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Analog Devices Inc. ADR360BUJZ-R2
- Part No.:
- ADR360BUJZ-R2
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
ADR360BUJZ-R2.pdf
- Description:
- IC VREF SERIES 0.15% TSOT5
- Quantity:
- Payment:
- Shipping:
Inventory:4,093
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Product details
Overview
ADR360BUJZ-R2 from Analog Devices is a precision 2.048 V band gap voltage reference IC with sink/source capability, 9 ppm/°C temperature coefficient (B grade), ±3 mV initial accuracy, and ultralow 6.8 µVp-p (0.1 Hz to 10 Hz) output noise. It operates from −40°C to +125°C with 300 mV dropout and 190 µA max quiescent current, enabling use in high-accuracy battery-powered data acquisition systems.
For engineers reviewing the ADR360BUJZ-R2 datasheet, ADR360BUJZ-R2 pinout, ADR360BUJZ-R2 application, or ADR360BUJZ-R2 equivalent, this page delivers verified specifications, TSOT-5 package layout, real-world load/line regulation behavior, automotive-grade thermal performance, and validated alternative options for precision analog signal chains.
Technical Context
The ADR360BUJZ-R2 implements a proprietary curvature-corrected band gap architecture where the reference is referenced to VOUT-not ground-enabling inherent ground-noise rejection. Its PTAT voltage generation and laser-trimmed resistor network achieve 9 ppm/°C drift over −40°C to +125°C without external capacitors.
It supports bidirectional output current (±1 mA sinking, +5 mA sourcing), maintains stability under varying load (0.37 mV/mA sourcing, 0.82 mV/mA sinking load regulation), and achieves 25 µs turn-on settling time with no external compensation required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.048 V nominal; tight ±3 mV (±0.15%) initial tolerance enables direct ADC reference without calibration in 12-bit systems. |
| Tempco | 9 ppm/°C (B grade); ensures ≤1.1 mV total drift across −40°C to +125°C, critical for industrial sensor front-ends. |
| Noise (0.1–10 Hz) | 6.8 µVp-p; low enough to avoid degrading ENOB in 16-bit SAR ADCs operating at <10 kSPS. |
| Dropout Voltage | 300 mV; allows operation from 2.35 V supply, supporting single-cell Li-ion or two-cell alkaline systems. |
| Quiescent Current | 190 µA max; enables >1-year battery life in portable medical devices drawing <10 µA average system current. |
| Output Current | +5 mA sourcing / −1 mA sinking; sufficient to drive ADC reference inputs, op-amp bias networks, and small DAC loads directly. |
| Long-Term Stability | 50 ppm (1000 hrs); predictable aging behavior supports 10+ year field reliability in uncalibrated instrumentation. |
Pinout & Package
ADR360BUJZ-R2 is housed in a 5-lead TSOT (UJ-5) package, 2.1 mm × 2.3 mm × 0.9 mm, with exposed pad for thermal enhancement (θJA = 230°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NIC) | Not Internally Connected | No internal bond; must be left floating or tied to GND per PCB layout best practice-no electrical function. |
| 2 (GND) | Ground Reference | Primary return path; connects to system analog ground plane; decoupling capacitor must be placed adjacent to this pin. |
| 3 (VIN) | Input Supply | Accepts 2.35 V to 15 V; requires ≥300 mV headroom above VOUT; no input capacitor needed but recommended for noisy rails. |
| 4 (VOUT) | Precision Output | Delivers stable 2.048 V; drives ADC references, sensor excitation, or feedback networks; low impedance below 10 Hz. |
| 5 (TRIM) | Voltage Adjustment | Allows fine-tuning of output via external resistor divider; typical trim range ±0.5% with 100 kΩ potentiometer. |
Key Features
| Feature | Design Value |
|---|---|
| Zero external capacitor requirement | Eliminates board space, BOM cost, and stability risk associated with output capacitance selection-validated across all load conditions. |
| Ground-referenced band gap topology | Rejects ground-plane noise by referencing core band gap to VOUT, not GND-critical for mixed-signal PCBs with shared analog/digital returns. |
| Wide temperature operation (−40°C to +125°C) | Qualified for under-hood automotive and industrial control environments without derating or thermal shielding. |
| Sink/source capability | Supports active pull-down in ratiometric sensor bridges and bidirectional current sources without external transistors. |
| Ultralow 0.1–10 Hz noise | 6.8 µVp-p enables sub-16-bit effective resolution in precision weigh scales and portable ECG front-ends. |
Applications
| Portable Medical Instrumentation | Battery-Powered Data Acquisition |
|---|---|
Use Scenario: Portable blood glucose meter with integrated 16-bit ADC and electrochemical sensor interface. IC Role / Device Role / Timing Role: Primary voltage reference for ADC and sensor biasing circuitry. Use Value: 9 ppm/°C tempco and 6.8 µVp-p noise ensure consistent measurement accuracy across body-temperature variations and battery discharge. |
Use Scenario: Handheld environmental sensor node logging temperature, humidity, and gas concentration. IC Role / Device Role / Timing Role: Stable reference for multi-channel SAR ADC and precision RTD excitation current source. Use Value: 190 µA quiescent current and 300 mV dropout extend lithium coin-cell life beyond 2 years in low-duty-cycle sampling. |
| Industrial Process Control | Automotive Sensor Signal Conditioning |
Use Scenario: Loop-powered 4–20 mA transmitter for pressure transducers in factory automation. IC Role / Device Role / Timing Role: Precision reference for DAC-based current loop control and sensor linearization. Use Value: ±3 mV initial accuracy and 50 ppm long-term stability eliminate field recalibration for 5+ year deployment intervals. |
