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Analog Devices Inc. ADR364BUJZ-R2
- Part No.:
- ADR364BUJZ-R2
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
ADR364BUJZ-R2.pdf
- Description:
- IC VREF SERIES 0.1% TSOT5
- Quantity:
- Payment:
- Shipping:
Inventory:2,414
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Product details
Overview
ADR364BUJZ-R2 from Analog Devices is a precision 4.096 V band gap voltage reference IC with sink/source capability, 9 ppm/°C temperature coefficient (B grade), ±4 mV initial accuracy, and ultralow 11 µVp-p (0.1 Hz to 10 Hz) output noise - designed for high-accuracy ADC/DAC biasing in battery-powered data acquisition systems.
For engineers reviewing the ADR364BUJZ-R2 datasheet, ADR364BUJZ-R2 pinout, ADR364BUJZ-R2 application, or ADR364BUJZ-R2 equivalent, key selection criteria include its 300 mV dropout, 190 µA max quiescent current, TSOT-5 package compatibility, and automotive-grade thermal range support up to +125°C.
Technical Context
The ADR364BUJZ-R2 implements a proprietary curvature-corrected band gap architecture where the reference is referenced to VOUT-not ground-enabling strong rejection of ground noise. Its internal trimming achieves 9 ppm/°C drift over −40°C to +125°C without external capacitors.
It delivers ±1 mA sinking and +5 mA sourcing capability while maintaining 0.735 mV/mA load regulation (sourcing) and 1.75 mV/mA (sinking) across temperature, with line regulation of 0.205 mV/V and ripple rejection of −70 dB at 60 Hz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096 V nominal; tight tolerance enables direct interface with 12-bit SAR ADCs requiring precise VREF. |
| Initial Accuracy | ±4 mV (B grade); corresponds to ±0.1% error at 4.096 V - sufficient for 12-bit system calibration without trimming. |
| Temp Coefficient | 9 ppm/°C (B grade, −40°C to +125°C); contributes ≤ ±1.1 mV drift over full industrial range. |
| Output Noise | 11 µVp-p (0.1 Hz to 10 Hz); low enough to avoid degrading ENOB in 16-bit delta-sigma ADCs. |
| Dropout Voltage | 300 mV; allows operation from 4.4 V supply - compatible with single-cell LiFePO₄ or regulated 5 V rails. |
| Quiescent Current | 190 µA max; enables >1-year battery life in 10 µA sleep-cycle portable instruments. |
| Sink/Source | +5 mA / −1 mA; supports driving ADC reference inputs and small bias networks without external buffers. |
Pinout & Package
ADR364BUJZ-R2 is housed in a 5-lead TSOT (UJ-5) package - compact, surface-mount, and optimized for thermal performance (θJA = 230°C/W). The package features exposed pad for enhanced heat dissipation and meets JEDEC MO-220 standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NIC) | Not Internally Connected | No electrical function; must be left floating or grounded per PCB layout best practices - no routing required. |
| 2 (GND) | Ground Reference | Primary return path for reference core and output stage; requires low-impedance connection to analog ground plane. |
| 3 (VIN) | Input Supply | Accepts 4.4 V to 15 V; minimum headroom is 300 mV above VOUT - dictates lowest usable supply voltage. |
| 4 (VOUT) | Stable Reference Output | Delivers 4.096 V with sink/source capability; connects directly to ADC VREF, DAC REF, or sensor excitation circuits. |
| 5 (TRIM) | Output Voltage Adjustment | Allows fine-tuning via external resistor divider; enables calibration to ±0.05% or compensation for system gain errors. |
Key Features
| Feature | Design Value |
|---|---|
| No external capacitor required | Eliminates 1–2 passive components and associated board space; simplifies layout and improves reliability in space-constrained designs. |
| Ultralow 0.1 Hz–10 Hz noise | 11 µVp-p ensures minimal contribution to total system noise floor - critical for precision weigh scales and medical ECG front-ends. |
| Low dropout (300 mV) | Enables use with low-headroom supplies like buck regulators set to 4.4 V - avoids need for higher-voltage rails or LDOs. |
| Wide operating temperature | −40°C to +125°C (B grade) supports deployment in under-hood automotive sensors and industrial PLC modules. |
| Trim terminal | Provides factory or field calibration capability via external resistors - reduces BOM cost versus laser-trimmed alternatives. |
Applications
| Portable Data Logger | Automotive Cabin Sensor Node |
|---|---|
Use Scenario: Battery-powered environmental monitor logging temperature, humidity, and pressure at 100 SPS using a 16-bit delta-sigma ADC. IC Role / Device Role / Timing Role: Provides stable 4.096 V reference for ADC conversion and sensor excitation circuitry. Use Value: 9 ppm/°C drift and 11 µVp-p noise preserve 15.8-bit ENOB across −25°C to +70°C ambient range. |
Use Scenario: Occupant detection module in vehicle seat using capacitive sensing and microcontroller-based signal processing. IC Role / Device Role / Timing Role: Supplies precision bias voltage for analog front-end amplifiers and ADC reference input. Use Value: Qualified for automotive temp range (−40°C to +125°C) and immune to ground bounce from nearby motor drivers. |
| Industrial Loop-Powered Transmitter | Handheld Medical Ultrasound Probe |
Use Scenario: 4–20 mA transmitter converting RTD measurements with HART modulation, powered from loop current. IC Role / Device Role / Timing Role: Generates accurate 4.096 V reference for RTD bridge excitation and ADC reference under 3.6 V min supply. Use Value: 300 mV dropout allows operation down to 4.4 V supply - accommodates voltage drop across HART modem and protection circuitry. |
