component

lm2903p

Public Unreviewed

by Ray

Texas Instruments Comparators, PDIP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.

componentop-amp-cmplm2903p
Overview Files Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity

3D Model

Open in new tab ↗
Loads on click. Unloads when scrolled away or the tab is hidden.
Contents

README

markdown

LM2903P

Texas Instruments · Comparators · PDIP-8

LM2903P from Texas Instruments, in a PDIP-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 1OUT output Comparator 1 open-collector output. Sinks up to ~6 mA (VOL ≈ 150 mV @ 4 mA, VID = -1 V); requires an external pull-up resistor to VCC (or another rail up to 36 V). May be wire-AND'd with other open-collector outputs.
2 1IN- input Comparator 1 inverting input. Common-mode range 0 V to VCC-1.5 V; typical input bias current 25 nA. When 1IN- > 1IN+, the 1OUT open-collector transistor conducts (output pulled low).
3 1IN+ input Comparator 1 non-inverting input. Common-mode range includes ground (0 V to VCC-1.5 V). Differential input voltage rating up to ±36 V.
4 GND power_in Device ground / negative supply return. In single-supply operation tied to 0 V; in dual-supply operation this is the V- rail. All voltages in the datasheet are referenced to this pin.
5 2IN+ input Comparator 2 non-inverting input. Common-mode range includes ground (0 V to VCC-1.5 V). Differential input voltage rating up to ±36 V.
6 2IN- input Comparator 2 inverting input. Common-mode range 0 V to VCC-1.5 V; typical input bias current 25 nA. When 2IN- > 2IN+, the 2OUT open-collector transistor conducts (output pulled low).
7 2OUT output Comparator 2 open-collector output. Sinks up to ~6 mA (VOL ≈ 150 mV @ 4 mA); requires an external pull-up resistor to VCC (or another rail up to 36 V). May be wire-AND'd with other open-collector outputs.
8 VCC power_in Positive supply. Single-supply range 2 V to 36 V (LM2903 tested to 30 V); dual-supply operation permitted as long as total is 2-36 V and VCC is at least 1.5 V above the input common-mode voltage. Typical supply current 0.4 mA per comparator, independent of VCC.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package PDIP-8
Category Op-amp/Cmp
Pins 8

Ordering variants

  • LM2903PP
  • LM2903PD
  • LM2903PDR
  • LM2903PDRG3
  • LM2903PPSR
  • LM2903PPWR
  • LM2903PPWRG3
  • LM2903PDGKR

CAD (KiCad official)

  • Symbol: LM2903P
  • Footprint: Package_DIP:DIP-8_W7.62mm
  • 3D model: PDIP-8 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Texas Instruments datasheet (None pp, sha256 e8887a387108a098, retrieved 2026-08-17, tier: manufacturer)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF

Symbol & Footprint

Schematic Symbol

Open full view ↗
Loads on click. Unloads when scrolled away or the tab is hidden.

PCB Footprint

Open full view ↗
Loads on click. Unloads when scrolled away or the tab is hidden.

Datasheet

Open in new tab ↗
Loads on click. Unloads when scrolled away or the tab is hidden.
Download PDF