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OPA2171AIDCUR

Texas Instruments · Operational Amplifier · VSSOP-8-0.5mm

OPA2171AIDCUR from Texas Instruments, in a VSSOP-8-0.5mm. 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	Channel A output, rail-to-rail, stable with capacitive loads up to 300pF and short-circuit current of +25/-35 mA.
2	-IN A	input	Channel A inverting input, with a common-mode range from (V-)-0.1V to (V+)-2V and input current limited to ±10 mA.
3	+IN A	input	Channel A non-inverting input, with a common-mode range from (V-)-0.1V to (V+)-2V and input current limited to ±10 mA.
4	V-	power_in	Negative supply or ground for single-supply use; total supply range is +2.7V to +36V (±1.35V to ±18V).
5	+IN B	input	Channel B non-inverting input, with a common-mode range from (V-)-0.1V to (V+)-2V and input current limited to ±10 mA.
6	-IN B	input	Channel B inverting input, with a common-mode range from (V-)-0.1V to (V+)-2V and input current limited to ±10 mA.
7	OUT B	output	Channel B output, rail-to-rail, stable with capacitive loads up to 300pF and short-circuit current of +25/-35 mA.
8	V+	power_in	Positive supply, +2.7V to +36V total supply range; a 0.1µF bypass capacitor to ground close to the pin is recommended.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	VSSOP-8-0.5mm
Category	Operational Amplifier/Comparator
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	-1.8	0.25	1.8	mV		3
Input offset voltage over temperature	VOS	-2	0.3	2	mV	over temperature range	3
Offset voltage drift	dVOS/dT	-2	0.3	2	µV/°C		3
Power-supply rejection ratio	PSRR	-3	1	3	µV/V	VS=+4V to +36V	3
Input bias current	IB	-15	8	15	pA		3
Input bias current over temperature	IB	-3.5		3.5	nA	over temperature range	3
Input offset current over temperature	IOS	-3.5		3.5	nA	over temperature range	3
Common-mode rejection ratio	CMRR	90	104		dB	VS=±2V, (V-)-0.1V<VCM<(V+)-2V	3
Common-mode rejection ratio	CMRR	104	120		dB	VS=±18V, (V-)-0.1V<VCM<(V+)-2V	3
Open-loop voltage gain	AOL	110	130		dB	VS=+4V to +36V, (V-)+0.35V<VO<(V+)-0.35V	3
Specified supply voltage range	VS	2.7		36	V		3
Quiescent current per amplifier	IQ		475	595	µA	IO=0A	3
Quiescent current per amplifier over temperature	IQ			650	µA	IO=0A, over temperature range	3
Specified temperature range		-40		125	°C		3
Operating temperature range		-55		150	°C		3
Supply voltage		-20		20	V		2
Signal input terminal current		-10		10	mA		2
Operating temperature		-55		150	°C		2
Storage temperature		-65		150	°C		2
Junction temperature				150	°C		2
ESD human body model	HBM			4	kV		2
ESD charged device model	CDM			750	V		2
Junction-to-ambient thermal resistance	θJA		175.2		°C/W	DCU (VSSOP) 8 pin	4
Junction-to-case (top) thermal resistance	θJC(top)		74.9		°C/W	DCU (VSSOP) 8 pin	4
Junction-to-board thermal resistance	θJB		22.2		°C/W	DCU (VSSOP) 8 pin	4
Junction-to-top characterization parameter	ψJT		1.6		°C/W	DCU (VSSOP) 8 pin	4
Junction-to-board characterization parameter	ψJB		22.8		°C/W	DCU (VSSOP) 8 pin	4
Input offset current	IOS		4		pA		3
Channel separation, DC			5		µV/V	DC	3
Input voltage noise			3		µVPP	f=0.1Hz to 10Hz	3
Input voltage noise density	en		25		nV/√Hz	f=100Hz	3
Input voltage noise density	en		14		nV/√Hz	f=1kHz	3
Gain-bandwidth product	GBP		3		MHz		3
Slew rate	SR		1.5		V/µs	G=+1	3
Settling time to 0.1%	tS		6		µs	VS=±18V, G=+1, 10V step	3
Settling time to 0.01%	tS		10		µs	VS=±18V, G=+1, 10V step	3
Overload recovery time			2		µs	VIN × gain > VS	3
Total harmonic distortion + noise	THD+N		0.0002		%	G=+1, f=1kHz, VO=3VRMS	3
Voltage output swing from rail	VO		30		mV	VS=5V, RL=10kΩ	3
Open-loop output resistance	RO		150		Ω	f=1MHz, IO=0A	3

CAD (KiCad official)

Symbol: OPA2171AIDCUR
Footprint: Package_SO:VSSOP-8_2.3x2mm_P0.5mm
3D model: VSSOP-8-0.5mm (KiCad packages3D, STEP)
3D model files: opa2171aidcur-etched.step / opa2171aidcur-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); opa2171aidcur.step / opa2171aidcur.glb are the bare package body.

Provenance

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

Datasheet: Texas Instruments datasheet (39 pp, sha256 8f797f9cda3323f1, retrieved 2026-10-27, 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