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LM2903QDRG4Q1

Public Made by Adom

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Texas Instruments Comparators, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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LM2903QDRG4Q1

Texas Instruments · Comparators · SOIC-8

LM2903QDRG4Q1 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 1OUT output Output pin of comparator 1 (open-collector output, may be tied to other open-collector outputs).
2 1IN- input Negative input pin of comparator 1.
3 1IN+ input Positive input pin of comparator 1.
4 GND power_in Ground.
5 2IN+ input Positive input pin of comparator 2.
6 2IN- input Negative input pin of comparator 2.
7 2OUT output Output pin of comparator 2 (open-collector output, may be tied to other open-collector outputs).
8 VCC power_in Positive supply.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-8
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 VIO 2 7 mV VO=1.4V, VIC=VIC(min), VCC=5V to MAX, non-A devices, 25°C 9
Input offset voltage, full range VIO 15 mV VO=1.4V, VIC=VIC(min), VCC=5V to MAX, non-A devices, full range 9
Input offset current IIO 5 50 nA VO=1.4V, 25°C 9
Input offset current, full range IIO 200 nA VO=1.4V, full range 9
Input bias current IIB -25 -250 nA VO=1.4V, 25°C 9
Input bias current, full range IIB -500 nA VO=1.4V, full range 9
Large-signal differential-voltage amplification AVD 25 100 V/mV VCC=15V, VO=1.4V to 11.4V, RL≥15kΩ to VCC, 25°C 9
High-level output current IOH 0.1 50 nA VOH=5V, VID=1V, 25°C 9
High-level output current, full range IOH 1 µA VOH=VCC MAX, VID=1V, full range 9
Low-level output voltage VOL 150 400 mV IOL=4mA, VID=-1V, 25°C 9
Low-level output voltage, full range VOL 700 mV IOL=4mA, VID=-1V, full range 9
Low-level output current IOL 6 mA VOL=1.5V, VID=-1V, 25°C 9
Supply current ICC 0.8 1 mA RL=∞, VCC=5V, 25°C 9
Supply current, full range ICC 2.5 mA RL=∞, VCC=MAX, full range 9
Supply voltage VCC 36 V 5
Differential input voltage VID -36 36 V 5
Input voltage range (either input) VI -0.3 36 V 5
Output voltage VO 36 V 5
Output current IO 20 mA 5
Operating virtual-junction temperature TJ 150 °C 5
Storage temperature range Tstg -65 150 °C LM2903-Q1 only 5
ESD HBM V(ESD) -1000 1000 V Human body model, AEC Q100-002 5
ESD CDM V(ESD) -750 750 V Charged device model, AEC Q100-011, all pins 5
Supply voltage (non-V devices) VCC 2 30 V 6
Junction temperature TJ -40 125 °C 6
Junction-to-ambient thermal resistance RθJA 126 °C/W D (SOIC), 8 pins 6
Junction-to-case (top) thermal resistance RθJC(top) 74.2 °C/W D (SOIC), 8 pins 6
Junction-to-board thermal resistance RθJB 66.4 °C/W D (SOIC), 8 pins 6
Junction-to-top characterization parameter ψJT 25.4 °C/W D (SOIC), 8 pins 6
Junction-to-board characterization parameter ψJB 65.9 °C/W D (SOIC), 8 pins 6
Response time, 100-mV step with 5-mV overdrive 1.3 µs VCC=5V, TA=25°C, RL to 5V through 5.1kΩ, CL=15pF 9
Response time, TTL-level input step 0.3 µs VCC=5V, TA=25°C, RL to 5V through 5.1kΩ, CL=15pF 9

CAD (KiCad official)

  • Symbol: LM2903QDRG4Q1
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: lm2903qdrg4q1-etched.step / lm2903qdrg4q1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm2903qdrg4q1.step / lm2903qdrg4q1.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (45 pp, sha256 3eee41ed36c06a12, 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