LM224QT

@@ -0,0 +1,61 @@+# LM224QT++**STMicroelectronics** · Operational Amplifier · TQFN-16-EP(3x3)++LM224QT from STMicroelectronics, in a TQFN-16-EP(3x3). 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 | IN1+ | input | Non-inverting input of op-amp 1. Common-mode input voltage range extends from ground (VCC-) up to VCC+ − 1.5 V at 25 °C. |+| 2 | VCC+ | power_in | Positive supply rail. Single supply: 3 V to 30 V referenced to VCC-; dual supply: +1.5 V to +15 V referenced to ground. Absolute maximum supply is ±16 V or 32 V total. |+| 3 | NC | unconnected | No internal connection. Leave floating or tie to a static net. |+| 4 | IN2+ | input | Non-inverting input of op-amp 2. Input bias current typ. 20 nA, input offset current typ. 2 nA. |+| 5 | IN2- | input | Inverting input of op-amp 2. Input offset voltage 5 mV max (LM224). |+| 6 | OUT2 | output | Output of op-amp 2. Internally frequency-compensated; output short-circuit current typ. 40 mA; output short-circuit to ground is safe indefinitely for VCC ≤ 15 V. |+| 7 | OUT3 | output | Output of op-amp 3. Internally frequency-compensated; large voltage gain typ. 100 dB. |+| 8 | IN3- | input | Inverting input of op-amp 3. |+| 9 | IN3+ | input | Non-inverting input of op-amp 3. Common-mode input voltage range 0 V to VCC-1.5 V @ 25 °C. |+| 10 | NC | unconnected | No internal connection. Leave floating or tie to a static net. |+| 11 | VCC- | power_in | Negative supply / ground. In single-supply operation this pin is tied to system ground; in split-supply operation it is the negative rail (down to -15 V). Absolute maximum ±16 V. |+| 12 | IN4+ | input | Non-inverting input of op-amp 4. |+| 13 | IN4- | input | Inverting input of op-amp 4. |+| 14 | OUT4 | output | Output of op-amp 4. Internally frequency-compensated; output short-circuit protected. |+| 15 | OUT1 | output | Output of op-amp 1. Internally frequency-compensated. |+| 16 | IN1- | input | Inverting input of op-amp 1. |+| 17 | EP | passive | Exposed thermal pad on package underside. Per Figure 1 note 1, may be connected to VCC- or left floating. Connecting to VCC- improves thermal performance (QFN16 3x3 Rth(j-a) = 45 °C/W). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | TQFN-16-EP(3x3) |+| Category | Op-amp/Cmp |+| Pins | 17 |++## Ordering variants++- `LM224QT`+- `LM224QTLM224DT`+- `LM224QTLM224ADT`+- `LM224QTLM224WDT`+- `LM224QTLM224PT`+- `LM224QTLM224APT`++## CAD (KiCad official)++- Symbol: `LM224QT`+- Footprint: `Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm`+- 3D model: TQFN-16-EP(3x3) (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [STMicroelectronics datasheet](https://www.st.com/resource/en/datasheet/lm224qt.pdf) (22 pp, sha256 `c1aa97669d6ca9c8`, 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/lm224qt-datasheet.pdf)

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