# OPA4374MT

**HGSEMI** · Operational Amplifier · TSSOP-14

OPA4374MT from HGSEMI, in a TSSOP-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 | OUTA | output | Output of amplifier A. |
| 2 | INA- | input | Inverting input of amplifier A, limited to VSS-0.5V to VDD+0.5V. |
| 3 | INA+ | input | Non-inverting input of amplifier A, limited to VSS-0.5V to VDD+0.5V. |
| 4 | VDD | power_in | Positive supply, 2.1V to 5.5V single supply, bypass with a 0.1µF ceramic capacitor close to the pin. |
| 5 | INB+ | input | Non-inverting input of amplifier B, limited to VSS-0.5V to VDD+0.5V. |
| 6 | INB- | input | Inverting input of amplifier B, limited to VSS-0.5V to VDD+0.5V. |
| 7 | OUTB | output | Output of amplifier B. |
| 8 | OUTC | output | Output of amplifier C. |
| 9 | INC- | input | Inverting input of amplifier C, limited to VSS-0.5V to VDD+0.5V. |
| 10 | INC+ | input | Non-inverting input of amplifier C, limited to VSS-0.5V to VDD+0.5V. |
| 11 | VSS | power_in | Negative supply or ground; for dual supply operation bypass with a separate 0.1µF ceramic capacitor. |
| 12 | IND+ | input | Non-inverting input of amplifier D, limited to VSS-0.5V to VDD+0.5V. |
| 13 | IND- | input | Inverting input of amplifier D, limited to VSS-0.5V to VDD+0.5V. |
| 14 | OUTD | output | Output of amplifier D. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | HGSEMI |
| Package | TSSOP-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 |
|---|---|---|---|---|---|---|---|
| Input Offset Voltage (VOS) | VOS |  | 0.8 | 3.5 | mV | TA = +25℃ (TYP and MIN/MAX columns); VS=5V, VCM=VS/2, RL=600Ω | 4 |
| Input Offset Voltage (VOS) | VOS |  |  | 3.9 | mV | TA = 0℃ to 70℃ | 4 |
| Input Offset Voltage (VOS) | VOS |  |  | 4.3 | mV | TA = -40℃ to 85℃ | 4 |
| Input Offset Voltage (VOS) | VOS |  |  | 4.6 | mV | TA = -40℃ to 125℃ | 4 |
| Common Mode Rejection Ratio (CMRR) | CMRR | 73 | 90 |  | dB | VS = 5.5V, VCM = -0.1V to 4V, TA = +25℃ | 4 |
| Common Mode Rejection Ratio (CMRR) | CMRR | 70 |  |  | dB | VS = 5.5V, VCM = -0.1V to 4V, TA = 0℃ to 70℃ | 4 |
| Common Mode Rejection Ratio (CMRR) | CMRR | 65 |  |  | dB | VS = 5.5V, VCM = -0.1V to 4V, TA = -40℃ to 125℃ | 4 |
| Common Mode Rejection Ratio (CMRR) | CMRR | 83 |  |  | dB | VS = 5.5V, VCM = -0.1V to 5.6V | 4 |
| Open-Loop Voltage Gain (AOL) | AOL | 90 | 97 |  | dB | RL = 600Ω, VO = 0.15V to 4.85V, TA = +25℃ | 4 |
| Open-Loop Voltage Gain (AOL) | AOL | 87 |  |  | dB | RL = 600Ω, VO = 0.15V to 4.85V, TA = 0℃ to 70℃ | 4 |
| Open-Loop Voltage Gain (AOL) | AOL | 86 |  |  | dB | RL = 600Ω, VO = 0.15V to 4.85V, TA = -40℃ to 85℃ | 4 |
| Open-Loop Voltage Gain (AOL) | AOL | 79 |  |  | dB | RL = 600Ω, VO = 0.15V to 4.85V, TA = -40℃ to 125℃ | 4 |
| Open-Loop Voltage Gain (AOL) | AOL | 108 |  |  | dB | RL = 10kΩ, VO = 0.05V to 4.95V | 4 |
| Output Current (IOUT) | IOUT | 49 | 53 |  | mA | TA = +25℃ | 4 |
| Output Current (IOUT) | IOUT | 45 |  |  | mA | TA = 0℃ to 70℃ | 4 |
| Output Current (IOUT) | IOUT | 40 |  |  | mA | TA = -40℃ to 85℃ | 4 |
| Output Current (IOUT) | IOUT | 35 |  |  | mA | TA = -40℃ to 125℃ | 4 |
| Operating Voltage Range |  | 2.1 |  | 5.5 | V |  | 4 |
| Power Supply Rejection Ratio (PSRR) | PSRR | 74 | 91 |  | dB | VS = +2.5V to +5.5V, VCM = (-VS) + 0.5V, TA = +25℃ | 4 |
| Power Supply Rejection Ratio (PSRR) | PSRR | 72 |  |  | dB | VS = +2.5V to +5.5V, VCM = (-VS) + 0.5V, TA = 0℃ to 70℃ | 4 |
| Power Supply Rejection Ratio (PSRR) | PSRR | 68 |  |  | dB | VS = +2.5V to +5.5V, VCM = (-VS) + 0.5V, TA = -40℃ to 125℃ | 4 |
| Quiescent Current/Amplifier (IQ) | IQ |  | 470 | 650 | µA | IOUT = 0, TA = +25℃ | 4 |
| Quiescent Current/Amplifier (IQ) | IQ |  |  | 750 | µA | IOUT = 0, TA = 0℃ to 70℃ | 4 |
| Quiescent Current/Amplifier (IQ) | IQ |  |  | 815 | µA | IOUT = 0, TA = -40℃ to 125℃ | 4 |
| Analog Input Voltage (IN+ or IN-) |  | -0.5 |  | 0.5 | V | Min is Vss-0.5V and max is VDD+0.5V as printed; i.e. -0.5 V relative to Vss and +0.5 V relative to VDD | 3 |
| Power Supply Voltage (VDD to Vss) |  | -0.5 |  | 7.5 | V |  | 3 |
| PDB Input Voltage |  | -0.5 |  | 7 | V | Min is Vss-0.5V as printed (relative to Vss) | 3 |
| Operating Temperature Range |  | -40 |  | 125 | °C | Note (1): industrial grade | 3 |
| Junction Temperature |  |  |  | 160 | °C |  | 3 |
| Storage Temperature Range |  | -55 |  | 150 | °C |  | 3 |
| Lead Temperature |  |  |  | 260 | °C | Soldering, 10 sec | 3 |
| ESD Susceptibility HBM |  |  |  | 8 | KV | Human body model | 3 |
| ESD Susceptibility MM |  |  |  | 400 | V | Machine model | 3 |

## CAD (KiCad official)

- Symbol: `OPA4374MT`
- Footprint: `Package_SO:TSSOP-14_4.4x5mm_P0.65mm`
- 3D model: TSSOP-14 (KiCad packages3D, STEP)
- 3D model files: `opa4374mt-etched.step` / `opa4374mt-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `opa4374mt.step` / `opa4374mt.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [HGSEMI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8759901773190844416) (16 pp, sha256 `5991665c50cfb08c`, 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/opa4374mt-datasheet.pdf)