component
LM2903AL1-SR
Public Made by Adomby adom
3PEAK Comparators, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownLM2903AL1-SR
3PEAK · Comparators · SOP-8
LM2903AL1-SR from 3PEAK, in a SOP-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 | Out A | output | Output of comparator A, an open-collector output that can be wired-AND connected with other open-collector outputs. |
| 2 | −In A | input | Inverting input of comparator A; the common-mode input voltage range is 0 to VCC − 1.5 V at 25°C. |
| 3 | +In A | input | Non-inverting input of comparator A; the common-mode input voltage range includes ground even on a single supply. |
| 4 | -VS | power_in | Negative power supply pin (ground in single-supply operation). |
| 5 | +In B | input | Non-inverting input of comparator B; the common-mode input voltage range includes ground even on a single supply. |
| 6 | -In B | input | Inverting input of comparator B; the common-mode input voltage range is 0 to VCC − 1.5 V at 25°C. |
| 7 | Out B | output | Output of comparator B, an open-collector output that can be wired-AND connected with other open-collector outputs. |
| 8 | +VS | power_in | Positive power supply pin; the supply range is 2.5 V to 36 V (single supply) or ±1.25 V to ±18 V (dual supplies). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | 3PEAK |
| Package | SOP-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 |
|---|---|---|---|---|---|---|---|
| Supply Voltage (+VS) − (−VS) | 42 | V | 6 | ||||
| Input Current: +IN, -IN | -20 | 20 | mA | 6 | |||
| Output Current: OUT | -20 | 20 | mA | 6 | |||
| Current at Supply Pins | -60 | 60 | mA | 6 | |||
| TJ Maximum Junction Temperature | TJ | 150 | °C | 6 | |||
| TA Operating Temperature Range | TA | -40 | 125 | °C | 6 | ||
| TSTG Storage Temperature Range | TSTG | -65 | 150 | °C | 6 | ||
| TL Lead Temperature (Soldering 10 sec) | TL | 260 | °C | Soldering 10 sec | 6 | ||
| ESD Human Body Model (minimum level) | HBM | 4 | kV | ANSI/ESDA/JEDEC JS-001 | 6 | ||
| ESD Charged Device Model (minimum level) | CDM | 2 | kV | ANSI/ESDA/JEDEC JS-002 | 6 | ||
| Supply Voltage VCC | VCC | 2.5 | 36 | V | TA = −40°C to 125°C | 7 | |
| Input Offset Voltage | VOS | -6 | 0.6 | 6 | mV | VCC = 5 V to 30 V, VCM = 0 V, VO = 1.4 V, TA = −40°C to 125°C | 7 |
| Input Bias Current | IB | 0.1 | 1 | nA | VDM = 0 V, VCM = 0 V | 7 | |
| Input Bias Current | IB | 1 | 10 | nA | VDM = 0 V, VCM = 0 V, TA = −40°C to 125°C | 7 | |
| Input Offset Current | IOS | 0.1 | 1 | nA | VDM = 0 V, VCM = 0 V | 7 | |
| Input Offset Current | IOS | 1 | 10 | nA | VDM = 0 V, VCM = 0 V, TA = −40°C to 125°C | 7 | |
| Common-Mode Input Voltage Range | VCM | 0 | V | 7 | |||
| Large-Signal Differential-Voltage Amplification | AVD | 50 | 400 | V/mV | VCC = 15 V, VO = 1.4 V to 11.4 V, RL ≥ 15 kΩ to VCC | 7 | |
| High-Level Output Current | IOH | 25 | 200 | nA | VOH = 5 V, VID = 1 V | 7 | |
| High-Level Output Current | IOH | 7 | μA | VCC = 36 V, VOH = 36 V, VID = 1 V, TA = −40°C to 125°C | 7 | ||
| Low-Level Output Voltage | VOL | 250 | 400 | mV | IOL = 4 mA, VID = −1 V | 7 | |
| Low-Level Output Voltage | VOL | 500 | mV | IOL = 4 mA, VID = −1 V, TA = −40°C to 125°C | 7 | ||
| Low-Level Output Current | IOL | 10 | mA | VOL = 1.5 V, VID = −1 V | 7 | ||
| Quiescent Current per Comparator | IQ | 150 | 300 | μA | VCC = 5 V | 7 | |
| Differential Input Current | IDiff | 50 | nA | VCC = 36 V, VDM = 36 V | 7 | ||
| Input Capacitance (differential mode) | CIN | 2.5 | pF | TA = 25°C, differential mode | 7 | ||
| Input Capacitance (common mode) | CIN | 5 | pF | TA = 25°C, common mode | 7 | ||
| Response Time (100-mV input step, 5-mV overdrive) | tRT | 2 | μs | RL connected to 5 V through 5.1 kΩ, CL = 15 pF, 100-mV input step with 5-mV overdrive | 7 | ||
| Response Time (TTL-level input step) | tRT | 0.5 | μs | RL connected to 5 V through 5.1 kΩ, CL = 15 pF, TTL-level input step | 7 | ||
| Junction-to-ambient thermal resistance (SOP8) | θJA | 158 | °C/W | SOP8 package | 6 | ||
| Junction-to-case thermal resistance (SOP8) | θJC | 43 | °C/W | SOP8 package | 6 |
CAD (KiCad official)
- Symbol:
LM2903AL1-SR - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
lm2903al1-sr-etched.step/lm2903al1-sr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm2903al1-sr.step/lm2903al1-sr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: 3PEAK datasheet (18 pp, sha256
1d91c99211e5009e, retrieved 2026-10-17, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).