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Analog Devices Inc. ADR5043AKSZ-REEL
- Part No.:
- ADR5043AKSZ-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- SC-70, SOT-323
- Datasheet:
-
ADR5043AKSZ-REEL.pdf
- Description:
- IC VREF SHUNT 0.2% SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:1,202
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Product details
Overview
ADR5043AKSZ-REEL from Analog Devices is a precision 3.0 V shunt voltage reference in SC70-3 package, delivering ±0.2% initial accuracy, 100 ppm/°C max temperature coefficient, and stable operation from 50 µA to 15 mA supply current - used for high-accuracy ADC/DAC biasing, portable power monitoring, and automotive sensor signal conditioning.
For engineers reviewing the ADR5043AKSZ-REEL datasheet, ADR5043AKSZ-REEL pinout, ADR5043AKSZ-REEL application, or ADR5043AKSZ-REEL equivalent, key selection criteria include output voltage tolerance over −40°C to +125°C, dynamic impedance under load transients, noise performance in 0.1 Hz–10 kHz band, and compatibility with capacitor-free operation in space-constrained designs.
Technical Context
The ADR5043AKSZ-REEL implements a bandgap-based shunt architecture with curvature-corrected core, enabling low thermal drift without external compensation. It operates as a two-terminal device requiring only an external bias resistor to regulate current through the reference and load.
Its output voltage remains stable across capacitive loads up to 1 µF and exhibits 0.2 Ω dynamic output impedance, supporting fast settling (42 µs) and low hysteresis (40 ppm). The device is characterized across −40°C to +125°C and qualified for extended-temperature industrial and automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.000 V nominal at 100 µA; min/max of 2.994 V / 3.006 V ensures ≤±0.2% error in precision data acquisition scaling. |
| Initial Accuracy | ±0.2% (±6 mV) at 25°C; defines absolute voltage error before system calibration. |
| Temp. Coefficient | ≤100 ppm/°C over −40°C to +125°C; contributes ≤±0.33 mV drift across full range for 3 V output. |
| Operating Current | 50 µA to 15 mA; enables ultra-low-power battery operation and robust drive capability for mixed-signal ICs. |
| Voltage Noise | 4.3 µV rms (0.1–10 Hz), 180 µV rms (10 Hz–10 kHz); critical for low-noise instrumentation front-ends. |
| Turn-On Settling | 42 µs to 0.1% with no load capacitance; supports fast wake-up in duty-cycled sensor systems. |
| Dynamic Impedance | 0.2 Ω; minimizes output voltage shift during load current steps in real-time control loops. |
Pinout & Package
ADR5043AKSZ-REEL uses a 3-lead SC70 (KS-3) package: ultracompact footprint (2.00 mm × 1.25 mm × 0.9 mm), thin profile (0.9 mm max height), and JEDEC-compliant SC70 outline per EIAJ standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Anode (cathode-connected internally) | Connected to system supply rail; reverse-biased terminal where reference voltage appears relative to V−. |
| V− | Cathode (reference output node) | Provides stable 3.0 V output; must be tied to ground or low-impedance return path for proper regulation. |
| T | Thermal pad / optional tie to V+ | Not electrically active; recommended connection to V+ improves thermal stability and reduces thermal hysteresis. |
Key Features
| Feature | Design Value |
|---|---|
| No external capacitor required | Stable with any capacitive load up to 1 µF - eliminates BOM cost and layout area for decoupling caps in wearables and modules. |
| Ultralow quiescent current | 50 µA minimum operating current enables >10-year battery life in coin-cell-powered IoT sensors. |
| Extended temperature range | −40°C to +125°C operation supports under-hood automotive ECUs and industrial motor drives without derating. |
| Pin-compatible with LM4040/LM4050 | Direct drop-in replacement for legacy references - preserves existing PCB layouts and qualification data. |
| Low voltage noise | 4.3 µV rms (0.1–10 Hz) enables sub-16-bit effective resolution in high-gain sensor amplifiers. |
Applications
| Portable Power Monitoring | Automotive Cabin Sensors |
|---|---|
Use Scenario: Real-time battery voltage measurement in Bluetooth LE medical patches and smart watches. IC Role / Device Role / Timing Role: Provides stable 3.0 V reference for SAR ADC input scaling and LDO feedback divider. Use Value: Enables ±0.5% state-of-charge accuracy over temperature and battery discharge curve without recalibration. |
Use Scenario: Humidity and CO₂ sensing in HVAC control units mounted near vehicle dashboards. IC Role / Device Role / Timing Role: Supplies excitation voltage and ADC reference for analog sensor signal chains. Use Value: Maintains <±0.1% sensor gain stability across −40°C cold cranking to +85°C cabin heat soak. |
| Industrial Data Acquisition | Energy Metering Front-End |
Use Scenario: 24-bit sigma-delta ADC reference in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Shunt reference for precision voltage-to-digital conversion of 4–20 mA loop signals. Use Value: Delivers 16.5 ENOB at 10 SPS with <1 µV p-p low-frequency noise, meeting IEC 61000-4-30 Class A requirements. |
Use Scenario: Reference for metrology-grade polyphase energy meter ICs (e.g., ADE7953) in smart grid endpoints. IC Role / Device Role / Timing Role: Primary voltage reference for RMS voltage, current, and power calculations. Use Value: Supports 0.1% active energy accuracy over 20-year product lifetime with <40 ppm hysteresis and minimal aging drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar shunt voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM4040C30IDCKR | ±0.5% initial accuracy, 100 ppm/°C TC, 60 µA min current; larger 350 mV dropout vs. zero-dropout shunt topology. | Lower accuracy limits use in 16-bit+ systems; suitable for cost-sensitive industrial controls where ±0.5% is acceptable. | Select when BOM cost priority outweighs precision; verify bias resistor sizing for 60 µA minimum. |
| ADR5043BKSZ-REEL | Same package and pinout; ±0.1% initial accuracy, 75 ppm/°C TC - tighter specs achieved via enhanced trimming. | Enables higher-resolution measurements in medical diagnostics and test equipment where 0.1% accuracy is mandated. | Choose for upgraded performance without layout change; note 10% higher unit cost and potential lead time variance. |
Compared with LM4040C30IDCKR and ADR5043BKSZ-REEL, the ADR5043AKSZ-REEL delivers optimal balance of industrial-grade accuracy (±0.2%), ultra-small SC70 footprint, and guaranteed automotive temperature support - making it ideal for next-generation compact, high-reliability embedded systems where board space and long-term stability are critical.
