# DAC7614U

**Texas Instruments** · Digital To Analog Converters (DAC) · SOIC-16

DAC7614U from Texas Instruments, in a SOIC-16. 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 analog supply voltage, +5V nominal. |
| 2 | VOUTD | output | DAC D voltage output. |
| 3 | VOUTC | output | DAC C voltage output. |
| 4 | VREFL | input | Reference input voltage low, which sets the minimum output voltage for all DACs; VREFH must be at least 1.25V greater than VREFL. |
| 5 | VREFH | input | Reference input voltage high, which sets the maximum output voltage for all DACs. |
| 6 | VOUTB | output | DAC B voltage output. |
| 7 | VOUTA | output | DAC A voltage output. |
| 8 | VSS | power_in | Negative analog supply voltage, 0V or -5V nominal; it must be grounded or within -4.75V to -5.25V. |
| 9 | GND | power_in | Ground; all digital and analog return currents must flow through this pin. |
| 10 | SDI | input | Serial data input for the 16-bit serial word (2-bit DAC address plus 12-bit code, MSB first). |
| 11 | CLK | input | Serial data clock; it is OR-ed with CS to clock the serial shift register. |
| 12 | CS | input | Chip select input that enables serial communication when multiple serial devices share the bus. |
| 13 | NIC | unconnected | Not internally connected. |
| 14 | LOADDACS | input | The selected DAC register becomes transparent when LOADDACS is LOW and is latched when LOADDACS is HIGH. |
| 15 | RESET | input | Asynchronous reset input that sets all DAC registers to zero-scale (000H) or mid-scale (800H) when LOW, as selected by RESETSEL. |
| 16 | RESETSEL | input | Selects the reset code: when LOW, RESET sets all registers to 000H; when HIGH, RESET sets all registers to 800H. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-16 |
| Category | Data Acquisition |
| Pins | 16 |

## CAD (KiCad official)

- Symbol: `DAC7614U`
- Footprint: `Package_SO:SOIC-16_3.9x9.9mm_P1.27mm`
- 3D model: SOIC-16 (KiCad packages3D, STEP)
- 3D model files: `dac7614u-etched.step` / `dac7614u-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `dac7614u.step` / `dac7614u.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/dac7614) (18 pp, sha256 `3f418f4f82ba5362`, retrieved 2026-10-11, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-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/dac7614u-datasheet.pdf)