# ADM811RARTZ-REEL7

**Analog Devices** · Monitors & Reset Circuits · SOT-143

ADM811RARTZ-REEL7 from Analog Devices, in a SOT-143. 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 | GND | power_in | Ground reference for all signals, 0 V. |
| 2 | /RESET | output | Active-low logic output (ADM811 variant). RESET remains low while VCC is below the reset threshold or when /MR is low; RESET then remains low for at least 140 ms after VCC rises above the reset threshold. VOL <= 0.3 V @ ISINK = 1.2 mA; VOH >= 0.8*VCC @ ISOURCE = 500 uA. |
| 3 | /MR | input | Manual Reset. Active-low debounced input; ignores input pulses of 100 ns or less (typical) and is guaranteed to accept input pulses greater than 10 us. Internally pulled up (10-30 kOhm typ 20 kOhm). Leave floating when not used. |
| 4 | VCC | power_in | Monitored supply voltage (2.5 V, 3 V, 3.3 V, or 5 V options; 2.63 V typical reset threshold for the R variant). A 0.1 uF decoupling capacitor between VCC and GND is recommended. Absolute maximum VCC = -0.3 V to +6 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices |
| Package | SOT-143 |
| Category | Power Supply Chip |
| Pins | 4 |

## Ordering variants

Same part, different packaging or reel option.

- `ADM811RARTZ-REEL7`

## CAD (KiCad official)

- Symbol: `ADM811RARTZ-REEL7`
- Footprint: `Package_TO_SOT_SMD:SOT-143`
- 3D model: SOT-143 (KiCad packages3D, STEP)
- 3D model files: `adm811rartz-reel7-etched.step` / `adm811rartz-reel7-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `adm811rartz-reel7.step` / `adm811rartz-reel7.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Analog Devices datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589805484124909568) (12 pp, sha256 `b82418ebee2a8f6b`, 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/adm811rartz-reel7-datasheet.pdf)