MCP47FEB21A1T-E/ST

Digital To Analog Converters Overview

The MCP47FEB21A1T-E/ST is a single-channel, 12-bit buffered voltage output Digital-to-Analog Converter (DAC) featuring nonvolatile EEPROM memory and an I²C serial interface. It operates within a supply voltage range of 1.8V to 5.5V, providing full specifications between 2.7V and 5.5V. The device supports Standard (100 kbps), Fast (400 kbps), and High-Speed (up to 3.4 Mbps) communication modes. Key electrical parameters include a typical settling time of 6 µs, rail-to-rail output capability, and low power consumption with normal operation drawing less than 180 µA. It utilizes an 8-lead TSSOP package and functions across an extended temperature range from -40°C to +125°C.

Digital To Analog Converters Feature Summary

• Integrates nonvolatile EEPROM for automatic recall of DAC register settings, device configuration, and Power-on Reset/Brown-out Reset states upon power cycling.
• Offers flexible voltage reference selection options including the internal band gap, external VREF pin, or device VDD supply.
• Supports configurable output gain settings of unity (1x) or double (2x) when utilizing the external VREF pin.
• Includes programmable power-down modes that disconnect the output buffer or select specific pull-down resistor values.

Digital To Analog Converters Applications

• Set point or offset trimming in precision circuits
• Sensor calibration systems
• Low-power portable instrumentation
• Data acquisition systems

Digital To Analog Converters Procurement Notes

Verify the specific ordering suffix 'A1T' against the manufacturer's official documentation to confirm tape-and-reel packaging and any distinct manufacturing lot codes. Ensure the component meets the required RoHS compliance standards for your assembly process. Cross-reference the datasheet revision date to confirm parameter validity before finalizing procurement specifications.

Digital To Analog Converters Selection Notes

Select this component when a single-channel 12-bit resolution is required alongside persistent data storage capabilities. The choice depends on the need for I²C connectivity with high-speed mode support up to 3.4 Mbps. Consider the 8-lead TSSOP package constraints and the extended industrial temperature range requirements for the target application environment.

Digital To Analog Converters Part Context

This part belongs to the MCP47FEBXX family of nonvolatile DACs manufactured by Microchip Technology. It shares architectural similarities with other variants in the series, such as the MCP47FEB1X (10-bit) and MCP47FEB0X (8-bit). The primary distinction lies in its 12-bit resolution offering 4096 steps, distinguishing it from lower-resolution counterparts while maintaining the same interface and memory features.

Digital To Analog Converters Replacement Considerations

Direct substitutes within the same family include the MCP47FEB21-E/ST for tube packaging or the MCP47FEB21A1-E/ST if reel variations differ. For applications requiring dual channels, the MCP47FEB22 series may be considered, though pinout adjustments are necessary. Verify pin compatibility and software register mapping before implementing any cross-model replacements.

Digital To Analog Converters FAQ

What are the available I²C communication speeds for this device?

The MCP47FEB21A1T-E/ST supports Standard Mode (100 kbps), Fast Mode (400 kbps), and High-Speed Mode (up to 3.4 Mbps).

How does the device handle data retention after power loss?

The integrated nonvolatile EEPROM automatically recalls saved DAC register settings, device configuration bits, and POR/BOR output settings upon power-up without requiring external intervention.

Can the output gain be adjusted?

Yes, the output buffer gain can be set to unity (1x) or double (2x). The 2x gain option is available specifically when using the external VREF pin as the voltage source.