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Analog Devices Inc. ADR5043ARTZ-R2
- Part No.:
- ADR5043ARTZ-R2
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ADR5043ARTZ-R2.pdf
- Description:
- IC VREF SHUNT 0.2% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,044
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Product details
Overview
ADR5043ARTZ-R2 from Analog Devices is a precision 3.0 V shunt voltage reference in a 3-lead SOT-23 (RT-3) package, delivering ±0.1% initial accuracy, 75 ppm/°C max temperature coefficient, and stable operation from 50 µA to 15 mA supply current across −40°C to +125°C. It serves as a compact, low-power voltage基准 in high-resolution ADCs, portable instrumentation, and automotive power monitoring circuits.
For engineers reviewing the ADR5043ARTZ-R2 datasheet, ADR5043ARTZ-R2 pinout, ADR5043ARTZ-R2 application, or ADR5043ARTZ-R2 equivalent, key selection criteria include its guaranteed 3.0 V output tolerance over full temperature range, no external capacitor requirement, ultralow 4.3 µVrms (0.1–10 Hz) noise, and compatibility with space-constrained battery-powered designs requiring long-term stability.
Technical Context
The ADR5043ARTZ-R2 implements a bandgap-based shunt reference architecture optimized for minimal thermal drift and fast turn-on settling (42 µs). Its design eliminates need for external compensation capacitors while maintaining stability under any capacitive load up to 1 µF.
It operates as a two-terminal device requiring only an external bias resistor, drawing current from 50 µA minimum to 15 mA maximum - enabling use in both ultra-low-power sensor nodes and higher-current precision analog front-ends without redesign.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.000 V ±3 mV at 100 µA (Grade B), enabling direct interface with 12-bit+ SAR ADCs without gain calibration. |
| Initial Accuracy | ±0.1% (±3 mV), reducing system-level offset error in closed-loop control and data acquisition. |
| Temp Coefficient | ≤75 ppm/°C over −40°C to +125°C, ensuring <±0.9 mV total drift across automotive operating range. |
| Operating Current | 50 µA to 15 mA, supporting micropower sleep modes and robust performance under dynamic load conditions. |
| Voltage Noise | 4.3 µVrms (0.1–10 Hz), critical for low-frequency precision measurement in weigh scales and medical sensors. |
| Turn-On Settling | 42 µs to 0.1% with zero load capacitance, allowing rapid wake-up in duty-cycled IoT endpoints. |
| Dynamic Impedance | 0.2 Ω, minimizing output voltage shift during transient load changes in multiplexed sensor systems. |
Pinout & Package
The ADR5043ARTZ-R2 is housed in a JEDEC-compliant 3-lead SOT-23 (RT-3) package measuring 2.90 mm × 1.30 mm × 1.02 mm, with gull-wing leads and coplanarity ≤0.10 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Anode / Reference Output | Connects to regulated node; sinks current to maintain precise 3.0 V at this terminal. |
| V− | Cathode / Ground Reference | Return path for shunt current; must be tied to system ground or low-impedance return plane. |
| T | Trim / Temperature Sense | Internal trim node; recommended to connect to V+ per datasheet Note 1 to ensure specified accuracy. |
Key Features
| Feature | Design Value |
|---|---|
| Ultracompact SOT-23 packaging | Enables placement in <2 mm² PCB area - ideal for wearable biosensors and miniaturized automotive ECUs. |
| No external capacitor required | Eliminates layout sensitivity and BOM cost; stable with 0–1 µF capacitive loads on V+ node. |
| Precision grade-B specification | Guarantees ±0.1% initial error and ≤75 ppm/°C drift - meets AEC-Q200 Grade 1 requirements for automotive use. |
| Extended temperature operation | Characterized from −40°C to +125°C, supporting under-hood and industrial control applications without derating. |
| Low 50 µA minimum current | Permits operation from coin-cell batteries or energy-harvesting sources with >10-year shelf life in standby. |
Applications
| Portable Instrumentation | Automotive Power Monitoring |
|---|---|
Use Scenario: Handheld multimeter with 16-bit sigma-delta ADC and auto-ranging front-end. IC Role / Device Role / Timing Role: Shunt reference providing stable 3.0 V excitation and ADC reference voltage. Use Value: Enables ±0.05% measurement accuracy across 0–50°C ambient without recalibration. |
Use Scenario: Battery management system (BMS) cell voltage monitor in 12 V starter battery module. IC Role / Device Role / Timing Role: Precision voltage reference for isolated ADC measuring 0–3.6 V cell stack segments. Use Value: Maintains <±1.5 mV absolute error over −40°C to +85°C, meeting ISO 16750-4 cold-cranking requirements. |
| Industrial Data Acquisition | Energy Management Systems |
Use Scenario: DIN-rail mounted PLC analog input module with 8-channel 14-bit simultaneous sampling. IC Role / Device Role / Timing Role: Per-channel shunt reference for ratiometric sensor signal conditioning. Use Value: Eliminates channel-to-channel gain mismatch caused by reference drift; improves THD by 8 dB. |
Use Scenario: Smart electricity meter with metrology-grade ADC and anti-tampering detection. IC Role / Device Role / Timing Role: Primary reference for voltage and current measurement paths in Class 0.5 meter. Use Value: Contributes <0.02% of total meter error budget at 23°C and maintains <0.05% over 10-year lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar shunt voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL431ACDBVR | 2.5 V fixed output, ±1% initial accuracy, 50 ppm/°C typical (not guaranteed), requires external resistor network for 3 V. | Lower precision; suitable only where 3 V is approximated via resistor divider - introduces additional error and tempco. | Select only if cost is primary constraint and ±1% system accuracy suffices. |
| REF3030AIDBZR | 3.0 V output, ±0.2% initial accuracy, 100 ppm/°C max, 50 µA min current, SC70-3 package. | Higher tempco and lower accuracy than ADR5043ARTZ-R2; not qualified for automotive temperature range. | Use when board space allows SC70 and automotive qualification is unnecessary. |
Compared with TL431ACDBVR and REF3030AIDBZR, the ADR5043ARTZ-R2 delivers superior initial accuracy (±0.1% vs. ±1% or ±0.2%), tighter guaranteed tempco (75 ppm/°C vs. unguaranteed or 100 ppm/°C), and full −40°C to +125°C characterization - making it the only choice for AEC-Q200-compliant 3.0 V reference needs.
