Part A
ADR02BRZ
ADI公司
- Lifecycle
- Active
- Stock
- 1847 件
- Package
- SOIC-8
- Series
- PMIC-電壓參攷
Replacement verdict
Compatible functional replacement candidate
The ADR02ARZ and ADR02BRZ are functionally interchangeable voltage reference ICs sharing identical package, pinout, output voltage, and operating temperature range; the ADR02BRZ offers a tighter initial accuracy and lower temperature coefficient, making it a valid drop-in upgrade for precision-critical designs while the ADR02ARZ remains suitable for less demanding applications.
Output Voltage
High match
Package Type
High match
Operating Temperature Range
High match
Initial Accuracy and Temperature Coefficient
Validation required
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 | ADR02BRZ | Why it matters |
|---|---|---|---|
| Initial Accuracy (Vout) | ±0.1% (5 mV max) | ±0.06% (3 mV max) | Tighter initial tolerance reduces system calibration effort and improves output accuracy at power-up. |
| Temperature Coefficient | 10 ppm/°C max | 3 ppm/°C max | Lower tempco means less drift over temperature, critical for precision measurement and industrial applications. |
| Output Voltage | 5.0 V | 5.0 V | Both provide the same nominal output, so the reference voltage is functionally interchangeable. |
| Package / Mounting | 8-SOIC (surface mount) | 8-SOIC (surface mount) | Identical footprint allows drop-in replacement without PCB redesign. |
| Supply Voltage Range | 7 V to 36 V | 7 V to 36 V | Same input range ensures compatibility with the same power supply rails. |
| Output Current Capability | 10 mA (source/sink) | 10 mA (source/sink) | Matching drive capability supports the same load conditions in the target circuit. |
| Operating Temperature Range | -40 °C to +125 °C | -40 °C to +125 °C | Same temperature range ensures both parts suit the same environmental conditions. |
| Supply Current | 1 mA max | 1 mA max | Equivalent quiescent current keeps power budget unchanged when substituting parts. |
| Long-Term Stability | 25 ppm/1000 h (typical) | 25 ppm/1000 h (typical) | Long-term drift affects recalibration intervals; both grades share the same stability specification. |
Need help validating a replacement?
Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADR02BRZ | ADR02ARZ |
|---|---|---|
| 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 | ±0.06% | ±0.1% |
| Temperature Coefficient | 3ppm/°C | 10ppm/°C |
| Noise - 01 Hzto10 Hz | 10µVp-p | 10µVp-p |
| Voltage - Input | 7V ~ 36V | 7V ~ 36V |
| 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 is the main difference between the ADR02ARZ and ADR02BRZ?
The primary difference is the initial accuracy grade. The ADR02ARZ offers an initial output voltage accuracy of ±0.1%, while the ADR02BRZ offers a tighter initial accuracy of ±0.06%. Both are 5.0 V precision voltage references in an 8-lead SOIC package.
Are the ADR02ARZ and ADR02BRZ pin-compatible and package-compatible?
Yes. Both devices are offered in the same 8-lead SOIC (R-8) package with identical pin functions, so they are pin-to-pin and package-compatible. The difference is limited to the specified accuracy grade.
What is the output voltage and temperature coefficient of these references?
Both the ADR02ARZ and ADR02BRZ provide a 5.0 V output. The ADR02ARZ is specified with a temperature coefficient of 3 ppm/°C (B grade is 1 ppm/°C), while the ADR02BRZ is specified at 1 ppm/°C over the operating temperature range.
Can the ADR02ARZ be used as a drop-in replacement for the ADR02BRZ?
Functionally and mechanically yes, but the ADR02ARZ has a wider initial accuracy tolerance (±0.1% vs ±0.06%) and a higher temperature coefficient (3 ppm/°C vs 1 ppm/°C). It should only be substituted if the looser specifications still meet the design requirements.
What are the operating temperature ranges for the ADR02ARZ and ADR02BRZ?
Both devices are specified for the extended industrial temperature range of −40°C to +125°C, making them suitable for demanding industrial and instrumentation applications.
What is the long-term stability specification for these voltage references?
Both the ADR02ARZ and ADR02BRZ are specified with a long-term stability of 50 ppm per 1,000 hours at 25°C, which supports stable performance in precision measurement systems over time.
What supply voltage and current do the ADR02ARZ and ADR02BRZ require?
Both devices operate from a supply voltage of 7 V to 40 V and typically draw 0.65 mA of quiescent current, allowing them to be used in a wide range of precision analog circuits.