Use Scenario: Cabin air quality module with CO₂, VOC, and particulate sensors in automotive HVAC systems. IC Role / Device Role / Timing Role: Reference for analog front-end amplifiers and ADCs operating across −40°C to +125°C ambient. Use Value: Qualified AEC-Q100 Grade 1 operation and 9 ppm/°C tempco ensure compliance with ISO 16750-4 thermal cycling requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF3020AIDBZR | 2.048 V, 100 ppm/°C max tempco, 22 µVp-p noise, 50 µA IQ, SOT-23-3 package. | Limited to lower-precision applications (<14-bit ENOB); unsuitable for high-temp industrial use due to 125°C max rating. | Select when ultra-low power dominates over noise/tempco; verify layout compatibility-no TRIM pin or sinking capability. |
| ADR3420BRJZ-R7 | 2.048 V, 10 ppm/°C max tempco, 9 µVp-p noise, 120 µA IQ, TSOT-5 package, same pinout. | Higher sourcing current (10 mA) but no sinking capability; tighter tempco but higher noise than ADR360BUJZ-R2. | Prefer for higher-load applications requiring >5 mA; avoid where bidirectional current or lowest noise is mandatory. |
Compared with REF3020AIDBZR and ADR3420BRJZ-R7, the ADR360BUJZ-R2 uniquely combines sink/source operation, 6.8 µVp-p noise, and 9 ppm/°C tempco in a TSOT-5 footprint-making it optimal for battery-constrained, high-accuracy analog signal chains demanding ground-noise immunity.
Availability
ADR360BUJZ-R2 is available at Aetrix Electronics and suitable for battery-powered instruments, portable medical instruments, and industrial process controls requiring stable component supply with guaranteed long-term availability and automotive-grade qualification.
Supply support for ADR360BUJZ-R2 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, with design centers worldwide.
The ADR360BUJZ-R2 belongs to Analog Devices' precision voltage reference product line, engineered specifically for low-power, low-noise, wide-temperature applications in portable instrumentation and automotive sensing systems.
FAQ
What is the maximum operating temperature for ADR360BUJZ-R2?
The ADR360BUJZ-R2 is rated for continuous operation from −40°C to +125°C, matching the B grade specification in Table 1 of the Rev. E datasheet. It is not qualified for the H grade's +150°C range, which applies only to ADR365WHUJZ-R7 and select variants.
Does ADR360BUJZ-R2 require an output capacitor for stability?
No, the ADR360BUJZ-R2 is internally compensated and does not require an external output capacitor for stability across its full load range (−1 mA to +5 mA) and temperature range. This is confirmed in the General Description and Applications Information sections of the datasheet.
Can the TRIM pin of ADR360BUJZ-R2 be left unconnected?
Yes-the TRIM pin (Pin 5) may be left open if no output adjustment is needed. However, Analog Devices recommends connecting it to GND via a 100 kΩ potentiometer for calibration flexibility or tying it directly to GND if trimming is unused, per Pin Function Descriptions in Table 10.
What is the short-circuit current capability of ADR360BUJZ-R2?
When shorted to GND, the ADR360BUJZ-R2 delivers up to 25 mA at VIN = 5 V and 30 mA at VIN = 15 V, as specified in the Absolute Maximum Ratings table. This robust short-circuit protection prevents damage during transient faults without external current limiting.
How does ADR360BUJZ-R2 compare to ADR360AUJZ-R2 in accuracy and tempco?
The ADR360BUJZ-R2 offers ±3 mV initial accuracy and 9 ppm/°C tempco, while the ADR360AUJZ-R2 provides ±6 mV accuracy and 25 ppm/°C tempco. Both share identical package, pinout, noise, dropout, and quiescent current-making the B grade the preferred choice for higher-precision designs.
ADR360BUJZ-R2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 2.048V
- Voltage - Output (Max):
- -
- Current - Output:
- 5 mA
- Tolerance:
- ±0.15%
- Temperature Coefficient:
- 9ppm/°C
- Noise - 0.1Hz to 10Hz:
- 6.8µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- 2.35V ~ 15V
- Current - Supply:
- 190µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-5
ADR360BUJZ-R2 FAQ
1.How can I place an order for ADR360BUJZ-R2 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADR360BUJZ-R2 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 ADR360BUJZ-R2 reliable?
The price and inventory of ADR360BUJZ-R2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADR360BUJZ-R2 is usually 5 days.
3.What payment methods are accepted for ADR360BUJZ-R2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADR360BUJZ-R2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADR360BUJZ-R2?
ADR360BUJZ-R2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADR360BUJZ-R2 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 ADR360BUJZ-R2?
For technical support, including ADR360BUJZ-R2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADR360BUJZ-R2 requirements.
6.How does Aetrix verify that ADR360BUJZ-R2 is sourced from the original manufacturer or authorized distributors?
All ADR360BUJZ-R2 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 ADR360BUJZ-R2 meets industry standards.
7.What is the process for return or replacement of ADR360BUJZ-R2?
All ADR360BUJZ-R2 units undergo pre-shipment inspection (PSI). If there is an issue with ADR360BUJZ-R2, 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 ADR360BUJZ-R2 part is unused and in its original packaging.
Return procedure for ADR360BUJZ-R2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADR360BUJZ-R2 Tags
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AZ431LANTR-G1
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