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Analog Devices Inc. ADR02BRZ
- Part No.:
- ADR02BRZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ADR02BRZ.pdf
- Description:
- IC VREF SERIES 0.06% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:11,526
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Product details
Overview
ADR02BRZ from Analog Devices is a precision 5.0 V band gap voltage reference IC with ±0.1% initial accuracy, 3 ppm/°C typical temperature coefficient (8-lead SOIC, A grade), and 10 µVp-p low-frequency noise (0.1 Hz to 10 Hz). It operates from 7.0 V to 36.0 V supply, delivers up to 10 mA output current, and supports industrial temperature range (−40°C to +125°C). It serves as a stable reference in high-resolution ADCs and precision data acquisition systems.
For engineers reviewing the ADR02BRZ datasheet, ADR02BRZ pinout, ADR02BRZ application, or ADR02BRZ equivalent, this page provides verified specifications, package mapping, thermal performance, real-world load/line regulation behavior, and validated alternative options for precision analog signal chains requiring stable 5.0 V reference voltage under wide input and temperature conditions.
Technical Context
The ADR02BRZ implements a trimmed band gap core with on-chip TRIM pin for fine output adjustment and TEMP pin enabling external temperature sensing (550 mV baseline, 1.96 mV/°C sensitivity). Its architecture supports no external capacitor operation while maintaining stability across 0–10 mA loads and −40°C to +125°C.
It features 2 V dropout voltage, −75 dB ripple rejection at 10 kHz, 4 µs turn-on settling time, and 50 ppm long-term stability over 1000 hours - all specified under full industrial temperature range without derating. The SOIC-8 package variant (BRZ) is pin-compatible with REF02.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.000 V nominal; tightly regulated ±0.005 V (B grade) ensures ≤0.1% error in 16-bit+ converter reference paths. |
| Initial Accuracy | ±0.1% (±5 mV); enables single-point calibration elimination in factory-trimmed instrumentation. |
| Temp Coefficient | 3 ppm/°C typical (SOIC-8, A grade); contributes <0.03% drift over −40°C to +125°C span. |
| Voltage Noise | 10 µVp-p (0.1 Hz–10 Hz); critical for low-noise weigh-scale and sensor front-end references. |
| Supply Range | 7.0 V to 36.0 V; accommodates unregulated 12 V/24 V industrial rails with 2 V headroom margin. |
| Output Current | 10 mA max; sufficient to drive SAR ADC reference inputs and buffer op-amps without external gain stage. |
| Operating Temp | −40°C to +125°C; qualified for under-hood automotive and industrial control environments. |
Pinout & Package
ADR02BRZ is supplied in an 8-lead SOIC (R-8) package with standard surface-mount footprint (5.0 mm × 6.2 mm, 1.75 mm height). Thermal resistance θJA = 130°C/W, θJC = 43°C/W.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VOUT | Stable 5.0 V reference output; connects directly to ADC REF+ or precision DAC reference input. |
| 2 | TRIM | Adjustment node for ±0.5% fine-tuning via external resistor divider; used in metrology-grade calibration. |
| 3 | NIC | No internal connection; left floating or grounded per layout best practice to minimize parasitic coupling. |
| 4 | NIC | No internal connection; unused pin; maintain clearance from noisy traces. |
| 5 | VIN | Input supply (7–36 V); requires local 0.1 µF ceramic decoupling per datasheet recommendation. |
| 6 | TEMP | Temperature-sensing output (550 mV @ 25°C, 1.96 mV/°C); enables on-board thermal compensation without external sensor. |
| 7 | NIC | No internal connection; electrically isolated; avoid routing high-speed signals nearby. |
| 8 | GND | Analog ground return; must connect to clean AGND plane with low-inductance path to VIN decoupling cap. |
Key Features
| Feature | Design Value |
|---|---|
| Ultracompact SOIC-8 packaging | Enables placement in space-constrained PCB layouts (e.g., modular I/O cards, portable test equipment). |
| Pin compatibility with REF02 | Allows drop-in replacement in legacy REF02-based designs without PCB revision or firmware change. |
| Integrated temperature sensor | Eliminates need for discrete thermistor or digital sensor in applications requiring reference drift compensation. |
| No external capacitor required | Reduces BOM count and board area; simplifies layout while maintaining stability across full load/temperature range. |
| Automotive-qualified A grade option | SOIC-8 A grade meets AEC-Q100 stress testing; suitable for battery monitoring and ADAS power domain references. |
Applications
| Precision Data Acquisition | Industrial Process Control |
|---|---|
Use Scenario: 24-bit sigma-delta ADC measuring strain gauge or RTD signals in PLC analog input modules. IC Role / Device Role / Timing Role: Primary voltage reference for ADC reference input (REF+), defining full-scale range and LSB weight. Use Value: 3 ppm/°C tempco and 10 µVp-p noise ensure <0.001% measurement uncertainty over operating temperature. |
Use Scenario: Loop-powered 4–20 mA transmitter with HART modulation in hazardous-area field instruments. IC Role / Device Role / Timing Role: Stable 5.0 V reference for DAC and current-sense amplifier biasing within isolated analog front end. Use Value: 10 mA drive capability and 7–36 V input range support direct connection to 24 V loop supply without LDO pre-regulation. |
| Auto Battery Monitoring | PCMCIA Card Power Management |
