OPA1656 Dual Audio Op-Amp

@@ -0,0 +1,51 @@+# OPA1656++**Texas Instruments** · Operational Amplifier · SOIC-8++The OPA1656 is a dual audio operational amplifier that combines the low noise of bipolar-input parts (2.9 nV/sqrt(Hz)) with the high input impedance of CMOS. Its low distortion, wide bandwidth, and ability to drive low-impedance loads suit high-fidelity preamplifiers, active filters, and headphone drivers.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | OUT A | output | Output, channel A. Rail-to-rail output capable of sourcing/sinking 100 mA and swinging to within 250 mV of the rails with a 2-kΩ load. |+| 2 | -IN A | input | Inverting input, channel A. High-impedance FET input (100 MΩ differential || 9.1 pF), input bias current typically ±10 pA. |+| 3 | +IN A | input | Noninverting input, channel A. High-impedance FET input; common-mode range (V-) to (V+) - 2.25 V. |+| 4 | V- | power_in | Negative (lowest) power supply. Dual-supply range ±2.25 V to ±18 V or single-supply 4.5 V to 36 V referenced with V+. |+| 5 | +IN B | input | Noninverting input, channel B. High-impedance FET input; common-mode range (V-) to (V+) - 2.25 V. |+| 6 | -IN B | input | Inverting input, channel B. High-impedance FET input, input bias current typically ±10 pA. |+| 7 | OUT B | output | Output, channel B. Rail-to-rail output capable of 100 mA drive; swings to within 250 mV of the rails into a 2-kΩ load. |+| 8 | V+ | power_in | Positive (highest) power supply. Supply range 4.5 V to 36 V single-supply or ±2.25 V to ±18 V dual-supply. Quiescent current 3.9 mA per channel. |++## Key specifications++| Parameter | Value |+|---|---|+| Type | Dual CMOS audio op-amp |+| Input noise voltage | 2.9 nV/sqrt(Hz) |+| THD+N | 0.00005% typ |+| Gain-bandwidth product | 53 MHz typ |+| Slew rate | 24 V/us typ |+| Supply voltage | +-2.25 V to +-18 V |+| Operating temperature | -40 C to 125 C |++## Ordering variants++- `OPA1656D`+- `OPA1656DR`++## CAD (KiCad official)++- Symbol: `opa1656.kicad_sym`+- Footprint: `opa1656.kicad_mod`+- 3D model: SOIC-8 body from KiCad `Package_SO/SOIC-8_3.9x4.9mm_P1.27mm`.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/opa1656.pdf) (42 pp, sha256 `4243b58e553e6f27`, 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/opa1656-datasheet.pdf)

@@ -0,0 +1,37 @@+{+  "slug": "opa1656",+  "version": "0.1.0",+  "type": "component",+  "description": "Dual low-noise, low-distortion CMOS audio op-amp with high output drive.",+  "tags": [+    "op-amp",+    "audio",+    "dual",+    "low-noise",+    "cmos",+    "ti",+    "soic-8"+  ],+  "dependencies": {},+  "hero": {+    "type": "image",+    "path": "docs/hero.png"+  },+  "files": [+    "page.json",+    "README.md",+    "opa1656.kicad_sym",+    "opa1656.kicad_mod",+    "opa1656.glb",+    "opa1656.step",+    "docs/hero.png",+    "docs/opa1656-datasheet.pdf",+    "viewers/symbol.html",+    "viewers/footprint.html"+  ],+  "visibility": "public",+  "author": {+    "name": "Ray",+    "email": "[email protected]"+  }+}\ No newline at end of file