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ADA4940-1ARZ-R7
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Analog Devices Differential Amplifiers, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+44@@ -0,0 +1,44 @@+# ADA4940-1ARZ-R7++**Analog Devices** · Differential Amplifiers · SOIC-8++ADA4940-1ARZ-R7 from Analog Devices, 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 | −IN | input | Negative input summing node; input common-mode voltage range −VS − 0.2 V to +VS − 1.2 V. |+| 2 | VOCM | input | Output common-mode voltage control input with 250 kΩ input impedance for setting output common-mode level. |+| 3 | +VS | power_in | Positive supply voltage; operating range 3 V to 6 V for SOIC package. |+| 4 | +OUT | output | Positive differential output for load connection; voltage swing −VS + 0.1 V to +VS − 0.1 V. |+| 5 | −OUT | output | Negative differential output for load connection; voltage swing −VS + 0.1 V to +VS − 0.1 V. |+| 6 | −VS | power_in | Negative supply voltage and ground connection. |+| 7 | DISABLE | input | Disable pin for low power mode control; ≥ (−VS + 1.8) V enables amplifier, ≤ (−VS + 1) V disables to 7 µA to 28.5 µA quiescent current. |+| 8 | +IN | input | Positive input summing node; input common-mode voltage range −VS − 0.2 V to +VS − 1.2 V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Analog Devices |+| Package | SOIC-8 |+| Category | Amplifiers/Comparators |+| Pins | 8 |++## CAD (KiCad official)++- Symbol: `ADA4940-1ARZ-R7`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOIC-8 (KiCad packages3D, STEP)+- 3D model files: `ada4940-1arz-r7-etched.step` / `ada4940-1arz-r7-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ada4940-1arz-r7.step` / `ada4940-1arz-r7.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Analog Devices datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588907141733867520) (30 pp, sha256 `6b693320b837e145`, retrieved 2026-09-21, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-4-6` (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).++[Datasheet PDF](docs/ada4940-1arz-r7-datasheet.pdf)
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