DAC8551

@@ -0,0 +1,52 @@+# DAC8551++**Texas Instruments** · 16-bit SPI DAC · MSOP-8++A single 16-bit digital-to-analog converter with an SPI interface, in MSOP-8, for generating a precise analog voltage from a microcontroller. Sixteen bits give 65536 steps, so it resolves fine setpoints and smooth waveforms far beyond an 8- or 12-bit DAC. The output is buffered and swings rail to rail against an external reference on VREF, with a feedback pin (VFB) for gain configuration. It draws little power and updates over a simple three-wire SPI (SYNC, SCLK, DIN). Use it for calibration voltages, programmable references, and low-frequency signal generation. Runs 2.7-5.5 V.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | VDD | power_in | Power supply input, 2.7 V to 5.5 V. Bypass to GND with a 100 nF ceramic capacitor close to the pin. |+| 2 | VREF | input | Reference voltage input. Sets the DAC output range from 0 V to VREF. Recommended range 0 V to VDD; reference input impedance 125 kOhm typical. |+| 3 | VFB | input | Feedback connection for the output amplifier. For voltage-output operation, tie externally to VOUT. |+| 4 | VOUT | output | Analog output voltage from the DAC. Rail-to-rail output amplifier; short-circuit current 50 mA (VDD=5 V), 20 mA (VDD=3 V). |+| 5 | SYNC | input | Active-LOW level-triggered frame synchronization input for the serial interface (SPI chip select). Enables the input shift register on the falling edge; DAC updates on the 24th SCLK. Schmitt-Trigger logic input. |+| 6 | SCLK | input | Serial clock input. Data can be transferred at rates up to 30 MHz (VDD>=3.6 V) or 20 MHz (VDD<3.6 V). Schmitt-Trigger logic input. |+| 7 | DIN | input | Serial data input (MOSI). Data is clocked into the 24-bit input shift register on each falling edge of SCLK. Schmitt-Trigger logic input. |+| 8 | GND | power_in | Ground reference point for all circuitry on the part. |++## Key specifications++| Parameter | Value |+|---|---|+| Type | Single DAC |+| Resolution | 16-bit (65536 steps) |+| Interface | SPI (up to 30 MHz) |+| Output | buffered, rail-to-rail |+| Reference | external (VREF + VFB) |+| Settling time | ~10 µs |+| Supply voltage | 2.7-5.5 V |+| Package | MSOP-8 (VSSOP-8) |++## Ordering variants++- `DAC8551IADGKT (MSOP-8)`+- `DAC8551IADGKR (MSOP-8, reel)`++## CAD (KiCad official)++- Symbol: `Analog_DAC:DAC8551IxDGK`+- Footprint: `Package_SO:MSOP-8_3x3mm_P0.65mm`+- 3D model: MSOP-8 (KiCad packages3D)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/dac8551.pdf) (31 pp, sha256 `56fcdb7afc6c2428`, retrieved 2026-08-17, tier: manufacturer)+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/dac8551-datasheet.pdf)

@@ -0,0 +1,36 @@+{+  "slug": "dac8551",+  "version": "0.1.0",+  "type": "component",+  "description": "TI single 16-bit SPI DAC, MSOP-8. Low power, buffered rail-to-rail output, external reference. Datasheet-verified.",+  "tags": [+    "component",+    "data-converter",+    "dac",+    "spi",+    "16-bit",+    "msop-8",+    "texas-instruments"+  ],+  "dependencies": {},+  "hero": {+    "type": "image",+    "path": "docs/hero.png"+  },+  "files": [+    "page.json",+    "README.md",+    "dac8551.kicad_sym",+    "dac8551.kicad_mod",+    "dac8551.glb",+    "docs/hero.png",+    "docs/dac8551-datasheet.pdf",+    "viewers/symbol.html",+    "viewers/footprint.html"+  ],+  "visibility": "public",+  "author": {+    "name": "Ray",+    "email": "[email protected]"+  }+}\ No newline at end of file