# DAC8551IADGKR

**Texas Instruments** · Digital To Analog Converters (DAC) · VSSOP-8-0.65mm

DAC8551IADGKR from Texas Instruments, in a VSSOP-8-0.65mm. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VDD | power_in | Power supply input, 2.7 V to 5.5 V. |
| 2 | VREF | power_in | Reference voltage input ranging from 0 V to VDD V with input impedance of 125 kΩ. |
| 3 | VFB | input | Feedback connection for the output amplifier; for voltage output operation, tie to VOUT externally. |
| 4 | VOUT | output | Analog output voltage from DAC with rail-to-rail operation and output range of 0 V to VREF V. |
| 5 | SYNC | input | Level-triggered control input (active LOW) for frame synchronization; enables input shift register when LOW with data transferred on falling clock edges, DAC updates on 24th clock edge. |
| 6 | SCLK | input | Serial clock input for data transfer at rates up to 30 MHz with Schmitt-Trigger logic input. |
| 7 | DIN | input | Serial data input clocked into 24-bit input shift register on falling edges of serial clock with Schmitt-Trigger logic input. |
| 8 | GND | power_in | Ground reference point for all circuitry on the part. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | VSSOP-8-0.65mm |
| Category | Data Acquisition |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `DAC8551IADGKR`
- Footprint: `Package_SO:VSSOP-8_2.3x2mm_P0.5mm`
- 3D model: VSSOP-8-0.65mm (KiCad packages3D, STEP)
- 3D model files: `dac8551iadgkr-etched.step` / `dac8551iadgkr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `dac8551iadgkr.step` / `dac8551iadgkr.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/dac8551) (31 pp, sha256 `56fcdb7afc6c2428`, retrieved 2026-09-23, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-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/dac8551iadgkr-datasheet.pdf)