OPA2705UA from Texas Instruments, in a SOIC-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	Out A	output	Output of amplifier A, which the datasheet states swings to within 40mV of the supply rail for light loads.
2	-In A	input	Inverting input of amplifier A; the input common-mode range extends 300mV beyond the supply rails.
3	+In A	input	Non-inverting input of amplifier A; the input swing extends 300mV beyond the supply rails.
4	V-	power_in	Negative supply rail; the part is specified for a single supply of 4V to 12V or dual supplies of ±2V to ±6V.
5	+In B	input	Non-inverting input of amplifier B; the input swing extends 300mV beyond the supply rails.
6	-In B	input	Inverting input of amplifier B; the input common-mode range extends 300mV beyond the supply rails.
7	Out B	output	Output of amplifier B, which the datasheet states swings to within 40mV of the supply rail for light loads.
8	V+	power_in	Positive supply rail; the part is specified for a single supply of 4V to 12V or dual supplies of ±2V to ±6V.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SOIC-8
Category	Interface ICs
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
Input Offset Voltage	VOS	-5	0.5	5	mV	VS = ±5V, VCM = 0V	3
Power Supply Rejection Ratio vs Power Supply	PSRR		20	100	µV/V	VS = ±2V to ±6V, VCM = 0V	3
Input Bias Current	IB	-10	1	10	pA	VS = ±5V, VCM = 0V	3
Input Offset Current	IOS	-10	0.5	10	pA	VS = ±5V, VCM = 0V	3
Common-Mode Rejection Ratio	CMRR	66	77		dB	VS = ±5V, (V-), 0.3V < VCM < (V+) + 0.3V	3
Common-Mode Rejection Ratio	CMRR	66	96		dB	VS = ±5V, (V-), 0.3V < VCM < (V+), 2V	3
Open-Loop Voltage Gain	AOL	100	110		dB	RL = 20kΩ, (V-)+0.075V < VO < (V+)-0.075V	3
Specified Voltage Range, Single Supply	VS	4		12	V		3
Specified Voltage Range, Dual Supplies	VS	2		6	V		3
Operating Voltage Range		3.6		12	V		3
Quiescent Current (per amplifier)	IQ		160	250	µA	IO = 0	3
Specified Range		-40		85	°C		3
Supply Voltage, V+ to V-				13.2	V		2
Signal Input Terminals, Current				10	mA	Signal input terminals (note 2)	2
Operating Temperature		-55		125	°C		2
Storage Temperature		-65		150	°C		2
Junction Temperature				150	°C		2
Lead Temperature (soldering)				300	°C	soldering, 10s	2
Thermal Resistance, junction-to-ambient (SO-8 surface mount)	θJA		150		°C/W	SO-8 surface mount	3

CAD (KiCad official)

Symbol: OPA2705UA
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOIC-8 (KiCad packages3D, STEP)
3D model files: opa2705ua-etched.step / opa2705ua-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); opa2705ua.step / opa2705ua.glb are the bare package body.

Provenance

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

Datasheet: Texas Instruments datasheet (16 pp, sha256 6ca42e8540461c2f, retrieved 2026-10-30, 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).

Datasheet PDF

OPA2705UA

Verified OPA2705UA

Verification log 1 record

3D Model

Symbol & Footprint

Schematic Symbol

PCB Footprint

Datasheet

README