component
ADA4940-1ACPZ-R7
Public Made by Adomby adom
Analog Devices Differential Amplifiers, LFCSP-16(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
← Commit history
README.mdadded+54@@ -0,0 +1,54 @@+# ADA4940-1ACPZ-R7++**Analog Devices** · Differential Amplifiers · LFCSP-16(3x3)++ADA4940-1ACPZ-R7 from Analog Devices, in a LFCSP-16(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 | −FB | output | Negative feedback output terminal; connects to negative input summing node through feedback resistor network for gain setting. |+| 2 | +IN | input | Positive input summing node; unity-gain input terminal for differential signal or feedback current input. |+| 3 | −IN | input | Negative input summing node; unity-gain input terminal for differential signal or feedback current input. |+| 4 | +FB | output | Positive feedback output terminal; connects to positive input summing node through feedback resistor network for gain setting. |+| 5 | +VS | power_in | Positive power supply voltage; operational range 3 V to 7 V for LFCSP package. |+| 6 | +VS | power_in | Positive power supply voltage; operational range 3 V to 7 V for LFCSP package. |+| 7 | +VS | power_in | Positive power supply voltage; operational range 3 V to 7 V for LFCSP package. |+| 8 | +VS | power_in | Positive power supply voltage; operational range 3 V to 7 V for LFCSP package. |+| 9 | VOCM | input | Output common-mode voltage control input; sets DC common-mode level of differential outputs; input impedance approximately 250 kΩ. |+| 10 | +OUT | output | Positive output terminal for load connection; differential output swing −VS + 0.07 V to +VS − 0.07 V; output impedance <1 Ω at DC. |+| 11 | −OUT | output | Negative output terminal for load connection; differential output swing −VS + 0.07 V to +VS − 0.07 V; output impedance <1 Ω at DC. |+| 12 | DISABLE | input | Disable control input; disable amplifier at ≤(−VS + 1) V to reduce quiescent current to 13.5 μA; enable at ≥(−VS + 1.8) V. |+| 13 | −VS | power_in | Negative power supply voltage; ground reference or negative supply for amplifier operation. |+| 14 | −VS | power_in | Negative power supply voltage; ground reference or negative supply for amplifier operation. |+| 15 | −VS | power_in | Negative power supply voltage; ground reference or negative supply for amplifier operation. |+| 16 | −VS | power_in | Negative power supply voltage; ground reference or negative supply for amplifier operation. |+| 17 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Analog Devices |+| Package | LFCSP-16(3x3) |+| Category | Amplifiers/Comparators |+| Pins | 17 |++## CAD (KiCad official)++- Symbol: `ADA4940-1ACPZ-R7`+- Footprint: `Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm`+- 3D model: LFCSP-16(3x3) (KiCad packages3D, STEP)+- 3D model files: `ada4940-1acpz-r7-etched.step` / `ada4940-1acpz-r7-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ada4940-1acpz-r7.step` / `ada4940-1acpz-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/8588936745606402048) (32 pp, sha256 `2045220fbf3aa3cc`, retrieved 2026-09-22, tier: lcsc)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **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/ada4940-1acpz-r7-datasheet.pdf)
page.jsonadded+198@@ -0,0 +1,198 @@+{+ "slug": "ada4940-1acpz-r7",+ "version": "0.1.0",+ "type": "component",+ "description": "Analog Devices Differential Amplifiers, LFCSP-16(3x3). Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "amplifiers-comparators",+ "ada4940-1acpz-r7",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "ada4940-1acpz-r7.kicad_sym",+ "ada4940-1acpz-r7.kicad_mod",+ "ada4940-1acpz-r7.glb",+ "ada4940-1acpz-r7.step",+ "ada4940-1acpz-r7.lbr",+ "docs/hero.png",+ "docs/ada4940-1acpz-r7-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "ADA4940-1ACPZ-R7",+ "manufacturer": "Analog Devices",+ "package": "LFCSP-16(3x3)",+ "pin_count": 17,+ "category": "Amplifiers/Comparators",+ "subcategory": "Differential Amplifiers",+ "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588936745606402048",+ "parts": {+ "symbol": "ada4940-1acpz-r7.kicad_sym",+ "footprint": "ada4940-1acpz-r7.kicad_mod",+ "model_3d": "ada4940-1acpz-r7-etched.glb",+ "model_3d_plain": "ada4940-1acpz-r7.glb",+ "model_3d_step": "ada4940-1acpz-r7-etched.step",+ "model_3d_step_plain": "ada4940-1acpz-r7.step",+ "lbr": "ada4940-1acpz-r7.lbr"+ },+ "distributor_links": {+ "lcsc": "C468516"+ },+ "pins": [+ {+ "number": "1",+ "name": "−FB",+ "type": "output",+ "description": "Negative feedback output terminal; connects to negative input summing node through feedback resistor network for gain setting."