component
BA2903F-E2
Public Made by Adomby adom
ROHM Semicon 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
markdownBA2903F-E2
ROHM Semicon · Comparators · SOP-8
BA2903F-E2 from ROHM Semicon, 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 | OUT1 | output | Channel 1 comparator output, which is an open-collector output per the datasheet features list. |
| 2 | -IN1 | input | Channel 1 inverting input, ground-sense operated, with common-mode range (VEE-0.3) V to (VEE+36) V and input current limited to -10 mA absolute maximum. |
| 3 | +IN1 | input | Channel 1 non-inverting input, ground-sense operated, with common-mode range (VEE-0.3) V to (VEE+36) V and input current limited to -10 mA absolute maximum. |
| 4 | VEE | power_in | Negative supply pin; operating supply is +2.0 V to +36.0 V single supply or ±1.0 V to ±18.0 V split supply, with VCC-VEE absolute maximum of +36 V. |
| 5 | +IN2 | input | Channel 2 non-inverting input, ground-sense operated, with common-mode range (VEE-0.3) V to (VEE+36) V and input current limited to -10 mA absolute maximum. |
| 6 | -IN2 | input | Channel 2 inverting input, ground-sense operated, with common-mode range (VEE-0.3) V to (VEE+36) V and input current limited to -10 mA absolute maximum. |
| 7 | OUT2 | output | Channel 2 comparator output, which is an open-collector output per the datasheet features list. |
| 8 | VCC | power_in | Positive supply pin; operating supply is +2.0 V to +36.0 V single supply or ±1.0 V to ±18.0 V split supply, with VCC-VEE absolute maximum of +36 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ROHM Semicon |
| 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 |
|---|---|---|---|---|---|---|---|
| Input offset voltage (25°C) | VIO | 2 | 7 | mV | OUT=1.4V | 8 | |
| Input offset voltage (full range -40°C to +125°C) | VIO | 15 | mV | VCC=5 to 36V, OUT=1.4V | 8 | ||
| Input offset current (25°C) | IIO | 5 | 50 | nA | OUT=1.4V | 8 | |
| Input offset current (full range -40°C to +125°C) | IIO | 200 | nA | 8 | |||
| Input bias current (25°C) | IB | 50 | 250 | nA | OUT=1.4V | 8 | |
| Input bias current (full range -40°C to +125°C) | IB | 500 | nA | 8 | |||
| Input common-mode voltage range (25°C; max printed as VCC-1.5 V) | VICM | 0 | V | 8 | |||
| Large signal voltage gain (25°C) | AV | 25 | 100 | V/mV | VCC=15V, OUT=1.4 to 11.4V | 8 | |
| Large signal voltage gain (25°C) | AV | 88 | 100 | dB | RL=15kΩ, VRL=15V | 8 | |
| Supply current (25°C) | ICC | 0.6 | 1 | mA | OUT=Open | 8 | |
| Supply current (full range -40°C to +125°C) | ICC | 2.5 | mA | OUT=Open, VCC=36V | 8 | ||
| Output sink current (25°C) | ISINK | 6 | 16 | mA | +IN=0V, -IN=1V OUT=1.5V | 8 | |
| Output saturation voltage, low level output (25°C) | VOL | 150 | 400 | mV | +IN=0V, -IN= 1V | 8 | |
| Output saturation voltage, low level output (full range -40°C to +125°C) | VOL | 700 | mV | ISINK=4mA | 8 | ||
| Output leakage current, high level output (full range -40°C to +125°C) | ILEAK | 1 | μA | +IN=1V, -IN=0V OUT=36V | 8 | ||
| Supply voltage (VCC-VEE) | VCC-VEE | 36 | V | 5 | |||
| Power dissipation (SOP8) | PD | 0.77 | W | SOP8, Note 11,16: reduce 6.2mW above TA=25°C | 5 | ||
| Differential input voltage | VID | 36 | V | Note 17 | 5 | ||
| Input common-mode voltage range | VICM | 36 | V | Referenced to VEE; printed as (VEE-0.3) to (VEE+36) | 5 | ||
| Input current | II | -10 | mA | Note 18 | 5 | ||
| Operating supply voltage (single supply) | Vopr | 2 | 36 | V | 5 | ||
| Operating supply voltage (split supply) | Vopr | 1 | 18 | V | Split supply, ±1.0 to ±18.0 V | 5 | |
| Operating temperature range (BA2903xxx) | Topr | -40 | 125 | °C | 5 | ||
| Storage temperature range | Tstg | -55 | 150 | °C | 5 | ||
| Maximum junction temperature | Tjmax | 150 | °C | 5 |
CAD (KiCad official)
- Symbol:
BA2903F-E2 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
ba2903f-e2-etched.step/ba2903f-e2-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ba2903f-e2.step/ba2903f-e2.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ROHM Semicon datasheet (59 pp, sha256
d03140fa0ae29b4f, retrieved 2026-10-18, 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).