component
ADR4550ARZ-R7
Public Made by Adomby adom
Analog Devices Voltage Reference, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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
markdownADR4550ARZ-R7
Analog Devices · Voltage Reference · SOIC-8
ADR4550ARZ-R7 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 | NIC | unconnected | Internally not connected; the pin is not connected inside the device and is not specified for an external connection. |
| 2 | VIN | power_in | Input voltage connection; the ADR4550 electrical characteristics are specified for VIN = 5.1 V to 15 V, with a 16 V absolute maximum supply rating. |
| 3 | NIC | unconnected | Internally not connected; the pin is not connected inside the device and is not specified for an external connection. |
| 4 | GND | power_in | Ground reference for the device. |
| 5 | NIC | unconnected | Internally not connected; the pin is not connected inside the device and is not specified for an external connection. |
| 6 | VOUT | power_out | Buffered reference output that the datasheet rates for +10 mA source and −10 mA sink, and which should be wired directly to the load to preserve output accuracy. |
| 7 | NIC | unconnected | Internally not connected; the pin is not connected inside the device and is not specified for an external connection. |
| 8 | DNC | unconnected | Do not connect; this pin must be left unconnected by the user. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices |
| Package | SOIC-8 |
| Category | Power Management (PMIC) |
| 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 |
|---|---|---|---|---|---|---|---|
| Initial output voltage error, grade A | VOUT_ERR | -0.04 | 0.04 | % | Grade A (ADR4550ARZ-R7) | 9 | |
| Initial output voltage error, grade A | VOUT_ERR | 2 | mV | Grade A, absolute error | 9 | ||
| Solder heat shift (SHR) change | -0.02 | 0.02 | % | After 3 reflow cycles | 9 | ||
| Temperature coefficient, grade A, box method | TCVOUT | 4 | ppm/°C | Grade A, −40°C ≤ TA ≤ +125°C (box method) | 9 | ||
| Temperature coefficient, grade A, bow-tie method | TCVOUT | 8 | ppm/°C | Grade A, −40°C ≤ TA ≤ +125°C (bow-tie method) | 9 | ||
| Line regulation | ΔVOUT/ΔVIN | 1 | 10 | ppm/V | −40°C ≤ TA ≤ +125°C | 9 | |
| Load regulation, source | ΔVOUT/ΔIL | 25 | 80 | ppm/mA | IL = 0 mA to +10 mA source, −40°C ≤ TA ≤ +125°C | 9 | |
| Load regulation, sink | ΔVOUT/ΔIL | 35 | 120 | ppm/mA | IL = 0 mA to −10 mA sink, −40°C ≤ TA ≤ +125°C | 9 | |
| Supply current | IQ | 700 | 950 | μA | −40°C ≤ TA ≤ +125°C, no load | 9 | |
| Dropout voltage, no load | VDO | 100 | mV | −40°C ≤ TA ≤ +125°C, no load | 9 | ||
| Dropout voltage, IL = 2 mA | VDO | 300 | mV | −40°C ≤ TA ≤ +125°C, IL = 2 mA | 9 | ||
| Ripple rejection ratio | RRR | 90 | dB | fIN = 1 kHz | 9 | ||
| Output current capability, sink | IL | -10 | mA | Sink current | 9 | ||
| Output current capability, source | IL | 10 | mA | Source current | 9 | ||
| Output voltage noise, peak-to-peak | eNp-p | 2.8 | μV p-p | 0.1 Hz to 10.0 Hz | 9 | ||
| Output voltage noise density | eN | 95.3 | nV/√Hz | 1 kHz | 9 | ||
| Thermal hysteresis, full cycle 25°C→+125°C→−40°C→25°C | ΔVOUT_HYS | -13 | ppm | Full cycle, +25°C to +125°C to −40°C to +25°C | 9 | ||
| Thermal hysteresis, half cycle 25°C→125°C→25°C | ΔVOUT_HYS | -97 | ppm | Half cycle, 25°C to 125°C to 25°C | 9 | ||
| Thermal hysteresis, full cycle 25°C→70°C→0°C→25°C | ΔVOUT_HYS | -8 | ppm | Full cycle, 25°C to 70°C to 0°C to 25°C | 9 | ||
| Thermal hysteresis, half cycle 25°C→70°C→25°C | ΔVOUT_HYS | -17 | ppm | Half cycle, 25°C to 70°C to 25°C | 9 | ||
| Long-term drift, early drift | ΔVOUT_LTD | 19 | ppm | TA = 25°C, 250 hours | 9 | ||
| Long-term drift | ΔVOUT_LTD | 25 | ppm | TA = 25°C, 1000 hours | 9 | ||
| Long-term drift | ΔVOUT_LTD | 51 | ppm | TA = 25°C, 4500 hours | 9 | ||
| Turn-on settling time | tR | 160 | µs | COUT = 0.1 µF, CIN = 0.1 µF, RLOAD = 1 kΩ | 9 | ||
| Load capacitance | 0.1 | 100 | µF | 9 | |||
| Input voltage | VIN | 5.1 | 15 | V | ADR4550 specified input range | 9 | |
| Maximum supply voltage | VIN | 16 | V | 10 | |||
| Operating temperature range | TA | -40 | 125 | °C | 10 | ||
| Storage temperature range | TSTG | -65 | 150 | °C | 10 | ||
| Junction temperature range | TJ | -65 | 150 | °C | 10 | ||
| ESD, human body model | 6 | kV | HBM | 10 | |||
| Thermal resistance, junction-to-ambient | θJA | 120 | °C/W | 8-lead SOIC, 2-layer JEDEC board | 10 | ||
| Thermal resistance, junction-to-case | θJC | 63 | °C/W | 8-lead SOIC, 1-layer JEDEC board, 100 µm TIM | 10 |
CAD (KiCad official)
- Symbol:
ADR4550ARZ-R7 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
adr4550arz-r7-etched.step/adr4550arz-r7-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);adr4550arz-r7.step/adr4550arz-r7.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Analog Devices datasheet (37 pp, sha256
48d4d0fe0ae23886, retrieved 2026-10-17, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).