ADS8861IDGS

Texas Instruments · Analog To Digital Converters (ADCs) · VSSOP-10-0.5mm

ADS8861IDGS from Texas Instruments, in a VSSOP-10-0.5mm. 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	REF	input	Positive reference input; the pin must be decoupled with a 10-µF or larger capacitor, and REF to GND is rated -0.3 V to 5.7 V (absolute maximum).
2	AVDD	power_in	Analog power supply, specified at 2.7 V to 3.6 V and decoupled to GND with a 1-µF capacitor; AVDD to GND absolute maximum is -0.3 V to 4 V.
3	AINP	input	Noninverting analog signal input; AINP to GND must stay within -0.3 V and REF + 0.3 V (absolute maximum).
4	AINN	input	Inverting analog signal input; AINN to GND must stay within -0.3 V and REF + 0.3 V (absolute maximum).
5	GND	power_in	Device ground, common to the analog supply (AVDD) and digital/digital I/O supply (DVDD), with the reference return also internally connected to this pin.
6	CONVST	input	Convert input that starts the conversion; it also functions as the CS input in 3-wire interface mode.
7	DOUT	output	Serial data output; digital output to GND is limited to -0.3 V to DVDD + 0.3 V (absolute maximum).
8	SCLK	input	Clock input for the serial interface; data on DOUT is synchronized with this clock.
9	DIN	input	Serial data input whose level at the start of a conversion selects the operating mode (such as daisy-chain mode); it also serves as the CS input in 4-wire interface mode.
10	DVDD	power_in	Digital interface power supply, specified at 2.7 V to 3.6 V (independent of AVDD) and decoupled to GND with a 1-µF capacitor.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	VSSOP-10-0.5mm
Category	ADC/DAC/Data Conversion
Pins	10

CAD (KiCad official)

Symbol: ADS8861IDGS
Footprint: Package_SO:MSOP-10_3x3mm_P0.5mm
3D model: VSSOP-10-0.5mm (KiCad packages3D, STEP)
3D model files: ads8861idgs-etched.step / ads8861idgs-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ads8861idgs.step / ads8861idgs.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: Texas Instruments datasheet (53 pp, sha256 97dc35dc120fadb2, retrieved 2026-10-10, tier: lcsc)
Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
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

# ADS8861IDGS

**Texas Instruments** · Analog To Digital Converters (ADCs) · VSSOP-10-0.5mm

ADS8861IDGS from Texas Instruments, in a VSSOP-10-0.5mm. 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 | REF | input | Positive reference input; the pin must be decoupled with a 10-µF or larger capacitor, and REF to GND is rated -0.3 V to 5.7 V (absolute maximum). |
| 2 | AVDD | power_in | Analog power supply, specified at 2.7 V to 3.6 V and decoupled to GND with a 1-µF capacitor; AVDD to GND absolute maximum is -0.3 V to 4 V. |
| 3 | AINP | input | Noninverting analog signal input; AINP to GND must stay within -0.3 V and REF + 0.3 V (absolute maximum). |
| 4 | AINN | input | Inverting analog signal input; AINN to GND must stay within -0.3 V and REF + 0.3 V (absolute maximum). |
| 5 | GND | power_in | Device ground, common to the analog supply (AVDD) and digital/digital I/O supply (DVDD), with the reference return also internally connected to this pin. |
| 6 | CONVST | input | Convert input that starts the conversion; it also functions as the CS input in 3-wire interface mode. |
| 7 | DOUT | output | Serial data output; digital output to GND is limited to -0.3 V to DVDD + 0.3 V (absolute maximum). |
| 8 | SCLK | input | Clock input for the serial interface; data on DOUT is synchronized with this clock. |
| 9 | DIN | input | Serial data input whose level at the start of a conversion selects the operating mode (such as daisy-chain mode); it also serves as the CS input in 4-wire interface mode. |
| 10 | DVDD | power_in | Digital interface power supply, specified at 2.7 V to 3.6 V (independent of AVDD) and decoupled to GND with a 1-µF capacitor. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | VSSOP-10-0.5mm |
| Category | ADC/DAC/Data Conversion |
| Pins | 10 |

## CAD (KiCad official)

- Symbol: `ADS8861IDGS`
- Footprint: `Package_SO:MSOP-10_3x3mm_P0.5mm`
- 3D model: VSSOP-10-0.5mm (KiCad packages3D, STEP)
- 3D model files: `ads8861idgs-etched.step` / `ads8861idgs-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ads8861idgs.step` / `ads8861idgs.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/ads8861) (53 pp, sha256 `97dc35dc120fadb2`, retrieved 2026-10-10, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **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/ads8861idgs-datasheet.pdf)