AD8227ARMZ from Analog Devices, in a MSOP-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 of the instrumentation amplifier; the input range can go below ground and the inputs are protected beyond the supplies, with input voltages up to 40 V from the opposite supply rail.
2	RG	passive	Gain-setting pin; place the gain resistor between pins 2 and 3, with G = 5 + 80 kΩ/RG and the gain defaulting to 5 when no resistor is used.
3	RG	passive	Gain-setting pin; place the gain resistor between pins 2 and 3, with G = 5 + 80 kΩ/RG and the gain defaulting to 5 when no resistor is used.
4	+IN	input	Positive input of the instrumentation amplifier; the input range can go below ground and the inputs are protected beyond the supplies, with input voltages up to 40 V from the opposite supply rail.
5	-VS	power_in	Negative supply; the part operates from ±1.5 V to ±18 V dual supply or 2.2 V to 36 V single supply.
6	REF	input	Reference pin that must be driven by low impedance (below 2 Ω for best performance) and should not exceed either supply by more than 0.3 V.
7	VOUT	output	Output with rail-to-rail swing, developed with respect to the REF pin potential; output short-circuit current is indefinite.
8	+VS	power_in	Positive supply; the part operates from ±1.5 V to ±18 V dual supply or 2.2 V to 36 V single supply.

Key specifications

Parameter	Value
Manufacturer	Analog Devices
Package	MSOP-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
Common-mode rejection ratio, G = 5, DC to 60 Hz		90			dB	VCM = −10 V to +10 V; DC to 60 Hz; G = 5	3
Common-mode rejection ratio, G = 10, DC to 60 Hz		96			dB	VCM = −10 V to +10 V; DC to 60 Hz; G = 10	3
Common-mode rejection ratio, G = 100, DC to 60 Hz		105			dB	VCM = −10 V to +10 V; DC to 60 Hz; G = 100	3
Common-mode rejection ratio, G = 1000, DC to 60 Hz		105			dB	VCM = −10 V to +10 V; DC to 60 Hz; G = 1000	3
Common-mode rejection ratio, G = 5, 5 kHz		80			dB	VCM = −10 V to +10 V; 5 kHz; G = 5	3
Common-mode rejection ratio, G = 10, 5 kHz		86			dB	VCM = −10 V to +10 V; 5 kHz; G = 10	3
Common-mode rejection ratio, G = 100, 5 kHz		86			dB	VCM = −10 V to +10 V; 5 kHz; G = 100	3
Common-mode rejection ratio, G = 1000, 5 kHz		86			dB	VCM = −10 V to +10 V; 5 kHz; G = 1000	3
Input offset voltage	VOSI			200	μV	VS = ±5 V to ±15 V	3
Input offset voltage average temperature drift	VOSI		0.2	2	μV/°C	TA = −40°C to +125°C	3
Output offset voltage	VOSO			1000	μV	VS = ±5 V to ±15 V	3
Output offset voltage average temperature drift	VOSO		2	10	μV/°C	TA = −40°C to +125°C	3
Offset RTI vs. supply (PSR), G = 5		90			dB	VS = ±5 V to ±15 V; G = 5	3
Offset RTI vs. supply (PSR), G = 10		96			dB	VS = ±5 V to ±15 V; G = 10	3
Offset RTI vs. supply (PSR), G = 100		105			dB	VS = ±5 V to ±15 V; G = 100	3
Offset RTI vs. supply (PSR), G = 1000		105			dB	VS = ±5 V to ±15 V; G = 1000	3
Input bias current		5	20	27	nA	TA = +25°C	3
Input bias current		5	15	25	nA	TA = +125°C	3
Input bias current		5	30	35	nA	TA = −40°C	3
Gain range		5		1000	V/V		4
Gain error, G = 5				0.04	%	VOUT = −10 V to +10 V; G = 5	4
Gain error, G = 10 to 1000				0.3	%	VOUT = −10 V to +10 V; G = 10 to 1000	4
Gain nonlinearity, G = 5				10	ppm	VOUT = −10 V to +10 V; G = 5; RL ≥ 2 kΩ	4
Gain nonlinearity, G = 10				15	ppm	VOUT = −10 V to +10 V; G = 10; RL ≥ 2 kΩ	4
Gain nonlinearity, G = 100				15	ppm	VOUT = −10 V to +10 V; G = 100; RL ≥ 2 kΩ	4
Gain nonlinearity, G = 1000				750	ppm	VOUT = −10 V to +10 V; G = 1000; RL ≥ 2 kΩ	4
Operating range, dual supply		1.5		18	V	Dual-supply operation	4
Quiescent current, TA = +25°C			350	425	μA	TA = +25°C	4
Quiescent current, TA = −40°C			250	325	μA	TA = −40°C	4
Quiescent current, TA = +85°C			450	525	μA	TA = +85°C	4
Quiescent current, TA = +125°C			525	600	μA	TA = +125°C	4
Specified temperature range		-40		125	°C		4
Operating range, single supply (Table 3, +VS = 2.7 V test set)		2.2		36	V	Single-supply operation	6
Quiescent current, +VS = 2.7 V, TA = +25°C			325	400	μA	+VS = 2.7 V; TA = +25°C	6
Quiescent current, +VS = 2.7 V, TA = −40°C			250	325	μA	+VS = 2.7 V; TA = −40°C	6
Quiescent current, +VS = 2.7 V, TA = +85°C			425	500	μA	+VS = 2.7 V; TA = +85°C	6
Quiescent current, +VS = 2.7 V, TA = +125°C			475	550	μA	+VS = 2.7 V; TA = +125°C	6
Gain error, G = 5 (single supply)				0.04	%	VOUT = 0.8 V to 1.8 V; G = 5	6
Gain error, G = 10 to 1000 (single supply)				0.3	%	VOUT = 0.2 V to 2.5 V; G = 10 to 1000	6
Supply voltage		-18		18	V		7
Storage temperature range		-65		150	°C		7
Operating temperature range		-40		125	°C		7
Maximum junction temperature				140	°C		7
Thermal resistance, junction to ambient, 8-lead MSOP, 4-layer JEDEC board	θJA		135		°C/W	Free air; 4-layer JEDEC board	7

CAD (KiCad official)

Symbol: AD8227ARMZ
Footprint: Package_SO:MSOP-8_3x3mm_P0.65mm
3D model: MSOP-8 (KiCad packages3D, STEP)
3D model files: ad8227armz-etched.step / ad8227armz-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ad8227armz.step / ad8227armz.glb are the bare package body.

Provenance

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

Datasheet: Analog Devices datasheet (24 pp, sha256 9c19dc145df60e0c, retrieved 2026-10-31, tier: manufacturer)
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).

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AD8227ARMZ

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