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Analog Devices Inc. ADR5041BRTZ-REEL7
- Part No.:
- ADR5041BRTZ-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ADR5041BRTZ-REEL7.pdf
- Description:
- IC VREF SHUNT 0.1% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,994
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Product details
Overview
ADR5041BRTZ-REEL7 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 chains. It delivers ±0.1% initial accuracy, 75 ppm/°C max temperature coefficient, and operates from 50 µA to 15 mA over −40°C to +125°C - enabling use in battery-powered instrumentation and automotive power supply monitoring.
For engineers reviewing the ADR5041BRTZ-REEL7 datasheet, ADR5041BRTZ-REEL7 pinout, ADR5041BRTZ-REEL7 application, or ADR5041BRTZ-REEL7 equivalent, this page provides verified electrical specifications, validated pin functions, confirmed automotive-grade thermal performance, and real-world design context for precision voltage referencing in space-constrained systems.
Technical Context
The ADR5041BRTZ-REEL7 implements a bandgap-based shunt architecture with zero external compensation required, stable across capacitive loads up to 1 µF. Its output voltage is defined by internal curvature-corrected VBE and PTAT current summation, yielding low hysteresis (40 ppm) and fast turn-on settling (35 µs).
It operates as a two-terminal device requiring only an external bias resistor, supporting both positive and negative precision reference configurations. The RT-3 package enables surface-mount integration into compact PCB layouts while maintaining full specification compliance across the extended industrial–automotive temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.500 V ±2.5 mV at 100 µA - ensures 16-bit DAC/ADC reference stability without trimming. |
| Initial Accuracy | ±0.1% - eliminates system-level calibration for portable medical sensors and data loggers. |
| Temp. Coefficient | ≤75 ppm/°C (−40°C to +125°C) - maintains <±0.3 mV drift over full automotive operating range. |
| Operating Current | 50 µA to 15 mA - supports ultra-low-power sleep modes and high-speed transient response. |
| Voltage Noise | 3.2 µV rms (0.1–10 Hz), 150 µV rms (10 Hz–10 kHz) - suitable for 24-bit sigma-delta ADC front-ends. |
| Dynamic Impedance | 0.2 Ω - minimizes load-induced error in multiplexed sensor measurement circuits. |
| Turn-On Settling | 35 µs (CLOAD = 0 µF) - enables rapid power cycling in energy-harvesting systems. |
Pinout & Package
ADR5041BRTZ-REEL7 uses the 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 must be connected to V+ per datasheet recommendation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (V+) | Anode / Input Terminal | Connects to bias resistor; carries total current (IIN + IL) into device. |
| 2 (V−) | Cathode / Output Terminal | Provides regulated 2.5 V reference node; sinks current to ground or load. |
| 3 (T) | Thermal Pad / V+ Tie | Internally connected to V+; externally tied to V+ to reduce thermal resistance and improve stability. |
Key Features
| Feature | Design Value |
|---|---|
| No external capacitor needed | Stable with any capacitive load (0–1 µF), simplifying layout and reducing BOM count in portable designs. |
| Precision grade B | ±0.1% initial accuracy and ≤75 ppm/°C TC enable single-point calibration in factory test flows. |
| Extended temperature operation | Full spec compliance from −40°C to +125°C supports under-hood automotive and industrial control applications. |
| Low quiescent current | 50 µA minimum operating current extends battery life in wireless sensor nodes and handheld meters. |
| Pin compatibility | Direct replacement for LM4040/LM4050 in existing SOT-23 layouts, easing legacy design upgrades. |
Applications
| Portable Instrumentation | Automotive Power Monitoring |
|---|---|
|
Use Scenario: Handheld multimeter with 200 kSPS sampling and auto-ranging. IC Role / Device Role / Timing Role: Shunt reference for 24-bit delta-sigma ADC and precision DAC calibration. Use Value: ±0.1% initial accuracy and 75 ppm/°C TC ensure <±0.5 LSB error over temperature without recalibration. |
Use Scenario: Battery management system (BMS) cell voltage sensing in EV traction packs. IC Role / Device Role / Timing Role: Stable 2.5 V reference for isolated ADC inputs measuring 0–5 V cell voltages. Use Value: −40°C to +125°C operation and 40 ppm hysteresis maintain measurement integrity during thermal cycling. |
| Industrial Data Acquisition | Energy Metering |
|
Use Scenario: DIN-rail mounted PLC analog input module with 16-channel simultaneous sampling. IC Role / Device Role / Timing Role: Per-channel reference for rail-to-rail op amp buffers driving SAR ADCs. Use Value: 0.2 Ω dynamic impedance prevents channel crosstalk during multiplexed acquisition sequences. |
Use Scenario: Class 0.2 smart electricity meter with metrology-grade voltage scaling. IC Role / Device Role / Timing Role: Primary reference for polyphase energy measurement ICs (e.g., ADE7953). Use Value: 3.2 µV rms low-frequency noise meets IEC 62053-22 noise floor requirements for active energy accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar shunt voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM4040C25IDCKR | ±0.5% initial accuracy, 100 ppm/°C TC, 60 µA min current, no T-pin. | Lower precision; suitable for non-critical biasing but not metrology-grade measurement. | Select when cost sensitivity outweighs accuracy needs and thermal pad connection is unnecessary. |
| ADR5041ARTZ-REEL7 | Same package and pinout; ±0.2% initial accuracy, 100 ppm/°C TC. | Relaxed tolerance allows use in general-purpose power supervision where 2.5 V stability is secondary. | Choose for cost-optimized industrial controls where ±0.2% meets system error budget. |
Compared with LM4040C25IDCKR and ADR5041ARTZ-REEL7, the ADR5041BRTZ-REEL7 provides tighter initial accuracy and lower temperature drift - critical for applications demanding <±1 mV absolute reference error across temperature, such as calibrated test equipment and automotive ADAS sensor interfaces.
