# ADS7835EB

**Texas Instruments** · Analog To Digital Converters (ADCs) · VSSOP-8

ADS7835EB from Texas Instruments, in a VSSOP-8. 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 | VREF | power_out | Reference voltage output; internal 2.5V buffered reference drives the CDAC and can be bypassed with 0.1µF ceramic and 2.2µF tantalum capacitors. |
| 2 | AIN | input | Analog input accepting ±2.5V range (-VREF to +VREF) with internal 2.5V reference; input resistance during conversion (CONV=LOW) is 2kΩ. |
| 3 | GND | power_in | Ground (VSS) reference. |
| 4 | GND | power_in | Ground (VSS) reference. |
| 5 | CONV | input | Convert input controlling sample/hold mode transition, conversion initiation, serial data transfer start, data format selection (MSB-first or LSB-first), and power-down mode activation. |
| 6 | DATA | output | Serial data output transmitting 12-bit conversion result most significant bit first with each bit valid on rising edge of CLK; can transmit LSB-first by controlling CONV. |
| 7 | CLK | input | Clock input synchronizing serial data transfer and determining conversion speed; clock period minimum 125ns with minimum HIGH and LOW times of 50ns. |
| 8 | +VCC | power_in | Power supply (5V, range 4.75V to 5.25V); decouple with 0.1µF ceramic and 10µF tantalum capacitors. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | VSSOP-8 |
| Category | ADC/DAC/Data Conversion |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `ADS7835EB`
- Footprint: `Package_SO:VSSOP-8_2.3x2mm_P0.5mm`
- 3D model: VSSOP-8 (KiCad packages3D, STEP)
- 3D model files: `ads7835eb-etched.step` / `ads7835eb-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ads7835eb.step` / `ads7835eb.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/ads7835) (21 pp, sha256 `4faeaf2bcb49b372`, retrieved 2026-09-18, 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/ads7835eb-datasheet.pdf)