component
OPA2227UA
Public Unreviewedby Ray
Texas Instruments Precision OpAmps, SOIC-8. Datasheet-verified pinout, 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
markdownOPA2227UA
Texas Instruments · Precision OpAmps · SOIC-8
OPA2227UA from Texas Instruments, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | Out A | output | Amplifier A output. Class-AB output stage; +/-45mA typical short-circuit current, drives loads down to 600 ohm with V- +3.5V to V+ -3.5V swing. |
| 2 | -In A | input | Inverting input of amplifier A. Bipolar input with +/-2.5nA typical (10nA max) bias current, +/-2.5nA typical offset current. Common-mode range V- +2V to V+ -2V. |
| 3 | +In A | input | Non-inverting input of amplifier A. Same DC/AC specs as -In A; differential input impedance 10^7 ohm |
| 4 | V- | power_in | Negative supply rail. Operating range -2.5V to -18V referenced to V+ (total Vs = 5V to 36V). Quiescent current 3.7mA typ per amplifier. |
| 5 | +In B | input | Non-inverting input of amplifier B. Bipolar input, +/-2.5nA typ bias, common-mode range V- +2V to V+ -2V. |
| 6 | -In B | input | Inverting input of amplifier B. Same specs as +In B; 10^9 ohm |
| 7 | Out B | output | Amplifier B output. Class-AB output stage matched to Out A; channel separation 110 dB at 1kHz, 5k ohm load. |
| 8 | V+ | power_in | Positive supply rail. Operating range +2.5V to +18V referenced to V-. Absolute maximum supply voltage +/-18V; bypass with 0.1uF ceramic to V-. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Op-amp/Cmp |
| Pins | 8 |
Ordering variants
Same part, different packaging or reel option.
OPA2227UAUOPA2227UAOPA2227UAP
CAD (KiCad official)
- Symbol:
OPA2227UA - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (27 pp, sha256
9c1e133dfda319a3, retrieved 2026-08-17, tier: manufacturer) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).