MCP48FVB04T-20E/ST Equivalent & Substitute Parts

Part Overview

The MCP48FVB04T-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 device integrates four independent D/A converters in a 20-TSSOP surface mount package and operates across a wide supply voltage range of 2.7V to 5.5V for both analog and digital domains. The part is currently in active production status with automotive-grade qualification (AEC-Q100) and ROHS3 compliance. Substitute parts are identified when equivalent electrical performance, package compatibility, and operational specifications align with the original component, enabling seamless integration in existing designs or addressing supply chain requirements.

Substiute Parts

MCP48FVB04T-20E/ST

Microchip TechnologyIn Stock: 1040MCP48FVB04T-20E/ST Datasheet

Current PartRFQ

MCP48FVB08T-20E/ST

Microchip TechnologyIn Stock: 3525MCP48FVB08T-20E/ST Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MCP48FVB04T-20E/ST are identified based on strict equivalence across the following critical parameters:

Electrical Specifications: Number of bits (8), number of D/A converters (4), settling time (7.8µs typical), output type (voltage unbuffered), data interface (SPI), reference type (external), supply voltage ranges (2.7V ~ 5.5V for both analog and digital), and linearity specifications (INL/DNL ±0.4LSB, ±0.05LSB).

Environmental & Operational Specifications: Operating temperature range (-40°C ~ 125°C), automotive grade classification, AEC-Q100 qualification, ROHS3 compliance, and moisture sensitivity level (MSL 3).

Physical Specifications: Package type (20-TSSOP), package dimensions (0.173", 4.40mm width), and surface mount mounting type.

Manufacturer Consistency: All substitute parts are sourced from Microchip Technology to ensure design continuity and support consistency.

The MCP48FVB08T-20E/ST qualifies as a parametric equivalent based on complete alignment across all specified electrical, environmental, operational, and physical parameters.

Parameter Comparison

Engineering Selection Recommendations

Both the MCP48FVB04T-20E/ST and MCP48FVB08T-20E/ST are active production components from Microchip Technology with identical electrical performance specifications, package configurations, and compliance certifications. Selection between these parts is determined by application-specific requirements and supply chain availability.

The MCP48FVB04T-20E/ST is suitable for applications requiring the specified 8-bit, 4-channel DAC architecture with SPI interface and external reference configuration. The MCP48FVB08T-20E/ST provides equivalent functionality and can be substituted without design modification when the electrical and physical parameters align with system requirements.

Both devices meet automotive-grade standards through AEC-Q100 qualification and maintain ROHS3 compliance, making them suitable for automotive and industrial applications operating across the -40°C to 125°C temperature range. The identical MSL rating (3, 168 hours) ensures equivalent moisture handling requirements during storage and assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the MCP48FVB08T-20E/ST be used as a direct replacement for the MCP48FVB04T-20E/ST?

A: Yes. The MCP48FVB08T-20E/ST is a parametric equivalent with identical electrical specifications, package type, mounting configuration, and compliance certifications. No design modifications are required for substitution.

Q: Are the package dimensions identical between these parts?

A: Yes. Both parts use the 20-TSSOP package with dimensions of 0.173" width and 4.40mm width. Pin configuration and footprint are identical, enabling direct PCB compatibility.

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

A: Yes. Both the MCP48FVB04T-20E/ST and MCP48FVB08T-20E/ST operate with analog and digital supply voltages of 2.7V to 5.5V, providing identical power supply flexibility.

Q: What is the significance of the AEC-Q100 qualification?

A: AEC-Q100 qualification indicates that both parts meet automotive-grade reliability standards established by the Automotive Electronics Council. This certification applies to both the MCP48FVB04T-20E/ST and MCP48FVB08T-20E/ST, confirming suitability for automotive applications.

Q: Are there differences in settling time between these parts?

A: No. Both parts exhibit identical settling time specifications of 7.8µs (typical), ensuring equivalent transient response characteristics in data acquisition circuits.

Q: What does MSL 3 (168 Hours) indicate?

A: Moisture Sensitivity Level 3 with a floor life of 168 hours specifies the maximum time these components can be exposed to ambient conditions (typically 30°C, 85% relative humidity) after moisture absorption before soldering. Both parts share this specification.

Q: Can these parts be used interchangeably in existing designs?

A: Yes. The MCP48FVB04T-20E/ST and MCP48FVB08T-20E/ST are fully interchangeable from electrical, mechanical, and compliance perspectives. No circuit modifications or firmware changes are required.

Q: Are both parts currently in active production?

A: Yes. Both the MCP48FVB04T-20E/ST and MCP48FVB08T-20E/ST maintain active product status with Microchip Technology, ensuring continued availability and support.