# HA1001EM

**QH MICRO-E** · Differential OpAmps · MSOP-8

HA1001EM from QH MICRO-E, in a MSOP-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 | -IN | input | Negative (inverting) input of the differential amplifier. |
| 2 | VOCM | input | Common-mode control pin; an external reference voltage sets the output common-mode level. |
| 3 | VCC | power_in | Positive supply, 3.3V to 5V single supply (±1.65V to ±2.5V dual), absolute maximum 6V. |
| 4 | +OUT | output | Positive (non-inverting) output of the differential amplifier. |
| 5 | -OUT | output | Negative (inverting) output of the differential amplifier. |
| 6 | GND | power_in | Chip ground; connect to the negative supply when using dual supplies. |
| 7 | PD | input | Enable/power-down pin (name not printed in the table); must be tied high for normal operation, enabled above 2.2V and power-down below 1.9V. |
| 8 | +IN | input | Positive (non-inverting) input of the differential amplifier. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | QH MICRO-E |
| Package | MSOP-8 |
| Category | Operational Amplifier/Comparator |
| 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 |  | 6 | 9 | mV | VCC=5V, Gain=100 | 4 |
| Input common-mode voltage range | VICR | 0.1 |  | 4.2 | V | VCC=5V | 4 |
| PD level (Enable) | VH(PD) | 2.2 |  |  | V |  | 4 |
| PD level (Power Down) | VL(PD) |  |  | 1.9 | V |  | 4 |
| Supply voltage | VCC | 3.3 |  | 5 | V |  | 4 |
| Operating ambient temperature | TA | -40 |  | 125 | °C |  | 4 |
| Supply voltage (absolute maximum) | VCC |  |  | 6 | V |  | 4 |
| Junction temperature | TJ |  |  | 150 | °C |  | 4 |
| ESD rating (HBM) |  |  |  | 2000 | V | HBM | 4 |
| Input bias current | IB |  | 50 |  | nA | VCC=5V, RI=1kΩ | 4 |
| Common-mode rejection ratio | CMRR |  | 65 |  | dB | VCC=5 V(2V<VOCM<3V) | 4 |
| Open-loop voltage gain | AVO |  | 90 |  | dB | VCC=5V | 4 |
| Quiescent current | ID |  | 22 |  | mA | VCC=5V | 4 |
| Quiescent current | ID |  | 14 |  | mA | VCC=3.3V | 4 |
| Gain bandwidth product | GBW |  | 100 |  | MHz | Gain=10 | 4 |
| Small-signal bandwidth | BW |  | 110 |  | MHz | Gain=1, RF=200Ω | 4 |
| Slew rate | SR |  | 55 |  | V/us | Gain=1 | 4 |
| Output high level | VOH |  | 4.9 |  | V | VIC = VCC/2, RL=800Ω | 4 |
| Output low level | VOL |  | 0.1 |  | V | VIC = VCC/2, RL=800Ω | 4 |
| Input noise voltage | Vn |  | 5.5 |  | nV/√Hz |  | 4 |
| Settling time (0.1%) | t0.1% |  | 50 |  | ns |  | 4 |

## CAD (KiCad official)

- Symbol: `HA1001EM`
- Footprint: `Package_SO:MSOP-8_3x3mm_P0.65mm`
- 3D model: MSOP-8 (KiCad packages3D, STEP)
- 3D model files: `ha1001em-etched.step` / `ha1001em-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ha1001em.step` / `ha1001em.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [QH MICRO-E datasheet](docs/ha1001em-datasheet.pdf) (7 pp, sha256 `b46dadd085c863aa`, retrieved 2026-10-30, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **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/ha1001em-datasheet.pdf)