# ICL7650N-14

**HGSEMI** · Operational Amplifier · DIP-14

ICL7650N-14 from HGSEMI, in a DIP-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 | CEXTB | passive | External nulling/storage capacitor connection B, with the other capacitor terminal to CRETN; 0.1uF for the internal clock. |
| 2 | CEXTA | passive | External nulling/storage capacitor connection A, with the other capacitor terminal to CRETN; 0.1uF for the internal clock. |
| 3 | NC (GUARD) | unconnected | No connect pin next to the inputs, usable for guarding to reduce input leakage. |
| 4 | -IN | input | Inverting input of the amplifier. |
| 5 | +IN | input | Non-inverting input of the amplifier. |
| 6 | NC (GUARD) | unconnected | No connect pin next to the inputs, usable for guarding to reduce input leakage. |
| 7 | V- | power_in | Negative supply; supply range V+ to V- is 4.5V min to 16V max (absolute maximum 18V). |
| 8 | CRETN | passive | Common return for the two null/storage capacitors, connected directly by a separate wire or PC trace. |
| 9 | OUT CLAMP | output | Output clamp; tie to the inverting input to reduce overload recovery time. |
| 10 | OUTPUT | output | Amplifier output, with a 10kohm load for full swing and indefinite short-circuit duration. |
| 11 | V+ | power_in | Positive supply; supply range V+ to V- is 4.5V min to 16V max (absolute maximum 18V). |
| 12 | INT CLK OUT | output | Internal clock oscillator output on the 14-pin version. |
| 13 | EXT CLK IN | input | External clock input; leave open (with pin 14) for the internal chopping frequency of 250Hz typical. |
| 14 | INT/EXT | input | Selects internal or external clock; leave open (with pin 13) for the internal chopping frequency of 250Hz typical. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | HGSEMI |
| Package | DIP-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 | -5 | 0.7 | 5 | µV | +25°C | 5 |
| Input Offset Voltage | VOS | -8 | 1 | 8 | µV | 0 to +70°C | 5 |
| Input Bias Current | IBIAS |  | 4 | 10 | pA | +25°C | 5 |
| Input Bias Current | IBIAS |  | 5 | 20 | pA | 0 to +70°C | 5 |
| Input Offset Current | IOS |  | 8 | 20 | pA | +25°C | 5 |
| Input Offset Current | IOS |  | 10 | 40 | pA | 0 to +70°C | 5 |
| Large Signal Voltage Gain | AVOL | 135 | 150 |  | dB | RL=10kΩ, VO=±4V; +25°C | 5 |
| Large Signal Voltage Gain | AVOL | 130 |  |  | dB | 0 to +70°C | 5 |
| Output Voltage Swing | VOUT | -4.7 | 4.85 |  | V | RL = 10kΩ; +25°C | 5 |
| Common Mode Voltage Range | CMVR | -5 |  | 3.5 | V | +25°C | 5 |
| Common Mode Rejection Ratio | CMRR | 120 | 140 |  | dB | CMVR = -5V to +3.5V; +25°C | 5 |
| Common Mode Rejection Ratio | CMRR | 120 |  |  | dB | 0 to +70°C | 5 |
| Power Supply Rejection Ratio | PSRR | 120 | 140 |  | dB | VS = ±3V to ±8V; +25°C | 5 |
| Operating Supply Range | V+ to V- | 4.5 |  | 16 | V | +25°C | 5 |
| Supply Current | ISUPP |  | 2 | 3 | mA | No Load; +25°C | 5 |
| Supply Current | ISUPP |  |  | 3.2 | mA | No Load; 0 to +70°C | 5 |
| Output Source Current | IO SOURCE | 2.9 | 4.5 |  | mA | +25°C | 5 |
| Output Source Current | IO SOURCE | 2.3 |  |  | mA | 0 to +70°C | 5 |
| Output Sink Current | IO SINK | 25 | 30 |  | mA | +25°C | 5 |
| Output Sink Current | IO SINK | 20 |  |  | mA | 0 to +70°C | 5 |
| Internal Chopping Frequency | FCH | 120 | 250 | 375 | Hz | Pins 13 and 14 Open; +25°C | 5 |
| Clamp ON Current (Note 5) |  | 25 | 70 |  | µA | RL=100KΩ; +25°C | 5 |
| Clamp OFF Current (Note 5) |  |  | 0.001 | 5 | nA | -4V≤VOUT≤+4V; +25°C | 5 |
| Clamp OFF Current (Note 5) |  |  |  | 10 | nA | 0 to +70°C | 5 |
| Supply Voltage (V+ to V-) |  |  |  | 18 | V |  | 4 |
| Current to Any Pin |  |  |  | 10 | mA |  | 4 |
| Input Current While Operating |  |  |  | 100 | µA | While Operating (Note 1) | 4 |
| Lead Temperature (Soldering, 10 seconds) |  |  |  | 260 | ℃ | Soldering, 10 seconds | 4 |
| Thermal Resistance Junction-to-Ambient | θJA |  |  | 90 | ℃/W | DIP-14 package (typical, Note 2) | 4 |
| Maximum Junction Temperature (Plastic Package) |  |  |  | 150 | ℃ |  | 4 |
| Maximum Storage Temperature Range |  | -55 |  | 150 | ℃ |  | 4 |
| Temperature Range |  | 0 |  | 70 | ℃ |  | 4 |

## CAD (KiCad official)

- Symbol: `ICL7650N-14`
- Footprint: `Package_DIP:DIP-14_W7.62mm`
- 3D model: DIP-14 (KiCad packages3D, STEP)
- 3D model files: `icl7650n-14-etched.step` / `icl7650n-14-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `icl7650n-14.step` / `icl7650n-14.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/8757090961728122880) (17 pp, sha256 `f3c91a71d74f39ca`, retrieved 2026-10-14, 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/icl7650n-14-datasheet.pdf)