# TP1942-SR

**3PEAK** · Comparators · SOIC-8

TP1942-SR from 3PEAK, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | OUTA | output | Comparator A push-pull output. CMOS/TTL compatible, rail-to-rail swing (VOH = VDD-0.3V @ 1mA, VOL = VSS+0.3V @ 1mA). Short-circuit current typ 25 mA; absolute max output current +/-45 mA. |
| 2 | -INA | input | Comparator A inverting input. Rail-to-rail input range extends 200 mV below VSS and above VDD. Input bias current 6 pA typ; input voltage limited to V- - 0.3V to V+ + 0.3V. |
| 3 | +INA | input | Comparator A non-inverting input. Rail-to-rail input range extends 200 mV below VSS and above VDD. Input bias current 6 pA typ. |
| 4 | V- | power_in | Negative supply / ground reference (VSS). Total supply V+ - V- must not exceed 6.0V absolute max; typical single-supply operation 1.8V to 5.5V with V- tied to GND. |
| 5 | +INB | input | Comparator B non-inverting input. Rail-to-rail input range extends 200 mV below VSS and above VDD. Input bias current 6 pA typ. |
| 6 | -INB | input | Comparator B inverting input. Rail-to-rail input range extends 200 mV below VSS and above VDD. Input bias current 6 pA typ. |
| 7 | OUTB | output | Comparator B push-pull output. CMOS/TTL compatible, rail-to-rail swing (VOH = VDD-0.3V @ 1mA, VOL = VSS+0.3V @ 1mA). Short-circuit current typ 25 mA. |
| 8 | V+ | power_in | Positive supply (VDD). Single-supply range 1.8V to 5.5V; absolute max V+ - V- = 6.0V. Quiescent current 46 uA typ per comparator (92 uA total for dual). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | 3PEAK |
| Package | SOIC-8 |
| Category | Op-amp/Cmp |
| Pins | 8 |

## Ordering variants

Same part, different packaging or reel option.

- `TP1942-SR`
- `TP1942-SRTR`
- `TP1942-SRVR`
- `TP1942-SRDR`

## CAD (KiCad official)

- Symbol: `TP1942-SR`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `tp1942-sr-etched.step` / `tp1942-sr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tp1942-sr.step` / `tp1942-sr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [3PEAK datasheet](docs/tp1942-sr-datasheet.pdf) (23 pp, sha256 `4adf4d1d84f0557d`, retrieved 2026-08-17, tier: lcsc)
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/tp1942-sr-datasheet.pdf)