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LM2903AQS-13

Public Made by Adom

by adom

Diodes Incorporated Comparators, SO-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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LM2903AQS-13

Diodes Incorporated · Comparators · SO-8

LM2903AQS-13 from Diodes Incorporated, in a SO-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 Channel 1 output, an uncommitted NPN collector (grounded emitter) that needs an external pull-up to any voltage within the permitted supply range, or can be used as a switch to ground.
2 1IN- input Channel 1 inverting input; the common-mode input range is 0 V to VCC - 1.5 V at 25°C and the input must not go more than 0.3 V below ground.
3 1IN+ input Channel 1 non-inverting input; it has the same common-mode limits as the inverting input, and either input can go to +36 V without damage.
4 GND power_in Ground pin; the device is specified with GND = 0 V.
5 2IN+ input Channel 2 non-inverting input; it has the same common-mode limits as the other inputs (0 V to VCC - 1.5 V at 25°C, not below -0.3 V).
6 2IN- input Channel 2 inverting input; it has the same common-mode limits as the other inputs (0 V to VCC - 1.5 V at 25°C, not below -0.3 V).
7 2OUT output Channel 2 output, an uncommitted NPN collector (grounded emitter) that needs an external pull-up to any voltage within the permitted supply range, or can be used as a switch to ground.
8 VCC power_in Chip supply voltage; 2 V to 36 V single supply, or ±1 V to ±18 V dual supplies.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SO-8
Category Amplifiers/Comparators
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 Voltage VIN -0.3 36 V 3
Ambient Temperature Range TA -40 125 °C 3
Junction Temperature Range TJ -40 125 °C 3
Single Supply Voltage VCC 2 36 V Single supply 3
Dual Supply Voltage VCC 1 18 V Dual supply, printed as ±1 V to ±18 V 3
Operating Temperature Range TA -40 125 °C 3
Storage Temperature Range TST -65 150 °C 3
ESD Human Body Model Protection, SO-8 HBM 500 V Human body model, 1.5kΩ in series with 100pF (Note 7) 3
Input Common-Mode Voltage Range VCMR 0 V VCC = 30V (Note 12); TA = +25°C; upper limit printed as VCC -1.5 (Full Range: VCC -2) 5
Input Common-Mode Voltage Range (Full Range) VCMR 0 V VCC = 30V (Note 12); Full Range; upper limit printed as VCC-2 5
Voltage Gain AV 50 200 V/mV VCC = 15V, VOUT = 1V to 11V, RL ≥ 15kΩ, TA = +25°C 5
Output Sink Current IO(SINK) 6 16 mA VIN− = 1V, VIN+ = 0, VO ≤ 1.5V, TA = +25°C 5
Differential Input Voltage VID 36 V Full Range; All VIN ≥ 0V (or V- if used) (Note 14) 5
Supply Voltage (absolute) VCC 36 V 3
Differential Input Voltage (absolute) VID 36 V 3
Input Current IIN 50 mA VIN < -0.3V 3
Output Voltage VO 36 V 3
Output Current IO 20 mA 3
Operating Junction Temperature TJ 150 °C 3
Lead Temperature (Soldering, 10 seconds) TLEAD 260 °C Soldering, 10 seconds 3
Package Thermal Impedance, SO-8 θJA 150 °C/W SO-8 package (Note 6) 3
Input Offset Voltage, A-Suffix Device VIO 1 2 mV VIC = VCMR Min, VO = 1.4V, VCC = 5V to 30V (Note 10); TA = +25°C 5
Input Offset Voltage, A-Suffix Device (Full Range) VIO 4 mV VIC = VCMR Min, VO = 1.4V, VCC = 5V to 30V (Note 10); Full Range 5
Input Bias Current IB 25 250 nA IIN+ or IIN− with OUT in Linear Range, VCM = 0V (Note 11); TA = +25°C 5
Input Bias Current (Full Range) IB 500 nA IIN+ or IIN− with OUT in Linear Range, VCM = 0V (Note 11); Full Range 5
Input Offset Current IIO 5 50 nA IIN+ - IIN−, VCM = 0V; TA = +25°C 5
Input Offset Current (Full Range) IIO 200 nA IIN+ - IIN−, VCM = 0V; Full Range 5
Supply Current, VCC = 30V ICC 0.7 1.7 mA RL = ∞ on Both Channels, VCC = 30V; TA = +25°C 5
Supply Current, VCC = 30V (Full Range) ICC 3 mA RL = ∞ on Both Channels, VCC = 30V; Full Range 5
Supply Current, VCC = 5V ICC 0.6 1 mA RL = ∞ on Both Channels, VCC = 5V; TA = +25°C 5
Supply Current, VCC = 5V (Full Range) ICC 2 mA RL = ∞ on Both Channels, VCC = 5V; Full Range 5
Saturation Voltage, A-Suffix Device VSAT 200 400 mV VIN− = 1V, VIN+ = 0, ISINK ≤ 4mA; TA = +25°C 5
Saturation Voltage, A-Suffix Device (Full Range) VSAT 700 mV VIN− = 1V, VIN+ = 0, ISINK ≤ 4mA; Full Range 5
Output Leakage Current (Full Range) IO(LEAK) 1 µA VIN− = 0V, VIN+ = 1, VO = 30V; Full Range 5

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts tin • Terminals: Finish, Matte Tin Plated Leads, Solderable per MIL-STD-202, Method 208 • Weight: 19

CAD (KiCad official)

  • Symbol: LM2903AQS-13
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SO-8 (KiCad packages3D, STEP)
  • 3D model files: lm2903aqs-13-etched.step / lm2903aqs-13-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm2903aqs-13.step / lm2903aqs-13.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (20 pp, sha256 e45c666b30bd3a44, retrieved 2026-10-19, tier: lcsc)
  • 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