MCP48CMB08-20E/ST Equivalent & Substitute Parts

Part Overview

The MCP48CMB08-20E/ST is an 8-bit Digital to Analog Converter (DAC) manufactured by Microchip Technology, designed for data acquisition applications requiring voltage output conversion. This component operates across a wide supply voltage range of 1.8V to 5.5V for both analog and digital supplies, making it suitable for diverse embedded systems and industrial applications. The device is currently in active production status with 1012 units available in stock. Substitute parts are identified when equivalent electrical and mechanical specifications are required due to component availability, procurement optimization, or design flexibility within the same product family.

Substiute Parts

MCP48CMB08-20E/ST

Microchip TechnologyIn Stock: 1033MCP48CMB08-20E/ST Datasheet

Current PartRFQ

MCP48CVB08-20E/ST

Microchip TechnologyIn Stock: 1073MCP48CVB08-20E/ST Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MCP48CMB08-20E/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 identical:

• Resolution: 8-bit conversion capability
• Converter Count: 8 independent D/A converters
• Output Configuration: Voltage output with buffered architecture
• Interface Protocol: SPI digital interface
• Supply Voltage Range: 1.8V to 5.5V for both analog and digital supplies
• Accuracy Specifications: INL/DNL of ±0.1 LSB
• Settling Time: 16µs typical response time
• Package Format: 20-TSSOP surface mount package with 0.173" width (4.40mm)
• Temperature Range: -40°C to 125°C operating window
• Compliance Standards: ROHS3 compliance and REACH unaffected status

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

Parameter Comparison

Engineering Selection Recommendations

Both the MCP48CMB08-20E/ST and MCP48CVB08-20E/ST are active production components manufactured by Microchip Technology with identical electrical specifications and mechanical packaging. Selection between these parts is based on the following engineering considerations:

Compliance and Certification: Both parts maintain ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements for industrial and commercial applications.

Product Availability: The MCP48CMB08-20E/ST maintains higher current inventory at 1012 units compared to 993 units for the MCP48CVB08-20E/ST. Selection should consider procurement lead times and supply chain requirements.

Functional Equivalence: The parts are electrically and mechanically interchangeable across all specified parameters, including resolution, converter count, interface protocol, supply voltage range, accuracy specifications, and package format.

Thermal and Environmental Performance: Both components operate identically across the -40°C to 125°C temperature range with identical moisture sensitivity classification, ensuring equivalent performance in thermal cycling and humidity-controlled environments.

Frequently Asked Questions (FAQ)

Q: Can MCP48CVB08-20E/ST be used as a direct replacement for MCP48CMB08-20E/ST in existing designs?

A: Yes. Both parts are parametrically equivalent across all electrical and mechanical specifications. No circuit modifications or design changes are required for substitution.

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

A: No. Both parts implement identical SPI data interface protocols with the same timing and signal requirements.

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

A: Yes. Both the MCP48CMB08-20E/ST and MCP48CVB08-20E/ST operate with analog and digital supply voltages ranging from 1.8V to 5.5V.

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

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

Q: What is the significance of the ±0.1 LSB INL/DNL specification?

A: This specification indicates the integral nonlinearity and differential nonlinearity accuracy of the DAC conversion. Both parts maintain identical ±0.1 LSB performance, ensuring equivalent signal fidelity and conversion accuracy.

Q: Are moisture sensitivity requirements the same for both parts?

A: Yes. Both parts are classified as MSL 3 with 168-hour moisture sensitivity level, requiring identical storage and handling procedures.

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

A: Yes. Both parts maintain identical operating temperature specifications from -40°C to 125°C, supporting equivalent thermal performance in industrial and automotive environments.

Q: What is the typical settling time for both parts?

A: Both the MCP48CMB08-20E/ST and MCP48CVB08-20E/ST have a typical settling time of 16µs, ensuring identical response characteristics for time-sensitive applications.