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INA166UA
Public Made by Adomby adom
Texas Instruments Instrumentation Amplifiers, SOIC-14. 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
markdownINA166UA
Texas Instruments · Instrumentation Amplifiers · SOIC-14
INA166UA from Texas Instruments, in a SOIC-14. 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 | VO1 | passive | Output of input amplifier A1 (internal node, connects through the internal 6kΩ resistor to the output stage). |
| 2 | NC | unconnected | No internal connection. |
| 3 | GS1 | passive | Gain-set terminal; an optional external RG between pin 3 and pin 12 increases gain above the internal G = 2000 per G = 2000 + 60000/RG. |
| 4 | VIN- | power_in | Inverting differential input; input is diode-clamped to the supply rails, limit current to 10mA if the signal swings more than 0.5V beyond the rails. |
| 5 | VIN+ | power_in | Non-inverting differential input; input is diode-clamped to the supply rails, limit current to 10mA if the signal swings more than 0.5V beyond the rails. |
| 6 | V- | power_in | Negative power supply, ±4.5V to ±18V supply range, bypass with 0.1µF tantalum capacitor near the pin. |
| 7 | NC | unconnected | No internal connection. |
| 8 | Sense | input | Output sense terminal; should be a low-impedance connection, as more than 5Ω in series degrades common-mode rejection. |
| 9 | VO | output | Amplifier output, swings to within about 2V of the rails into 2kΩ, with ±60mA continuous short-circuit current. |
| 10 | Ref | input | Output reference terminal, normally grounded; must be low-impedance (under 5Ω in series) and a voltage applied here is summed with the output for offset trim. |
| 11 | V+ | power_in | Positive power supply, ±4.5V to ±18V supply range, bypass with 0.1µF tantalum capacitor near the pin. |
| 12 | GS2 | passive | Gain-set terminal; an optional external RG between pin 3 and pin 12 increases gain above the internal G = 2000. |
| 13 | NC | unconnected | No internal connection. |
| 14 | VO2 | passive | Output of input amplifier A2 (internal node, connects through the internal 6kΩ resistor to the output stage). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-14 |
| Category | Amplifiers/Comparators |
| Pins | 14 |
CAD (KiCad official)
- Symbol:
INA166UA - Footprint:
Package_SO:SOIC-14_3.9x8.7mm_P1.27mm - 3D model: SOIC-14 (KiCad packages3D, STEP)
- 3D model files:
ina166ua-etched.step/ina166ua-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ina166ua.step/ina166ua.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (11 pp, sha256
bf43a623bfc9b26e, retrieved 2026-10-12, tier: lcsc) - 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).