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Analog Devices Inc./Maxim Integrated MAX6041AEUR
- Part No.:
- MAX6041AEUR
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- -
- Datasheet:
-
MAX6041AEUR.pdf
- Description:
- THREE TERMINAL VOLTAGE REFERENCE
- Quantity:
- Payment:
- Shipping:
Inventory:844
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Product details
Overview
The MAX6041AEUR from Maxim Integrated is a precision, low-dropout, micropower series-mode voltage reference in SOT23-3 package, delivering 4.096V output with ±0.2% initial accuracy, <15ppm/°C temperature coefficient, and 100mV dropout at 500µA load-optimized for high-accuracy ADC/DAC biasing and battery-powered instrumentation.
For engineers reviewing the MAX6041AEUR datasheet, MAX6041AEUR pinout, MAX6041AEUR application, or MAX6041AEUR equivalent, key selection criteria include guaranteed 4.096V output stability over –40°C to +85°C, ultra-low 35µA max quiescent current, supply-independent operation (0.8µA/V VIN variation), and internal compensation enabling stable operation with 0–2.2nF capacitive loads.
Technical Context
This series-mode bandgap reference uses proprietary curvature-correction circuitry and laser-trimmed thin-film resistors to achieve <15ppm/°C TC and 0.2% initial accuracy across –40°C to +85°C. It operates as a three-terminal active regulator-IN, OUT, GND-with no external resistor or compensation capacitor required.
It sources/sinks ±500µA while maintaining 0.12µV/µA load regulation and 8µV/V line regulation. Dropout is specified at 100mV (max) under 500µA load, with input voltage range of (VOUT + 0.2V) to 12.6V-enabling use in low-voltage systems down to ~4.3V supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096V ±0.2% (guaranteed initial accuracy; enables precise 12-bit ADC full-scale reference) |
| Temp Coefficient | <15ppm/°C (max; ensures <±0.5mV drift over –40°C to +85°C ambient) |
| Quiescent Current | 35µA max (ultra-low power; extends battery life in portable data loggers) |
| Dropout Voltage | 100mV max at 500µA load (supports operation from 4.2V supply in 4.3V nominal systems) |
| Load Regulation | 0.12µV/µA (excellent stability under dynamic load changes in sensor front-ends) |
| Capacitive Load | Stable with 0–2.2nF (eliminates need for external compensation capacitor; saves PCB area) |
| Supply Variation | 0.8µA/V (supply current virtually independent of VIN; simplifies power budgeting) |
Pinout & Package
SOT23-3 surface-mount package with gull-wing leads, JEDEC MO-178AA compliant, 1.3mm × 2.9mm footprint, 1.0mm height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Supply Input | Positive input terminal; accepts (VOUT + 0.2V) to 12.6V; supplies internal bandgap core and output stage |
| 2 (OUT) | Reference Output | Stable 4.096V output; sources/sinks ±500µA; connects directly to ADC REF+ or DAC VREF pins |
| 3 (GND) | Ground Reference | Analog ground return; must be low-impedance path to system AGND to maintain accuracy |
Key Features
| Feature | Design Value |
|---|---|
| Initial Accuracy | ±0.2% (reduces calibration overhead in factory-trimmed measurement systems) |
| Temperature Coefficient | <15ppm/°C (meets industrial-grade drift requirements without external compensation) |
| No External Resistor | Series-mode architecture eliminates shunt resistor waste and VIN-dependent bias current |
| No Compensation Cap Required | Internally compensated for 0–2.2nF load capacitance-removes BOM item and layout uncertainty |
| Low Dropout | 100mV @ 500µA enables use with Li-ion cells (3.0–4.2V) when paired with LDO pre-regulation |
Applications
| Portable Data Acquisition | Industrial Sensor Transmitters |
|---|---|
|
Use Scenario: Handheld multimeter or environmental logger acquiring thermocouple/RTD signals via 12–16-bit SAR ADC. IC Role / Device Role / Timing Role: Precision 4.096V reference for ADC full-scale scaling and ratiometric sensor excitation. Use Value: Enables ±0.02% measurement accuracy over –20°C to +60°C ambient without recalibration. |
Use Scenario: 4–20mA loop-powered pressure transmitter with HART interface operating in hazardous areas. IC Role / Device Role / Timing Role: Stable reference for DAC-controlled current output and analog signal conditioning. Use Value: Maintains <±0.1% span error over 15-year field life due to 50ppm/1000hr long-term stability. |
| Battery-Powered IoT Nodes | Medical Instrumentation |
|
Use Scenario: Low-power wireless node sampling ECG or pulse oximetry signals using ultra-low-power MCU with integrated ADC. IC Role / Device Role / Timing Role: Primary voltage reference for analog front-end and internal ADC calibration. Use Value: 35µA max supply current contributes <0.5% to total sleep-mode power, extending 2-year battery life. |
Use Scenario: Portable blood glucose meter requiring traceable 4.096V reference per ISO 15197:2013 accuracy requirements. IC Role / Device Role / Timing Role: Certified reference source for electrochemical sensor signal chain gain and offset correction. Use Value: 0.2% initial tolerance and 130ppm hysteresis meet Class A clinical accuracy thresholds. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR3440ARJZ-R7 | 4.096V output, ±0.1% initial accuracy, 10ppm/°C TC, 4.5µA typical IQ, SOT23-5 package | Lower quiescent current but requires 5-pin layout; higher cost; tighter initial spec but same temp range | Select for ultra-low-power designs where 4.5µA IQ justifies added complexity and cost |
| REF3040AIDBZR | 4.096V output, ±0.2% initial accuracy, 50ppm/°C TC, 40µA max IQ, SOT23-3 package | Same footprint and pinout; higher TC limits use in extended industrial environments | Use only in commercial-temp (0°C to +70°C) applications where 50ppm/°C drift is acceptable |
Compared with ADR3440ARJZ-R7 and REF3040AIDBZR, the MAX6041AEUR offers superior temperature stability (<15ppm/°C vs. 10ppm/°C or 50ppm/°C) in the same SOT23-3 footprint, making it optimal for industrial-grade accuracy without layout change or cost premium.
