# ADC0834CCWMX

**Texas Instruments** · Analog To Digital Converters (ADC) · SOIC-14-300mil

ADC0834CCWMX from Texas Instruments, in a SOIC-14-300mil. 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 | V+ | power_in | Shunt regulator zener input to GND (6.3 to 8.5V breakdown) connected to VCC via a diode; limit current into V+ to 15 mA max with a series resistor. |
| 2 | CS | input | Active-low chip select; must be held low for the entire conversion, and a high level clears all internal registers. |
| 3 | CH0 | input | Analog multiplexer input channel 0, single-ended or differential, range -0.3V to VCC+0.3V. |
| 4 | CH1 | input | Analog multiplexer input channel 1, single-ended or differential, range -0.3V to VCC+0.3V. |
| 5 | CH2 | input | Analog multiplexer input channel 2, single-ended or differential, range -0.3V to VCC+0.3V. |
| 6 | CH3 | input | Analog multiplexer input channel 3, single-ended or differential, range -0.3V to VCC+0.3V. |
| 7 | DGND | power_in | Digital ground. |
| 8 | AGND | power_in | Analog ground; the COM input is internally connected to AGND. |
| 9 | VREF | power_in | Voltage reference input defining the analog input span, typically 3.5 kOhm input resistance, maximum value limited to VCC. |
| 10 | DO | tri_state | Serial data output, TRI-STATE, shifts out conversion result MSB first then LSB first on CLK falling edges. |
| 11 | SARS | output | SAR status output, goes high while a conversion is in progress. |
| 12 | CLK | input | Clock input, 10 kHz to 400 kHz, 40% to 60% duty cycle. |
| 13 | DI | input | Serial data input that shifts the start bit and MUX address into the MUX address register on CLK rising edges. |
| 14 | VCC | power_in | Converter supply, 4.5 VDC to 6.3 VDC operating, 6.5V absolute maximum. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-14-300mil |
| Category | Data Acquisition |
| Pins | 14 |

## CAD (KiCad official)

- Symbol: `ADC0834CCWMX`
- Footprint: `Package_SO:SOIC-14_3.9x8.7mm_P1.27mm`
- 3D model: SOIC-14-300mil (KiCad packages3D, STEP)
- 3D model files: `adc0834ccwmx-etched.step` / `adc0834ccwmx-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `adc0834ccwmx.step` / `adc0834ccwmx.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/adc0838-n) (42 pp, sha256 `5304f87643a1c709`, retrieved 2026-10-08, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/adc0834ccwmx-datasheet.pdf)