AD8651ARMZ-REEL 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 rail-to-rail CMOS amplifier; input voltage range extends to both supply rails and is limited to GND to VS + 0.3 V absolute maximum.
3	+IN	input	Non-inverting input of the rail-to-rail CMOS amplifier; input voltage range extends to both supply rails and is limited to GND to VS + 0.3 V absolute maximum.
4	V-	power_in	Negative supply (ground in single-supply operation); supply is 2.7 V to 5.5 V total.
5	NC	unconnected	No connect; not internally connected.
6	OUT	output	Rail-to-rail amplifier output with 40 mA output current and 80 mA short-circuit limit.
7	V+	power_in	Positive supply, 2.7 V to 5.5 V (6.0 V absolute maximum), bypass with 0.1 µF close to the pin.
8	NC	unconnected	No connect; not internally connected.

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
Offset Voltage (V+=2.7V)	VOS		100	350	μV	V+=2.7 V, 0 V ≤ VCM ≤ 2.7 V	3
Offset Voltage (V+=2.7V, to 85°C)	VOS			1.4	mV	V+=2.7 V, -40°C ≤ TA ≤ +85°C, 0 V ≤ VCM ≤ 2.7 V	3
Offset Voltage (V+=2.7V, to 125°C)	VOS			1.6	mV	V+=2.7 V, -40°C ≤ TA ≤ +125°C, 0 V ≤ VCM ≤ 2.7 V	3
Input Bias Current (V+=2.7V)	IB		1	10	pA	V+=2.7 V	3
Input Bias Current (V+=2.7V, to 125°C)	IB			600	pA	V+=2.7 V, -40°C ≤ TA ≤ +125°C	3
Input Offset Current (V+=2.7V)	IOS		1	10	pA	V+=2.7 V	3
Input Offset Current (V+=2.7V, to 85°C)	IOS			30	pA	V+=2.7 V, -40°C ≤ TA ≤ +85°C	3
Input Offset Current (V+=2.7V, to 125°C)	IOS			600	pA	V+=2.7 V, -40°C ≤ TA ≤ +125°C	3
Input Voltage Range (V+=2.7V)	VCM	-0.1		2.8	V	V+=2.7 V	3
CMRR (V+=2.7V)	CMRR	75	95		dB	V+ = 2.7 V, -0.1 V < VCM < +2.8 V	3
CMRR (V+=2.7V, to 85°C)	CMRR	70	88		dB	-40°C ≤ TA ≤ +85°C, -0.1 V < VCM < +2.8 V	3
CMRR (V+=2.7V, to 125°C)	CMRR	65	85		dB	-40°C ≤ TA ≤ +125°C, -0.1 V < VCM < +2.8 V	3
Large Signal Voltage Gain (V+=2.7V)	AVO	100	115		dB	RL = 1 kΩ, 200 mV < VO < 2.5 V	3
Large Signal Voltage Gain (V+=2.7V, 85°C)	AVO	100	114		dB	RL = 1 kΩ, 200 mV < VO < 2.5 V, TA = 85°C	3
Large Signal Voltage Gain (V+=2.7V, 125°C)	AVO	95	108		dB	RL = 1 kΩ, 200 mV < VO < 2.5 V, TA = 125°C	3
Output Voltage High (V+=2.7V)	VOH	2.67			V	IL = 250 μA, -40°C ≤ TA ≤ +125°C	3
Output Voltage Low (V+=2.7V)	VOL			30	mV	IL = 250 μA, -40°C ≤ TA ≤ +125°C	3
Power Supply Rejection Ratio (2.7V table)	PSRR	76	94		dB	VS = 2.7 V to 5.5 V, VCM = 0 V	3
Power Supply Rejection Ratio (2.7V table, to 125°C)	PSRR	74	93		dB	-40°C ≤ TA ≤ +125°C	3
Supply Current (V+=2.7V)	ISY		9	12	mA	IO = 0	3
Supply Current (V+=2.7V, to 125°C)	ISY			14.5	mA	-40°C ≤ TA ≤ +125°C	3
Offset Voltage (V+=5V)	VOS		100	350	μV	V+=5 V, 0 V ≤ VCM ≤ 5 V	4
Offset Voltage (V+=5V, to 85°C)	VOS			1.4	mV	-40°C ≤ TA ≤ +85°C, 0 V ≤ VCM ≤ 5 V	4
Offset Voltage (V+=5V, to 125°C)	VOS			1.7	mV	-40°C ≤ TA ≤ +125°C, 0 V ≤ VCM ≤ 5 V	4
Input Bias Current (V+=5V)	IB		1	10	pA	V+=5 V	4
