MCP4706A3T-E/CH

Digital To Analog Converters Overview

The MCP4706A3T-E/CH is an 8-bit buffered voltage output Digital-to-Analog Converter (DAC) featuring nonvolatile EEPROM memory and a two-wire I2C serial interface. It operates on a single supply ranging from 2.7V to 5.5V with a typical power consumption of 210µA in normal mode. The device provides rail-to-rail output, supports Standard (100 kbps), Fast (400 kbps), and High-Speed (3.4 Mbps) I2C modes, and includes selectable gain options of 1x or 2x when using an external reference. It offers multiple power-down configurations for current reduction and is available in a compact SOT-23-6 package.

Digital To Analog Converters Feature Summary

• Integrated nonvolatile EEPROM retains DAC register settings and configuration bits across power cycles.
• Configurable power-down modes allow selection of VOUT pull-down resistors or high-impedance states.
• Supports external voltage reference input with selectable unity or 2x buffer gain.

Digital To Analog Converters Applications

• Set point or offset trimming
• Sensor calibration
• Low-power portable instrumentation

Digital To Analog Converters Procurement Notes

Verify the specific suffix 'A3' corresponds to the required I2C address configuration before ordering. Confirm that the SOT-23-6 package meets the physical constraints of the target PCB layout. Ensure the system design accommodates the specified operating temperature range and voltage levels.

Digital To Analog Converters Selection Notes

Select this component when an 8-bit resolution is sufficient for the application requirements. Consider the MCP4716 or MCP4726 if higher precision is needed. Verify that the I2C bus speed requirements align with the supported Standard, Fast, or High-Speed modes.

Digital To Analog Converters Part Context

This part belongs to the MCP47X6 family of single-channel DACs manufactured by Microchip Technology. The series includes 8-bit (MCP4706), 10-bit (MCP4716), and 12-bit (MCP4726) variants sharing similar pinouts and functional characteristics.

Digital To Analog Converters Replacement Considerations

Direct substitutes within the same family include MCP4706A0T-E/CH and MCP4706A1T-E/CH, which differ primarily in their default I2C slave addresses.

Digital To Analog Converters FAQ

What is the maximum settling time for the MCP4706?

The typical settling time is 6 µs, measured within 1/2 LSB of the final value when changing codes from 1/4 to 3/4 of full scale.

How does the device handle data retention during power loss?

The integrated EEPROM automatically saves the DAC register value and configuration bits. Upon power-up reset, these values are latched into the volatile memory.

Can the output buffer gain be adjusted?

Yes, when an external voltage reference is used on the VREF pin, the output buffer gain can be selected as either 1x or 2x.