MCP48CMB24-20E/ST Equivalent & Substitute Parts

Part Overview

The MCP48CMB24-20E/ST is a 12-bit digital-to-analog converter (DAC) manufactured by Microchip Technology, designed for data acquisition applications requiring buffered voltage output. This component integrates four independent DAC channels in a compact 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 MCP48CMB24-20E/ST maintains Active product status with full RoHS3 compliance and REACH unaffected designation. Substitute parts are identified based on matching electrical specifications, package geometry, and functional architecture to ensure direct compatibility in existing circuit designs.

Substiute Parts

MCP48CMB24-20E/ST

Microchip TechnologyIn Stock: 948MCP48CMB24-20E/ST Datasheet

Current PartRFQ

MCP48CVB24-20E/ST

Microchip TechnologyIn Stock: 1114MCP48CVB24-20E/ST Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MCP48CMB24-20E/ST are identified through parametric equivalence across all critical electrical and mechanical specifications. The substitution logic is based on the following key parameters that must remain constant:

• Resolution and Channel Count: 12-bit resolution with 4 independent DAC channels
• Output Configuration: Buffered voltage output with no differential output capability
• Interface Protocol: SPI digital interface for command and data transmission
• Supply Voltage Range: Identical 1.8V to 5.5V for both analog and digital supplies
• Accuracy Specifications: INL/DNL performance of ±1 LSB maximum
• Settling Time: 16µs typical response time
• Package Geometry: 20-TSSOP surface-mount package with 0.173" width (4.40mm)
• Environmental Compliance: RoHS3 compliance and REACH unaffected status
• Operating Temperature Range: -40°C to 125°C

Parts meeting all these criteria are classified as direct parametric equivalents and may be substituted without circuit redesign or board layout modification.

Parameter Comparison

Engineering Selection Recommendations

Both the MCP48CMB24-20E/ST and MCP48CVB24-20E/ST are Active products manufactured by Microchip Technology with identical electrical specifications and package configurations. Selection between these parts is based on availability and supply chain considerations rather than functional differences.

The MCP48CMB24-20E/ST currently maintains 885 pieces in stock inventory, while the MCP48CVB24-20E/ST maintains 1044 pieces in stock inventory. Both components carry full RoHS3 compliance certification and REACH unaffected status, meeting regulatory requirements for industrial and commercial applications.

The 20-TSSOP package geometry is identical for both parts, ensuring direct compatibility with existing printed circuit board layouts and assembly processes. Moisture sensitivity level 3 (168 hours) applies to both components, requiring standard handling and storage protocols during manufacturing and field deployment.

Frequently Asked Questions (FAQ)

Q: Can the MCP48CVB24-20E/ST be used as a direct replacement for the MCP48CMB24-20E/ST?

A: Yes. Both parts are parametric equivalents with identical electrical specifications, package geometry, and functional architecture. No circuit redesign or board layout modification is required for substitution.

Q: Are there differences in the SPI interface protocol between these parts?

A: No. Both the MCP48CMB24-20E/ST and MCP48CVB24-20E/ST implement identical SPI digital interface specifications, ensuring software and firmware compatibility without modification.

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

A: Yes. Both components operate with analog and digital supply voltages from 1.8V to 5.5V, providing identical flexibility for single-supply and dual-supply circuit configurations.

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

A: The designations reflect internal Microchip Technology product line classifications. The parametric specifications, performance characteristics, and package configurations remain identical between the two part numbers.

Q: Are the settling time and accuracy specifications identical?

A: Yes. Both parts deliver 16µs typical settling time and ±1 LSB maximum INL/DNL performance, ensuring equivalent signal fidelity and response characteristics in data acquisition applications.

Q: Can these parts be used interchangeably in high-temperature applications?

A: Yes. Both the MCP48CMB24-20E/ST and MCP48CVB24-20E/ST operate across the full -40°C to 125°C temperature range with identical performance specifications throughout the operating envelope.

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

A: No. Both components carry identical RoHS3 compliance certification and REACH unaffected status, meeting all regulatory requirements for industrial, commercial, and consumer applications.

Q: What is the moisture sensitivity level, and how does it affect handling?

A: Both parts carry MSL 3 (168 hours) designation, requiring standard moisture control procedures during storage, handling, and assembly. Components must be stored in controlled humidity environments and used within specified timeframes after packaging removal.