# ADR425BRZ

**Analog Devices** · Voltage References · SOIC-8

ADR425BRZ 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 | TP | unconnected | Test pin reserved for factory testing; there are actual connections in TP pins, and users should not connect anything to it, otherwise the device may not function properly. |
| 2 | VIN | power_in | Input voltage; the ADR425 operating range is 7 V to 18 V, and the absolute maximum supply voltage is 18 V. |
| 3 | NIC | unconnected | No internal connection; the pin has no internal connections. |
| 4 | GND | power_in | Ground pin, defined as 0 V. |
| 5 | TRIM | passive | Trim terminal that adjusts the output voltage over a ±0.5% range without affecting the temperature coefficient; the datasheet recommends low temperature coefficient trim potentiometer and resistors, preferably <100 ppm/°C. |
| 6 | VOUT | power_out | Output voltage, 5.00 V nominal for the ADR425, with guaranteed load current up to 10 mA. |
| 7 | NIC | unconnected | No internal connection; the pin has no internal connections. |
| 8 | TP | unconnected | Test pin reserved for factory testing; there are actual connections in TP pins, and users should not connect anything to it, otherwise the device may not function properly. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices |
| Package | SOIC-8 |
| Category | Power Management ICs |
| 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 |
|---|---|---|---|---|---|---|---|
| Output voltage, B grade | VOUT | 4.998 | 5 | 5.002 | V |  | 7 |
| Initial accuracy, B grade (absolute) | VOUTERR | -2 |  | 2 | mV |  | 7 |
| Initial accuracy, B grade (relative) | VOUTERR | -0.04 |  | 0.04 | % |  | 7 |
| Temperature coefficient, B grade | TCVOUT |  | 1 | 3 | ppm/°C |  | 7 |
| Line regulation | ΔVO/ΔVIN |  | 10 | 35 | ppm/V | VIN = 7 V to 18 V, −40°C < TA < +125°C | 7 |
| Load regulation | ΔVO/ΔIL |  |  | 70 | ppm/mA | IL = 0 mA to 10 mA, −40°C < TA < +125°C | 7 |
| Quiescent current | IIN |  | 390 | 500 | µA | No load | 7 |
| Quiescent current over temperature | IIN |  |  | 600 | µA | −40°C < TA < +125°C | 7 |
| Supply voltage (absolute maximum) |  |  |  | 18 | V |  | 8 |
| Storage temperature range |  | -65 |  | 150 | °C |  | 8 |
| Operating temperature range |  | -40 |  | 125 | °C |  | 8 |
| Junction temperature range |  | -65 |  | 150 | °C |  | 8 |
| Lead temperature (soldering) |  |  |  | 300 | °C | Soldering, 60 sec | 8 |
| Input voltage operating range (ADR425) | VIN | 7 |  | 18 | V |  | 1 |
| Thermal resistance, junction-to-ambient, 8-Lead SOIC (R) | θJA |  | 130 |  | °C/W | Devices soldered in circuit board (worst case) | 8 |
| Thermal resistance, junction-to-case, 8-Lead SOIC (R) | θJC |  | 43 |  | °C/W |  | 8 |

## CAD (KiCad official)

- Symbol: `ADR425BRZ`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `adr425brz-etched.step` / `adr425brz-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `adr425brz.step` / `adr425brz.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/ADR420_421_423_425.pdf) (24 pp, sha256 `a3f954c509a578f6`, 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/adr425brz-datasheet.pdf)