OPA2349EA from Texas Instruments, in a SOT-23-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	OUTA	output	Amplifier A output. Rail-to-rail output stage; swings to within 350mV of either supply rail with a 10kΩ load. Output current ±8mA typ; short-circuit current ±10mA.
2	-INA	input	Inverting input of amplifier A. Common-mode range (V-)-0.2V to (V+)+0.2V; input bias current ±0.5pA typ, ±10pA max; differential input impedance 10^13Ω
3	+INA	input	Non-inverting input of amplifier A. Common-mode range (V-)-0.2V to (V+)+0.2V; input bias current ±0.5pA typ, ±10pA max. Diode-clamped to the supply rails - limit input current to 10mA if signals exceed rails by more than 0.5V.
4	V-	power_in	Negative supply (or ground in single-supply operation). Total supply (V+)-(V-) range: 1.8V to 5.5V; absolute maximum 5.5V across the two supply pins. Quiescent current 1µA typ per amplifier.
5	+INB	input	Non-inverting input of amplifier B. Common-mode range (V-)-0.2V to (V+)+0.2V; input bias current ±0.5pA typ, ±10pA max. Diode-clamped to the supply rails.
6	-INB	input	Inverting input of amplifier B. Common-mode range (V-)-0.2V to (V+)+0.2V; input bias current ±0.5pA typ, ±10pA max; differential input impedance 10^13Ω
7	OUTB	output	Amplifier B output. Rail-to-rail output stage; swings to within 350mV of either supply rail with a 10kΩ load. Output current ±8mA typ; short-circuit current ±10mA.
8	V+	power_in	Positive supply. Specified range 1.8V to 5.5V referenced to V-; bypass with a 0.01µF ceramic capacitor close to the pin. Absolute maximum V+ to V-: 5.5V.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SOT-23-8
Category	Amplifiers/Comparators
Pins	8

Ordering variants

Same part, different packaging or reel option.

OPA2349EA
OPA2349EA/250
OPA2349EA/3K
OPA2349EA/3KG4
OPA2349EAUA
OPA2349EAUA/2K5

CAD (KiCad official)

Symbol: OPA2349EA
Footprint: Package_TO_SOT_SMD:SOT-23-8
3D model: SOT-23-8 (KiCad packages3D, STEP)

Provenance

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

Datasheet: Texas Instruments datasheet (None pp, sha256 2ad4d2616ad20ca5, retrieved 2026-08-17, tier: lcsc)
Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF