MCP4728A0T-E/UN Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip MCP4728A0T-E/UN is a quad-channel 12-bit non-volatile DAC with an I2C interface, capable of outputting up to 5.5V from an internal or external voltage reference in a compact 10-pin MSOP package. On-chip EEPROM retains DAC codes after power loss without host intervention. Well-suited for calibration offsets, bias voltage generation, and programmable analog references.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- MCP4728A0T-E/UN Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.8200(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MCP4728A0T-E/UN?
- 4 independent 12-bit DAC channels with 4096 output levels per channel
- Non-volatile EEPROM stores output codes so DAC powers up to the last programmed value
- I2C serial interface with 100 kHz, 400 kHz, and 3.4 MHz High-Speed mode support
- Internal 2.048V bandgap reference or external VREF up to 5.5V selectable per channel
- 2.7V to 5.5V single-supply operation for 3.3V and 5V system compatibility
- 10-pin MSOP package with 3 mm × 3 mm body for tight analog PCB layouts
What is MCP4728A0T-E/UN used for?
The MCP4728A0T-E/UN is used in systems that require multiple independently controlled analog voltage outputs, such as multi-channel sensor calibration boards, programmable bias current sources, and industrial process control setpoints. Its non-volatile memory ensures the DAC outputs restore automatically after power cycling, making it ideal for set-and-forget applications like laser diode bias control and analog trim references in production-calibrated equipment. The I2C interface allows a single microcontroller to control all 4 channels with only 2 wires, minimizing GPIO usage.
What are the specifications of MCP4728A0T-E/UN?
| Pbfree Code | Yes |
| Manufacturer Package Code | MSOP-10 |
| Factory Lead Time | 4Weeks |
| YTEOL | 8 |
| Analog Output Voltage-Max | 5.5V |
| Converter Type | D/A CONVERTER |
| Input Bit Code | BINARY |
| Input Format | SERIAL |
| JESD-30 Code | S-PDSO-G10 |
| JESD-609 Code | e3 |
| Linearity Error-Max (EL) | 0.3174% |
| Number of Bits | 12 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP10,.19,20 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Settling Time-Nom (tstl) | 6 µs |
| Supply Current-Max | 1.4mA |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| ## MCP4728A0T-E/UN Alternates Showing results | Image |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Thailand |
Where can I find the MCP4728A0T-E/UN datasheet?
MCP4728A0T-E/UN Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP4728A0T-E/UN?
Compatible alternatives and drop-in replacements for MCP4728A0T-E/UN:
suggested
suggested
suggested
Frequently Asked Questions
How many output channels and what resolution does the MCP4728A0T-E/UN provide?
The MCP4728A0T-E/UN integrates 4 independent DAC channels each with 12-bit resolution, producing 4096 discrete output levels per channel. All 4 channels can be updated simultaneously using the I2C fast-write command, enabling synchronous multi-channel voltage changes in under 1 µs of settling time. This is useful in multi-axis calibration and multi-zone temperature control applications.
Does the MCP4728 retain its output settings after a power cycle?
Yes, the MCP4728 includes on-chip EEPROM that stores the last programmed DAC code for each of its 4 channels. On power-up the DAC automatically restores these stored output voltages without any host microcontroller initialization, making it reliable in standalone bias generators, power supply trims, and set-point reference circuits that must maintain their calibrated output immediately after power-on.
What voltage reference options does the MCP4728 support and how does the choice affect output range?
Each of the 4 channels on the MCP4728 can independently select between the internal 2.048V bandgap reference or an external VREF pin voltage, up to VDD (5.5V maximum). With the internal reference and a gain of 2x, the output range extends to 4.096V at 1 mV per LSB on 12 bits. Using an external precision reference gives tighter absolute accuracy for demanding instrumentation applications.
For a 4-channel laser bias trim board, what I2C speed can the MCP4728 handle and how many devices fit on one bus?
The MCP4728 supports I2C clock rates of 100 kHz (standard), 400 kHz (fast), and 3.4 MHz (high-speed), enabling fast channel updates in time-sensitive control loops. The I2C address has 3 programmable bits allowing up to 8 MCP4728 devices on a single 2-wire bus, providing 32 independently controlled 12-bit DAC channels from one I2C port—sufficient for multi-laser photonic module calibration boards.
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