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OPA1671IDBVT

Texas Instruments · Audio Amplifiers · SOT-23-5

OPA1671IDBVT from Texas Instruments, in a SOT-23-5. 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	output	Amplifier output; the datasheet gives no output-swing limit in the pin table, but the output is rail-to-rail with a class AB stage able to drive loads of 10 kΩ or less connected between V+ and ground.
2	V-	power_in	Negative (lowest) power supply; the device operates from a total supply of 1.7 V to 5.5 V, VS = (V+) - (V-), with an absolute maximum of 6 V.
3	+IN	input	Noninverting input; the common-mode range is rail-to-rail, extending from (V-) to (V+), and input current should be limited to 10 mA if the input exceeds the supply rails.
4	-IN	input	Inverting input; the common-mode range is rail-to-rail, extending from (V-) to (V+), and input current should be limited to 10 mA if the input exceeds the supply rails.
5	V+	power_in	Positive (highest) power supply; the device operates from a total supply of 1.7 V to 5.5 V, VS = (V+) - (V-), with an absolute maximum of 6 V.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SOT-23-5
Category	Amplifiers/Comparators
Pins	5

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, VS = (V+) – (V–)	VS			6	V	VS = (V+) – (V–)	4
Input voltage		-0.3		0.3	V	Printed as (V–) –0.3 min and (V+) +0.3 max; offsets are relative to the rails	4
Operating temperature, TA	TA	-55		150	°C		4
Storage temperature, Tstg	Tstg	-65		150	°C		4
Supply voltage, VS = (V+) – (V–)	VS	1.7		5.5	V	VS = (V+) – (V–); parenthesized (±0.85) to (±2.75) V	4
Specified temperature, TA	TA	-40		125	°C		4
Input offset voltage	VOS	-1.6		1.6	mV	VCM = (V+)	5
Input offset voltage	VOS	-1.25	0.25	1.25	mV		5
Input offset voltage drift	dVOS/dT	-2.2	0.3	2.2	μV/°C	TA = –40°C to 125°C	5
Input offset voltage versus power supply	PSRR	-130	30	130	μV/V	VCM = (V–)	5
Common-mode rejection ratio	CMRR	74	91		dB	VS = 1.7 V, (V–) < VCM < (V+) – 1.25 V	5
Common-mode rejection ratio	CMRR	80	96		dB	VS = 5.5 V, (V–) < VCM < (V+) – 1.25 V	5
Common-mode rejection ratio	CMRR	60	88		dB	VS = 1.7 V, VCM = 0 V to 1.7 V	5
Common-mode rejection ratio	CMRR	68	102		dB	VS = 5.5 V, VCM = 0 V to 5.5 V	5
Open-loop voltage gain	AOL	97	113		dB	(V–) + 50 mV < VO < (V+) – 50 mV, RL = 10 kΩ	5
Open-loop voltage gain	AOL	106			dB	TA = –40°C to 125°C	5
Open-loop voltage gain	AOL	97	112		dB	(V–) + 200 mV < VO < (V+) – 200 mV, RL = 2 kΩ	5
Open-loop voltage gain	AOL	105			dB	TA = –40°C to 125°C	5
Voltage output swing from rail			10	20	mV	VS = 5.5 V, RL = 10 kΩ	6
Quiescent current per amplifier	IQ		0.94	1.3	mA	IO = 0 mA	6
Quiescent current per amplifier	IQ			1.4	mA	IO = 0 mA, TA = –40°C to 125°C	6
Junction-to-ambient thermal resistance, DBV (SOT-23)	RθJA		187.1		°C/W	DBV (SOT-23), 5 pins	4
Junction-to-case (top) thermal resistance, DBV (SOT-23)	RθJC(top)		107.4		°C/W	DBV (SOT-23), 5 pins	4
Junction-to-board thermal resistance, DBV (SOT-23)	RθJB		57.5		°C/W	DBV (SOT-23), 5 pins	4
Junction-to-top characterization parameter, DBV (SOT-23)	ΨJT		33.5		°C/W	DBV (SOT-23), 5 pins	4
Junction-to-board characterization parameter, DBV (SOT-23)	ΨJB		57.1		°C/W	DBV (SOT-23), 5 pins	4

CAD (KiCad official)

Symbol: OPA1671IDBVT
Footprint: Package_TO_SOT_SMD:SOT-23-5
3D model: SOT-23-5 (KiCad packages3D, STEP)
3D model files: opa1671idbvt-etched.step / opa1671idbvt-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); opa1671idbvt.step / opa1671idbvt.glb are the bare package body.

Provenance

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

Datasheet: Texas Instruments datasheet (32 pp, sha256 cec326328ce8e925, retrieved 2026-10-10, tier: lcsc)
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-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