# DAC8831IDR

**Texas Instruments** · Digital To Analog Converters (DAC) · SOIC-14

DAC8831IDR from Texas Instruments, in a SOIC-14. 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 | RFB | passive | Feedback resistor. Connect to the output of external operational amplifier in bipolar mode. |
| 2 | VOUT | output | Analog output of DAC. |
| 3 | AGNDF | power_in | Analog ground (Force). |
| 4 | AGNDS | power_in | Analog ground (Sense). |
| 5 | VREF-S | power_in | Voltage reference input (Sense). Connect to external voltage reference. |
| 6 | VREF-F | power_in | Voltage reference input (Force). Connect to external voltage reference. |
| 7 | CS | input | Chip select input (active low). Data are not clocked into SDI unless CS is low. |
| 8 | SCLK | input | Serial clock input. |
| 9 | NC | unconnected | No internal connection. |
| 10 | SDI | input | Serial data input. Data are latched into input register on the rising edge of SCLK. |
| 11 | LDAC | input | Load DAC control input. Active low. When LDAC is Low, the DAC latch is simultaneously updated with the content of the input register. |
| 12 | DGND | power_in | Digital ground. |
| 13 | INV | passive | Junction point of internal scaling resistors. Connect to external operational amplifier inverting input in bipolar mode. |
| 14 | VDD | power_in | Analog power supply, +3 V to +5 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-14 |
| Category | Data Acquisition |
| Pins | 14 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Linearity error (ID grade) |  | -4 |  | 4 | LSB | DAC8831ID grade | 3 |
| Differential linearity error |  | -1 | 0.5 | 1 | LSB | All grades | 3 |
| Gain error |  | -5 | 1 | 5 | LSB | TA = +25°C | 3 |
| Gain error |  | -7 |  | 7 | LSB | TA = -40°C to +85°C | 3 |
| Zero code error |  | -1 | 0.25 | 1 | LSB | TA = +25°C | 3 |
| Zero code error |  | -2 |  | 2 | LSB | TA = -40°C to +85°C | 3 |
| Gain drift |  | -0.1 | 0.1 | 0.1 | ppm/°C |  | 3 |
| Zero code drift |  | -0.05 | 0.05 | 0.05 | ppm/°C |  | 3 |
| Bipolar zero error |  | -5 | 0.25 | 5 | LSB | DAC8831 only, TA = +25°C | 3 |
| Bipolar zero error |  | -7 |  | 7 | LSB | DAC8831 only, TA = -40°C to +85°C | 3 |
| Bipolar zero drift |  | -0.2 | 0.2 | 0.2 | ppm/°C | DAC8831 only | 3 |
| Power-supply rejection |  | -1 |  | 1 | LSB | VDD varies ±10% | 3 |
| Output impedance |  |  | 6.25 |  | kΩ |  | 3 |
| Settling time |  |  | 1 |  | μs | To 1/2 LSB of FS, CL = 10 pF | 3 |
| Slew rate |  |  | 25 |  | V/μs | CL = 10 pF | 3 |
| Digital-to-analog glitch |  |  | 35 |  | nV-s | 1 LSB change around major carry | 3 |
| Digital feedthrough |  |  | 0.2 |  | nV-s |  | 3 |
| Output noise |  |  | 18 |  | nV/√Hz | DAC8831, TA = +25°C | 3 |
| Ratio error |  | -0.0076 | 0.0015 | 0.0076 | % | Bipolar resistor RFB / RINV matching, DAC8831 only | 3 |
| Reference input voltage range |  | 1.25 |  |  | V | Upper limit is VDD | 4 |
| Reference input impedance |  |  | 9 |  | kΩ | Unipolar mode | 4 |
| Reference input impedance |  |  | 7.5 |  | kΩ | Bipolar mode, DAC8831 | 4 |
| Reference -3dB bandwidth | BW |  | 1.3 |  | MHz | Code = FFFFh | 4 |
| Reference feedthrough |  |  | 1 |  | mV | Code = 0000h, VREF = 1 VPP at 100 kHz | 4 |
| Signal-to-noise ratio | SNR |  | 92 |  | dB |  | 4 |
| Reference input capacitance |  |  | 75 |  | pF | Code = 0000h | 4 |
| Reference input capacitance |  |  | 120 |  | pF | Code = FFFFh | 4 |
| Input low voltage | VIL |  |  | 0.6 | V | VDD = 2.7 V | 4 |
| Input low voltage | VIL |  |  | 0.8 | V | VDD = 5 V | 4 |
| Input high voltage | VIH | 2.1 |  |  | V | VDD = 2.7 V | 4 |
| Input high voltage | VIH | 2.4 |  |  | V | VDD = 5 V | 4 |
| Input current |  | -1 |  | 1 | μA |  | 4 |
| Input capacitance |  |  | 10 |  | pF |  | 4 |
| Hysteresis voltage |  |  | 0.4 |  | V |  | 4 |
| Power-supply voltage | VDD | 2.7 |  | 5.5 | V |  | 4 |
| Power-supply current | IDD |  | 5 | 20 | μA | VDD = 3 V | 4 |
| Power |  |  | 15 | 60 | μW | VDD = 3 V | 4 |
| Power |  |  | 25 | 100 | μW | VDD = 5 V | 4 |
| Specified performance temperature range |  | -40 |  | 85 | °C |  | 4 |
| VDD to AGND |  | -0.3 |  | 7 | V |  | 2 |
| Digital input voltage to DGND |  | -0.3 |  |  | V | Upper limit is +VDD + 0.3 V | 2 |
| VOUT to AGND |  | -0.3 |  |  | V | Upper limit is +VDD + 0.3 V | 2 |
| AGND, AGNDF, AGNDS to DGND |  | -0.3 |  | 0.3 | V |  | 2 |
| Operating temperature range |  | -40 |  | 85 | °C |  | 2 |
| Storage temperature range |  | -65 |  | 150 | °C |  | 2 |
| Junction temperature range (TJ max) | TJ |  |  | 150 | °C |  | 2 |
| Thermal impedance SO-14 | θJA |  | 66.6 |  | °C/W | SO-14 package | 2 |
| SCLK period | tsck | 20 |  |  | ns | -40°C to +85°C | 7 |
| SCLK high or low time | twsck | 10 |  |  | ns | -40°C to +85°C | 7 |
| Data setup time (input) | tsu | 10 |  |  | ns | -40°C to +85°C | 7 |
| Data hold time (input) | tho | 0 |  |  | ns | -40°C to +85°C | 7 |
| LDAC width | tWLDAC | 30 |  |  | ns | -40°C to +85°C | 7 |
| Delay from CS high to LDAC low | tDLDAC | 30 |  |  | ns | -40°C to +85°C | 7 |
| VDD high to CS low (power-up delay) |  | 10 |  |  | μs | -40°C to +85°C | 7 |

## CAD (KiCad official)

- Symbol: `DAC8831IDR`
- Footprint: `Package_SO:SOIC-14_3.9x8.7mm_P1.27mm`
- 3D model: SOIC-14 (KiCad packages3D, STEP)
- 3D model files: `dac8831idr-etched.step` / `dac8831idr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `dac8831idr.step` / `dac8831idr.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/lit/ds/symlink/dac8831.pdf) (35 pp, sha256 `0d278957e743753a`, retrieved 2026-11-05, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (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/dac8831idr-datasheet.pdf)