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LF444CMX
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Texas Instruments FET InputAmplifiers, SOIC-14. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+57@@ -0,0 +1,57 @@+# LF444CMX++**Texas Instruments** · FET InputAmplifiers · SOIC-14++LF444CMX from Texas Instruments, in a SOIC-14. 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 | OUT1 | output | Amplifier 1 output. |+| 2 | IN1- | input | Amplifier 1 inverting input (JFET gate, ~10^12 Ω, 50 pA max bias). |+| 3 | IN1+ | input | Amplifier 1 non-inverting input (JFET gate, ~10^12 Ω, 50 pA max bias). |+| 4 | V+ | power_in | Positive supply rail (VCC). Absolute max ±18 V (LF444) / ±22 V (LF444A). Typical operation ±15 V. Supply current ~0.6 mA (all four amps). |+| 5 | IN2+ | input | Amplifier 2 non-inverting input. |+| 6 | IN2- | input | Amplifier 2 inverting input. |+| 7 | OUT2 | output | Amplifier 2 output. |+| 8 | OUT3 | output | Amplifier 3 output. |+| 9 | IN3+ | input | Amplifier 3 non-inverting input. |+| 10 | IN3- | input | Amplifier 3 inverting input. |+| 11 | V- | power_in | Negative supply rail (VEE). Absolute max ±18 V (LF444) / ±22 V (LF444A). Tie to GND for single-supply operation. |+| 12 | IN4+ | input | Amplifier 4 non-inverting input. |+| 13 | IN4- | input | Amplifier 4 inverting input. |+| 14 | OUT4 | output | Amplifier 4 output. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-14 |+| Category | Op-amp/Cmp |+| Pins | 14 |++## Ordering variants++Same part, different packaging or reel option.++- `LF444CMX`+- `LF444CMXCN`+- `LF444CMXMJ`++## CAD (KiCad official)++- Symbol: `LF444CMX`+- Footprint: `Package_SO:SOIC-14_3.9x8.7mm_P1.27mm`+- 3D model: SOIC-14 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/lf444cmx.pdf) (18 pp, sha256 `8be6c106cdaeeaf9`, 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).++[Datasheet PDF](docs/lf444cmx-datasheet.pdf)
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