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LM2901BQDRQ1

Texas Instruments · Comparators · SOIC-14

LM2901BQDRQ1 from Texas Instruments, in a SOIC-14. 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	OUT1	output	Output pin of comparator 2 as labeled in the table (open-collector output; the datasheet notes channel 1 and 2 names are transposed by some manufacturers).
2	OUT2	output	Output pin of comparator 1 as labeled in the table (open-collector output; the datasheet notes channel 1 and 2 names are transposed by some manufacturers).
3	VCC	power_in	Positive supply; LM2901B-Q1 operates from 2 V to 36 V.
4	IN2-	input	Negative input pin of comparator 1 as labeled in the table (channel naming may be transposed with channel 2).
5	IN2+	input	Positive input pin of comparator 1 as labeled in the table (channel naming may be transposed with channel 2).
6	IN1-	input	Negative input pin of comparator 2 as labeled in the table (channel naming may be transposed with channel 1).
7	IN1+	input	Positive input pin of comparator 2 as labeled in the table (channel naming may be transposed with channel 1).
8	IN3-	input	Negative input pin of comparator 3.
9	IN3+	input	Positive input pin of comparator 3.
10	IN4-	input	Negative input pin of comparator 4.
11	IN4+	input	Positive input pin of comparator 4.
12	GND	power_in	Negative supply (ground).
13	OUT4	output	Output pin of comparator 4 (open-collector output).
14	OUT3	output	Output pin of comparator 3 (open-collector output).

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SOIC-14
Category	Amplifiers/Comparators
Pins	14

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	-0.3		38	V	VS = (V+), (V-)	5
Differential input voltage	VID	-38		38	V	IN+ with respect to IN-	5
Input pins voltage (IN+, IN-)		-0.3		38	V		5
Current into input pins		-50			mA	IN+, IN-	5
Output pin voltage		-0.3		38	V		5
Output sink current				25	mA		5
Junction temperature	TJ			150	°C		5
Storage temperature	Tstg	-65		150	°C		5
Supply voltage	VS	2		36	V	VS = (V+), (V-)	6
Ambient temperature	TA	-40		125	°C	LM2901B-Q1	6
Junction-to-ambient thermal resistance	RθJA		111.2		°C/W	D (SOIC) 14 pins	6
Junction-to-case (top) thermal resistance	RθJC(top)		66.9		°C/W	D (SOIC) 14 pins	6
Junction-to-board thermal resistance	RθJB		67.8		°C/W	D (SOIC) 14 pins	6
Junction-to-top characterization parameter	ψJT		28		°C/W	D (SOIC) 14 pins	6
Junction-to-board characterization parameter	ψJB		67.4		°C/W	D (SOIC) 14 pins	6
Input offset voltage	VIO	-3.5	0.37	3.5	mV	VS = 5 to 36V	7
Input offset voltage over temperature	VIO	-5.5		5.5	mV	VS = 5 to 36V, TA = -40°C to +125°C	7
Input bias current	IB		-3.5	-25	nA		7
Input bias current over temperature	IB			-50	nA	TA = -40°C to +125°C	7
Input offset current	IOS	-25	0.5	25	nA		7
Input offset current over temperature	IOS	-50		50	nA	TA = -40°C to +125°C	7
Large signal differential voltage amplification	AVD	50	200		V/mV	VS = 15V, VO = 1.4V to 11.4V; RL ≥ 15k to (V+)	7
Low level output voltage	VOL		110	400	mV	ISINK ≤ 4mA, VID = -1V	7
Low level output voltage over temperature	VOL			550	mV	ISINK ≤ 4mA, VID = -1V, TA = -40°C to +125°C	7
High-level output leakage current	IOH-LKG		0.1	50	nA	(V+) = VO = 5V; VID = 1V	7
High-level output leakage current	IOH-LKG			100	nA	(V+) = VO = 36V; VID = 1V	7
Low level output current	IOL	6		21	mA	VOL = 1.5V; VID = -1V; VS = 5V	7
Quiescent current (all comparators)	IQ		0.8	1.2	mA	VS = 5V, no load	7
Quiescent current (all comparators)	IQ		1	1.6	mA	VS = 36V, no load, TA = -40°C to +125°C	7
Propagation delay time, high-to-low, small scale input	tresponse		1000		ns	Input overdrive = 5mV, Input step = 100mV	7
Propagation delay time, high-to-low, TTL input	tresponse		300		ns	TTL input with Vref = 1.4V	7

CAD (KiCad official)

Symbol: LM2901BQDRQ1
Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
3D model: SOIC-14 (KiCad packages3D, STEP)
3D model files: lm2901bqdrq1-etched.step / lm2901bqdrq1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm2901bqdrq1.step / lm2901bqdrq1.glb are the bare package body.

Provenance

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

Datasheet: Texas Instruments datasheet (35 pp, sha256 1a952a1b94f81bb7, retrieved 2026-10-26, 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-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