Use Scenario: Portable ultrasound probe with integrated beamformer ASIC and low-power display controller. IC Role / Device Role / Timing Role: Supplies clean, low-noise reference for time-of-flight echo digitization and analog gain stages. Use Value: 190 µA quiescent current extends lithium-polymer battery runtime beyond 8 hours during continuous scanning. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR3440ARMZ-R7 | 4.096 V, 10 ppm/°C, ±2 mV accuracy, 12 µVp-p noise, SOIC-8 package | Higher accuracy but larger footprint and 2× quiescent current (350 µA) | Choose when tighter initial tolerance is prioritized over size and power; not suitable for TSOT-5 constrained layouts. |
| REF3340AIDBVR | 4.096 V, 10 ppm/°C, ±0.2% (±8.2 mV), 12 µVp-p, SOT-23-3, 180 µA IQ | Lower cost, smaller 3-pin package, but no TRIM pin or sinking capability | Choose for cost-sensitive, space-limited applications where trim and bidirectional drive are unnecessary. |
Compared with ADR364BUJZ-R2, ADR3440ARMZ-R7 offers better initial accuracy but sacrifices board area and power efficiency, while REF3340AIDBVR reduces size and cost but eliminates trimming and sinking functionality - making ADR364BUJZ-R2 optimal for compact, calibrated, bidirectional reference designs.
Availability
ADR364BUJZ-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 continuity.
Supply support for ADR364BUJZ-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 ADR36x family was engineered specifically for micropower, low-noise, low-dropout voltage referencing in space- and energy-constrained systems - targeting portable instrumentation, automotive sensing, and industrial IoT edge nodes.
FAQ
What is the maximum operating temperature for ADR364BUJZ-R2?
The ADR364BUJZ-R2 is rated for operation from −40°C to +125°C, meeting industrial and automotive under-hood requirements. Its B grade specification guarantees 9 ppm/°C temperature coefficient and ±4 mV initial accuracy across this full range, as confirmed in Table 5 of the Rev. E datasheet.
Does ADR364BUJZ-R2 require an output capacitor for stability?
No, the ADR364BUJZ-R2 is internally compensated and does not require an external output capacitor for stability. This is explicitly stated in the General Description and Applications Information sections, enabling simpler PCB layout and reduced BOM count.
Can ADR364BUJZ-R2 sink current, and how much?
Yes, ADR364BUJZ-R2 can sink up to −1 mA while maintaining specified accuracy and regulation. This capability is documented in the ADR364 Electrical Characteristics table (Page 6), where "Output Current" lists −1 mA for sinking, supporting active pull-down of reference nodes or bias networks.
What is the purpose of the TRIM pin on ADR364BUJZ-R2?
The TRIM pin (Pin 5) on ADR364BUJZ-R2 allows adjustment of the output voltage via an external resistor divider, enabling fine calibration to compensate for system-level gain errors or match specific ADC full-scale requirements - detailed in the Pin Function Descriptions and Applications Information sections.
Is ADR364BUJZ-R2 qualified for automotive applications?
The ADR364BUJZ-R2 itself is not automotive-qualified; only the ADR365WHUJZ-R7 and ADR365WAUJZ-R7 variants are explicitly listed as qualified for automotive use in the Ordering Guide. ADR364BUJZ-R2 is rated for industrial temperature range (−40°C to +125°C) but lacks AEC-Q100 certification.
ADR364BUJZ-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):
- 4.096V
- Voltage - Output (Max):
- -
- Current - Output:
- 5 mA
- Tolerance:
- ±0.1%
- Temperature Coefficient:
- 9ppm/°C
- Noise - 0.1Hz to 10Hz:
- 8.7µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- 3.3V ~ 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
ADR364BUJZ-R2 FAQ
1.How can I place an order for ADR364BUJZ-R2 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADR364BUJZ-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 ADR364BUJZ-R2 reliable?
The price and inventory of ADR364BUJZ-R2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADR364BUJZ-R2 is usually 5 days.
3.What payment methods are accepted for ADR364BUJZ-R2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADR364BUJZ-R2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADR364BUJZ-R2?
ADR364BUJZ-R2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADR364BUJZ-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 ADR364BUJZ-R2?
For technical support, including ADR364BUJZ-R2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADR364BUJZ-R2 requirements.
6.How does Aetrix verify that ADR364BUJZ-R2 is sourced from the original manufacturer or authorized distributors?
All ADR364BUJZ-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 ADR364BUJZ-R2 meets industry standards.
7.What is the process for return or replacement of ADR364BUJZ-R2?
All ADR364BUJZ-R2 units undergo pre-shipment inspection (PSI). If there is an issue with ADR364BUJZ-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 ADR364BUJZ-R2 part is unused and in its original packaging.
Return procedure for ADR364BUJZ-R2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADR364BUJZ-R2 Tags
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