# ADM708RARZ-REEL

**Analog Devices** · Monitors & Reset Circuits · SOIC-8

ADM708RARZ-REEL from Analog Devices, in a SOIC-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 | MR | input | Manual Reset Input: when taken below 0.6 V a RESET/RESET is generated, it is internally debounced, and an internal 70 μA pull-up holds it high when floating. |
| 2 | VCC | power_in | Power Supply Input: place a 0.1 µF decoupling capacitor between the VCC and GND pins; operating voltage range is 1.0 V to 5.5 V. |
| 3 | GND | power_in | Ground: ground reference for all signals at 0 V. |
| 4 | PFI | input | Power Fail Input: noninverting input to the power fail comparator; when PFI is less than 1.25 V, PFO goes low, and if unused PFI must connect to GND. |
| 5 | PFO | output | Power Fail Output: output of the power fail comparator that goes low when PFI is less than 1.25 V. |
| 6 | NC | unconnected | No Connect: pin is not internally connected. |
| 7 | RESET | output | Logic Output (active low): goes low for 200 ms when triggered by VCC below the reset threshold or a low on MR, and remains low until 200 ms after VCC is above the reset threshold or MR goes from low to high. |
| 8 | RESET | output | Logic Output (active high): the inverse of RESET, suitable for systems that use active high reset logic. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices |
| Package | SOIC-8 |
| Category | Power Supply Chip |
| 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 |
|---|---|---|---|---|---|---|---|
| VCC Operating Voltage Range | VCC | 1 |  | 5.5 | V |  | 3 |
| Supply Current |  |  | 100 | 200 | µA | VCC < 3.6 V | 3 |
| Supply Current |  |  | 150 | 350 | µA | VCC < 5.5 V | 3 |
| Reset Threshold | VRST | 2.55 | 2.63 | 2.7 | V | ADM706P/ADM706R/ADM708R | 3 |
| RESET Pulse Width |  | 160 | 200 | 280 | ms | ADM706P/ADM706R/ADM708R, VCC = 3 V | 3 |
| RESET Output Voltage VOL | VOL |  |  | 0.3 | V | VRST (max) < VCC < 3.6 V, ISINK = 500 μA | 3 |
| RESET Output Voltage VOL | VOL |  |  | 0.4 | V | 4.5 V < VCC < 5.5 V, ISINK = 1.2 mA | 3 |
| MR Pull-Up Current |  | 25 | 70 | 250 | μA | VRST (max) < VCC < 3.6 V | 4 |
| MR Pull-Up Current |  | 100 | 250 | 600 | μA | 4.5 V < VCC < 5.5 V | 4 |
| MR Pulse Width |  | 500 |  |  | ns | VRST (max) < VCC < 3.6 V | 4 |
| MR Pulse Width |  | 150 |  |  | ns | 4.5 V < VCC < 5.5 V | 4 |
| MR Input Threshold VIL | VIL |  |  | 0.6 | V | VRST (max) < VCC < 3.6 V | 4 |
| MR Input Threshold VIL | VIL |  |  | 0.8 | V | 4.5 V < VCC < 5.5 V | 4 |
| MR Input Threshold VIH | VIH | 2 |  |  | V | 4.5 V < VCC < 5.5 V | 4 |
| MR to RESET Output Delay |  |  |  | 750 | ns | VRST (max) < VCC < 3.6 V | 4 |
| MR to RESET Output Delay |  |  |  | 250 | ns | 4.5 V < VCC < 5.5 V | 4 |
| PFI Input Threshold |  | 1.2 | 1.25 | 1.3 | V | ADM706P/ADM706R/ADM708R, VCC = 3 V | 4 |
| PFI Input Current |  | -25 | 0.01 | 25 | nA |  | 4 |
| PFO Output Voltage VOL | VOL |  |  | 0.3 | V | VRST (max) < VCC < 3.6 V, ISINK = 1.2 mA | 4 |
| PFO Output Voltage VOL | VOL |  |  | 0.4 | V | 4.5 V < VCC < 5.5 V, ISINK = 3.2 mA | 4 |
| VCC Supply Voltage Absolute Maximum | VCC | -0.3 |  | 6 | V |  | 5 |
| Input Current VCC |  |  |  | 20 | mA |  | 5 |
| Input Current GND |  |  |  | 20 | mA |  | 5 |
| Digital Output Current |  |  |  | 20 | mA |  | 5 |
| Power Dissipation R-8 (SOIC) |  |  |  | 470 | mW |  | 5 |
| θJA Thermal Impedance R-8 (SOIC) | θJA |  |  | 110 | °C/W |  | 5 |
| Operating Temperature Range (Industrial, Version A) |  | -40 |  | 85 | °C |  | 5 |
| Lead Temperature (Soldering, 10 sec) |  |  |  | 300 | °C | 10 sec | 5 |
| Lead Temperature (Vapor Phase, 60 sec) |  |  |  | 215 | °C | 60 sec | 5 |
| Lead Temperature (Infrared, 15 sec) |  |  |  | 220 | °C | 15 sec | 5 |
| Storage Temperature Range |  | -65 |  | 150 | °C |  | 5 |
| ESD Rating |  | 4.5 |  |  | kV |  | 5 |
| VCC Operating Voltage Range (ADM706P/ADM706R/ADM708R) | VCC | 2.7 |  | 5.5 | V | ADM706P/ADM706R/ADM708R | 3 |
| Reset Threshold Hysteresis |  |  | 20 |  | mV |  | 3 |

## CAD (KiCad official)

- Symbol: `ADM708RARZ-REEL`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `adm708rarz-reel-etched.step` / `adm708rarz-reel-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `adm708rarz-reel.step` / `adm708rarz-reel.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Analog Devices datasheet](https://www.analog.com/media/en/technical-documentation/data-sheets/ADM706P_706R_706S_706T_708R_708S_708T.pdf) (16 pp, sha256 `895503bcb0ce1e41`, retrieved 2026-10-30, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-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).

[Datasheet PDF](docs/adm708rarz-reel-datasheet.pdf)