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AD623ARZ

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

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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AD623ARZ

Analog Devices · Instrumentation Amplifiers · SOIC-8

AD623ARZ 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 -RG passive Inverting terminal of the external gain-setting resistor RG; the gain is G = 1 + (100 kΩ/RG), and no external resistor gives G = 1.
2 -IN input Inverting in-amp input.
3 +IN input Noninverting in-amp input.
4 -VS power_in Negative supply terminal; the part operates from supplies giving 3 V to 12 V total, single or dual supply.
5 REF input In-amp output reference input; the voltage applied here establishes the common-mode voltage of the output.
6 OUTPUT output In-amp output, which swings rail-to-rail.
7 +VS power_in Positive supply terminal; the part operates from supplies giving 3 V to 12 V total, single or dual supply.
8 +RG passive Noninverting terminal of the external gain-setting resistor RG.

Key specifications

Parameter Value
Manufacturer Analog Devices
Package SOIC-8
Category Amplifiers/Comparators
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
Gain error G 0.03 0.1 % G = 1, VOUT = 0.15 V to 3.5 V; excludes RG 3
Gain error G 0.1 0.35 % G = 10, VOUT = 0.15 V to 4.5 V; excludes RG 3
Gain range G 1 1000 G = 1 + (100 kΩ/RG) 3
Nonlinearity 50 ppm G = 1 to 1000, VOUT = 0.15 V to 3.5 V (G = 1) / 0.15 V to 4.5 V (G > 1) 3
Gain vs. temperature 5 10 ppm/°C G = 1 3
Gain vs. temperature 50 ppm/°C G > 1 3
Input offset voltage VOSI 25 200 µV 3
Input offset voltage over temperature VOSI 350 µV Over temperature 3
Input offset voltage average temperature coefficient VOSI 0.1 2 µV/°C Average temperature coefficient (tempco) 3
Output offset voltage VOSO 200 1000 µV 3
Output offset voltage over temperature VOSO 1500 µV Over temperature 3
Output offset voltage average tempco VOSO 2.5 10 µV/°C Average tempco 3
Offset referred to input vs. supply (PSR) 80 100 dB G = 1 3
Offset referred to input vs. supply (PSR) 100 120 dB G = 10 3
Offset referred to input vs. supply (PSR) 100 130 dB G = 100 3
Input bias current 17 25 nA 3
Input bias current over temperature 27.5 nA Over temperature 3
Input offset current 0.25 2 nA 3
Input offset current over temperature 2.5 nA Over temperature 3
Common-mode rejection at 60 Hz with 1 kΩ source imbalance CMR 70 80 dB G = 1, VCM = 0 V to 3 V 4
Common-mode rejection at 60 Hz with 1 kΩ source imbalance CMR 90 100 dB G = 10, VCM = 0 V to 3 V 4
Common-mode rejection at 60 Hz with 1 kΩ source imbalance CMR 105 110 dB G = 100, VCM = 0 V to 3 V 4
Output swing 0.2 V RL = 10 kΩ (single supply); maximum is (+VS) − 0.5 V, not numeric here 4
Output swing 0.05 V RL = 100 kΩ (single supply); maximum is (+VS) − 0.15 V, not numeric here 4
Common-mode rejection at 60 Hz with 1 kΩ source imbalance CMR 70 80 dB G = 1, VCM = +3.5 V to −5.15 V (dual supply, VS = ±5 V) 6
Common-mode rejection at 60 Hz with 1 kΩ source imbalance CMR 90 100 dB G = 10, VCM = +3.5 V to −5.15 V (dual supply, VS = ±5 V) 6
Common-mode rejection at 60 Hz with 1 kΩ source imbalance CMR 105 110 dB G = 100, VCM = +3.5 V to −5.15 V (dual supply, VS = ±5 V) 6
Internal reference resistor RIN tolerance RIN -20 20 % Reference input resistance 7
Reference input resistance RIN 100 kΩ Reference input (REF) resistance, nominal 7
Reference input current IIN 50 60 µA VIN+, VREF = 0 V 7
Gain to output -0.0002 1 0.0002 V 7
Operating range, dual supply VS 2.5 6 V Dual supply (±VS), printed as ±2.5 V to ±6 V 7
Operating range, single supply VS 2.7 12 V Single supply (−VS = 0 V) 7
Quiescent current, dual supply 375 550 µA Dual supply 7
Quiescent current, single supply 305 480 µA Single supply 7
Quiescent current over temperature 625 µA Over temperature 7
Temperature range, for specified performance -40 85 °C For specified performance 7
Supply voltage 12 V 8
Internal power dissipation 650 mW Device in free air 8
Differential input voltage -6 6 V Printed as ±6 V 8
Storage temperature range -65 125 °C 8
Operating temperature range -40 85 °C 8
Lead temperature (soldering) 300 °C 10 s soldering 8
Thermal resistance, junction-to-ambient (8-lead SOIC) θJA 155 °C/W Device in free air, 8-lead SOIC package 8

CAD (KiCad official)

  • Symbol: AD623ARZ
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: ad623arz-etched.step / ad623arz-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ad623arz.step / ad623arz.glb are the bare package body.

Provenance

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

  • Datasheet: Analog Devices datasheet (26 pp, sha256 02310884590763f2, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-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