MCP47A1T-A1E/LT

Digital To Analog Converters Overview

The MCP47A1T-A1E/LT is a volatile, single-channel 6-bit digital-to-analog converter (DAC) manufactured by Microchip Technology. It features a buffered output and operates via an I2C serial interface with SMBus 2.0 support. The device provides 65 taps across 64 resistors, covering a voltage range from VSS to VREF. It supports two I2C slave addresses: 5Ch and 7Ch. Operating on a single supply voltage between 1.8V and 5.5V, it draws typical static current of 90 µA. The component includes brown-out reset protection and defaults to mid-scale upon power-up. It is housed in a compact SC70-6 package and functions within an extended temperature range of -40°C to +125°C.

Digital To Analog Converters Feature Summary

• Integrated buffered output stage for direct signal driving
• I2C/SMBus compatible serial control interface
• Brown-out reset protection with mid-scale power-on default
• Low-power operation suitable for battery-driven systems

Digital To Analog Converters Applications

• Set point or offset trimming in electronic circuits
• Cost-sensitive mechanical trim potentiometer replacement
• Calibration of sensor signals or thresholds

Digital To Analog Converters Procurement Notes

Verify the specific ordering suffix 'A1' against official documentation to confirm the programmed I2C slave address configuration before procurement. Ensure the design accounts for the volatile nature of the wiper register, as data is lost during power cycles. Confirm that the SC70-6 package dimensions align with the target PCB footprint requirements.

Digital To Analog Converters Selection Notes

Select this component when a low-cost, single-channel DAC with minimal external components is required. It is appropriate for applications where non-volatile storage is unnecessary and system complexity must be minimized. Verify that the 6-bit resolution meets the precision requirements of the analog signal path.

Digital To Analog Converters Part Context

This part belongs to the MCP47A1 family of 6-bit volatile DACs. It shares architectural similarities with other Microchip DACs but is distinguished by its specific 6-bit resolution, SC70-6 packaging, and fixed I2C addressing options. It serves as a simplified alternative to higher-resolution models like the MCP4725 series.

Digital To Analog Converters Replacement Considerations

Direct replacements include other MCP47A1 variants with different suffixes indicating package or address variations. Cross-family substitution requires verifying pin compatibility and ensuring the replacement device supports the same I2C protocol and voltage levels.