# HOPA2340UA

**HXY MOSFET** · Operational Amplifier · SOP-8

HOPA2340UA from HXY MOSFET, 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 | OUTA | output | Amplifier A output. |
| 2 | -INA | input | Amplifier A inverting input; voltage range can go from (VS- - 0.1 V) to (VS+ + 0.1 V). |
| 3 | +INA | input | Amplifier A non-inverting input; same voltage range as -IN, from (VS- - 0.1 V) to (VS+ + 0.1 V). |
| 4 | -VS | power_in | Negative supply, normally tied to ground, may be tied to another voltage as long as VS+ to VS- is 2.1 V to 5.5 V. |
| 5 | +INB | input | Amplifier B non-inverting input; same voltage range as -IN, from (VS- - 0.1 V) to (VS+ + 0.1 V). |
| 6 | -INB | input | Amplifier B inverting input; voltage range can go from (VS- - 0.1 V) to (VS+ + 0.1 V). |
| 7 | OUTB | output | Amplifier B output. |
| 8 | +VS | power_in | Positive supply, 2.1 V to 5.5 V; split supplies are possible as long as VS+ to VS- is between 2.1 V and 5.5 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | HXY MOSFET |
| 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 | VOS |  | 0.5 | 2 | mV |  | 3 |
| Input offset voltage over temperature | VOS |  |  | 3 | mV | over Temperature | 3 |
| Input bias current over temperature | IB |  |  | 200 | pA | over Temperature | 3 |
| Common-mode voltage range | VCM | -0.1 |  | 0.1 | V | rail-referenced: min VS- -0.1 V; max VS+ +0.1 V | 3 |
| Open-loop voltage gain | AVOL | 97 | 105 |  | dB | RL = 10kΩ, VO = 0.05 to 3.5 V | 3 |
| Open-loop voltage gain over temperature | AVOL | 87 |  |  | dB | RL = 10kΩ, VO = 0.05 to 3.5 V; over Temperature | 3 |
| Open-loop voltage gain | AVOL | 85 |  |  | dB | RL = 600Ω, VO = 0.15 to 3.5 V | 3 |
| Open-loop voltage gain over temperature | AVOL | 75 |  |  | dB | RL = 600Ω, VO = 0.15 to 3.5 V; over Temperature | 3 |
| High output voltage swing (headroom below VS+) | VOH |  | 12 | 15 | mV | RL = 10kΩ; VOH = VS+ minus value | 3 |
| High output voltage swing (headroom below VS+) | VOH |  | 250 | 300 | mV | RL = 600Ω; VOH = VS+ minus value | 3 |
| Low output voltage swing (headroom above VS-) | VOL |  | 9 | 12 | mV | RL = 10kΩ; VOL = VS- plus value | 3 |
| Low output voltage swing (headroom above VS-) | VOL |  | 155 | 190 | mV | RL = 600Ω; VOL = VS- plus value | 3 |
| Operating supply voltage | VS | 1.8 |  | 5.5 | V |  | 4 |
| Quiescent current per amplifier | IQ |  | 583 | 670 | μA | VS = 2.0V | 4 |
| Quiescent current per amplifier | IQ |  | 685 | 790 | μA | VS = 5.0V | 4 |
| Operating temperature range | TA | -40 |  | 125 | ℃ |  | 4 |
| Supply voltage VS+ to VS- | VS+ - VS- |  |  | 10 | V |  | 2 |
| Signal input terminal voltage | VIN | -0.5 |  | 0.5 | V | relative to rails: VS- -0.5 V to VS+ +0.5 V | 2 |
| Signal input terminal current | IIN | -20 |  | 20 | mA |  | 2 |
| Storage temperature range | TSTG | -65 |  | 150 | ℃ |  | 2 |
| Junction temperature | TJ |  |  | 160 | ℃ |  | 2 |
| Lead temperature range (soldering) | TLEAD |  |  | 260 | ℃ | soldering 10 sec | 2 |
| Electrostatic discharge HBM | VESD HBM | -5000 |  | 5000 | V |  | 2 |
| Electrostatic discharge CDM | VESD CDM | -2000 |  | 2000 | V |  | 2 |
| Electrostatic discharge MM | VESD MM | -250 |  | 250 | V |  | 2 |
| Input bias current | IB |  | 5 |  | pA |  | 3 |
| Package thermal resistance junction to ambient | θJA |  | 125 |  | ℃/W | SO-8 package (catalog SOP-8) | 4 |

## CAD (KiCad official)

- Symbol: `HOPA2340UA`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `hopa2340ua-etched.step` / `hopa2340ua-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `hopa2340ua.step` / `hopa2340ua.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [HXY MOSFET datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8602881292593737728) (17 pp, sha256 `dbf5ff091c3d0969`, retrieved 2026-10-18, 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/hopa2340ua-datasheet.pdf)