Use Scenario: Onboard diagnostics system measuring 12 V battery voltage and alternator output in engine control units. IC Role / Device Role / Timing Role: Reference for microcontroller's internal ADC channel sampling battery rail through resistive divider. Use Value: −40°C to +125°C rating and automotive qualification ensure reliable operation in under-hood thermal cycling. |
Use Scenario: Legacy PCMCIA memory or modem card requiring precise 5.0 V reference for EEPROM programming and interface logic. IC Role / Device Role / Timing Role: Low-power, capacitor-free reference supplying stable voltage to serial EEPROM and level-shifting buffers. Use Value: 0.65 mA quiescent current and SC70/TSOT variants enable ultra-low standby power in hot-plug applications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF02CSZ | Same 5.0 V output, ±0.2% initial accuracy, 25 ppm/°C max tempco (SOIC-8), higher 1.5 mA quiescent current. | Lacks TEMP pin and TRIM capability; not suitable for temperature-compensated or fine-calibrated designs. | Select REF02CSZ only when cost sensitivity outweighs need for trimming or on-die thermal sensing. |
| ADR02ARZ | Identical SOIC-8 package and pinout; tighter 3 ppm/°C typical tempco (A grade vs. B grade), same ±0.1% initial accuracy. | Superior long-term stability (50 ppm/1000 hrs) and lower noise floor; preferred for metrology and calibration equipment. | Choose ADR02ARZ where extended temperature stability and lowest possible drift dominate over marginal cost increase. |
Compared with REF02CSZ, ADR02BRZ adds TRIM and TEMP functionality with lower noise and better tempco; versus ADR02ARZ, it trades minor tempco degradation (3 ppm/°C typ → 3 ppm/°C typ still holds for BRZ per datasheet Table 3 footnote) for broader availability and optimized cost in volume production.
Availability
ADR02BRZ is available at Aetrix Electronics and suitable for precision data acquisition systems, industrial process controllers, and automotive battery monitoring applications requiring stable component supply, long-lifecycle assurance, and traceable sourcing.
Supply support for ADR02BRZ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.
The ADR02BRZ belongs to the ADR0x family of ultracompact precision voltage references designed for space-constrained, high-accuracy analog systems - especially where low drift, low noise, and wide supply range are mandatory.
FAQ
What is the maximum input voltage rating for ADR02BRZ?
The absolute maximum supply voltage for ADR02BRZ is 36.0 V, with recommended operating range from 7.0 V to 36.0 V. Exceeding 36.0 V risks permanent damage per Absolute Maximum Ratings table. The device maintains regulation down to 7.0 V input, delivering full 10 mA output with 2 V dropout margin.
Does ADR02BRZ require an external output capacitor?
No, ADR02BRZ is internally compensated and does not require an external output capacitor for stability - a key design advantage confirmed in the General Description and Applications Information sections. However, a 0.1 µF ceramic capacitor on VIN is recommended for high-frequency noise suppression.
What is the function of the TEMP pin on ADR02BRZ?
The TEMP pin on ADR02BRZ outputs a ratiometric voltage (550 mV at 25°C) with 1.96 mV/°C sensitivity, enabling direct temperature measurement or reference drift compensation. It is not a dedicated temperature sensor IC but provides calibrated analog output usable with a second ADC channel.
Is ADR02BRZ pin-compatible with REF02?
Yes, the SOIC-8 version of ADR02BRZ is pin-to-pin compatible with REF02, including identical VOUT, TRIM, VIN, GND, and NC pin assignments. This allows direct substitution in existing REF02 layouts, though ADR02BRZ adds functional enhancements like improved tempco and integrated TEMP sensing.
What grade and package does ADR02BRZ correspond to?
ADR02BRZ denotes the B grade (±0.1% initial accuracy, 3 ppm/°C typical tempco in SOIC-8) in an 8-lead SOIC (R-8) package. The "BRZ" suffix follows Analog Devices' ordering convention: "B" = B grade, "R" = SOIC-8, "Z" = lead-free/RoHS-compliant finish.
ADR02BRZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±0.06%
- Temperature Coefficient:
- 3ppm/°C
- Noise - 0.1Hz to 10Hz:
- 10µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- 7V ~ 36V
- Current - Supply:
- 1mA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
ADR02BRZ FAQ
1.How can I place an order for ADR02BRZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADR02BRZ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ADR02BRZ reliable?
The price and inventory of ADR02BRZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADR02BRZ is usually 5 days.
3.What payment methods are accepted for ADR02BRZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADR02BRZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADR02BRZ?
ADR02BRZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADR02BRZ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ADR02BRZ?
For technical support, including ADR02BRZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADR02BRZ requirements.
6.How does Aetrix verify that ADR02BRZ is sourced from the original manufacturer or authorized distributors?
All ADR02BRZ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADR02BRZ meets industry standards.
7.What is the process for return or replacement of ADR02BRZ?
All ADR02BRZ units undergo pre-shipment inspection (PSI). If there is an issue with ADR02BRZ, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ADR02BRZ part is unused and in its original packaging.
Return procedure for ADR02BRZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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