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HG741CM
Public Made by Adomby adom
HGSEMI Operational Amplifier, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownHG741CM
HGSEMI · Operational Amplifier · SOP-8
HG741CM from HGSEMI, 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 | OFFSET NULL | passive | Offset null terminal, connected with pin 5 through a 10 kΩ potentiometer whose wiper goes to V- for offset nulling. |
| 2 | INVERTING INPUT | input | Inverting input; differential input voltage up to ±30V and input voltage ±15V absolute maximum. |
| 3 | NON-INVERTING INPUT | input | Non-inverting input; differential input voltage up to ±30V and input voltage ±15V absolute maximum. |
| 4 | V- | power_in | Negative supply voltage (ground in single-supply use); supply voltage rated up to ±22V, and the wiper of the offset-null potentiometer connects here. |
| 5 | OFFSET NULL | passive | Offset null terminal, connected with pin 1 through a 10 kΩ potentiometer whose wiper goes to V- for offset nulling. |
| 6 | OUTPUT | output | Amplifier output with overload protection and continuous short-circuit duration; short-circuit current typically 25 mA at 25°C. |
| 7 | V+ | power_in | Positive supply voltage; supply voltage rated up to ±22V. |
| 8 | NC | unconnected | No internal connection. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HGSEMI |
| 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 |
|---|---|---|---|---|---|---|---|
| Supply Voltage | -22 | 22 | V | Printed as ±22V | 3 | ||
| Differential Input Voltage | -30 | 30 | V | Printed as ±30V | 3 | ||
| Input Voltage | -15 | 15 | V | Printed as ±15V; Note 3: for supplies below ±15V the limit equals the supply voltage | 3 | ||
| Power Dissipation | 500 | mW | Note 2: derate using θjA and Tj max | 3 | |||
| Junction Temperature | 100 | ˚C | HG741 (non-A variant) | 3 | |||
| Operating Temperature Range | 0 | 70 | ˚C | 3 | |||
| Storage Temperature Range | -65 | 150 | ˚C | 3 | |||
| ESD Tolerance | 400 | V | Note 7 (as printed) | 3 | |||
| Soldering Temperature, M-Package Vapor Phase | 215 | ˚C | M-Package Vapor Phase, 60 seconds | 3 | |||
| Soldering Temperature, M-Package Infrared | 215 | ˚C | M-Package Infrared, 15 seconds | 3 | |||
| Input Offset Voltage | 2 | 6 | mW | TA=25˚C, RS≤10KΩ (HG741 column) | 3 | ||
| Input Offset Voltage | 0.8 | 3 | mW | TA=25˚C, RS≤50Ω (HG741 column) | 3 | ||
| Input Offset Current | 20 | 200 | nA | TA=25˚C | 3 | ||
| Input Offset Current | 300 | nA | TAMIN≤TA≤TAMAX | 3 | |||
| Input Bias Current | 80 | 500 | nA | TA=25˚C | 3 | ||
| Output Short Circuit Current | 25 | mA | TA=25˚C | 4 | |||
| Supply Current | 1.7 | 2.8 | mA | TA=25˚C | 4 | ||
| Slew Rate | 0.5 | V/µs | TA=25˚C, Unity Gain | 4 | |||
| Junction to Ambient Thermal Resistance (SOP-8(M)) | θjA | 195 | ˚C/W | SOP-8(M) package, junction to ambient | 4 |
CAD (KiCad official)
- Symbol:
HG741CM - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
hg741cm-etched.step/hg741cm-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);hg741cm.step/hg741cm.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HGSEMI datasheet (7 pp, sha256
2e9b73dccf83701f, retrieved 2026-10-20, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).