component
DAC5311
Public Made by Adomby adom
TI 8-bit voltage-output DAC, SC70-6. SPI, supply as reference, tiny and low-power. Datasheet-verified.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownDAC5311
Texas Instruments · Digital-to-analog converter · SC70-6
Tiny 8-bit voltage-output DAC in a six-pin SC70, driven over a 3-wire SPI. It uses its own supply as the reference, so the full-scale output tracks AVDD and no external reference is needed, and it settles quickly at low power. The small size and simple interface make it a cheap way to add a programmable analog level, a bias, a setpoint, or a contrast voltage, next to the circuit it controls. The 8-bit member of the DAC5311/6311/7311 family.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | SYNC | input | Active-low level-triggered frame synchronization input for the serial interface. When SYNC goes low, the input shift register is enabled and data are clocked in on the falling edges of SCLK; the DAC is updated after the 16th clock cycle unless SYNC is taken high early, which aborts the write and asserts SYNC as an interrupt. |
| 2 | SCLK | input | Serial clock input. Data on DIN are transferred into the input shift register on the falling edge of SCLK at rates up to 50 MHz. Schmitt-triggered CMOS input. |
| 3 | DIN | input | Serial data input. Data are clocked into the 16-bit input shift register on the falling edge of SCLK. Compatible with SPI, QSPI, Microwire, and DSP interfaces. |
| 4 | AVDD/VREF | power_in | Combined analog supply and reference input, 2.0 V to 5.5 V. Sets the DAC full-scale output range (VOUT range is 0 V to AVDD). Bypass to GND with a low-ESR ceramic capacitor close to the pin. |
| 5 | GND | power_in | Ground reference for all analog and digital circuitry on the device. |
| 6 | VOUT | output | Analog voltage output from the 8-bit DAC. Rail-to-rail output buffer amplifier drives 0 V to AVDD; stable with capacitive loads up to 1000 pF (RL = 2 kΩ). DC output impedance is 0.5 Ω. |
Key specifications
| Parameter | Value |
|---|---|
| Type | Voltage-output DAC |
| Resolution | 8-bit |
| Interface | SPI (3-wire) |
| Reference | AVDD (supply) |
| Settling | Fast, low glitch |
| Supply | 2.7-5.5 V |
| Package | SC70-6 |
Ordering variants
Same part, different packaging or reel option.
DAC5311IDCKR (SC70-6)DAC6311IDCKR (10-bit)DAC7311IDCKR (12-bit)
CAD (KiCad official)
- Symbol:
Analog_DAC:DAC5311xDCK (KiCad official) - Footprint:
Package_TO_SOT_SMD:SOT-363_SC-70-6 - 3D model: SC70-6 (KiCad packages3D, STEP)
- 3D model files:
dac5311-etched.step/dac5311-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);dac5311.step/dac5311.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (40 pp, sha256
212625aa6189ace3, 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).