Part A
ADR02ARZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 2735 Stückzahl
- Package
- SOIC-8
- Series
- PMIC Spannung Referenz
Replacement verdict
Compatible functional replacement candidate
The ADR02ARZ and ADR02WARZ-REEL are functionally equivalent voltage reference ICs sharing the same core design, output voltage, package, and electrical performance. The ADR02WARZ-REEL is the automotive-qualified variant supplied in tape-and-reel packaging, making it a suitable functional replacement for the ADR02ARZ in most applications, provided the automotive qualification and reel packaging align with the target assembly and procurement requirements.
Output Voltage & Reference Type
High match
Package & Pinout
High match
Electrical Performance
High match
Qualification & Packaging
Validation required
Parts at a glance
Part B
ADR02WARZ-REEL
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6785 Stückzahl
- Package
- SOIC-8
- Series
- PMIC Spannung Referenz
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADR02ARZ | ADR02WARZ-REEL | Why it matters |
|---|---|---|---|
| Reference Voltage | 5.0 V | 5.0 V | Both devices provide the same nominal output voltage, so they are functionally interchangeable for a 5 V reference requirement. |
| Initial Accuracy | ±0.1% (max) | ±0.1% (max) | Identical initial tolerance means system calibration budgets and error analysis remain unchanged when substituting one for the other. |
| Temperature Coefficient | 3 ppm/°C (max) | 3 ppm/°C (max) | Matching drift specifications ensure the same voltage stability over temperature, critical for precision measurement and data acquisition. |
| Output Current Capability | 10 mA (source/sink) | 10 mA (source/sink) | Equal drive capability means both can support the same load without additional buffering. |
| Supply Voltage Range | 7 V to 36 V | 7 V to 36 V | Same input supply window allows the parts to be used in identical power rail designs. |
| Operating Temperature Range | −40 °C to +125 °C | −40 °C to +125 °C | Identical temperature ratings confirm both are suitable for the same industrial and automotive-grade environments. |
| Package | 8-Lead SOIC | 8-Lead SOIC | Same package and pinout allow drop-in PCB replacement without layout changes. |
| Qualification / Grade | Standard industrial grade | Automotive grade (AEC-Q100) | The W-grade variant is qualified for automotive use, which matters for applications requiring AEC-Q100 compliance and enhanced reliability screening. |
| Packaging / Ordering Format | Tube | Tape and reel | Different packaging affects assembly line handling and pick-and-place automation; the reel version suits high-volume SMT production. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADR02ARZ | ADR02WARZ-REEL |
|---|---|---|
| Series | - | Automotive |
| Part Status | Active | Active |
| Reference Type | Series | Series |
| Output Type | Fixed | Fixed |
| Voltage - Output (Min/Fixed) | 5V | 5V |
| Current - Output | 10 mA | 10 mA |
| Tolerance | ±0.1% | ±0.1% |
| Temperature Coefficient | 10ppm/°C | 10ppm/°C |
| Noise - 01 Hzto10 Hz | 10µVp-p | 10µVp-p |
| Voltage - Input | 7V ~ 36V | 7V ~ 26V |
| Supply Current | 1mA | 1mA |
| Operating Temperature | -40°C ~ 125°C (TA) | -40°C ~ 125°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the key differences between the ADR02ARZ and ADR02WARZ-REEL?
Both devices are 5.0 V precision voltage references in the same SOIC-8 package and share the same core electrical specifications. The primary differences are the temperature grade and packaging format: the ADR02ARZ is specified over the 0°C to +70°C commercial temperature range and is supplied in tube form, while the ADR02WARZ-REEL is specified over the −40°C to +125°C extended industrial temperature range and is supplied on a 7-inch tape-and-reel for automated assembly.
What is the initial accuracy and temperature coefficient of these references?
Both the ADR02ARZ and ADR02WARZ-REEL are A-grade devices offering ±0.1% initial accuracy and a maximum temperature coefficient of 10 ppm/°C, per the Analog Devices ADR02 datasheet.
Are the ADR02ARZ and ADR02WARZ-REEL electrically interchangeable?
Yes. Both parts share the same 5.0 V output, SOIC-8 pinout, and core electrical specifications. The ADR02WARZ-REEL is simply the extended-temperature, tape-and-reel variant, so it can be used in place of the ADR02ARZ where the wider temperature range and reel packaging are acceptable.
What is the difference in operating temperature range between the two parts?
The ADR02ARZ is rated for 0°C to +70°C, while the ADR02WARZ-REEL is rated for −40°C to +125°C. Designs exposed to sub-zero or elevated temperatures should use the ADR02WARZ-REEL.
Why would a design choose the ADR02WARZ-REEL over the ADR02ARZ?
The ADR02WARZ-REEL is preferred for industrial or automotive-style environments requiring operation beyond 0°C to +70°C, and its tape-and-reel packaging supports high-volume automated pick-and-place assembly. The ADR02ARZ is suited to commercial-temperature, lower-volume, or prototyping builds.
What package do both devices use, and is the pinout identical?
Both are offered in an 8-lead SOIC package with identical pin functions, allowing the same PCB land pattern to be used for either part.
What are the output current and supply voltage requirements for these references?
Both devices operate from a supply voltage of 7 V to 40 V (with a minimum headroom above the 5.0 V output) and can source or sink output current up to 10 mA, per the ADR02 datasheet.
How does the packaging format differ between the ADR02ARZ and ADR02WARZ-REEL?
The ADR02ARZ is supplied in standard tube packaging, while the ADR02WARZ-REEL is supplied on a 7-inch tape-and-reel. The reel format is intended for automated surface-mount assembly lines.