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Analog Devices Inc. ADR5044ARTZ-R2
- Part No.:
- ADR5044ARTZ-R2
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ADR5044ARTZ-R2.pdf
- Description:
- IC VREF SHUNT 0.2% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,721
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Product details
Overview
ADR5044ARTZ-R2 from Analog Devices is a precision 4.096 V shunt voltage reference in a 3-lead SOT-23 (RT-3) package, designed for high-accuracy data acquisition and battery-powered systems. It delivers ±0.1% initial accuracy, 75 ppm/°C max temperature coefficient, and operates over −40°C to +125°C with 50 µA to 15 mA supply current range - enabling use in automotive power supplies and portable instrumentation.
For engineers reviewing the ADR5044ARTZ-R2 datasheet, ADR5044ARTZ-R2 pinout, ADR5044ARTZ-R2 application, or ADR5044ARTZ-R2 equivalent, key selection criteria include its ultralow 5.4 µVrms (0.1–10 Hz) noise, 56 µs turn-on settling time, no external capacitor requirement, and compatibility with LM4040/LM4050 circuits in space-constrained designs.
Technical Context
The ADR5044ARTZ-R2 implements a bandgap-based shunt reference architecture optimized for stability across wide current and temperature ranges. Its output voltage is trimmed at wafer level to achieve ±0.1% initial accuracy and maintains <40 ppm hysteresis after thermal cycling from −40°C to +125°C.
It functions as a two-terminal device requiring only an external bias resistor, supports any capacitive load without compensation, and exhibits 0.2 Ω dynamic output impedance - ensuring minimal voltage shift under load transients up to 10 mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096 V nominal; tight ±0.1% tolerance enables direct interface with 12-bit ADCs without calibration. |
| Initial Accuracy | ±0.1% (Grade B); corresponds to ±4.096 mV error at 100 µA, critical for factory-trimmed sensor signal chains. |
| Temp. Coefficient | 75 ppm/°C max; ensures ≤±0.31 mV drift over −40°C to +125°C, suitable for automotive under-hood applications. |
| Operating Current | 50 µA to 15 mA; ultra-low minimum current extends battery life in portable equipment. |
| Voltage Noise | 5.4 µVrms (0.1–10 Hz); low flicker noise preserves resolution in precision weigh scales and medical front-ends. |
| Settling Time | 56 µs (CLOAD = 0); fast turn-on supports duty-cycled measurement systems. |
| Dynamic Impedance | 0.2 Ω; minimizes output voltage variation during load steps in multiplexed DAQ systems. |
Pinout & Package
ADR5044ARTZ-R2 uses the 3-lead SOT-23 (RT-3) package per JEDEC TO-236-AB, with 2.20 mm × 1.35 mm footprint and 1.10 mm height - compatible with standard pick-and-place and reflow processes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Anode / Input terminal | Connected to supply rail via bias resistor; sinks current to regulate output voltage at V− node. |
| V− | Cathode / Output terminal | Provides stable 4.096 V reference; must be tied to system ground or feedback node of regulating circuit. |
| T | Trim / Temperature sense | Internally connected to bandgap core; recommended to connect to V+ for optimal stability per datasheet Note 1. |
Key Features
| Feature | Design Value |
|---|---|
| No external capacitor required | Stable with any capacitive load up to 1 µF, simplifying layout and eliminating tuning in portable designs. |
| Pin-compatible with LM4040/LM4050 | Direct drop-in replacement in existing SOT-23 shunt reference footprints, reducing redesign effort. |
| Automotive-qualified variant available | ADR5044WARTZ-R7 meets AEC-Q100 requirements; ADR5044ARTZ-R2 shares identical electrical specs and RT-3 package. |
| Extended temperature operation | Characterized from −40°C to +125°C, supporting engine control units and industrial PLC analog inputs. |
| Low power consumption | 50 µA minimum operating current enables microamp-level standby modes in energy-harvesting sensors. |
Applications
| Portable Instrumentation | Automotive Power Monitoring |
|---|---|
Use Scenario: Handheld multimeter with 16-bit SAR ADC and battery-powered operation. IC Role / Device Role / Timing Role: Shunt reference providing precise 4.096 V full-scale reference for ADC conversion. Use Value: ±0.1% initial accuracy and 75 ppm/°C TC ensure <0.02% total error over temperature without recalibration. |
Use Scenario: Onboard diagnostics module measuring 12 V battery voltage and alternator output. IC Role / Device Role / Timing Role: Stable reference for high-side current sensing amplifier and MCU ADC input scaling. Use Value: −40°C to +125°C operation and 5.4 µVrms low-frequency noise maintain measurement integrity in under-hood environments. |
| Industrial Data Acquisition | Energy Management Systems |
Use Scenario: Modular PLC analog input card acquiring thermocouple and RTD signals. IC Role / Device Role / Timing Role: Precision reference for programmable gain instrumentation amplifier and sigma-delta ADC. Use Value: 0.2 Ω dynamic impedance prevents gain error during multiplexer channel switching transients. |
Use Scenario: Smart electricity meter with isolated current/voltage sensing and metrology SoC. IC Role / Device Role / Timing Role: Reference for anti-aliasing filter calibration and ADC offset correction. Use Value: 56 µs turn-on settling enables synchronized sampling across multiple phases without reference delay skew. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar shunt voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM4040C41IDBZR | 4.096 V, ±0.5% initial accuracy, 100 ppm/°C TC, 60 µA min current | Lower accuracy and higher drift limit use in non-critical consumer-grade power monitors | Select when cost sensitivity outweighs precision requirements and extended temperature operation is not needed. |
| ADR3440ARJZ-R7 | 4.096 V, ±0.1% accuracy, 30 ppm/°C TC, but series topology (3-pin), requires ≥1.5 V headroom | Not pin-compatible; demands higher supply voltage and different biasing, unsuitable for low-voltage shunt configurations | Choose only if lower temperature drift is mandatory and board layout allows series reference implementation. |
Compared with LM4040C41IDBZR, ADR5044ARTZ-R2 offers 5× tighter initial accuracy and 30% lower temperature drift; versus ADR3440ARJZ-R7, it provides shunt topology flexibility and lower minimum operating current but trades off absolute TC performance.
