# LM2904XS8G

**SGMICRO** · Operational Amplifier · SOIC-8

LM2904XS8G from SGMICRO, in a SOIC-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 | OUTA | output | Output of amplifier A; the output swing is limited to VOL of 190mV max and VOH of 60mV typ at RL = 10kΩ. |
| 2 | -INA | input | Inverting input of amplifier A; the common mode input range is -0.1V to VS - 1.5V, and if either input is below -0.3V its input current should be limited to 1mA. |
| 3 | +INA | input | Non-inverting input of amplifier A; the common mode input range is -0.1V to VS - 1.5V, and inputs may exceed VS up to the maximum VS without damage. |
| 4 | -VS | power_in | Negative supply rail, which is ground in single-supply operation; the valid supply span is 3V to 32V, or ±1.5V to ±16V for dual supplies. |
| 5 | +INB | input | Non-inverting input of amplifier B; the common mode input range is -0.1V to VS - 1.5V, and inputs may exceed VS up to the maximum VS without damage. |
| 6 | -INB | input | Inverting input of amplifier B; the common mode input range is -0.1V to VS - 1.5V, and if either input is below -0.3V its input current should be limited to 1mA. |
| 7 | OUTB | output | Output of amplifier B; the output swing is limited to VOL of 190mV max and VOH of 60mV typ at RL = 10kΩ. |
| 8 | +VS | power_in | Positive supply rail; the operating voltage range is 3V to 32V, with absolute maximum supply voltage of 34V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | SGMICRO |
| Package | SOIC-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 | -0.3 |  | 34 | V |  | 2 |
| Differential Input Voltage | VID | -32 |  | 32 | V |  | 2 |
| Input Voltage (Either Input) |  | -0.3 |  | 32 | V |  | 2 |
| Junction Temperature |  |  |  | 150 | ℃ |  | 2 |
| Storage Temperature Range |  | -65 |  | 150 | ℃ |  | 2 |
| Lead Temperature (Soldering) |  |  |  | 260 | ℃ | Soldering, 10s | 2 |
| Input Common Mode Voltage Range | VCM | -0.1 |  |  | V | Maximum printed as VS - 1.5V (not numeric) | 2 |
| Operating Temperature Range |  | -40 |  | 125 | ℃ |  | 2 |
| Input Offset Voltage | VOS |  | 1.2 | 5.8 | mV | +25℃ | 3 |
| Input Offset Voltage | VOS |  |  | 6.8 | mV | Full, -40℃ to +125℃ | 3 |
| Input Bias Current | IB |  | 10 | 160 | pA | VS = 32V, VCM = VS/2, +25℃ | 3 |
| Input Offset Current | IOS |  | 10 | 100 | pA | VS = 32V, VCM = VS/2, +25℃ | 3 |
| Input Common Mode Voltage Range | VCM | -0.1 |  |  | V | Full, -40℃ to +125℃; maximum printed as VS - 1.5V (not numeric) | 3 |
| Common Mode Rejection Ratio | CMRR | 82 | 118 |  | dB | -0.1V < VCM < VS - 1.5V, +25℃ | 3 |
| Common Mode Rejection Ratio | CMRR | 72 |  |  | dB | -0.1V < VCM < VS - 1.5V, Full, -40℃ to +125℃ | 3 |
| Open-Loop Voltage Gain | AOL | 92 | 111 |  | dB | RL = 10kΩ to VS/2, +25℃ | 3 |
| Open-Loop Voltage Gain | AOL | 83 |  |  | dB | RL = 10kΩ to VS/2, Full, -40℃ to +125℃ | 3 |
| High-Level Output Voltage | VOH |  | 42 | 60 | mV | RL = 10kΩ, +25℃ | 3 |
| High-Level Output Voltage | VOH |  |  | 80 | mV | RL = 10kΩ, Full, -40℃ to +125℃ | 3 |
| Low-Level Output Voltage | VOL |  | 110 | 190 | mV | RL = 10kΩ, +25℃ | 3 |
| Low-Level Output Voltage | VOL |  |  | 240 | mV | RL = 10kΩ, Full, -40℃ to +125℃ | 3 |
| Output Short-Circuit Current | ISC |  | 12 | 18 | mA | +25℃ | 3 |
| Operating Voltage Range | VS | 3 |  | 32 | V | Full, -40℃ to +125℃ | 3 |
| Quiescent Current | IQ |  | 440 | 680 | μA | IOUT = 0, +25℃ | 3 |
| Quiescent Current | IQ |  |  | 950 | μA | IOUT = 0, Full, -40℃ to +125℃ | 3 |
| Power Supply Rejection Ratio | PSRR | 102 | 122 |  | dB | +25℃ | 3 |
| Power Supply Rejection Ratio | PSRR | 98 |  |  | dB | Full, -40℃ to +125℃ | 3 |

## CAD (KiCad official)

- Symbol: `LM2904XS8G`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `lm2904xs8g-etched.step` / `lm2904xs8g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm2904xs8g.step` / `lm2904xs8g.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [SGMICRO datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589041709723865088) (20 pp, sha256 `faa597edd9a12753`, retrieved 2026-10-17, 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/lm2904xs8g-datasheet.pdf)