Input Bias Current (V+=5V, to 85°C)	IB			30	pA	-40°C ≤ TA ≤ +85°C	4
Input Bias Current (V+=5V, to 125°C)	IB			600	pA	-40°C ≤ TA ≤ +125°C	4
Input Offset Current (V+=5V)	IOS		1	10	pA	V+=5 V	4
Input Offset Current (V+=5V, to 85°C)	IOS			30	pA	-40°C ≤ TA ≤ +85°C	4
Input Offset Current (V+=5V, to 125°C)	IOS			600	pA	-40°C ≤ TA ≤ +125°C	4
Input Voltage Range (V+=5V)	VCM	-0.1		5.1	V	V+=5 V	4
CMRR (V+=5V)	CMRR	80	95		dB	0.1 V < VCM < 5.1 V	4
CMRR (V+=5V, to 85°C)	CMRR	75	94		dB	-40°C ≤ TA ≤ +85°C, 0.1 V < VCM < 5.1 V	4
CMRR (V+=5V, to 125°C)	CMRR	70	90		dB	-40°C ≤ TA ≤ +125°C, 0.1 V < VCM < 5.1 V	4
Large Signal Voltage Gain (V+=5V)	AVO	100	115		dB	RL = 1 kΩ, 200 mV < VO < 4.8 V	4
Large Signal Voltage Gain (V+=5V, 85°C)	AVO	98	114		dB	RL = 1 kΩ, 200 mV < VO < 4.8 V, TA = 85°C	4
Large Signal Voltage Gain (V+=5V, 125°C)	AVO	95	111		dB	RL = 1 kΩ, 200 mV < VO < 4.8 V, TA = 125°C	4
Output Voltage High (V+=5V)	VOH	4.97			V	IL = 250 µA, -40°C ≤ TA ≤ +125°C	4
Output Voltage Low (V+=5V)	VOL			30	mV	IL = 250 µA, -40°C ≤ TA ≤ +125°C	4
Power Supply Rejection Ratio (5V table)	PSRR	76	94		dB	VS= 2.7 V to 5.5 V, VCM = 0 V	4
Power Supply Rejection Ratio (5V table, to 125°C)	PSRR	74	93		dB	-40°C ≤ TA ≤ +125°C	4
Supply Current (V+=5V)	ISY		9.5	14	mA	IO = 0	4
Supply Current (V+=5V, to 125°C)	ISY			15	mA	-40°C ≤ TA ≤ +125°C	4
Supply Voltage	VS			6	V		5
Input Voltage		0			V	GND to VS + 0.3 V (upper limit VS + 0.3 V)	5
Differential Input Voltage		-6		6	V		5
ESD (HBM)				4000	V	Human body model	5
Storage Temperature Range		-65		150	°C	RM, R Package	5
Operating Temperature Range		-40		125	°C		5
Junction Temperature Range		-65		150	°C	RM, R Package	5
Lead Temperature				300	°C	Soldering, 10 sec	5
Single-Supply Operating Range	VS	2.7		5.5	V		1
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
Offset Voltage Drift	TCVOS		4		μV/°C		4
Slew Rate	SR		41		V/µs	G = 1, RL = 10 kΩ, V+=5 V	4
Gain Bandwidth Product	GBP		50		MHz	G = 1, V+=5 V	4
Total Harmonic Distortion + Noise	THD + N		0.0006		%	G = 1, RL = 600 Ω, f = 1 kHz, VIN = 2 V p-p, V+=5 V	4
Voltage Noise Density	en		4.5		nV/√Hz	f = 100 kHz, V+=5 V	4

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	15

CAD (KiCad official)

Symbol: AD8651ARMZ-REEL
Footprint: Package_SO:MSOP-8_3x3mm_P0.65mm
3D model: MSOP-8 (KiCad packages3D, STEP)
3D model files: ad8651armz-reel-etched.step / ad8651armz-reel-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ad8651armz-reel.step / ad8651armz-reel.glb are the bare package body.

Provenance

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

Datasheet: Analog Devices datasheet (20 pp, sha256 7105eff6fa1fb3ea, 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

AD8651ARMZ-REEL

Verified AD8651ARMZ-REEL

Verification log 1 record

3D Model

Symbol & Footprint

Schematic Symbol

PCB Footprint

Datasheet

README