component
ADR4525
Public Made by Adomby adom
ADI 2.5 V ultra-high-precision voltage reference, SOIC-8. 0.02% initial accuracy, 2 ppm/C, low noise. Datasheet-verified.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownADR4525
Analog Devices · Voltage reference · SOIC-8
Series voltage reference that holds 2.5 V to 0.02% initial accuracy with a 2 ppm/C temperature drift, in a SOIC-8. Low output noise and high stability suit it to driving the reference input of a precision ADC or DAC, where the converter's accuracy is capped by the reference. It takes any supply from a few hundred mV above the output up to 15 V. The 2.5 V member of the ADR45xx family (2.048 V through 5.0 V).
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | NIC | unconnected | Not Internally Connected. This pin is not connected internally; may be tied to any potential or left floating. |
| 2 | VIN | power_in | Input Voltage Connection. Operating range 3 V to 15 V. Decouple with a 0.1 µF ceramic capacitor to GND close to the pin. |
| 3 | NIC | unconnected | Not Internally Connected. This pin is not connected internally. |
| 4 | GND | power_in | Ground return for the device. Connect to the system analog ground with a low-impedance path. |
| 5 | NIC | unconnected | Not Internally Connected. This pin is not connected internally. |
| 6 | VOUT | power_out | Reference Output Voltage, nominal 2.500 V. Sources up to +10 mA and sinks up to -10 mA. Recommended output capacitor 1 µF (load capacitance range 1 µF to 100 µF). |
| 7 | NIC | unconnected | Not Internally Connected. This pin is not connected internally. |
| 8 | DNC | unconnected | Do Not Connect. Do not connect to this pin, do not tie to any potential and do not route a trace to it. |
Key specifications
| Parameter | Value |
|---|---|
| Type | Series (bandgap) voltage reference |
| Output | 2.5 V |
| Initial accuracy | +/-0.02% (A grade) |
| Temp coefficient | 2 ppm/C (max) |
| Output noise | 1.25 uV p-p (0.1-10 Hz) |
| Supply | Output + 0.3 V to 15 V |
| Package | SOIC-8 |
Ordering variants
ADR4525ARMZ (MSOP-8)ADR4525BRZ (SOIC-8)ADR4525ARZ (SOIC-8)
CAD (KiCad official)
- Symbol:
Reference_Voltage:ADR4525 (KiCad official) - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
adr4525-etched.step/adr4525-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);adr4525.step/adr4525.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Analog Devices datasheet (41 pp, sha256
de2dca59e24477c2, retrieved 2026-08-17, tier: manufacturer) - 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).