OPA1678IDRGT from Texas Instruments, in a WSON-8-EP(3x3). 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	OUT A	output	Output of channel A.
2	-IN A	input	Inverting input of channel A.
3	+IN A	input	Noninverting input of channel A.
4	V-	power_in	Negative (lowest) power supply; supply range is 4.5 V to 36 V single or ±2.25 V to ±18 V dual.
5	+IN B	input	Noninverting input of channel B.
6	-IN B	input	Inverting input of channel B.
7	OUT B	output	Output of channel B.
8	V+	power_in	Positive (highest) power supply; supply range is 4.5 V to 36 V single or ±2.25 V to ±18 V dual.
9	Thermal Pad	passive	Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	WSON-8-EP(3x3)
Category	Operational Amplifier/Comparator
Pins	9

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter	Symbol	Min	Typ	Max	Unit	Conditions	Page
Supply voltage (absolute max)	VS			40	V	VS = (V+), (V-)	6
Input voltage		-0.5		0.5	V	(V-), 0.5 to (V+) + 0.5 (relative to supply rails)	6
Input current		-10		10	mA	all pins except power-supply pins	6
Operating temperature (abs max)	TA	-55		125	°C		6
Junction temperature	TJ			150	°C		6
Storage temperature	Tstg	-65		150	°C		6
Supply voltage single supply	VS	4.5		36	V	Single supply	6
Supply voltage dual supply	VS	-2.25		2.25	V	Dual supply, printed as ±2.25 to ±18 (±18 max)	6
Operating temperature	TA	-40		125	°C		6
Junction-to-ambient thermal resistance	RθJA		66.9		°C/W	DRG (SON) 8 pins	7
Junction-to-case (top) thermal resistance	RθJC(top)		54.5		°C/W	DRG (SON) 8 pins	7
Junction-to-board thermal resistance	RθJB		40.4		°C/W	DRG (SON) 8 pins	7
Junction-to-case (bottom) thermal resistance	RθJC(bot)		10.8		°C/W	DRG (SON) 8 pins	7
Input offset voltage	VOS	-2	0.5	2	mV	VS = ±2.25 V to ±18 V	8
Power-supply rejection ratio	PSRR		3	8	µV/V	VS = ±2.25 V to ±18 V	8
Common-mode rejection ratio	CMRR	100	110		dB		8
Open-loop voltage gain	AOL	106	114		dB	(V-) + 0.8 V ≤ VO ≤ (V+), 0.8 V	8
Quiescent current (per channel)	IQ		2	2.5	mA	IO = 0 A	8
Quiescent current (per channel), over temperature	IQ			2.8	mA	IO = 0 A, TA = -40°C to 125°C	8
Common-mode voltage range	VCM	0.5			V	(V-)+0.5 to (V+), 2	8
Output voltage	VO	0.8		0.8	V	(V-) + 0.8 to (V+), 0.8	8
Short-circuit current	ISC		50		mA	±50, one channel at a time	8
Input bias current	IB		10		pA	VCM = 0 V, printed ±10	8
Gain-bandwidth product	GBW		16		MHz	G = 1	8
Slew rate	SR		9		V/µs	G = -1	8

CAD (KiCad official)

Symbol: OPA1678IDRGT
Footprint: Package_SON:WSON-8-1EP_3x3mm_P0.5mm_EP1.6x2.0mm
3D model: WSON-8-EP(3x3) (KiCad packages3D, STEP)
3D model files: opa1678idrgt-etched.step / opa1678idrgt-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); opa1678idrgt.step / opa1678idrgt.glb are the bare package body.

Provenance

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

Datasheet: Texas Instruments datasheet (53 pp, sha256 dd8d8b4c34cfcf06, retrieved 2026-10-31, tier: manufacturer)
Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
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

OPA1678IDRGT

Verified OPA1678IDRGT

Verification log 1 record

3D Model

Symbol & Footprint

Schematic Symbol

PCB Footprint

Datasheet

README