AD8655ARMZ 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	NC	unconnected	No connect; not internally connected.
2	-IN	input	Inverting input of the amplifier, rail-to-rail; input voltage should not exceed the supplies by more than 0.3 V and input current should be limited to less than 5 mA.
3	+IN	input	Non-inverting input of the amplifier, rail-to-rail; input voltage should not exceed the supplies by more than 0.3 V and input current should be limited to less than 5 mA.
4	V-	power_in	Negative supply (ground in single-supply use); supply voltage range is 2.7 V to 5.5 V between V+ and V-, bypassed with 0.1 µF close to the package.
5	NC	unconnected	No connect; not internally connected.
6	OUT	output	Amplifier output with rail-to-rail swing, able to drive capacitive loads up to 500 pF without oscillating.
7	V+	power_in	Positive supply; operates from 2.7 V to 5.5 V with an absolute maximum of 6 V, bypassed with 0.1 µF close to the package.
8	NC	unconnected	No connect; not internally connected.

Key specifications

Parameter	Value
Manufacturer	Analog Devices
Package	MSOP-8
Category	RF & Radio
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
Offset Voltage	VOS		50	250	µV	VS=5.0 V, VCM = 0 V to 5 V	3
Offset Voltage over temperature	VOS			550	µV	VS=5.0 V, −40°C ≤ TA ≤ +125°C	3
Offset Voltage Drift	ΔVOS/ΔT		0.4	2.3	µV/°C	VS=5.0 V, −40°C ≤ TA ≤ +125°C	3
Input Bias Current	IB		1	10	pA	VS=5.0 V	3
Input Bias Current over temperature	IB			500	pA	VS=5.0 V, −40°C ≤ TA ≤ +125°C	3
Input Offset Current	IOS			10	pA	VS=5.0 V	3
Input Offset Current over temperature	IOS			500	pA	VS=5.0 V, −40°C ≤ TA≤ +125°C	3
Input Voltage Range		0		5	V	VS=5.0 V	3
Common-Mode Rejection Ratio	CMRR	85	100		dB	VS=5.0 V, VCM = 0 V to 5 V	3
Large Signal Voltage Gain	AVO	100	110		dB	VS=5.0 V, VO = 0.2 V to 4.8 V, RL = 10 kΩ, VCM = 0 V	3
Large Signal Voltage Gain over temperature	AVO	95			dB	VS=5.0 V, −40°C ≤ TA ≤ +125°C	3
Output Voltage High	VOH	4.97	4.991		V	VS=5.0 V, IL = 1 mA; −40°C ≤ TA ≤ +125°C	3
Output Voltage Low	VOL		8	30	mV	VS=5.0 V, IL = 1 mA; −40°C ≤ TA ≤ +125°C	3
Output Current	IOUT		220		mA	VS=5.0 V, VOUT = ±0.5 V (printed ±220)	3
Power Supply Rejection Ratio	PSRR	88	105		dB	VS = 2.7 V to 5.0 V	3
Supply Current/Amplifier	ISY		3.7	4.5	mA	VS=5.0 V, VO = 0 V	3
Supply Current/Amplifier over temperature	ISY			5.3	mA	VS=5.0 V, −40°C ≤ TA ≤ +125°C	3
Offset Voltage	VOS		44	250	µV	VS=2.7 V, VCM = 0 V to 2.7 V	4
Offset Voltage over temperature	VOS			550	µV	VS=2.7 V, −40°C ≤ TA ≤ +125°C	4
Offset Voltage Drift	ΔVOS/ΔT		0.4	2	µV/°C	VS=2.7 V, −40°C ≤ TA ≤ +125°C	4
Input Bias Current	IB		1	10	pA	VS=2.7 V	4
Input Bias Current over temperature	IB			500	pA	VS=2.7 V, −40°C ≤ TA ≤ +125°C	4
Input Offset Current	IOS			10	pA	VS=2.7 V	4
Input Offset Current over temperature	IOS			500	pA	VS=2.7 V, −40°C ≤ TA ≤ +125°C	4
Input Voltage Range		0		2.7	V	VS=2.7 V	4
Common-Mode Rejection Ratio	CMRR	80	98		dB	VS=2.7 V, VCM = 0 V to 2.7 V	4
Large Signal Voltage Gain over temperature	AVO	90			dB	VS=2.7 V, −40°C ≤ TA ≤ +125°C	4
Output Voltage High	VOH	2.67	2.688		V	VS=2.7 V, IL = 1 mA; −40°C ≤ TA ≤ +125°C	4
Output Voltage Low	VOL		10	30	mV	VS=2.7 V, IL = 1 mA; −40°C ≤ TA ≤ +125°C	4
Supply Current/Amplifier	ISY		3.7	4.5	mA	VS=2.7 V, VO = 0 V	4
Supply Current/Amplifier over temperature	ISY			5.3	mA	VS=2.7 V, −40°C ≤ TA ≤ +125°C	4
Supply Voltage				6	V		5
Differential Input Voltage		-6		6	V		5
Electrostatic Discharge (HBM)				3	kV		5
Storage Temperature Range		-65		150	°C	R, RM Packages	5
Junction Temperature Range		-65		150	°C	R, RM Packages	5
Lead Temperature (Soldering, 10 sec)				260	°C		5
Thermal Resistance Junction-to-Ambient	θJA		210		°C/W	8-Lead MSOP (RM)	5
Thermal Resistance Junction-to-Case	θJC		45		°C/W	8-Lead MSOP (RM)	5
Operating Temperature Range		-40		125	°C		19
Gain Bandwidth Product	GBP		28		MHz	VS=5.0 V	3

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part	Material	Colour / plating	Datasheet says	Page
housing	PC		Poor PC board layout, contaminants, and the board insulator	18

CAD (KiCad official)

Symbol: AD8655ARMZ
Footprint: Package_SO:MSOP-8_3x3mm_P0.65mm
3D model: MSOP-8 (KiCad packages3D, STEP)
3D model files: ad8655armz-etched.step / ad8655armz-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ad8655armz.step / ad8655armz.glb are the bare package body.

Provenance

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

Datasheet: Analog Devices datasheet (20 pp, sha256 88b0ee350a922666, retrieved 2026-10-30, 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

AD8655ARMZ

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3D Model

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