# DAC8550IBDGKT

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

DAC8550IBDGKT from Texas Instruments, in a VSSOP-8-0.65mm. 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 | Power-supply input from 2.7 V to 5.5 V |
| 2 | VREF | power_in | Reference voltage input from 0 V to VDD to set the output voltage range |
| 3 | VFB | input | Feedback connection for the output amplifier |
| 4 | VOUT | output | Analog output voltage from DAC with rail-to-rail operation |
| 5 | SYNC | input | Level-triggered control input (active LOW) for frame synchronization with Schmitt-Trigger logic |
| 6 | SCLK | input | Serial clock input up to 30 MHz with Schmitt-Trigger logic |
| 7 | DIN | input | Serial data input clocked into 24-bit shift register on falling edges with Schmitt-Trigger logic |
| 8 | GND | power_in | Ground reference point for all circuitry |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | VSSOP-8-0.65mm |
| Category | ADC/DAC/Data Conversion |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `DAC8550IBDGKT`
- Footprint: `Package_SO:VSSOP-8_2.3x2mm_P0.5mm`
- 3D model: VSSOP-8-0.65mm (KiCad packages3D, STEP)
- 3D model files: `dac8550ibdgkt-etched.step` / `dac8550ibdgkt-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `dac8550ibdgkt.step` / `dac8550ibdgkt.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/dac8550) (33 pp, sha256 `4f163f5e0f6057cf`, retrieved 2026-10-07, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (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/dac8550ibdgkt-datasheet.pdf)