Part A
ADR02BRZ
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 1847 個数
- Package
- SOIC-8
- Series
- PMIC - 電圧リファレンス
Replacement verdict
Compatible functional replacement candidate
The ADR02BRZ and ADR02CRZ-REEL are functionally compatible voltage reference ICs sharing the same package, pinout, output voltage, and operating temperature range, making them viable substitutes in most designs. The primary distinction is the initial accuracy grade, where the BRZ offers a tighter tolerance than the CRZ-REEL, so the CRZ-REEL can serve as a drop-in replacement for the BRZ only when the relaxed initial accuracy is acceptable for the target application.
Output Voltage
High match
Package Type
High match
Operating Temperature Range
High match
Initial Accuracy Grade
Validation required
Parts at a glance
Part B
ADR02CRZ-REEL
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 9313 個数
- Package
- SOIC-N-8
- Series
- PMIC - 電圧リファレンス
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADR02BRZ | ADR02CRZ-REEL | Why it matters |
|---|---|---|---|
| Initial Accuracy (Vout Tolerance) | ±0.06% (max) | ±0.1% (max) | Tighter initial tolerance reduces system calibration effort and directly affects the absolute accuracy of the reference voltage at room temperature. |
| Temperature Coefficient (TCVout) | 3 ppm/°C (max) | 5 ppm/°C (max) | Lower tempco limits drift over the operating temperature range, which is critical for precision measurement and industrial applications. |
| Output Voltage | 5.000 V | 5.000 V | Both provide the same nominal 5 V reference, so the target system voltage requirement is satisfied by either part. |
| Package / Mounting | 8-SOIC (surface mount) | 8-SOIC (surface mount) | Identical footprint and package allow drop-in board replacement without layout changes. |
| Supply Voltage Range | 7 V to 36 V | 7 V to 36 V | Matching input supply range ensures the same power rail can drive either device. |
| Operating Temperature Range | -40 °C to +125 °C | -40 °C to +125 °C | Equivalent temperature ratings confirm both parts suit the same environmental conditions. |
| Output Current Capability | 10 mA (source/sink) | 10 mA (source/sink) | Same drive capability means either reference can support the same load without buffering. |
| Supply Current (Quiescent) | 1 mA (typ) | 1 mA (typ) | Identical quiescent current keeps power budget unchanged when substituting parts. |
| Output Noise (0.1 Hz to 10 Hz) | 15 µV p-p (typ) | 15 µV p-p (typ) | Matching low-frequency noise performance preserves resolution in high-precision ADC/DAC designs. |
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 | ADR02CRZ-REEL |
|---|---|---|
| Part Status | Active | Obsolete |
| 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 | 40ppm/°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 are the key differences between the ADR02BRZ and ADR02CRZ-REEL?
Both devices are 5.0 V precision voltage references in the same SOIC-8 package and share the same operating temperature range of −40°C to +125°C. The primary difference is the initial accuracy and temperature coefficient grade: the ADR02BRZ is specified with an initial accuracy of ±0.06% (3 mV) and a temperature coefficient of 3 ppm/°C, while the ADR02CRZ-REEL is specified with an initial accuracy of ±0.1% (5 mV) and a temperature coefficient of 5 ppm/°C. The ADR02CRZ-REEL is supplied in tape-and-reel packaging, whereas the ADR02BRZ is supplied in tube packaging.
Are the ADR02BRZ and ADR02CRZ-REEL pin-compatible?
Yes. Both parts are offered in the same 8-lead SOIC package with identical pin functions, so they are pin-compatible and can share the same PCB land pattern. Electrical grade differences must still be validated against the target design requirements.
What is the output voltage and operating temperature range of these references?
Both the ADR02BRZ and ADR02CRZ-REEL provide a fixed 5.0 V output and are specified for operation over the −40°C to +125°C temperature range.
Can the ADR02CRZ-REEL be used as a drop-in replacement for the ADR02BRZ?
Because both parts share the same package, pinout, and 5.0 V output, the ADR02CRZ-REEL can be considered for designs where the looser ±0.1% initial accuracy and 5 ppm/°C temperature coefficient are acceptable. The ADR02BRZ offers tighter ±0.06% initial accuracy and 3 ppm/°C drift, so substituting the C-grade part for the B-grade part reduces precision and should be validated against the system error budget.
Why is the ADR02CRZ-REEL supplied in tape-and-reel while the ADR02BRZ is not?
The ADR02CRZ-REEL suffix indicates tape-and-reel packaging, which is intended for automated high-volume SMT assembly lines. The ADR02BRZ is supplied in tube packaging, which is typically used for lower-volume or prototype assembly. The packaging difference does not affect the electrical specifications of the device.
Do both parts share the same long-term stability and thermal hysteresis specifications?
Both devices are members of the same ADR02 family and share the family-level long-term stability and thermal hysteresis characteristics as documented in the manufacturer datasheet. Grade-specific differences are limited to initial accuracy and temperature coefficient; designers should confirm the exact limits in the official datasheet for the specific grade ordered.
Which grade should be selected for a precision data acquisition design?
For designs with tight error budgets, the ADR02BRZ is the higher-precision option, offering ±0.06% initial accuracy and 3 ppm/°C temperature coefficient versus ±0.1% and 5 ppm/°C for the ADR02CRZ-REEL. The ADR02CRZ-REEL is appropriate where the wider tolerances are acceptable and tape-and-reel packaging is preferred for production.