# PGA113AIDGSR

**Texas Instruments** · Operational Amplifier · VSSOP-10-0.5mm

PGA113AIDGSR 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 | AVDD | power_in | Analog supply voltage input (2.2 V to 5.5 V) |
| 2 | CH1 | input | Input MUX channel 1 |
| 3 | VCAL/CH0 | input | Input MUX channel 0 and VCAL input; loaded with 100 kΩ typical when internal calibration channels CAL2 or CAL3 selected, otherwise high impedance |
| 4 | VREF | power_in | Reference input pin; must be connected to low-impedance reference capable of sourcing and sinking at least 2 mA or to GND |
| 5 | VOUT | output | Analog voltage output; clamped to AVDD + 300 mV when AVDD < DVDD |
| 6 | GND | power_in | Ground pin |
| 7 | SCLK | input | Clock input for SPI serial interface |
| 8 | DIO | bidirectional | Data input/output for SPI serial interface; contains weak 10-μA internal pulldown current source |
| 9 | CS | input | Chip select line for SPI serial interface |
| 10 | DVDD | power_in | Digital and op amp output stage supply voltage (2.2 V to 5.5 V); must be bypassed with 0.1-μF ceramic capacitor and supply current for digital portion and op amp output stage load |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | VSSOP-10-0.5mm |
| Category | Operational Amplifier/Comparator |
| Pins | 10 |

## CAD (KiCad official)

- Symbol: `PGA113AIDGSR`
- Footprint: `Package_SO:MSOP-10_3x3mm_P0.5mm`
- 3D model: VSSOP-10-0.5mm (KiCad packages3D, STEP)
- 3D model files: `pga113aidgsr-etched.step` / `pga113aidgsr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `pga113aidgsr.step` / `pga113aidgsr.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/pga112) (61 pp, sha256 `e9dc65d9f2eda88a`, retrieved 2026-10-03, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (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/pga113aidgsr-datasheet.pdf)