MCP4728A1T-E/UN Microchip Integrated Circuit (Small Outline Packages) In Stock
The MCP4728A1T-E/UN is a quad-channel 12-bit non-volatile DAC from Microchip with an I2C serial interface and 5.5 V maximum output voltage. It stores output codes in internal EEPROM so the last programmed values are retained at power-up. Available from stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- MCP4728A1T-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 MCP4728A1T-E/UN?
- Quad independent 12-bit DAC channels providing 4096 output steps per channel from a single 10-pin MSOP package
- Non-volatile EEPROM output register retains DAC codes through power cycles, eliminating MCU initialization time on startup
- I2C serial interface with programmable device address allows up to 8 MCP4728 devices on a single 2-wire bus
What is MCP4728A1T-E/UN used for?
The MCP4728A1T-E/UN is used in calibration reference generators, multi-axis servo bias networks, and precision analog test equipment where 4 independent 12-bit voltage outputs must be retained across power cycles without re-initialization. Its I2C interface allows a single microcontroller to configure all 4 channels and multiple devices on a shared 2-wire bus, simplifying wiring in multi-zone sensor systems and programmable gain amplifier networks. The non-volatile memory is especially valued in field-deployed instruments that must return to a known operating point after power interruptions.
What are the specifications of MCP4728A1T-E/UN?
| Pbfree Code | Yes |
| Manufacturer Package Code | MSOP-10 |
| Factory Lead Time | 20Weeks |
| 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 |
| ## MCP4728A1T-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 MCP4728A1T-E/UN datasheet?
MCP4728A1T-E/UN Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP4728A1T-E/UN?
Compatible alternatives and drop-in replacements for MCP4728A1T-E/UN:
Microchip Technology Inc Quad, 12-bit NV DAC with I2C interface
suggested
suggested
suggested
Frequently Asked Questions
How does the non-volatile EEPROM in MCP4728A1T-E/UN benefit battery-backed or power-cycling systems?
The internal EEPROM stores the last programmed 12-bit DAC codes for all 4 channels. When power is restored, each output immediately settles to its saved value within the startup time, eliminating the need for an MCU to write calibration data at boot. This is critical in field instruments and autonomous sensor nodes where boot-time latency must remain below a few milliseconds.
What resolution does MCP4728A1T-E/UN provide and how does 12-bit accuracy compare to 8-bit DAC alternatives?
MCP4728A1T-E/UN provides 12-bit resolution, giving 4096 discrete steps per channel. Compared to an 8-bit DAC with only 256 steps, this is a 16-times finer step size. For a 5 V full-scale range, each LSB equals approximately 1.22 mV, enabling precise voltage trim for analog biasing and calibration applications.
How many MCP4728A1T-E/UN devices can share a single I2C bus and what limits the maximum device count?
Each MCP4728A1T-E/UN has a 3-bit programmable I2C address, supporting up to 8 unique addresses on one 2-wire bus. The practical limit is 8 devices providing 32 independent 12-bit DAC channels total, constrained by address space rather than bus capacitance, since the MSOP package and low I2C pin capacitance keep total bus load well within 400 pF at standard 400 kHz fast-mode speeds.
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