 3 (168 hours) requires equivalent moisture control and handling procedures during storage and assembly operations.

Frequently Asked Questions (FAQ)

Q: Can the MCP48CMB28-20E/ST be used as a direct replacement for the MCP48CVB28-20E/ST?

A: Yes. Both parts are parametric equivalents with identical electrical specifications, including 12-bit resolution, 8 D/A converters, SPI interface, supply voltage ranges (1.8V ~ 5.5V), settling time (16µs typical), and operating temperature range (-40°C ~ 125°C). The 20-TSSOP package dimensions and pinout are identical, enabling direct PCB substitution without circuit modification.

Q: Are there any differences in compliance or certifications between these parts?

A: No. Both the MCP48CVB28-20E/ST and MCP48CMB28-20E/ST carry identical ROHS3 compliance status and REACH unaffected designation. Moisture sensitivity levels are equivalent at MSL 3 (168 hours), requiring identical handling and storage protocols.

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

A: The part number designations reflect internal Microchip Technology product line classifications. These designations do not indicate functional or electrical differences. Both variants meet the same electrical specifications and are suitable for equivalent applications.

Q: Can these parts be used interchangeably in existing designs without PCB layout modifications?

A: Yes. The identical 20-TSSOP package specification, including physical dimensions (0.173" width, 4.40mm), ensures mechanical and electrical compatibility. No PCB layout changes are required for substitution.

Q: What factors should be considered when selecting between available inventory quantities?

A: Selection should be based on project timeline and supply chain requirements. The MCP48CVB28-20E/ST offers 827 units in stock, while the MCP48CMB28-20E/ST provides 1,133 units. For applications requiring extended production runs or multiple procurement cycles, the higher inventory availability of the MCP48CMB28-20E/ST may reduce supply chain risk.

Q: Are the settling time and INL/DNL specifications identical between these parts?

A: Yes. Both parts specify 16µs typical settling time and ±1 LSB maximum INL/DNL performance. The R-2R architecture is identical, ensuring equivalent analog conversion characteristics and signal fidelity.