# HOPA2348AIDR

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

HOPA2348AIDR 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, rail-to-rail output swing into heavy loads. |
| 2 | -INA | input | Amplifier A inverting input; voltage range can go from (VS- − 0.2V) to (VS+ + 0.2V). |
| 3 | +INA | input | Amplifier A non-inverting input; has the same voltage range as -IN, (VS- − 0.2V) to (VS+ + 0.2V). |
| 4 | -VS | power_in | Negative supply, normally tied to ground; the voltage between VS+ and VS- must be 2.1V to 5.5V, and if not grounded it should be bypassed with 0.1μF close to the part. |
| 5 | +INB | input | Amplifier B non-inverting input; has the same voltage range as -IN, (VS- − 0.2V) to (VS+ + 0.2V). |
| 6 | -INB | input | Amplifier B inverting input; voltage range can go from (VS- − 0.2V) to (VS+ + 0.2V). |
| 7 | OUTB | output | Amplifier B output, rail-to-rail output swing into heavy loads. |
| 8 | +VS | power_in | Positive supply, 2.1V to 5.5V (VS+ to VS- must be 2.1V to 5.5V, split supplies possible), bypass with 0.1μF close to the part. |

## 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 | -2.5 | 0.5 | 2.5 | mV |  | 3 |
| Input offset voltage over temperature | VOS | -2.8 |  | 2.8 | mV | over Temperature | 3 |
| Offset voltage drift | VOSTC |  | 2 |  | μV/℃ | over Temperature | 3 |
| Input bias current | IB |  | 1 |  | pA |  | 3 |
| Input bias current over temperature | IB |  |  | 800 | pA | over Temperature | 3 |
| Input offset current | IOS |  | 1 |  | pA |  | 3 |
| Common-mode rejection ratio | CMRR | 80 | 97 |  | dB | VCM= 0.05V to 3.5V | 3 |
| Common-mode rejection ratio over temperature | CMRR | 70 |  |  | dB | VCM= 0.05V to 3.5V, over Temperature | 3 |
| Common-mode rejection ratio | CMRR | 70 | 82 |  | dB | VCM= VS--0.1 to VS++0.1 V | 3 |
| Common-mode rejection ratio over temperature | CMRR | 66 |  |  | dB | VCM= VS--0.1 to VS++0.1 V, over Temperature | 3 |
| Open-loop voltage gain | AVOL | 102 | 116 |  | dB | RL = 10kΩ, VO = 0.05 to 3.5 V | 3 |
| Open-loop voltage gain over temperature | AVOL | 90 |  |  | dB | RL = 10kΩ, VO = 0.05 to 3.5 V, over Temperature | 3 |
| Open-loop voltage gain | AVOL | 93 | 108 |  | dB | RL = 2kΩ, VO = 0.15 to 3.5 V | 3 |
| Open-loop voltage gain over temperature | AVOL | 82 |  |  | dB | RL = 2kΩ, VO = 0.15 to 3.5 V, over Temperature | 3 |
| Input resistance | RIN |  | 100 |  | GΩ |  | 3 |
| Input capacitance differential | CIN |  | 2 |  | pF | Differential | 3 |
| Input capacitance common mode | CIN |  | 3.5 |  | pF | Common mode | 3 |
| Closed-loop output impedance | ZOUT |  | 0.4 |  | Ω | f = 200kHz, G = +1 | 3 |
| Open-loop output impedance | ZOUT |  | 2.6 |  | Ω | f = 1MHz, IO= 0 | 3 |
| Short-circuit current source | ISC |  | 45 |  | mA | Source current through 10Ω | 3 |
| Short-circuit current sink | ISC |  | 45 |  | mA | Sink current through 10Ω | 3 |
| Gain bandwidth product | GBW |  | 1.3 |  | MHz | f = 1kHz | 3 |
| Phase margin | ΦM |  | 66 |  | ° | CL = 100pF | 3 |
| Slew rate | SR |  | 0.9 |  | V/μs | G=+1,CL=100pF,VO=1.5V to 3.5V | 3 |
| Settling time to 0.1% | tS |  | 4.1 |  | μs | To 0.1%, G = +1, 2V step | 3 |
| Settling time to 0.01% | tS |  | 5.1 |  | μs | To 0.01%, G = +1, 2V step | 3 |
| Total harmonic distortion + noise | THD+N |  | 0.0018 |  | % | f = 1kHz, G = +1, VO = 3VPP | 3 |
| Input voltage noise | Vn |  | 8 |  | μVP-P | f = 0.1 to 10 Hz | 4 |
| Input voltage noise density | en |  | 27 |  | nV/√Hz | f = 1kHz | 4 |
| Input current noise density | In |  | 4 |  | fA/√Hz | f = 1kHz | 4 |
| Operating supply voltage | VS | 2.1 |  | 5.5 | V |  | 4 |
| Power supply rejection ratio | PSRR | 82 | 102 |  | dB | VS= 2.7V to 5.5V, VCM< VS+− 2V | 4 |
| Power supply rejection ratio over temperature | PSRR | 75 |  |  | dB | over Temperature | 4 |
| Quiescent current (per amplifier) | IQ |  | 70 | 110 | μA |  | 4 |
| Quiescent current over temperature | IQ |  |  | 125 | μA | over Temperature | 4 |
| Operating temperature range | TA | -40 |  | 125 | °C |  | 4 |
| Package thermal resistance SOP-8 | θJA |  | 125 |  | ℃/W | SOP-8 | 4 |
| Supply voltage VS+ to VS- |  |  |  | 10 | V |  | 2 |
| Storage temperature range |  | -65 |  | 150 | ℃ |  | 2 |
| Junction temperature |  |  |  | 160 | ℃ |  | 2 |
| Lead temperature |  |  |  | 260 | ℃ | Soldering 10 sec | 2 |
| ESD voltage HBM |  | -4000 |  | 4000 | V | HBM | 2 |
| ESD voltage CDM |  | -2000 |  | 2000 | V | CDM | 2 |
| ESD voltage MM |  | -400 |  | 400 | V | MM | 2 |

## CAD (KiCad official)

- Symbol: `HOPA2348AIDR`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `hopa2348aidr-etched.step` / `hopa2348aidr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `hopa2348aidr.step` / `hopa2348aidr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [HXY MOSFET datasheet](docs/hopa2348aidr-datasheet.pdf) (13 pp, sha256 `4d580fa917d21ea0`, retrieved 2026-10-26, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-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/hopa2348aidr-datasheet.pdf)