Availability
ADR5044ARTZ-R2 is available at Aetrix Electronics and suitable for portable instrumentation, automotive power monitoring, and industrial data acquisition requiring stable component supply with guaranteed long-term availability.
Supply support for ADR5044ARTZ-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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.
The ADR504x family was engineered specifically for space-constrained, high-accuracy shunt reference applications - prioritizing micropower operation, wide temperature range, and ease of use in battery-powered and automotive systems.
FAQ
What is the output voltage tolerance of the ADR5044ARTZ-R2 at room temperature?
The ADR5044ARTZ-R2 has a Grade B initial accuracy of ±0.1%, meaning its output voltage is guaranteed between 4.092 V and 4.100 V when tested at 100 µA supply current and 25°C. This specification is verified during production trim and applies across the full operating current range of 50 µA to 15 mA.
Can the ADR5044ARTZ-R2 operate without an external capacitor?
Yes, the ADR5044ARTZ-R2 is designed to be stable with any capacitive load and requires no external compensation capacitor. Unlike many shunt references, its internal architecture eliminates the need for a bypass capacitor between V+ and V− terminals - simplifying PCB layout and improving reliability in portable equipment.
Is the ADR5044ARTZ-R2 pin-compatible with the LM4040 series?
Yes, the ADR5044ARTZ-R2 uses the same 3-lead SOT-23 (RT-3) package and pinout as the LM4040/LM4050 family: Pin 1 is V+, Pin 2 is V−, and Pin 3 is T (trim). This enables direct replacement in existing designs without PCB modification, provided the 4.096 V output matches the system requirement.
What is the minimum operating current for the ADR5044ARTZ-R2 over temperature?
The ADR5044ARTZ-R2 requires a minimum operating current of 60 µA across the full −40°C to +125°C temperature range. At 25°C, the minimum is 50 µA. This ultra-low current enables multi-year battery life in always-on sensor nodes and energy-harvesting applications.
Does the ADR5044ARTZ-R2 meet automotive qualification standards?
The ADR5044ARTZ-R2 itself is not AEC-Q100 qualified; however, the functionally identical ADR5044WARTZ-R7 is automotive-qualified. Both share the same RT-3 package, 4.096 V output, ±0.1% accuracy, and 75 ppm/°C TC - making ADR5044ARTZ-R2 suitable for non-safety-critical automotive subsystems where full qualification is not mandated.
ADR5044ARTZ-R2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Series:
- ADR504
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Reference Type:
- Shunt
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 4.096V
- Voltage - Output (Max):
- -
- Current - Output:
- 15 mA
- Tolerance:
- ±0.2%
- Temperature Coefficient:
- 100ppm/°C
- Noise - 0.1Hz to 10Hz:
- 5.4µVrms
- Noise - 10Hz to 10kHz:
- 240µVrms
- Voltage - Input:
- -
- Current - Supply:
- -
- Current - Cathode:
- 60 µA
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
ADR5044ARTZ-R2 FAQ
1.How can I place an order for ADR5044ARTZ-R2 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADR5044ARTZ-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 ADR5044ARTZ-R2 reliable?
The price and inventory of ADR5044ARTZ-R2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADR5044ARTZ-R2 is usually 5 days.
3.What payment methods are accepted for ADR5044ARTZ-R2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADR5044ARTZ-R2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADR5044ARTZ-R2?
ADR5044ARTZ-R2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADR5044ARTZ-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 ADR5044ARTZ-R2?
For technical support, including ADR5044ARTZ-R2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADR5044ARTZ-R2 requirements.
6.How does Aetrix verify that ADR5044ARTZ-R2 is sourced from the original manufacturer or authorized distributors?
All ADR5044ARTZ-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 ADR5044ARTZ-R2 meets industry standards.
7.What is the process for return or replacement of ADR5044ARTZ-R2?
All ADR5044ARTZ-R2 units undergo pre-shipment inspection (PSI). If there is an issue with ADR5044ARTZ-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 ADR5044ARTZ-R2 part is unused and in its original packaging.
Return procedure for ADR5044ARTZ-R2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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