MCP4728-E/UN

MCP4728-E/UN is the 10-lead MSOP ordering code for the Microchip Technology MCP4728 four-channel 12-bit DAC, decoded in the datasheet package marking information: the /UN suffix is the 10-lead MSOP body and the E is the -40 °C to +125 °C extended temperature range. Microchip lists the device in production, with 2026 process-change notices still adding assembly capacity for this family. Each channel carries nonvolatile memory for its output setting, the I2C interface runs at up to 3.4 Mbps with address bits programmable into EEPROM, INL is ±2 LSB typical and ±13 LSB maximum, output settling time is 6 µs typical, supply current is 800 µA typical and 1,400 µA maximum unloaded, and the internal 2.048 V reference gives a 0 V to 2.048 V output range at gain 1 or 0 V to 4.096 V at gain 2, from a 2.7 V to 5.5 V supply. The selection point is four DAC channels that power up at a stored code: setpoints, bias and trim voltages that must be correct before the host firmware runs. Selection advice: write the EEPROM defaults as the last production step and verify them after a power cycle - a channel that wakes at the wrong code is the most common bring-up failure with this class of part. Parameters verified against the Microchip MCP4728 datasheet DS22187E (package marking information and electrical characteristics).