LMH6643MAX

@@ -0,0 +1,50 @@+# LMH6643MAX++**Texas Instruments** · Operational Amplifier · SOIC-8++LMH6643MAX 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 | Channel A op-amp output. Rail-to-rail output stage swings to within ~40 mV of either supply rail, sources/sinks up to ~75 mA linearly (short-circuit current +115 mA to +145 mA). |+| 2 | -IN A | input | Channel A inverting input. High-impedance voltage-feedback input; input voltage must remain within V- - 0.8 V to V+ + 0.8 V (absolute max). |+| 3 | +IN A | input | Channel A non-inverting input. Input common-mode range extends 0.5 V below V- and to within 1 V of V+. |+| 4 | V- | power_in | Negative supply rail. Total supply (V+ - V-) 2.7 V to 12.8 V recommended (13.5 V absolute max). Tie to GND for single-supply operation. |+| 5 | +IN B | input | Channel B non-inverting input. Input common-mode range extends 0.5 V below V- and to within 1 V of V+. |+| 6 | -IN B | input | Channel B inverting input. High-impedance voltage-feedback input; input voltage must remain within V- - 0.8 V to V+ + 0.8 V (absolute max). |+| 7 | OUT B | output | Channel B op-amp output. Rail-to-rail output stage swings to within ~40 mV of either supply rail, sources/sinks up to ~75 mA linearly. |+| 8 | V+ | power_in | Positive supply rail. Total supply (V+ - V-) 2.7 V to 12.8 V recommended (13.5 V absolute max). Bypass with local 0.1 uF ceramic to V-. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-8 |+| Category | Op-amp/Cmp |+| Pins | 8 |++## Ordering variants++- `LMH6643MAXMA`+- `LMH6643MAXMAX`+- `LMH6643MAXMM`+- `LMH6643MAXMME`++## CAD (KiCad official)++- Symbol: `LMH6643MAX`+- 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](https://www.ti.com/lit/ds/symlink/lmh6643max.pdf) (38 pp, sha256 `80237cedc72b63d0`, 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/lmh6643max-datasheet.pdf)

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