# MCP4728A0T-E

**Microchip Tech** · Digital To Analog Converters (DAC) · MSOP-10

MCP4728A0T-E from Microchip Tech, in a MSOP-10. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VDD | power_in | Positive supply pin, operating range 2.7V to 5.5V (absolute maximum 6.5V), also usable as the external reference (VREF = VDD). |
| 2 | SCL | input | I2C serial clock input supporting standard (100 kHz), fast (400 kHz) and high speed (up to 3.4 MHz) modes. |
| 3 | SDA | bidirectional | I2C serial data line used to program the DAC input codes, configuration bits and address bits. |
| 4 | LDAC | input | Active-low load DAC input that updates the output registers (UDAC) from the input registers. |
| 5 | RDY/BSY | output | Ready/busy status output of the device, shown on the block diagram next to the I2C interface logic. |
| 6 | VOUT A | output | Buffered 12-bit rail-to-rail analog voltage output of DAC channel A (output current limit ±25 mA absolute maximum). |
| 7 | VOUT B | output | Buffered 12-bit rail-to-rail analog voltage output of DAC channel B (output current limit ±25 mA absolute maximum). |
| 8 | VOUT C | output | Buffered 12-bit rail-to-rail analog voltage output of DAC channel C (output current limit ±25 mA absolute maximum). |
| 9 | VOUT D | output | Buffered 12-bit rail-to-rail analog voltage output of DAC channel D (output current limit ±25 mA absolute maximum). |
| 10 | VSS | power_in | Ground reference for the device (VSS = 0V). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | MSOP-10 |
| Category | Data Acquisition |
| Pins | 10 |

## CAD (KiCad official)

- Symbol: `MCP4728A0T-E`
- Footprint: `Package_SO:MSOP-10_3x3mm_P0.5mm`
- 3D model: MSOP-10 (KiCad packages3D, STEP)
- 3D model files: `mcp4728a0t-e-etched.step` / `mcp4728a0t-e-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mcp4728a0t-e.step` / `mcp4728a0t-e.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Microchip Tech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589040174348689408) (67 pp, sha256 `f005f6318d51018c`, retrieved 2026-10-19, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (vision), consensus `claude-opus-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/mcp4728a0t-e-datasheet.pdf)