# BA2904YF-MGE2

**ROHM Semicon** · Operational Amplifier · SOP-8

BA2904YF-MGE2 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 | Output of the channel 1 operational amplifier. |
| 2 | -IN1 | input | Inverting input of channel 1; the input common-mode voltage range is (VEE-0.3) V to (VEE+36) V per the absolute maximum ratings. |
| 3 | +IN1 | input | Non-inverting input of channel 1; the input common-mode range includes ground and is limited to (VEE-0.3) V to (VEE+36) V. |
| 4 | VEE | power_in | Negative supply pin; operating supply voltage VCC-VEE is +3.0 V to +36 V (single supply) or ±1.5 V to ±18 V (dual supply). |
| 5 | +IN2 | input | Non-inverting input of channel 2; the input common-mode range includes ground and is limited to (VEE-0.3) V to (VEE+36) V. |
| 6 | -IN2 | input | Inverting input of channel 2; the input common-mode voltage range is (VEE-0.3) V to (VEE+36) V per the absolute maximum ratings. |
| 7 | OUT2 | output | Output of the channel 2 operational amplifier. |
| 8 | VCC | power_in | Positive supply pin; absolute maximum supply voltage VCC-VEE is +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 | EK=-1.4V | 4 |
| Input Offset Voltage (Full range) | VIO |  |  | 10 | mV | VCC=5 to 30V, EK=-1.4V | 4 |
| Input Offset Voltage Drift | △VIO/△T | -7 |  | 7 | μV/°C | EK=-1.4V | 4 |
| Input Offset Current (25°C) | IIO |  | 2 | 50 | nA | EK=-1.4V | 4 |
| Input Offset Current (Full range) | IIO |  |  | 200 | nA | EK=-1.4V | 4 |
| Input Offset Current Drift | ΔIIO/ΔT | -10 |  | 10 | pA/°C | EK=-1.4V | 4 |
| Input Bias Current (25°C) | IB |  | 20 | 250 | nA | EK=-1.4V | 4 |
| Input Bias Current (Full range) | IB |  |  | 250 | nA | EK=-1.4V | 4 |
| Supply Current (25°C) | ICC |  | 0.5 | 1.2 | mA | RL=∞, All Op-Amps | 4 |
| Supply Current (Full range) | ICC |  |  | 2 | mA | RL=∞, All Op-Amps | 4 |
| Maximum Output Voltage High (25°C) | VOH | 3.5 |  |  | V | RL=2kΩ | 4 |
| Maximum Output Voltage High (Full range) | VOH | 27 | 28 |  | V | VCC=30V, RL=10kΩ | 4 |
| Maximum Output Voltage Low (Full range) | VOL |  | 5 | 20 | mV | RL=∞, All Op-Amps | 4 |
| Large Signal Voltage Gain (25°C) | AV | 25 | 100 |  | V/mV | RL≥2kΩ, VCC=15V; EK=-1.4V to -11.4V | 4 |
| Input Common-mode Voltage Range (25°C) | VICM | 0 |  |  | V | (VCC-VEE)=5V; EK=VEE-1.4V | 4 |
| Common-mode Rejection Ratio (25°C) | CMRR | 50 | 80 |  | dB | EK=-1.4V | 4 |
| Power Supply Rejection Ratio (25°C) | PSRR | 65 | 100 |  | dB | VCC=5 to 30V | 4 |
| Output Source Current (25°C) | ISOURCE | 20 | 30 |  | mA | +IN=1V, -IN=0V | 4 |
| Output Source Current (Full range) | ISOURCE | 10 |  |  | mA | OUT=0V, Short Current | 4 |
| Output Sink Current (25°C) | ISINK | 10 | 20 |  | mA | +IN=0V, -IN=1V | 4 |
| Output Sink Current (Full range) | ISINK | 2 |  |  | mA | OUT=5V, Short Current | 4 |
| Output Sink Current (25°C, OUT=200mV) | ISINK | 12 | 40 |  | μA | +IN=0V, -IN=1V, OUT=200mV | 4 |
| Absolute Maximum Supply Voltage | VCC-VEE |  |  | 36 | V |  | 3 |
| Power Dissipation SOP8 | PD |  |  | 0.77 | W | SOP8 (Note 1,6): reduce 6.2mW/°C above TA=25°C; FR4 PCB 70mm×70mm×1.6mm | 3 |
| Differential Input Voltage | VID |  |  | 36 | V | Note 7 | 3 |
| Input Current | II | -10 |  |  | mA | Note 8 | 3 |
| Operating Supply Voltage | Vopr | 3 |  | 36 | V | (±1.5 to ±18) as printed | 3 |
| Operating Temperature Range | Topr | -40 |  | 125 | °C |  | 3 |
| Storage Temperature Range | Tstg | -55 |  | 150 | °C |  | 3 |
| Maximum Junction Temperature | TJmax |  |  | 150 | °C |  | 3 |
| Slew Rate (25°C) | SR |  | 0.2 |  | V/μs | VCC=15V, AV=0dB, RL=2kΩ, CL=100pF | 4 |
| Gain Bandwidth Product (25°C) | GBW |  | 0.5 |  | MHz | VCC=30V, RL=2kΩ, CL=100pF | 4 |
| Input Referred Noise Voltage (25°C) | VN |  | 40 |  | nV/√Hz | VCC=15V, VEE=-15V, AV=40dB, VICM=0V, RS=100Ω, f=1kHz | 4 |
| Channel Separation (25°C) | CS |  | 120 |  | dB | AV=40dB, f=1kHz, OUT=0.5Vrms | 4 |

## CAD (KiCad official)

- Symbol: `BA2904YF-MGE2`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `ba2904yf-mge2-etched.step` / `ba2904yf-mge2-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ba2904yf-mge2.step` / `ba2904yf-mge2.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [ROHM Semicon datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589880983073169408) (34 pp, sha256 `dccbee3898b44306`, 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](docs/ba2904yf-mge2-datasheet.pdf)