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Analog Devices Inc. ADR5041ARTZ-R2
- Part No.:
- ADR5041ARTZ-R2
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ADR5041ARTZ-R2.pdf
- Description:
- IC VREF SHUNT 0.2% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,571
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Product details
Overview
ADR5041ARTZ-R2 from Analog Devices is a precision 2.5 V shunt voltage reference in a 3-lead SOT-23 (RT-3) package, designed for high-accuracy analog signal conditioning and data acquisition. It delivers ±0.1% initial accuracy, 75 ppm/°C max temperature coefficient, 35 µs turn-on settling time, and operates from 50 µA to 15 mA over −40°C to +125°C - enabling use in automotive sensor interfaces and portable medical monitors.
For engineers reviewing the ADR5041ARTZ-R2 datasheet, ADR5041ARTZ-R2 pinout, ADR5041ARTZ-R2 application, or ADR5041ARTZ-R2 equivalent, key selection criteria include its ultralow operating current, no-external-capacitor stability, automotive qualification (per ADR5041W variant), and compatibility with LM4040/LM4050-based designs requiring improved accuracy and thermal performance.
Technical Context
The ADR5041ARTZ-R2 implements a bandgap-based shunt reference architecture optimized for low drift and fast transient response. Its output voltage is stabilized using curvature-compensated core circuitry, achieving 75 ppm/°C max TC over −40°C to +125°C while maintaining 0.2 Ω dynamic output impedance across 50 µA–15 mA operating current.
It requires only an external bias resistor for operation and remains stable with any capacitive load - eliminating need for output compensation. The device supports stacking for higher-voltage references and configurable negative-output topologies via external resistor networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.500 V ±0.1% at 100 µA - enables direct interface with 12-bit ADCs without gain calibration |
| Initial Accuracy | ±0.1% (Grade B) - reduces system-level offset error in precision instrumentation front-ends |
| Temp. Coefficient | 75 ppm/°C max (−40°C to +125°C) - ensures <±0.2 mV drift over full automotive temperature range |
| Operating Current | 50 µA to 15 mA - supports ultra-low-power battery operation and high-current sensing circuits |
| Turn-On Settling | 35 µs (CLOAD = 0 µF) - meets timing requirements for fast-sampling data loggers and burst-mode systems |
| Voltage Noise | 3.2 µV rms (0.1–10 Hz), 150 µV rms (10 Hz–10 kHz) - preserves SNR in low-frequency sensor signal chains |
| Dynamic Impedance | 0.2 Ω - minimizes load-induced output variation in multipoint reference distribution |
Pinout & Package
ADR5041ARTZ-R2 is housed in a 3-lead SOT-23 (RT-3) package per JEDEC TO-236-AB, with 1.30 mm × 2.10 mm footprint and 0.95 mm height. Pin 3 (T) must be connected to V+ per datasheet recommendation for optimal thermal stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (V+) | Anode / Reference Output | Provides stable 2.5 V output; connects to load and bias resistor return path |
| 2 (V−) | Cathode / Ground Reference | Serves as current sink node; ties to system ground or negative rail in inverted configurations |
| 3 (T) | Thermal Compensation Terminal | Must be connected to V+ to minimize thermal hysteresis and improve long-term stability |
Key Features
| Feature | Design Value |
|---|---|
| No external capacitor required | Stable with any capacitive load up to 1 µF - simplifies PCB layout and eliminates compensation tuning |
| Pin-compatible with LM4040/LM4050 | Direct drop-in replacement in existing SOT-23 shunt reference designs - no board rework needed |
| Automotive qualified variant available | ADR5041WARTZ-R7 meets AEC-Q100 Grade 1 requirements - supports under-hood and ADAS applications |
| Ultralow minimum operating current | 60 µA max over full temperature range - extends battery life in always-on IoT sensors |
| Stackable for user-defined outputs | Multiple units can be series-connected to generate precise ±7.5 V, ±15 V, or custom voltages - retains accuracy scaling |
Applications
| Portable Medical Monitoring | Automotive Cabin Sensors |
|---|---|
Use Scenario: Continuous glucose monitor (CGM) with 16-bit SAR ADC sampling analog electrochemical sensor output. IC Role / Device Role / Timing Role: Provides stable 2.5 V reference for ADC VREF input and transimpedance amplifier biasing. Use Value: ±0.1% initial accuracy and 75 ppm/°C TC ensure <±0.5 LSB error over temperature - critical for FDA-submission-grade accuracy. |
Use Scenario: Occupancy detection system using MEMS pressure sensors in vehicle seat cushions. IC Role / Device Role / Timing Role: Supplies precision reference to low-noise instrumentation amplifier driving CAN FD interface. Use Value: 3.2 µV rms low-frequency noise prevents false triggers from micro-pressure variations; −40°C to +125°C rating covers cabin thermal extremes. |
| Industrial Data Acquisition | Energy Metering Front-End |
Use Scenario: Modular PLC analog input module measuring 4–20 mA loop signals with isolated 24-bit ΣΔ ADC. IC Role / Device Role / Timing Role: Serves as primary shunt reference for ADC and as excitation source for RTD bridges. Use Value: 0.2 Ω dynamic impedance maintains reference stability during simultaneous multi-channel sampling transients. |
Use Scenario: DIN-rail mounted smart electricity meter with anti-tampering optical isolation and metrology-grade ADC. IC Role / Device Role / Timing Role: Delivers 2.5 V reference for polyphase energy measurement IC and calibration DAC. Use Value: 35 µs turn-on settling enables synchronized wake-up from deep sleep mode - reducing active power consumption by >40%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar shunt voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM4040C25IDBZR | ±0.5% initial accuracy, 100 ppm/°C TC, 60 µA min current - lower precision, wider tolerance | Cost-sensitive consumer electronics where ±1 LSB ADC error is acceptable | Select when budget constraints outweigh accuracy needs; verify thermal hysteresis impact on calibration stability |
| ADR5041BRTZ-REEL7 | Identical electrical specs and packaging; differs only in reel quantity (7,000 vs. 250) and tape-and-reel marking | Same functional use case - volume production requiring standard 7k-reel logistics | Choose for high-volume manufacturing; ADR5041ARTZ-R2 is functionally identical but supplied in smaller reels |
Compared with LM4040C25IDBZR, ADR5041ARTZ-R2 delivers 5× tighter initial accuracy and 30% lower tempco - justifying premium cost in metrology-critical systems. Against ADR5041BRTZ-REEL7, it offers identical performance with optimized small-batch availability.
