MCP4728
Every spec below is cited to the manufacturer datasheet. Compare the closest alternatives, then ask the assistant what it means for your design.
What the MCP4728 does
The MCP4728 is a quad, 12-bit voltage output digital-to-analog converter featuring on-board nonvolatile EEPROM memory for storing DAC codes and I2C address bits. It operates with a single supply voltage ranging from 2.7V to 5.5V, offering a typical settling time of 6µs and a maximum supply current of 1400µA when all four channels are active. The device supports both internal and external voltage reference selection, providing an output range of 0V to 2.048V or 0V to 4.096V depending on the gain setting. Engineers typically use this component for sensor calibration, closed-loop servo control, and programmable voltage sources in industrial process control and portable instrumentation applications where settings must persist through power cycles.
Datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| output current | — | 15 mA | 24 mA | VDD = 5V, All VOUTPins = Grounded.Tested at room temperature.; Analog Output (Output Amplifier) | Microchip datasheet, p. 5 — ELECTRICAL CHARACTERISTICS (CONTINUED) |
| supply voltage range | 2.7 V | — | 5.5 V | {dd}; Power Requirements | Microchip datasheet, p. 3 — ELECTRICAL CHARACTERISTICS |
| input offset voltage | — | 5 mV | 20 mV | Code = 000hSeeFigure 2-24; DC Accuracy | Microchip datasheet, p. 4 — ELECTRICAL CHARACTERISTICS (CONTINUED) |
| operating temperature | -40 °C | — | 125 °C | Temperature Ranges | Microchip datasheet, p. 10 — TEMPERATURE CHARACTERISTICS |
| slew rate | — | 0.55 V/µs | — | Analog Output (Output Amplifier) | Microchip datasheet, p. 5 — ELECTRICAL CHARACTERISTICS (CONTINUED) |
| psrr | — | -57 dB | — | VDD = 5V ±10%, VREF = Internal; Analog Output (Output Amplifier) | Microchip datasheet, p. 5 — ELECTRICAL CHARACTERISTICS (CONTINUED) |
| input voltage noise density | — | 1 µV/√Hz | — | Code = FFFh, 10 kHz, GX = 1; Internal Voltage Reference (VREF), (Note 3) | Microchip datasheet, p. 4 — ELECTRICAL CHARACTERISTICS (CONTINUED) |
| data retention | — | 200 year | — | At+25^\circ\text{C}, Note 3; EEPROM | Microchip datasheet, p. 6 — ELECTRICAL CHARACTERISTICS (CONTINUED) |
| output voltage low | — | — | 400 mV | IOL = 3\text{ mA}SDA and RDY/BSY pins; {ol}; Digital Interface | Microchip datasheet, p. 6 — ELECTRICAL CHARACTERISTICS (CONTINUED) |
| settling time | — | 6 µs | — | Note 8; Analog Output (Output Amplifier) | Microchip datasheet, p. 5 — ELECTRICAL CHARACTERISTICS (CONTINUED) |
| channel count | — | 4 | — | Microchip datasheet, p. 1 |
Closest matches to MCP4728
Frequently asked questions
What is the channel count of the MCP4728?
The channel count is 4.
What is the data retention time for the EEPROM?
The data retention is 200 year At+25^ ext{C}, Note 3; EEPROM.
What is the input offset voltage for the MCP4728 when Code = 000hSeeFigure 2-24; DC Accuracy?
The input offset voltage is 5 mV.
What is the input voltage noise density when Code = FFFh, 10 kHz, GX = 1, and using the Internal Voltage Reference (VREF) (Note 3)?
The input voltage noise density is 1 µV/√Hz.
What is the maximum operating temperature for the MCP4728 under the Temperature Ranges condition?
The operating temperature is 125 °C.
What is the output current when VDD = 5V, All VOUTPins = Grounded, and tested at room temperature?
The output current is 15 mA.
What is the maximum output voltage low (VOL) for the SDA and RDY/BSY pins when the output current (IOL) is 3 mA?
The output voltage low is 400 mV.
What is the PSRR for the Analog Output (Output Amplifier) when VDD = 5V ±10% and VREF = Internal?
The PSRR is -57 dB.
What is the settling time for the Analog Output (Output Amplifier) as specified in Note 8?
The settling time is 6 µs.
What is the slew rate of the Analog Output (Output Amplifier)?
The slew rate is 0.55 V/µs.
What is the maximum supply voltage for the MCP4728 under {dd} power requirements?
The maximum supply voltage is 5.5 V.