OPA1656 Dual Audio Op-Amp

{
  "schema_version": 1,
  "type": "component",
  "slug": "opa1656",
  "title": "OPA1656 Dual Audio Op-Amp",
  "brief": "Dual low-noise, low-distortion CMOS audio op-amp with high output drive.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "op-amp",
    "audio",
    "dual",
    "low-noise",
    "cmos",
    "ti",
    "soic-8"
  ],
  "component": {
    "mpn": "OPA1656",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Analog",
    "subcategory": "Operational Amplifier",
    "datasheet": "https://www.ti.com/lit/ds/symlink/opa1656.pdf",
    "parts": {
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      "footprint": "opa1656.kicad_mod",
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      "model_3d_step_plain": "opa1656.step",
      "lbr": "opa1656.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "OUT A",
        "type": "output",
        "description": "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."
      },
      {
        "number": "2",
        "name": "-IN A",
        "type": "input",
        "description": "Inverting input, channel A. High-impedance FET input (100 MΩ differential || 9.1 pF), input bias current typically ±10 pA."
      },
      {
        "number": "3",
        "name": "+IN A",
        "type": "input",
        "description": "Noninverting input, channel A. High-impedance FET input; common-mode range (V-) to (V+) - 2.25 V."
      },
      {
        "number": "4",
        "name": "V-",
        "type": "power_in",
        "description": "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+."
      },
      {
        "number": "5",
        "name": "+IN B",
        "type": "input",
        "description": "Noninverting input, channel B. High-impedance FET input; common-mode range (V-) to (V+) - 2.25 V."
      },
      {
        "number": "6",
        "name": "-IN B",
        "type": "input",
        "description": "Inverting input, channel B. High-impedance FET input, input bias current typically ±10 pA."
      },
      {
        "number": "7",
        "name": "OUT B",
        "type": "output",
        "description": "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."
      },
      {
        "number": "8",
        "name": "V+",
        "type": "power_in",
        "description": "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."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/opa1656.pdf",
        "pages": 42,
        "sha256": "4243b58e553e6f27",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "opa1656-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
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        "sha256": "f22ba86d976cb2fcf96acb9be28d42f4f7fdecd7c2b82221bfd50bce02bda95f",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "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"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "audio op-amp",
    "low-noise op-amp",
    "hi-fi amplifier",
    "headphone amplifier"
  ],
  "discovery_pitch": "A dual CMOS audio op-amp pairing very low noise with low distortion and strong output drive for high-fidelity stages.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
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    "path": "docs/hero.png"
  },
  "files": [
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  "variants": [
    {
      "mpn": "OPA1656D",
      "kind": "unknown"
    },
    {
      "mpn": "OPA1656DR",
      "kind": "unknown"
    }
  ]
}