MCP48CVB14-20E/ST

Digital To Analog Converters Overview

The MCP48CVB14-20E/ST is a quad-channel, 10-bit Digital-to-Analog Converter (DAC) featuring buffered voltage outputs and volatile memory. It operates within a supply voltage range of 2.7V to 5.5V for full specifications, or 1.8V to 2.7V with reduced analog performance. The device utilizes an SPI serial interface supporting write speeds up to 50 MHz and read speeds up to 25 MHz. Key electrical characteristics include a typical settling time of 4 µs, a maximum Integral Nonlinearity (INL) of ±0.25 LSb, and a gain error of ±0.6% of Full Scale Range (FSR). It offers selectable reference sources including VDD, external VREF, or an internal band gap, along with configurable output gains of 1x or 2x.

Digital To Analog Converters Feature Summary

• Quad-channel architecture providing four independent buffered voltage outputs in a single package.
• SPI-compatible serial interface enabling high-speed data transfer with support for standard '00' and '11' modes.
• Flexible reference voltage selection allowing operation from device supply, external pins, or an integrated internal band gap source.
• Configurable power-down modes that disconnect the output buffer or engage pull-down resistors to minimize current consumption.

Digital To Analog Converters Applications

• Set point or offset trimming in industrial control systems
• Sensor calibration circuits requiring precise voltage adjustment
• Low-power portable instrumentation devices
• Data acquisition systems needing multi-channel signal generation
• Motor control applications utilizing DAC-based feedback loops

Digital To Analog Converters Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and temperature grade. Ensure the selected variant matches the required channel count and resolution for the target design. Cross-reference the datasheet revision history to confirm compatibility with existing firmware interfaces. Confirm RoHS compliance status if environmental regulations apply to the final assembly process.

Digital To Analog Converters Selection Notes

Select this component when a quad-channel solution is required without nonvolatile storage needs. Compare the 10-bit resolution against higher precision alternatives if system accuracy demands exceed 1024 steps. Evaluate the SPI clock frequency requirements against the host microcontroller capabilities to ensure reliable communication at 50 MHz write speeds. Consider the internal band gap option if an external reference voltage source is unavailable or cost-prohibitive.

Digital To Analog Converters Part Context

This part belongs to the MCP48CXBX4/8 family of digital-to-analog converters manufactured by Microchip Technology. The family includes variants with 8-bit, 10-bit, and 12-bit resolutions, as well as octal configurations. The 'VB' designation specifically indicates volatile RAM memory, distinguishing it from the 'MB' series which features Multi-Time Programmable (MTP) nonvolatile memory. All members share similar pinouts and SPI command structures.

Digital To Analog Converters Replacement Considerations

Direct substitutes within the same family include MCP48CVB04-20E/ST for 8-bit resolution or MCP48CVB24-20E/ST for 12-bit resolution. For nonvolatile requirements, consider the MCP48CMB14-20E/ST. Verify that any replacement maintains the TSSOP-20 package dimensions and thermal pad configuration to ensure mechanical compatibility.