MCP48FEB14T-20E/ST

Digital To Analog Converters Overview

The MCP48FEB14T-20E/ST is an octal-channel, 10-bit Digital-to-Analog Converter (DAC) from Microchip Technology. It features buffered voltage outputs and nonvolatile EEPROM memory for DAC codes and configuration bits. The device operates on a single supply voltage ranging from 2.7V to 5.5V, with reduced specifications available between 1.8V and 2.7V. It utilizes an SPI interface supporting up to 20 MHz writes and 10 MHz reads. Key electrical parameters include a typical settling time of 7.8 µs, a maximum INL of ±1.5 LSB, and a maximum DNL of ±0.5 LSB. Power consumption is typically less than 3.2 mA in normal operation and 680 nA in power-down mode.

Digital To Analog Converters Feature Summary

• Octal output channel configuration with 10-bit resolution providing 1024 steps per channel.
• Nonvolatile EEPROM memory enabling auto-recall of saved DAC register settings and device configuration upon power-up or brown-out reset.
• WiperLock™ functionality utilizing high-voltage commands to prevent inadvertent changes to stored output values.
• Flexible voltage reference options including external VREF pin, internal band gap source, or device VDD.

Digital To Analog Converters Applications

• Set point or offset trimming in industrial systems
• Sensor calibration requiring multi-channel precision
• Low-power portable instrumentation
• Data acquisition systems

Digital To Analog Converters Procurement Notes

Verify the specific ordering suffix 'T' indicates tape-and-reel packaging rather than tube packaging when sourcing components. Confirm that the 'E' suffix denotes extended temperature range operation (-40°C to +125°C). Ensure compatibility with the required SPI interface modes and voltage levels before finalizing procurement orders.

Digital To Analog Converters Selection Notes

Select this component when multiple isolated analog outputs are required within a single package footprint. The EEPROM feature is critical for applications needing persistent calibration data without external storage. Consider the 10-bit resolution against system accuracy requirements and verify that the octal channel count matches the design topology to minimize board space.

Digital To Analog Converters Part Context

This part belongs to the MCP48FXBX4/8 family, which includes quad and octal variants with 8, 10, or 12-bit resolutions. The 'EB' designation specifically identifies the version equipped with EEPROM memory, distinguishing it from volatile RAM versions. The 'T' suffix differentiates the reel packaging from the standard tube packaging found in other SKUs within the same series.

Digital To Analog Converters Replacement Considerations

MCP48FEB14-20E/ST: Identical function but in tube packaging instead of tape-and-reel.

Digital To Analog Converters FAQ

What is the purpose of the WiperLock™ technology?

WiperLock™ prevents inadvertent changes to the output value by using a high voltage on a specific pin together with dedicated commands to lock the values stored in memory.

How does the device handle power-on resets?

The device includes Power-on/Brown-out Reset protection and can auto-recall saved DAC register settings and device configuration from its nonvolatile EEPROM memory upon power-up.

What are the supported SPI clock speeds?

The SPI interface supports write operations at up to 20 MHz and read operations at up to 10 MHz.