component
INA331AIDGKR
Public Made by Adomby adom
Texas Instruments Instrumentation Amplifiers, VSSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads on click. Unloads only if this page sits in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads on click. Unloads only if this page sits in the background.
PCB Footprint
Open full view ↗Loads on click. Unloads only if this page sits in the background.
Datasheet
Open in new tab ↗Loads on click. Unloads only if this page sits in the background.
README
markdownINA331AIDGKR
Texas Instruments · Instrumentation Amplifiers · VSSOP-8
INA331AIDGKR from Texas Instruments, in a VSSOP-8. 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 | RG | passive | External gain-setting resistor network connection where gain = 5 + 5(R2/R1). |
| 2 | VIN- | power_in | Negative differential input terminal protected against ±0.5V overshooting if current limited to 10mA. |
| 3 | VIN+ | power_in | Positive differential input terminal protected against ±0.5V overshooting if current limited to 10mA. |
| 4 | V- | power_in | Negative power supply rail and ground reference with maximum supply voltage 7.5V (V+ to V-). |
| 5 | REF | input | Reference voltage terminal setting output zero level; requires low-impedance source <160Ω and minimum 1.2V below V+. |
| 6 | VOUT | output | Rail-to-rail output voltage swinging within 25mV of supply rail for gains ≥10 with loads ≥10kΩ. |
| 7 | V+ | power_in | Positive power supply terminal for +2.7V to +5.5V operating range with 0.1µF bypass capacitor recommended. |
| 8 | Shutdown | input | Active-low shutdown control input pulling below 0.8V to enable low-power mode with quiescent current <1µA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | VSSOP-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
INA331AIDGKR - Footprint:
Package_SO:VSSOP-8_2.3x2mm_P0.5mm - 3D model: VSSOP-8 (KiCad packages3D, STEP)
- 3D model files:
ina331aidgkr-etched.step/ina331aidgkr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ina331aidgkr.step/ina331aidgkr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (24 pp, sha256
b563b3023a3cb8c8, retrieved 2026-10-06, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).