# LM2902A-SR

**3PEAK** · Operational Amplifier · SOP-14

LM2902A-SR from 3PEAK, 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 | Out A | output | Output of amplifier A, rail-to-rail swing. |
| 2 | -In A | input | Inverting input of amplifier A; common-mode range extends to V- and input current should be limited to 10mA if input exceeds supply by more than 300mV. |
| 3 | +In A | input | Non-inverting input of amplifier A; common-mode range extends to V- and input current should be limited to 10mA if input exceeds supply by more than 300mV. |
| 4 | +Vs | power_in | Positive supply; total supply (+VS)-(-VS) is 3V to 36V, absolute maximum 40V. |
| 5 | +In B | input | Non-inverting input of amplifier B; common-mode range extends to V-. |
| 6 | -In B | input | Inverting input of amplifier B; common-mode range extends to V-. |
| 7 | Out B | output | Output of amplifier B, rail-to-rail swing. |
| 8 | Out C | output | Output of amplifier C, rail-to-rail swing. |
| 9 | -In C | input | Inverting input of amplifier C; common-mode range extends to V-. |
| 10 | +In C | input | Non-inverting input of amplifier C; common-mode range extends to V-. |
| 11 | -Vs | power_in | Negative supply (ground in single-supply use); total supply (+VS)-(-VS) is 3V to 36V. |
| 12 | +In D | input | Non-inverting input of amplifier D; common-mode range extends to V-. |
| 13 | -In D | input | Inverting input of amplifier D; common-mode range extends to V-. |
| 14 | Out D | output | Output of amplifier D, rail-to-rail swing. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | 3PEAK |
| 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 |
|---|---|---|---|---|---|---|---|
| Supply Voltage, (+VS)-(-VS) |  |  |  | 40 | V |  | 4 |
| Input Current: +IN, -IN |  | -10 |  | 10 | mA | +IN, -IN pins (Note 2: input beyond supply by more than 300mV limits current to <10mA) | 4 |
| Maximum Junction Temperature |  |  |  | 150 | °C |  | 4 |
| Operating Temperature Range |  | -40 |  | 125 | °C |  | 4 |
| Storage Temperature Range |  | -65 |  | 150 | °C |  | 4 |
| Lead Temperature (Soldering, 10 sec) |  |  |  | 260 | °C | Soldering, 10 sec | 4 |
| Supply Voltage Range (+VS), (-VS) | VS | 3 |  | 36 | V |  | 5 |
| Quiescent Current per Amplifier | IQ |  | 110 | 200 | μA | VS = 30V | 5 |
| Quiescent Current per Amplifier | IQ |  |  | 250 | μA | -40 to 125°C | 5 |
| Quiescent Current per Amplifier | IQ |  | 100 | 150 | μA | VS = 5V | 5 |
| Quiescent Current per Amplifier | IQ |  |  | 200 | μA | -40 to 125°C | 5 |
| Power Supply Rejection Ratio | PSRR | 85 | 120 |  | dB | VS = 5V to 36V | 5 |
| Power Supply Rejection Ratio | PSRR | 80 |  |  | dB | -40 to 125°C | 5 |
| Input Offset Voltage | VOS | -3 | 0.1 | 3 | mV | VS = 30V, VCM = 0V to 28V | 5 |
| Input Offset Voltage | VOS | -5 |  | 5 | mV | -40 to 85°C | 5 |
| Input Offset Voltage | VOS | -6 |  | 6 | mV | -40 to 125°C | 5 |
| Input Bias Current | IB |  | 60 | 500 | pA |  | 5 |
| Input Bias Current | IB |  | 600 | 1000 | pA | -40 to 125°C | 5 |
| Input Offset Current | IOS |  | 60 | 500 | pA |  | 5 |
| Input Offset Current | IOS |  | 600 | 1000 | pA | -40 to 125°C | 5 |
| Different Input Current | IIN |  | 5 | 150 | nA | VS = 36V, VID = 36V | 5 |
| Different Input Current | IIN |  | 20 | 1000 | nA | VS = 36V, VID = 36V -40 to 125°C | 5 |
| Open-loop Voltage Gain | Av | 95 | 110 |  | dB |  | 5 |
| Open-loop Voltage Gain | Av | 90 |  |  | dB | -40 to 125°C | 5 |
| Common Mode Rejection Ratio | CMRR | 75 | 120 |  | dB | VCM = 0V to 28V | 5 |
| Common Mode Rejection Ratio | CMRR | 70 | 90 |  | dB | -40 to 125°C | 5 |
| Output Voltage Swing from Positive and Negative Rail |  |  | 200 | 300 | mV | RLOAD = 10kΩ to VS/2 | 5 |
| Output Voltage Swing from Positive and Negative Rail |  |  |  | 700 | mV | -40 to 125°C | 5 |
| Output Voltage Swing from Positive and Negative Rail |  |  | 1.1 | 1.3 | V | RLOAD = 2kΩ to VS/2 | 5 |
| Output Voltage Swing from Positive and Negative Rail |  |  |  | 2 | V | -40 to 125°C | 5 |
| Output Voltage Swing from Negative Rail |  |  | 5 | 10 | mV | VS = 5V, RLOAD = 10kΩ to 0V | 6 |
| Output Short-Circuit Current | ISC | 25 | 30 |  | mA |  | 6 |
| Output Short-Circuit Current | ISC | 15 |  |  | mA | -40 to 125°C | 6 |
| Thermal resistance, junction-to-ambient (14-Pin SOIC) | θJA |  | 120 |  | °C/W | Short traces connected to the leads (Note 3) | 4 |
| Thermal resistance, junction-to-case (14-Pin SOIC) | θJC |  | 36 |  | °C/W |  | 4 |

## CAD (KiCad official)

- Symbol: `LM2902A-SR`
- Footprint: `Package_SO:SOIC-14_3.9x8.7mm_P1.27mm`
- 3D model: SOP-14 (KiCad packages3D, STEP)
- 3D model files: `lm2902a-sr-etched.step` / `lm2902a-sr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm2902a-sr.step` / `lm2902a-sr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [3PEAK datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589808187768668160) (15 pp, sha256 `973ba5f69cb78d46`, retrieved 2026-10-17, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/lm2902a-sr-datasheet.pdf)