+ },+ {+ "number": "2",+ "name": "+IN",+ "type": "input",+ "description": "Positive input summing node; unity-gain input terminal for differential signal or feedback current input."+ },+ {+ "number": "3",+ "name": "−IN",+ "type": "input",+ "description": "Negative input summing node; unity-gain input terminal for differential signal or feedback current input."+ },+ {+ "number": "4",+ "name": "+FB",+ "type": "output",+ "description": "Positive feedback output terminal; connects to positive input summing node through feedback resistor network for gain setting."+ },+ {+ "number": "5",+ "name": "+VS",+ "type": "power_in",+ "description": "Positive power supply voltage; operational range 3 V to 7 V for LFCSP package."+ },+ {+ "number": "6",+ "name": "+VS",+ "type": "power_in",+ "description": "Positive power supply voltage; operational range 3 V to 7 V for LFCSP package."+ },+ {+ "number": "7",+ "name": "+VS",+ "type": "power_in",+ "description": "Positive power supply voltage; operational range 3 V to 7 V for LFCSP package."+ },+ {+ "number": "8",+ "name": "+VS",+ "type": "power_in",+ "description": "Positive power supply voltage; operational range 3 V to 7 V for LFCSP package."+ },+ {+ "number": "9",+ "name": "VOCM",+ "type": "input",+ "description": "Output common-mode voltage control input; sets DC common-mode level of differential outputs; input impedance approximately 250 kΩ."+ },+ {+ "number": "10",+ "name": "+OUT",+ "type": "output",+ "description": "Positive output terminal for load connection; differential output swing −VS + 0.07 V to +VS − 0.07 V; output impedance <1 Ω at DC."+ },+ {+ "number": "11",+ "name": "−OUT",+ "type": "output",+ "description": "Negative output terminal for load connection; differential output swing −VS + 0.07 V to +VS − 0.07 V; output impedance <1 Ω at DC."+ },+ {+ "number": "12",+ "name": "DISABLE",+ "type": "input",+ "description": "Disable control input; disable amplifier at ≤(−VS + 1) V to reduce quiescent current to 13.5 μA; enable at ≥(−VS + 1.8) V."+ },+ {+ "number": "13",+ "name": "−VS",+ "type": "power_in",+ "description": "Negative power supply voltage; ground reference or negative supply for amplifier operation."+ },+ {+ "number": "14",+ "name": "−VS",+ "type": "power_in",+ "description": "Negative power supply voltage; ground reference or negative supply for amplifier operation."+ },+ {+ "number": "15",+ "name": "−VS",+ "type": "power_in",+ "description": "Negative power supply voltage; ground reference or negative supply for amplifier operation."+ },+ {+ "number": "16",+ "name": "−VS",+ "type": "power_in",+ "description": "Negative power supply voltage; ground reference or negative supply for amplifier operation."+ },+ {+ "number": "17",+ "name": "EP",+ "type": "passive",+ "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.2",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.2",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-4-6",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "extractor flagged: Exposed pad (EPAD) present but not numbered in pin count; datasheet specifies it should be connected",+ "exposed pad 17 added from the footprint"+ ],+ "pages_sent": 32,+ "cost_usd": 0.3435,+ "at": "2026-09-22T13:08:12"+ },+ "datasheet": {+ "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588936745606402048",+ "pages": 32,+ "sha256": "2045220fbf3aa3cc",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 17,+ "described": 17,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}