# GS8709-TR

**Gainsil** · Comparators · SOT-23-5

GS8709-TR from Gainsil, in a SOT-23-5. 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 | IN+ | input | Non-inverting comparator input with rail-to-rail common-mode range of VSS-0.1V to VDD+0.1V (absolute maximum VSS-0.5V to VDD+0.5V). |
| 2 | VSS | power_in | Negative supply or ground; supply range VDD to VSS is 1.4V to 5.5V (absolute maximum 7.5V). |
| 3 | IN- | input | Inverting comparator input with rail-to-rail common-mode range of VSS-0.1V to VDD+0.1V (absolute maximum VSS-0.5V to VDD+0.5V). |
| 4 | OUT | output | Push-pull, CMOS/TTL-compatible comparator output with rail-to-rail swing; typical short-circuit source current 22mA and sink current 20mA at VS=5V. |
| 5 | VDD | power_in | Positive supply, 1.4V to 5.5V single supply (absolute maximum 7.5V), bypassed with a 0.1uF ceramic capacitor placed close to the pin. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Gainsil |
| Package | SOT-23-5 |
| Category | Amplifiers/Comparators |
| Pins | 5 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Operating Voltage Range |  | 1.4 |  | 5.5 | V |  | 5 |
| Common-Mode Voltage Range | VCM | -0.1 |  | 5.6 | V | VS = 5.5V | 5 |
| Input Offset Voltage | VOS |  | 0.5 | 3 | mV | VCM = 0V | 5 |
| Common-Mode Rejection Ratio | CMRR | 63 | 76 |  | dB | VS = 5V, VCM = 0V to 5V | 5 |
| Output Voltage Swing from Rail (VOL) | VOL |  | 115 | 300 | mV |  | 5 |
| Power Supply Rejection Ratio | PSRR | 74 | 102 |  | dB | VS = +1.4V to +5.5V, VCM = 0V | 5 |
| Quiescent Current / Comparator | IQ |  | 325 | 2000 | nA |  | 5 |
| Power Supply Voltage (VDD to Vss) |  | -0.5 |  | 7.5 | V |  | 3 |
| PDB Input Voltage |  |  |  | 7 | V |  | 3 |
| Operating Temperature Range |  | -40 |  | 85 | °C |  | 3 |
| Junction Temperature |  |  |  | 160 | °C |  | 3 |
| Storage Temperature Range |  | -55 |  | 150 | °C |  | 3 |
| Lead Temperature (soldering) |  |  |  | 260 | °C | soldering, 10sec | 3 |
| ESD Susceptibility HBM |  |  |  | 4 | KV | HBM | 3 |
| ESD Susceptibility MM |  |  |  | 300 | V | MM | 3 |
| Package Thermal Resistance, SOT23-5 | θJA |  | 190 |  | °C/W | TA=+25℃ | 3 |

## CAD (KiCad official)

- Symbol: `GS8709-TR`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `gs8709-tr-etched.step` / `gs8709-tr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `gs8709-tr.step` / `gs8709-tr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Gainsil datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588946211012927488) (16 pp, sha256 `88f5c06ef15f160d`, retrieved 2026-10-19, 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/gs8709-tr-datasheet.pdf)