Availability
MAX6041AEUR is available at Aetrix Electronics and suitable for portable data acquisition, industrial sensor transmitters, and battery-powered IoT nodes requiring stable component supply with guaranteed long-term availability.
Supply support for MAX6041AEUR 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
Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and power-management ICs for demanding industrial, medical, and communications applications.
The MAX6041AEUR belongs to the MAX6012 family of micropower series-mode voltage references, engineered specifically for high-accuracy, low-power, space-constrained systems where external components and board area must be minimized.
FAQ
What is the output voltage tolerance and temperature coefficient of the MAX6041AEUR?
The MAX6041AEUR provides a nominal 4.096V output with ±0.2% initial accuracy (A-grade) and a maximum temperature coefficient of <15ppm/°C over –40°C to +85°C. These specifications are production-tested and guaranteed per the datasheet's electrical characteristics table, ensuring consistent performance in industrial-grade applications without post-manufacture trimming.
Does the MAX6041AEUR require an external output capacitor for stability?
No, the MAX6041AEUR is internally compensated and stable with capacitive loads from 0 to 2.2nF. Unlike many references, it does not require an external capacitor for phase margin-reducing BOM count and PCB area. An optional capacitor may improve transient response in high-dynamic-load applications, but it is never mandatory for stability.
What is the minimum input voltage required for proper operation of the MAX6041AEUR?
The MAX6041AEUR requires a minimum input voltage of (VOUT + 0.2V) = 4.296V to maintain regulation at full 500µA load. Its absolute maximum input is 12.6V. At light loads, it can operate down to ~4.196V, but the 100mV dropout specification is validated at 4.296V input with 500µA sink/source current.
Can the MAX6041AEUR both source and sink current, and what are the limits?
Yes, the MAX6041AEUR is fully bidirectional: it can source up to +500µA and sink up to –500µA while maintaining output accuracy within specification. This capability supports ratiometric sensor excitation, active filtering, and DAC reference buffering where current flows into or out of the reference node during signal processing cycles.
How does the supply current of the MAX6041AEUR vary with input voltage?
The MAX6041AEUR exhibits only 0.8µA/V variation in quiescent supply current across its input voltage range-making it effectively supply-independent. At 4.3V input, typical IIN is ~27µA; at 12.6V, it rises by <7µA. This behavior contrasts sharply with shunt references, whose current scales linearly with VIN and load, improving system-level power predictability.
MAX6041AEUR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- -
- Series:
- *
- Packaging:
- Bulk
- Product Status:
- Active
- Reference Type:
- -
- Output Type:
- -
- Voltage - Output (Min/Fixed):
- -
- Voltage - Output (Max):
- -
- Current - Output:
- -
- Tolerance:
- -
- Temperature Coefficient:
- -
- Noise - 0.1Hz to 10Hz:
- -
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- -
- Current - Supply:
- -
- Current - Cathode:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MAX6041AEUR FAQ
1.How can I place an order for MAX6041AEUR through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6041AEUR 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 MAX6041AEUR reliable?
The price and inventory of MAX6041AEUR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6041AEUR is usually 5 days.
3.What payment methods are accepted for MAX6041AEUR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6041AEUR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6041AEUR?
MAX6041AEUR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6041AEUR 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 MAX6041AEUR?
For technical support, including MAX6041AEUR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6041AEUR requirements.
6.How does Aetrix verify that MAX6041AEUR is sourced from the original manufacturer or authorized distributors?
All MAX6041AEUR 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 MAX6041AEUR meets industry standards.
7.What is the process for return or replacement of MAX6041AEUR?
All MAX6041AEUR units undergo pre-shipment inspection (PSI). If there is an issue with MAX6041AEUR, 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 MAX6041AEUR part is unused and in its original packaging.
Return procedure for MAX6041AEUR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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