component
THS3491IRGTT
Public Made by Adomby adom
Texas Instruments Operational Amplifier, VQFN-16-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownTHS3491IRGTT
Texas Instruments · Operational Amplifier · VQFN-16-EP(3x3)
THS3491IRGTT from Texas Instruments, in a VQFN-16-EP(3x3). 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 | FB | output | Input-side feedback pin of the current-feedback amplifier. |
| 2 | NC | unconnected | No internal connection; recommended to connect to a heat-spreading plane, typically GND. |
| 3 | VIN- | power_in | Inverting input. |
| 4 | VIN+ | power_in | Noninverting input. |
| 5 | GND | power_in | Ground and PD logic reference on the VQFN-16 (RGT) package; it must be connected to GND. |
| 6 | TJ_SENSE | output | Outputs a voltage proportional to die temperature; pin 5 should be tied to ground to keep this output ground-referenced. |
| 7 | -VS | power_in | Negative power supply. |
| 8 | -VS | power_in | Negative power supply. |
| 9 | NC | unconnected | No internal connection; recommended to connect to a heat-spreading plane, typically GND. |
| 10 | VOUT | output | Amplifier output. |
| 11 | VOUT | output | Amplifier output. |
| 12 | NC | unconnected | No internal connection; recommended to connect to a heat-spreading plane, typically GND. |
| 13 | +VS | power_in | Positive power supply. |
| 14 | +VS | power_in | Positive power supply. |
| 15 | NC | unconnected | No internal connection; recommended to connect to a heat-spreading plane, typically GND. |
| 16 | PD | input | Amplifier power-down: low disables the amplifier and high (default) enables it, with enable threshold REF + 1.5 V and disable threshold REF + 0.8 V. |
| 17 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | VQFN-16-EP(3x3) |
| Category | Amplifiers/Comparators |
| Pins | 17 |
CAD (KiCad official)
- Symbol:
THS3491IRGTT - Footprint:
Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm - 3D model: VQFN-16-EP(3x3) (KiCad packages3D, STEP)
- 3D model files:
ths3491irgtt-etched.step/ths3491irgtt-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ths3491irgtt.step/ths3491irgtt.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (56 pp, sha256
0efd0b60aa999c61, retrieved 2026-10-08, 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, primaryclaude-haiku-5-5(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).