component

AD8221BRZ

Public Made by Adom

by adom

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

componentamplifiersad8221brzfactory-2.0.0extractor-text

Verified AD8221BRZ

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: AD8221BRZ · 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 C386298, digikey 505-AD8221BRZ-ND, mouser 584-AD8221BRZ
  • ✓family: SOIC-8_3.9x4.9mm_P1.27mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-1xr0atcu/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.23)
  • ✓pads: 8 pins = 8 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 8 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ ad8221brz.kicad_sym✓ ad8221brz.kicad_mod✓ ad8221brz.step
Spot something wrong? Report it as an issue Propose a fix Records are signed by members of adom.
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
ad8221brz / README.md
History Download
Ray Publish 0.1.0 c70b001 2d ago

AD8221BRZ

Analog Devices · Instrumentation OpAmps · SOIC-8

AD8221BRZ 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 −IN input Negative input terminal of the instrumentation amplifier.
2 RG passive Gain setting terminal; place a resistor across the RG pins to set the gain, G = 1 + (49.4 kΩ/RG).
3 RG passive Gain setting terminal; place a resistor across the RG pins to set the gain, G = 1 + (49.4 kΩ/RG).
4 +IN input Positive input terminal of the instrumentation amplifier.
5 −VS power_in Negative power supply terminal (supply range ±2.3 V to ±18 V).
6 REF input Reference voltage terminal; drive with a low impedance voltage source to level-shift the output.
7 VOUT output Output terminal of the instrumentation amplifier.
8 +VS power_in Positive power supply terminal (supply range ±2.3 V to ±18 V).

Key specifications

Parameter Value
Manufacturer Analog Devices
Package SOIC-8
Category Amplifiers
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
CMRR DC to 60 Hz, G=1 CMRR 90 dB 1 kΩ source imbalance, VCM = -10 V to +10 V, G = 1 3
CMRR DC to 60 Hz, G=10 CMRR 110 dB VCM = -10 V to +10 V, G = 10 3
CMRR DC to 60 Hz, G=100 CMRR 130 dB VCM = -10 V to +10 V, G = 100 3
CMRR DC to 60 Hz, G=1000 CMRR 140 dB VCM = -10 V to +10 V, G = 1000 3
CMRR at 10 kHz, G=1 CMRR 80 dB VCM = -10 V to +10 V, G = 1 3
CMRR at 10 kHz, G=10 CMRR 100 dB VCM = -10 V to +10 V, G = 10 3
CMRR at 10 kHz, G=100 CMRR 110 dB VCM = -10 V to +10 V, G = 100 3
CMRR at 10 kHz, G=1000 CMRR 110 dB VCM = -10 V to +10 V, G = 1000 3
Input Offset Voltage VOSI 25 µV VS = ±5 V to ±15 V 3
Input Offset Voltage over temperature VOSI 45 µV T = -40°C to +85°C 3
Input Offset Voltage average TC VOSI TC 0.3 µV/°C Average TC 3
Output Offset Voltage VOSO 200 µV VS = ±5 V to ±15 V 3
Output Offset Voltage over temperature VOSO 0.45 mV T = -40°C to +85°C 3
Output Offset Voltage average TC VOSO TC 5 µV/°C Average TC 3
Offset RTI vs. Supply (PSR), G=1 PSR 94 110 dB VS = ±2.3 V to ±18 V, G = 1 3
Offset RTI vs. Supply (PSR), G=10 PSR 114 130 dB VS = ±2.3 V to ±18 V, G = 10 3
Offset RTI vs. Supply (PSR), G=100 PSR 130 140 dB VS = ±2.3 V to ±18 V, G = 100 3
Offset RTI vs. Supply (PSR), G=1000 PSR 140 150 dB VS = ±2.3 V to ±18 V, G = 1000 3
Input Bias Current IB 0.2 0.4 nA 3
Input Bias Current over temperature IB 1 nA T = -40°C to +85°C 3
Input Bias Current average TC IB TC 1 pA/°C Average TC 3
Input Offset Current IOS 0.1 0.4 nA 3
Input Offset Current over temperature IOS 0.6 nA T = -40°C to +85°C 3
Input Offset Current average TC IOS TC 1 pA/°C Average TC 3
Reference Input Current IIN 50 60 µA VIN+, VIN-, VREF = 0 3
Reference Input Resistance RIN 20 kΩ 3
Reference Gain to Output 1 V/V 1 ± 0.0001 3
Power Supply Operating Range VS -18 18 V Printed ±2.3 to ±18 V; min magnitude 2.3 4
Quiescent Current IQ 0.9 1 mA 4
Quiescent Current over temperature IQ 1 1.2 mA T = -40°C to +85°C 4
Slew Rate, G=1 SR 1.5 2 V/µs G = 1 4
Slew Rate, G=5 to 100 SR 2 2.5 V/µs G = 5 to 100 4
Gain Range G 1 1000 V/V G = 1 + (49.4 kΩ/RG) 4
Gain Error, G=1 0.02 % VOUT ± 10 V, G = 1 4
Gain Error, G=10 0.15 % VOUT ± 10 V, G = 10 4
Gain Error, G=100 0.15 % VOUT ± 10 V, G = 100 4
Gain Error, G=1000 0.15 % VOUT ± 10 V, G = 1000 4
Gain Nonlinearity, G=1 to 10 3 10 ppm VOUT = -10 V to +10 V, RL = 10 kΩ 4
Gain Nonlinearity, G=100 5 15 ppm VOUT = -10 V to +10 V, RL = 10 kΩ 4
Gain Nonlinearity, G=1000 10 40 ppm VOUT = -10 V to +10 V, RL = 10 kΩ 4
Gain Nonlinearity, G=1 to 100, RL=2k 10 95 ppm VOUT = -10 V to +10 V, RL = 2 kΩ 4
Gain vs. Temperature, G=1 2 5 ppm/°C G = 1 4
Gain vs. Temperature, G>1 -50 ppm/°C G > 1 4
Short-Circuit Current ISC 18 mA 4
Specified Performance Temperature Range -40 85 °C 5
Operating Temperature Range -40 125 °C 5
Supply Voltage 18 V Printed ±18 V 8
Internal Power Dissipation 200 mW 8
Storage Temperature Range -65 150 °C 8
Operating Temperature Range (abs max) -40 125 °C 8
Thermal Resistance, 8-Lead SOIC θJA 121 °C/W 4-Layer JEDEC board, free air 8
Input Voltage Noise eNI 8 nV/√Hz 1 kHz, VIN+, VIN-, VREF = 0 3
Output Voltage Noise eNO 75 nV/√Hz 1 kHz 3
Small Signal -3 dB Bandwidth, G=1 825 kHz G = 1 4

CAD (KiCad official)

  • Symbol: AD8221BRZ
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: ad8221brz-etched.step / ad8221brz-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ad8221brz.step / ad8221brz.glb are the bare package body.

Provenance

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

  • Datasheet: Analog Devices datasheet (24 pp, sha256 1717c8a938166715, 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