component
CA3140AM
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
markdownCA3140AM
HGSEMI · Operational Amplifier · SOP-8
CA3140AM 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 (balance) terminal for input offset adjustment; the datasheet gives a typical 4.7 kΩ nulling resistance between pin 4 and pin 5 (or pin 4 and pin 1) when adjusted to maximum input voltage. |
| 2 | INV.INPUT | input | Inverting input; absolute maximum common-mode DC input voltage is V+ +8 V to V- -0.5 V, differential input is ±8 V, and input current is limited to 1 mA. |
| 3 | NON-INV.INPUT | input | Non-inverting input; absolute maximum common-mode DC input voltage is V+ +8 V to V- -0.5 V, differential input is ±8 V, and input current is limited to 1 mA. |
| 4 | V- | power_in | Negative power supply; the absolute maximum total supply voltage between V+ and V- is 36 V. |
| 5 | OFFSET NULL | passive | Offset null (balance) terminal; the datasheet's typical 4.7 kΩ nulling resistance is specified between pin 4 and pin 5 (or pin 4 and pin 1). |
| 6 | OUTPUT | output | Amplifier output; typical output resistance is 60 Ω, with short-circuit current of 45 mA source and 18 mA sink. |
| 7 | V+ | power_in | Positive power supply; the absolute maximum total supply voltage between V+ and V- is 36 V. |
| 8 | STROBE | output | Strobe terminal; when the output goes low, the datasheet specifies a typical 220 µA sink current flowing from pin 8 into pin 4. |
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 |
|---|---|---|---|---|---|---|---|
| DC supply voltage (V+ to V-) | 36 | V | 4 | ||||
| Differential input voltage | -8 | 8 | V | 4 | |||
| Input terminal current | 1 | mA | 4 | ||||
| Operating temperature range | -10 | 85 | ℃ | 4 | |||
| Storage temperature | -55 | 150 | ℃ | 4 | |||
| Lead temperature (soldering) | 260 | ℃ | 10 s soldering | 4 | |||
| Input offset voltage nulling resistor (pins 4-5 or 4-1) | 4.7 | kΩ | VSUPPLY=15V, TA=25℃; adjusted to max input voltage, pins 4-5 or 4-1 | 5 | |||
| Input resistance | RI | 1 | TΩ | VSUPPLY=15V, TA=25℃ | 5 | ||
| Input capacitance | C1 | 4 | pF | VSUPPLY=15V, TA=25℃ | 5 | ||
| Output resistance | RO | 60 | Ω | VSUPPLY=15V, TA=25℃ | 5 | ||
| Equivalent wideband input noise voltage | eN | 48 | μV | VSUPPLY=15V, TA=25℃; BW=140kHz, RS=1MΩ | 5 | ||
| Equivalent input noise voltage | eN | 40 | nV/√Hz | VSUPPLY=15V, TA=25℃; RS=100Ω, f=1kHz | 5 | ||
| Equivalent input noise voltage | eN | 12 | nV/√Hz | VSUPPLY=15V, TA=25℃; RS=100Ω, f=10kHz | 5 | ||
| Short-circuit output current, source | IOM+ | 45 | mA | VSUPPLY=15V, TA=25℃ | 5 | ||
| Short-circuit output current, sink | IOM- | 18 | mA | VSUPPLY=15V, TA=25℃ | 5 | ||
| Gain-bandwidth product | fT | 4.5 | MHz | VSUPPLY=15V, TA=25℃ | 5 | ||
| Slew rate | SR | 9 | V/μs | VSUPPLY=15V, TA=25℃ | 5 | ||
| Sink current from pin 8 into pin 4 when output goes low | 220 | μA | VSUPPLY=15V, TA=25℃; output goes low | 5 | |||
| Rise time | tr | 0.08 | μs | VSUPPLY=15V, TA=25℃; RL=2kΩ, CL=100pF | 5 | ||
| Overshoot | OS | 10 | % | VSUPPLY=15V, TA=25℃ | 5 | ||
| Settling time, 10 Vp-p, to 1 mV (voltage follower) | tS | 4.5 | μs | VSUPPLY=15V, TA=25℃; 10VP-P, RL=2kΩ, CL=100pF | 5 | ||
| Settling time, 10 Vp-p, to 10 mV (voltage follower) | tS | 1.4 | μs | VSUPPLY=15V, TA=25℃; 10VP-P, RL=2kΩ, CL=100pF | 5 |
CAD (KiCad official)
- Symbol:
CA3140AM - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
ca3140am-etched.step/ca3140am-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ca3140am.step/ca3140am.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HGSEMI datasheet (12 pp, sha256
b5fe51dd23d620a5, retrieved 2026-10-18, 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, primaryclaude-haiku-5-5(text), consensusclaude-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).