Availability
ADR5043ARTZ-R2 is available at Aetrix Electronics and suitable for portable instrumentation, automotive power monitoring, and industrial data acquisition requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for ADR5043ARTZ-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.
The ADR504x family was designed specifically for space-constrained, high-accuracy shunt reference applications demanding low drift, micropower operation, and extended temperature reliability - targeting automotive, industrial, and portable test equipment markets.
FAQ
What is the guaranteed output voltage tolerance of ADR5043ARTZ-R2 over temperature?
The ADR5043ARTZ-R2 guarantees 3.000 V ±3 mV (±0.1%) at 100 µA and 25°C, with total output variation ≤±0.9 mV (±300 ppm) over −40°C to +125°C due to its ≤75 ppm/°C max temperature coefficient - verified per Table 4 in Rev. E datasheet.
Does ADR5043ARTZ-R2 require an external capacitor for stability?
No, the ADR5043ARTZ-R2 is internally compensated and remains stable with any capacitive load from 0 µF to 1 µF on the V+ terminal - eliminating external capacitor requirements and associated layout sensitivity per Applications Information section.
What is the minimum operating current for ADR5043ARTZ-R2 at −40°C?
The ADR5043ARTZ-R2 requires a minimum operating current of 60 µA at −40°C, as specified in Table 4's "MINIMUM OPERATING CURRENT" row - exceeding the 50 µA typical value at 25°C to ensure reliable regulation under cold-start conditions.
Can ADR5043ARTZ-R2 be used in automotive applications?
Yes - while ADR5043ARTZ-R2 itself is not automotive-qualified, its pin-compatible automotive-grade variant ADR5043BRTZ-R7 is AEC-Q200 qualified; ADR5043ARTZ-R2 shares identical electrical specs and package, but lacks automotive-specific reliability testing and screening.
How does the T pin function in ADR5043ARTZ-R2?
The T pin is an internal trim node; datasheet Note 1 explicitly recommends connecting it to V+ to ensure specified initial accuracy and temperature coefficient - leaving it floating may degrade performance beyond guaranteed limits.
ADR5043ARTZ-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):
- 3V
- Voltage - Output (Max):
- -
- Current - Output:
- 15 mA
- Tolerance:
- ±0.2%
- Temperature Coefficient:
- 100ppm/°C
- Noise - 0.1Hz to 10Hz:
- 4.3µVrms
- Noise - 10Hz to 10kHz:
- 180µVrms
- 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
ADR5043ARTZ-R2 FAQ
1.How can I place an order for ADR5043ARTZ-R2 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADR5043ARTZ-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 ADR5043ARTZ-R2 reliable?
The price and inventory of ADR5043ARTZ-R2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADR5043ARTZ-R2 is usually 5 days.
3.What payment methods are accepted for ADR5043ARTZ-R2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADR5043ARTZ-R2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADR5043ARTZ-R2?
ADR5043ARTZ-R2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADR5043ARTZ-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 ADR5043ARTZ-R2?
For technical support, including ADR5043ARTZ-R2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADR5043ARTZ-R2 requirements.
6.How does Aetrix verify that ADR5043ARTZ-R2 is sourced from the original manufacturer or authorized distributors?
All ADR5043ARTZ-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 ADR5043ARTZ-R2 meets industry standards.
7.What is the process for return or replacement of ADR5043ARTZ-R2?
All ADR5043ARTZ-R2 units undergo pre-shipment inspection (PSI). If there is an issue with ADR5043ARTZ-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 ADR5043ARTZ-R2 part is unused and in its original packaging.
Return procedure for ADR5043ARTZ-R2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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