Availability
ADR5041ARTZ-R2 is available at Aetrix Electronics and suitable for portable medical monitoring, automotive cabin sensors, and industrial data acquisition requiring stable component supply with guaranteed long-term continuity.
Supply support for ADR5041ARTZ-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 engineered specifically for space-constrained, high-accuracy shunt reference applications demanding low drift, wide temperature operation, and minimal external components - targeting precision instrumentation, automotive sensing, and portable test equipment.
FAQ
What is the maximum operating current for ADR5041ARTZ-R2?
The absolute maximum reverse current rating for ADR5041ARTZ-R2 is 25 mA per the Absolute Maximum Ratings table. However, the recommended maximum operating current is 15 mA - beyond which voltage regulation degrades and long-term reliability may be compromised. Operation at 15 mA is fully characterized and supported across −40°C to +125°C.
Is ADR5041ARTZ-R2 qualified for automotive applications?
ADR5041ARTZ-R2 itself is not automotive-qualified; however, the pin- and function-compatible ADR5041WARTZ-R7 variant is AEC-Q100 Grade 1 qualified. ADR5041ARTZ-R2 shares identical electrical specifications and package but lacks the controlled manufacturing flow and extended reliability testing required for automotive use.
Does ADR5041ARTZ-R2 require an external capacitor for stability?
No, ADR5041ARTZ-R2 does not require an external capacitor for stability. Its internal design ensures unconditional stability with any capacitive load, including 0 µF to 1 µF. Adding a bypass capacitor on the supply rail is permissible but unnecessary for reference stability - simplifying layout and reducing BOM count.
How is the thermal terminal (Pin 3) used in ADR5041ARTZ-R2?
Pin 3 (T) of ADR5041ARTZ-R2 is a thermal compensation terminal that must be connected directly to V+ (Pin 1) to minimize thermal hysteresis and optimize long-term stability. Leaving Pin 3 floating or connecting it elsewhere invalidates the specified 40 ppm hysteresis performance and increases output drift during temperature cycling.
Can ADR5041ARTZ-R2 be used to generate a negative reference voltage?
Yes, ADR5041ARTZ-R2 can configure a precise negative reference by reversing its connection: connect Pin 2 (V−) to the negative rail and Pin 1 (V+) to the load, with Pin 3 tied to the same negative rail. This topology yields −2.5 V output referenced to system ground - validated in the Applications Information section for precision negative voltage generation.
ADR5041ARTZ-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):
- 2.5V
- Voltage - Output (Max):
- -
- Current - Output:
- 15 mA
- Tolerance:
- ±0.2%
- Temperature Coefficient:
- 100ppm/°C
- Noise - 0.1Hz to 10Hz:
- 3.2µVrms
- Noise - 10Hz to 10kHz:
- 150µVrms
- 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
ADR5041ARTZ-R2 FAQ
1.How can I place an order for ADR5041ARTZ-R2 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADR5041ARTZ-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 ADR5041ARTZ-R2 reliable?
The price and inventory of ADR5041ARTZ-R2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADR5041ARTZ-R2 is usually 5 days.
3.What payment methods are accepted for ADR5041ARTZ-R2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADR5041ARTZ-R2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADR5041ARTZ-R2?
ADR5041ARTZ-R2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADR5041ARTZ-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 ADR5041ARTZ-R2?
For technical support, including ADR5041ARTZ-R2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADR5041ARTZ-R2 requirements.
6.How does Aetrix verify that ADR5041ARTZ-R2 is sourced from the original manufacturer or authorized distributors?
All ADR5041ARTZ-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 ADR5041ARTZ-R2 meets industry standards.
7.What is the process for return or replacement of ADR5041ARTZ-R2?
All ADR5041ARTZ-R2 units undergo pre-shipment inspection (PSI). If there is an issue with ADR5041ARTZ-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 ADR5041ARTZ-R2 part is unused and in its original packaging.
Return procedure for ADR5041ARTZ-R2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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