# AD5621BKSZ-REEL7

**Analog Devices** · Digital To Analog Converters (DAC) · SOT-363-6

AD5621BKSZ-REEL7 from Analog Devices, in a SOT-363-6. 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 | SYNC | input | Level-triggered control input (active low) for frame synchronization signal; enables input shift register when taken low, and DAC updates following 16th clock cycle unless SYNC rises before this edge to interrupt the write sequence. |
| 2 | SCLK | input | Serial clock input for clocking data into the 16-bit input shift register on falling edge; maximum data transfer rate up to 30 MHz. |
| 3 | SDIN | input | Serial data input to 16-bit shift register; data clocked into the register on the falling edge of SCLK. |
| 4 | VDD | power_in | Power supply input operating from 2.7 V to 5.5 V; should be decoupled to GND with 10 μF and 0.1 μF capacitors. |
| 5 | GND | power_in | Ground reference point for all circuitry on the AD5601/AD5611/AD5621. |
| 6 | VOUT | output | Analog output voltage from the DAC with rail-to-rail operation providing output range from 0 V to VDD. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices |
| Package | SOT-363-6 |
| Category | Data Acquisition |
| Pins | 6 |

## CAD (KiCad official)

- Symbol: `AD5621BKSZ-REEL7`
- Footprint: `Package_TO_SOT_SMD:SOT-363_SC-70-6`
- 3D model: SOT-363-6 (KiCad packages3D, STEP)
- 3D model files: `ad5621bksz-reel7-etched.step` / `ad5621bksz-reel7-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ad5621bksz-reel7.step` / `ad5621bksz-reel7.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Analog Devices datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586202847440474112) (21 pp, sha256 `1f8185bd626f1e11`, retrieved 2026-09-22, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-4-6` (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/ad5621bksz-reel7-datasheet.pdf)