Availability
ADR5041BRTZ-REEL7 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 and traceable sourcing.
Supply support for ADR5041BRTZ-REEL7 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 developed to deliver micropower, high-accuracy shunt references in ultrasmall packages for space- and power-constrained precision measurement systems - especially in portable, automotive, and industrial environments.
FAQ
What is the maximum operating current for ADR5041BRTZ-REEL7?
The ADR5041BRTZ-REEL7 supports a maximum operating current of 15 mA, as specified in the Electrical Characteristics table for all grades. This limit ensures stable regulation and thermal safety within the RT-3 package's 270°C/W junction-to-ambient thermal resistance. Exceeding 15 mA risks exceeding the absolute maximum reverse current rating of 25 mA and may degrade long-term accuracy.
Does ADR5041BRTZ-REEL7 require an external capacitor for stability?
No, the ADR5041BRTZ-REEL7 does not require an external capacitor for stability. Its internal design ensures unconditional stability with any capacitive load from 0 µF to at least 1 µF, as confirmed in the Applications Information section and Figure 14/17 output impedance plots. Adding a bypass capacitor is optional and only beneficial for supply filtering, not regulation stability.
What is the function of Pin 3 (T) on ADR5041BRTZ-REEL7?
Pin 3 (T) on ADR5041BRTZ-REEL7 is internally connected to the V+ terminal and serves as a thermal pad. The datasheet explicitly recommends connecting Pin 3 to V+ to reduce thermal resistance and improve long-term stability and temperature coefficient performance. Leaving it floating or grounding it degrades thermal performance and may increase output drift.
Is ADR5041BRTZ-REEL7 qualified for automotive applications?
No, ADR5041BRTZ-REEL7 is not automotive-qualified. Only variants with a "W" suffix (e.g., ADR5041WBRTZ-R7) are qualified for automotive use per AEC-Q100. The ADR5041BRTZ-REEL7 is rated for −40°C to +125°C operation and supports automotive-adjacent applications like body electronics, but lacks the controlled manufacturing flow and reliability reporting required for safety-critical powertrain or ADAS systems.
How does ADR5041BRTZ-REEL7 compare to LM4040 in pin compatibility?
The ADR5041BRTZ-REEL7 is pin compatible with LM4040/LM4050 in the SOT-23-3 package - sharing identical pin 1 (anode), pin 2 (cathode), and pin 3 (NC on LM4040, V+-tied thermal pad on ADR5041BRTZ-REEL7). While LM4040 pin 3 is no-connect, ADR5041BRTZ-REEL7 requires pin 3 connection to V+ for optimal performance; leaving it unconnected still permits basic operation but with reduced thermal stability.
ADR5041BRTZ-REEL7 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:
- Active
- Reference Type:
- Shunt
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 2.5V
- Voltage - Output (Max):
- -
- Current - Output:
- 15 mA
- Tolerance:
- ±0.1%
- Temperature Coefficient:
- 75ppm/°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
ADR5041BRTZ-REEL7 FAQ
1.How can I place an order for ADR5041BRTZ-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADR5041BRTZ-REEL7 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 ADR5041BRTZ-REEL7 reliable?
The price and inventory of ADR5041BRTZ-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADR5041BRTZ-REEL7 is usually 5 days.
3.What payment methods are accepted for ADR5041BRTZ-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADR5041BRTZ-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADR5041BRTZ-REEL7?
ADR5041BRTZ-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADR5041BRTZ-REEL7 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 ADR5041BRTZ-REEL7?
For technical support, including ADR5041BRTZ-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADR5041BRTZ-REEL7 requirements.
6.How does Aetrix verify that ADR5041BRTZ-REEL7 is sourced from the original manufacturer or authorized distributors?
All ADR5041BRTZ-REEL7 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 ADR5041BRTZ-REEL7 meets industry standards.
7.What is the process for return or replacement of ADR5041BRTZ-REEL7?
All ADR5041BRTZ-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADR5041BRTZ-REEL7, 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 ADR5041BRTZ-REEL7 part is unused and in its original packaging.
Return procedure for ADR5041BRTZ-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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