MCP48CVB18-20E/ST Equivalent & Substitute Parts

Part Overview

The MCP48CVB18-20E/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 domains. The part is currently in active production status with 1193 units available in 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

MCP48CVB18-20E/ST

Microchip TechnologyIn Stock: 1231MCP48CVB18-20E/ST Datasheet

Current PartRFQ

MCP48CMB18-20E/ST

Microchip TechnologyIn Stock: 1213MCP48CMB18-20E/ST Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MCP48CVB18-20E/ST are identified based on strict parametric equivalence across all critical electrical and mechanical specifications. The substitution logic is based on the following key parameters that must remain identical:

• Resolution and Channel Count: 10-bit resolution with 8 independent DAC channels
• Output Configuration: Voltage-buffered output type with no differential output capability
• Interface Protocol: SPI data interface for digital communication
• Supply Voltage Ranges: Identical analog and digital supply voltage specifications (1.8V ~ 5.5V)
• Accuracy Specifications: INL/DNL performance of ±0.25 LSB for both integral and differential nonlinearity
• Settling Time: 16µs typical settling time
• Package Specification: 20-TSSOP surface mount package with 0.173" width (4.40mm)
• Compliance and Certifications: ROHS3 compliance, REACH unaffected status, and MSL 3 rating
• Operating Temperature Range: -40°C to 125°C operational limits
• Architecture: R-2R converter architecture

Only parts meeting all these criteria are listed as direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

The MCP48CVB18-20E/ST and MCP48CMB18-20E/ST are parametrically equivalent devices suitable for direct substitution in data acquisition applications. Both parts maintain active production status with Microchip Technology, ensuring long-term availability and supply chain stability. Selection between these parts should be based on current inventory availability and lead time requirements, as both components satisfy identical electrical specifications, package requirements, and regulatory compliance standards.

Both parts carry ROHS3 compliance certification and REACH unaffected status, confirming adherence to environmental and hazardous substance regulations. The MSL 3 moisture sensitivity rating applies to both devices, requiring standard moisture control procedures during storage and handling. The 20-TSSOP surface mount package is identical across both parts, enabling direct PCB layout compatibility without design modifications.

Current inventory levels show 1193 units of MCP48CVB18-20E/ST and 1113 units of MCP48CMB18-20E/ST available in stock, providing flexibility in component procurement decisions.

Frequently Asked Questions (FAQ)

Q: Can MCP48CMB18-20E/ST be used as a direct replacement for MCP48CVB18-20E/ST?

A: Yes. Both parts are parametrically equivalent across all electrical specifications, package configuration, and compliance certifications. Direct substitution is supported without circuit design modifications.

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

A: No. Both parts implement identical SPI data interface specifications and operate with the same communication protocol.

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

A: Yes. Both MCP48CVB18-20E/ST and MCP48CMB18-20E/ST operate with analog and digital supply voltages from 1.8V to 5.5V.

Q: Is the 20-TSSOP package identical for both parts?

A: Yes. Both parts use the 20-TSSOP package with 0.173" width (4.40mm), ensuring identical PCB footprint and mounting requirements.

Q: What is the moisture sensitivity level for these parts?

A: Both parts carry MSL 3 rating with 168-hour moisture absorption limits. Standard moisture control procedures apply during storage and handling.

Q: Are both parts RoHS compliant?

A: Yes. Both MCP48CVB18-20E/ST and MCP48CMB18-20E/ST are ROHS3 compliant and REACH unaffected.

Q: What is the settling time specification for these DAC devices?

A: Both parts specify 16µs typical settling time for voltage output stabilization.

Q: How many independent DAC channels are integrated in each part?

A: Both parts integrate 8 independent 10-bit DAC channels in a single package.

Q: What is the accuracy specification for these converters?

A: Both parts specify INL/DNL performance of ±0.25 LSB for integral and differential nonlinearity.

Q: Are both parts currently in active production?

A: Yes. Both MCP48CVB18-20E/ST and MCP48CMB18-20E/ST maintain active product status with Microchip Technology.