Availability
ADR5043AKSZ-REEL is available at Aetrix Electronics and suitable for portable medical devices, automotive cabin electronics, and industrial data loggers requiring stable component supply with full traceability and lifecycle continuity.
Supply support for ADR5043AKSZ-REEL 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, serving precision instrumentation, industrial automation, and automotive markets since 1965.
The ADR504x family was designed specifically for space-constrained, high-accuracy voltage reference needs in battery-powered and extended-temperature applications - emphasizing micropower operation, low drift, and capacitor-free stability.
FAQ
What is the maximum operating current for ADR5043AKSZ-REEL?
The ADR5043AKSZ-REEL supports a maximum operating current of 15 mA, enabling robust drive capability for multiple downstream loads while maintaining regulation. This allows direct interfacing with op-amp bias networks and ADC reference inputs without external buffering. Exceeding 15 mA risks exceeding absolute maximum ratings and may cause thermal instability or permanent damage to the ADR5043AKSZ-REEL.
Does ADR5043AKSZ-REEL require an external capacitor for stability?
No, the ADR5043AKSZ-REEL is designed to operate stably without any external capacitor across its terminals - a key differentiator from older shunt references. It remains stable with capacitive loads up to 1 µF, simplifying layout and reducing BOM count. This feature is confirmed in the Applications Information section of the Rev. E datasheet and validated across all operating conditions for the ADR5043AKSZ-REEL.
What is the temperature range specification for ADR5043AKSZ-REEL?
The ADR5043AKSZ-REEL is fully specified over −40°C to +125°C, with all electrical characteristics guaranteed across this extended industrial and automotive temperature range. Its 100 ppm/°C max temperature coefficient and 40 ppm hysteresis ensure predictable performance in under-hood automotive modules and outdoor industrial controllers where ambient extremes are common.
How does ADR5043AKSZ-REEL compare to LM4040 in pin compatibility?
The ADR5043AKSZ-REEL is explicitly pin compatible with LM4040 and LM4050 series shunt references in SC70-3 and SOT-23-3 packages. Pin 1 (V+), Pin 2 (V−), and Pin 3 (T) map identically, allowing direct PCB-level replacement without layout modification. However, the ADR5043AKSZ-REEL offers superior initial accuracy (±0.2% vs. ±0.5% for LM4040C) and lower temperature coefficient.
What is the typical voltage noise of ADR5043AKSZ-REEL in the 0.1 Hz to 10 Hz band?
The ADR5043AKSZ-REEL delivers 4.3 µV rms voltage noise in the 0.1 Hz to 10 Hz band, measured at 100 µA operating current. This low flicker noise supports high-resolution DC measurements in precision instrumentation and sensor signal conditioning. The value is specified in Table 4 of the Rev. E datasheet and applies directly to the ADR5043AKSZ-REEL grade.
ADR5043AKSZ-REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- SC-70, SOT-323
- Series:
- ADR504
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- SC-70-3
ADR5043AKSZ-REEL FAQ
1.How can I place an order for ADR5043AKSZ-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADR5043AKSZ-REEL 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 ADR5043AKSZ-REEL reliable?
The price and inventory of ADR5043AKSZ-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADR5043AKSZ-REEL is usually 5 days.
3.What payment methods are accepted for ADR5043AKSZ-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADR5043AKSZ-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADR5043AKSZ-REEL?
ADR5043AKSZ-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADR5043AKSZ-REEL 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 ADR5043AKSZ-REEL?
For technical support, including ADR5043AKSZ-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADR5043AKSZ-REEL requirements.
6.How does Aetrix verify that ADR5043AKSZ-REEL is sourced from the original manufacturer or authorized distributors?
All ADR5043AKSZ-REEL 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 ADR5043AKSZ-REEL meets industry standards.
7.What is the process for return or replacement of ADR5043AKSZ-REEL?
All ADR5043AKSZ-REEL units undergo pre-shipment inspection (PSI). If there is an issue with ADR5043AKSZ-REEL, 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 ADR5043AKSZ-REEL part is unused and in its original packaging.
Return procedure for ADR5043AKSZ-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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