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ADA4891-1ARZ-R7

Public Made by Adom

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Analog Devices Operational Amplifier, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentoperational amplifier-comparatorada4891-1arz-r7factory-2.0.0extractor-text

Verified ADA4891-1ARZ-R7

by Ray · last 31 Oct 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

31 Oct 2026RayPublished by the parts factory: tier mfr, 8 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: ADA4891-1ARZ-R7 · SOIC-8 · 8 pins
  • ✓copper: 8 copper pads, none touching another net
  • ✓datasheet: all 8 pin names found in the 24-page datasheet
  • ✓distributor: lcsc C654274, digikey 505-ADA4891-1ARZ-R7TR-ND, mouser 584-ADA4891-1ARZ-R7
  • ✓family: SOIC-8_3.9x4.9mm_P1.27mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-8_lpa21o/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • ✓package_fit: height and body within the datasheet's package drawing (datasheet p.22)
  • ✓pads: 8 pins = 8 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 8 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ ada4891-1arz-r7.kicad_sym✓ ada4891-1arz-r7.kicad_mod✓ ada4891-1arz-r7.step
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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 3d ago
viewers ada4891-1arz-r7: viewers · Ray 3d ago
ada4891-1arz-r7-etched.glb Publish 0.1.0 · Ray 3d ago
ada4891-1arz-r7-etched.step ada4891-1arz-r7: factory component page (tier=mfr) · Ray 3d ago
ada4891-1arz-r7-hero.glb ada4891-1arz-r7: hero GLB from the etched model (keeps the MPN mark) · Ray 3d ago
ada4891-1arz-r7-hero.overlay.json Publish 0.1.0 · Ray 3d ago
ada4891-1arz-r7.glb Publish 0.1.0 · Ray 3d ago
ada4891-1arz-r7.kicad_mod Publish 0.1.0 · Ray 3d ago
ada4891-1arz-r7.kicad_sym Publish 0.1.0 · Ray 3d ago
ada4891-1arz-r7.lbr Publish 0.1.0 · Ray 3d ago
ada4891-1arz-r7.step Publish 0.1.0 · Ray 3d ago
package.json Publish 0.1.0 · Ray 3d ago
page.json Set visibility: public · Ray 3d ago
README.md Publish 0.1.0 · Ray 3d ago
verification.json Verified: Published by the parts factory: tier mfr, 8 pins · Ray 3d ago

ADA4891-1ARZ-R7

Analog Devices · Operational Amplifier · SOIC-8

ADA4891-1ARZ-R7 from Analog Devices, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 NC unconnected No connect; not internally connected.
2 -IN input Inverting input of the amplifier.
3 +IN input Noninverting input of the amplifier; input range extends 300 mV below the negative rail.
4 -VS power_in Negative supply voltage (ground in single-supply operation).
5 NC unconnected No connect; not internally connected.
6 OUT output Amplifier output; rail-to-rail output swings to within 50 mV of each supply rail.
7 +VS power_in Positive supply voltage; supply range is 2.7 V to 5.5 V.
8 NC unconnected No connect; not internally connected.

Key specifications

Parameter Value
Manufacturer Analog Devices
Package SOIC-8
Category Operational Amplifier/Comparator
Pins 8

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Input Offset Voltage VOS 2.5 10 mV VS = 5 V 4
Input Bias Current IB -50 2 50 pA VS = 5 V 4
Open-Loop Gain AOL 77 83 dB RL = 1 kΩ to 2.5 V, VS = 5 V 4
Open-Loop Gain AOL 72 76 dB RL = 1 kΩ to 1.5 V, VS = 3 V 5
Operating Range (supply) 2.7 5.5 V 5
Operating Temperature Range -40 125 °C 5
Supply Voltage 6 V 7
Storage Temperature Range -65 125 °C 7
Operating Temperature Range -40 125 °C 7
Lead Temperature 300 °C Soldering, 10 sec 7
Thermal Resistance, 8-Lead SOIC_N θJA 115 °C/W 8-Lead SOIC_N 7
Input Offset Voltage VOS 3.1 mV TMIN to TMAX, VS = 5 V 4
Offset Drift 6 µV/°C VS = 5 V 4
Open-Loop Gain AOL 71 dB RL = 150 Ω to 2.5 V, VS = 5 V 4
Common-Mode Rejection Ratio CMRR 88 dB VCM = 0 V to 3.0 V, VS = 5 V 4
Quiescent Current per Amplifier IQ 4.4 mA VS = 5 V 5
Quiescent Current per Amplifier IQ 3.5 mA VS = 3 V 6
Positive PSRR PSRR 65 dB +VS = 5 V to 5.25 V, −VS = 0 V 5
Negative PSRR PSRR 63 dB +VS = 5 V, −VS = −0.25 V to 0 V 5
−3 dB Small-Signal Bandwidth 240 MHz G = +1, VO = 0.2 V p-p, VS = 5 V 4
Input Voltage Noise 9 nV/√Hz f = 1 MHz, VS = 5 V 4
Input Capacitance 3.2 pF 4
Output Current 125 mA 1% THD with 1 MHz, VO = 2 V p-p, VS = 5 V 4

CAD (KiCad official)

  • Symbol: ADA4891-1ARZ-R7
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: ada4891-1arz-r7-etched.step / ada4891-1arz-r7-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ada4891-1arz-r7.step / ada4891-1arz-r7.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Analog Devices datasheet (24 pp, sha256 e0131dfef4f9ec15, retrieved 2026-10-31, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-5-5 (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