component
CA3140AN
Public Made by Adomby adom
HGSEMI Operational Amplifier, DIP-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
markdownCA3140AN
HGSEMI · Operational Amplifier · DIP-8
CA3140AN from HGSEMI, in a DIP-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 (偏置/调零端) used with pin 5 for input offset voltage adjustment; the datasheet gives a 4.7 kΩ typical adjustment resistance between pins 4 and 5 or 4 and 1 when set to maximum input voltage. |
| 2 | INV.INPUT | input | Inverting input (反向输入端) of the op amp, which provides very high input impedance (typically 1 TΩ) and low input current through a gate-protected PMOS input stage. |
| 3 | NON-INV.INPUT | input | Non-inverting input (同向输入端) of the op amp, which provides very high input impedance (typically 1 TΩ) and low input current through a gate-protected PMOS input stage. |
| 4 | V- | power_in | Negative power supply terminal (负电源); the total supply voltage between V+ and V- must not exceed 36 V per the absolute maximum ratings. |
| 5 | OFFSET NULL | passive | Offset null (balance) terminal (偏置/调零端) used with pin 1 for input offset voltage adjustment, with the same 4.7 kΩ typical adjustment resistance between pins 4 and 5 or 4 and 1 at maximum input voltage. |
| 6 | OUTPUT | output | Amplifier output (输出); the typical output resistance is 60 Ω and the short-circuit output current is typically 45 mA source and 18 mA sink. |
| 7 | V+ | power_in | Positive power supply terminal (正电源); the total supply voltage between V+ and V- must not exceed 36 V per the absolute maximum ratings. |
| 8 | STROBE | output | Strobe output (选通端); when the output goes low, the datasheet specifies a sink current of 220 µA flowing from pin 8 into pin 4. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HGSEMI |
| Package | DIP-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 (between V+ and V-) | 36 | V | 4 | ||||
| Differential input voltage | -8 | 8 | V | 4 | |||
| Input current | 1 | mA | 4 | ||||
| Operating temperature range | -10 | 85 | ℃ | 4 | |||
| Storage temperature range | -55 | 150 | ℃ | 4 | |||
| Lead temperature (soldering) | 260 | ℃ | soldering 10 s | 4 | |||
| Input offset voltage adjustment resistor (pin 4-5 or 4-1) | 4.7 | kΩ | adjusted to maximum input voltage; between 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 | BW=140kHz, RS=1MΩ | 5 | ||
| Equivalent input noise voltage | eN | 40 | nV/√Hz | RS=100Ω, f=1kHz | 5 | ||
| Equivalent input noise voltage | eN | 12 | nV/√Hz | RS=100Ω, f=10kHz | 5 | ||
| Output short-circuit current (source) | IOM+ | 45 | mA | short-circuit current, opposite to supply | 5 | ||
| Output short-circuit current (sink) | IOM- | 18 | mA | short-circuit current, opposite to supply | 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 is low | 220 | μA | output goes low; current from pin 8 into pin 4 | 5 | |||
| Rise time | tr | 0.08 | μs | RL=2kΩ, CL=100pF | 5 | ||
| Overshoot | OS | 10 | % | 5 | |||
| Settling time to 1 mV | tS | 4.5 | μs | 10 VP-P, RL=2kΩ, CL=100pF, voltage follower | 5 | ||
| Settling time to 10 mV | tS | 1.4 | μs | 10 VP-P, RL=2kΩ, CL=100pF, voltage follower | 5 |
CAD (KiCad official)
- Symbol:
CA3140AN - Footprint:
Package_DIP:DIP-8_W7.62mm - 3D model: DIP-8 (KiCad packages3D, STEP)
- 3D model files:
ca3140an-etched.step/ca3140an-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ca3140an.step/ca3140an.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HGSEMI datasheet (12 pp, sha256
b5fe51dd23d620a5, retrieved 2026-10-15, 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).