MCP48CVB14-20E/ST Equivalent & Substitute Parts

Part Overview

The MCP48CVB14-20E/ST is a 10-bit Digital to Analog Converter (DAC) manufactured by Microchip Technology, designed for data acquisition applications requiring multi-channel voltage output conversion. This device integrates four independent D/A converters in a 20-TSSOP surface mount package with buffered voltage outputs and SPI digital interface compatibility.

The part is classified as Active product status with full RoHS3 compliance and REACH unaffected designation. Substitute parts are identified based on identical electrical specifications, package configuration, and functional architecture to ensure direct interchangeability in existing circuit designs.

Substiute Parts

MCP48CVB14-20E/ST

Microchip TechnologyIn Stock: 799MCP48CVB14-20E/ST Datasheet

Current PartRFQ

MCP48CMB14-20E/ST

Microchip TechnologyIn Stock: 959MCP48CMB14-20E/ST Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MCP48CVB14-20E/ST is determined by strict equivalence across the following critical parameters:

Resolution and Channel Configuration: Both the main part and substitute must provide identical 10-bit resolution with exactly four independent D/A converters to maintain functional parity in multi-channel applications.

Output Characteristics: Buffered voltage output type is mandatory for direct substitution, ensuring consistent output impedance and drive capability without circuit modification.

Digital Interface: SPI protocol compatibility is required for seamless integration with existing microcontroller and FPGA interfaces.

Electrical Performance: Settling time of 16µs (typical), INL/DNL specifications of ±0.25 LSB, and R-2R architecture must be maintained to preserve signal fidelity and conversion accuracy.

Supply Voltage Range: Dual supply voltage specifications (1.8V ~ 5.5V for both analog and digital supplies) must be identical to ensure operation across the full intended power distribution range.

Package and Environmental Compliance: 20-TSSOP surface mount package, RoHS3 compliance, MSL 3 rating, and -40°C ~ 125°C operating temperature range must remain unchanged for PCB layout compatibility and regulatory adherence.

Parameter Comparison

Engineering Selection Recommendations

The MCP48CMB14-20E/ST is a direct parametric equivalent to the MCP48CVB14-20E/ST. Both devices are manufactured by Microchip Technology and maintain Active product status with identical electrical specifications, package configuration, and regulatory compliance certifications.

Selection between these parts is based on inventory availability and supply chain considerations. The MCP48CMB14-20E/ST currently maintains 881 pieces in stock compared to 776 pieces for the MCP48CVB14-20E/ST. Both parts carry RoHS3 compliance and REACH unaffected designation, ensuring regulatory adherence in all applicable markets.

No circuit modifications, firmware adjustments, or PCB layout changes are required when substituting between these devices. Pin configuration, electrical performance, and thermal characteristics remain identical across the full operating temperature range of -40°C to 125°C.

Frequently Asked Questions (FAQ)

Q: Can MCP48CMB14-20E/ST be used as a direct replacement for MCP48CVB14-20E/ST without circuit modification?

A: Yes. Both devices are parametrically identical across all electrical specifications, package dimensions, and functional characteristics. Direct pin-for-pin substitution is supported without any circuit redesign.

Q: Are the supply voltage requirements identical between these parts?

A: Yes. Both the MCP48CVB14-20E/ST and MCP48CMB14-20E/ST require identical analog and digital supply voltage ranges of 1.8V to 5.5V. Power distribution circuits require no modification.

Q: Do both parts support the same SPI communication protocol?

A: Yes. Both devices implement identical SPI digital interface specifications. Microcontroller firmware and communication timing parameters remain unchanged.

Q: What is the significance of the 20-TSSOP package specification?

A: The 20-TSSOP package defines the physical footprint, pin count, and pitch for PCB assembly. Both parts use identical 20-TSSOP packaging with 0.173-inch width and 4.40mm dimensions, ensuring compatibility with existing PCB layouts and reflow soldering processes.

Q: Are there any differences in settling time or conversion accuracy between these parts?

A: No. Both devices specify 16µs typical settling time and identical INL/DNL specifications of ±0.25 LSB. Conversion accuracy and speed are equivalent.

Q: What does RoHS3 compliance indicate for these parts?

A: RoHS3 compliance certifies that both devices meet Restriction of Hazardous Substances Directive requirements, restricting lead, cadmium, mercury, and other hazardous materials. This certification applies to both the MCP48CVB14-20E/ST and MCP48CMB14-20E/ST.

Q: Is the operating temperature range the same for both devices?

A: Yes. Both parts operate across the identical temperature range of -40°C to 125°C, supporting industrial and extended temperature applications without derating.

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

A: Moisture Sensitivity Level 3 specifies that both devices can be stored in standard conditions for up to 168 hours before reflow soldering without requiring baking procedures. This applies equally to both part numbers.