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BA2901SF-E2
Public Made by Adomby adom
ROHM Semicon Comparators, SOP-14. 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
markdownBA2901SF-E2
ROHM Semicon · Comparators · SOP-14
BA2901SF-E2 from ROHM Semicon, in a SOP-14. 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 | OUT2 | output | Open-collector output of comparator channel 2, with ground-sense operation as stated for the device's inputs and outputs. |
| 2 | OUT1 | output | Open-collector output of comparator channel 1, with ground-sense operation as stated for the device's inputs and outputs. |
| 3 | VCC | power_in | Positive supply pin; the device operates from +2.0V to +36.0V single supply or ±1.0V to ±18.0V split supply, with 36V absolute maximum VCC-VEE. |
| 4 | -IN1 | input | Inverting input of comparator channel 1; the input common-mode range is (VEE-0.3)V to (VEE+36)V, and input current is limited to 10mA absolute maximum. |
| 5 | +IN1 | input | Non-inverting input of comparator channel 1; the input common-mode range is (VEE-0.3)V to (VEE+36)V, and input current is limited to 10mA absolute maximum. |
| 6 | -IN2 | input | Inverting input of comparator channel 2; the input common-mode range is (VEE-0.3)V to (VEE+36)V, and input current is limited to 10mA absolute maximum. |
| 7 | +IN2 | input | Non-inverting input of comparator channel 2; the input common-mode range is (VEE-0.3)V to (VEE+36)V, and input current is limited to 10mA absolute maximum. |
| 8 | -IN3 | input | Inverting input of comparator channel 3; the input common-mode range is (VEE-0.3)V to (VEE+36)V, and input current is limited to 10mA absolute maximum. |
| 9 | +IN3 | input | Non-inverting input of comparator channel 3; the input common-mode range is (VEE-0.3)V to (VEE+36)V, and input current is limited to 10mA absolute maximum. |
| 10 | -IN4 | input | Inverting input of comparator channel 4; the input common-mode range is (VEE-0.3)V to (VEE+36)V, and input current is limited to 10mA absolute maximum. |
| 11 | +IN4 | input | Non-inverting input of comparator channel 4; the input common-mode range is (VEE-0.3)V to (VEE+36)V, and input current is limited to 10mA absolute maximum. |
| 12 | VEE | power_in | Negative supply pin (ground in single-supply use); the input common-mode range is referenced to VEE, so inputs must stay above VEE-0.3V. |
| 13 | OUT4 | output | Open-collector output of comparator channel 4, with ground-sense operation as stated for the device's inputs and outputs. |
| 14 | OUT3 | output | Open-collector output of comparator channel 3, with ground-sense operation as stated for the device's inputs and outputs. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ROHM Semicon |
| Package | SOP-14 |
| Category | Amplifiers/Comparators |
| Pins | 14 |
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 | 10 | |
| Input Offset Voltage (Full range) | VIO | 15 | mV | VCC=5 to 36V, OUT=1.4V | 10 | ||
| Input Offset Current (25°C) | IIO | 5 | 50 | nA | OUT=1.4V | 10 | |
| Input Offset Current (Full range) | IIO | 200 | nA | 10 | |||
| Input Bias Current (25°C) | IB | 50 | 250 | nA | OUT=1.4V | 10 | |
| Input Bias Current (Full range) | IB | 500 | nA | OUT=1.4V | 10 | ||
| Input Common-mode Voltage Range (25°C) | VICM | 0 | V | 10 | |||
| Large Signal Voltage Gain (25°C) | AV | 25 | 100 | V/mV | VCC=15V, OUT=1.4 to 11.4V | 10 | |
| Large Signal Voltage Gain (25°C, dB) | AV | 88 | 100 | dB | RL=15kΩ, VRL=15V | 10 | |
| Supply Current (25°C) | ICC | 0.8 | 2 | mA | OUT=Open | 10 | |
| Supply Current (Full range) | ICC | 2.5 | mA | OUT=Open, VCC=36V | 10 | ||
| Output Sink Current (25°C) | ISINK | 6 | 16 | mA | +IN=0V, VIN=1V; OUT=1.5V | 10 | |
| Output Saturation Voltage (25°C) | VOL | 150 | 400 | mV | +IN=0V, -IN=1V | 10 | |
| Output Saturation Voltage (Full range) | VOL | 700 | mV | ISINK=4mA | 10 | ||
| Output Leakage Current (Full range) | ILEAK | 1 | μA | +IN=1V, -IN=0V OUT=36V | 10 | ||
| Supply Voltage (VCC-VEE) | VCC-VEE | 36 | V | 5 | |||
| Power Dissipation (SOP14) | PD | 0.61 | W | To use above TA=25°C reduce 4.9mW (Note 14,16) | 5 | ||
| Differential Input Voltage | VID | 36 | V | Note 17 | 5 | ||
| Input Current | II | -10 | mA | Note 18 | 5 | ||
| Storage Temperature Range | Tstg | -55 | 150 | °C | 5 | ||
| Maximum Junction Temperature | Tjmax | 150 | °C | 5 | |||
| Operating Supply Voltage (single supply) | Vopr | 2 | 36 | V | 5 | ||
| Operating Supply Voltage (split supply) | Vopr | 1 | 18 | V | ±1.0 to ±18.0 V split supply | 5 | |
| Operating Temperature Range | Topr | -40 | 105 | °C | BA2901S | 5 |
CAD (KiCad official)
- Symbol:
BA2901SF-E2 - Footprint:
Package_SO:SOIC-14_3.9x8.7mm_P1.27mm - 3D model: SOP-14 (KiCad packages3D, STEP)
- 3D model files:
ba2901sf-e2-etched.step/ba2901sf-e2-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ba2901sf-e2.step/ba2901sf-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).