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LM2901BQDRQ1

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Texas Instruments Comparators, SOIC-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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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