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Analog Devices Inc./Maxim Integrated MAX6018AEUR16+T
- Part No.:
- MAX6018AEUR16+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MAX6018AEUR16+T.pdf
- Description:
- IC VREF SERIES 0.2% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,982
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Product details
Overview
MAX6018AEUR16+T from Maxim Integrated is a precision, low-dropout, micropower bandgap voltage reference in a 3-pin SOT23 package. It delivers a stable 1.600V output with ±0.2% initial accuracy, 50ppm/°C max temperature drift, and operates from (VOUT + 200mV) to 5.5V input - enabling use in two-cell alkaline battery-monitoring systems where supply headroom is minimal.
For engineers reviewing the MAX6018AEUR16+T datasheet, MAX6018AEUR16+T pinout, MAX6018AEUR16+T application, or MAX6018AEUR16+T equivalent, key selection criteria include ultra-low 5μA max supply current, 200mV dropout at 1mA load, supply-voltage-independent quiescent current (0.1μA/V variation), and guaranteed stability with 100pF–1μF capacitive loads.
Technical Context
The MAX6018AEUR16+T implements a bandgap-based reference core with internal trimming for high initial accuracy and low thermal drift. Its three-terminal architecture (IN, OUT, GND) eliminates external resistor requirements and enables direct sourcing/sinking of up to 1mA load current without performance degradation.
It features dynamic stability across wide capacitive-load ranges (0.1nF to 1000nF), 85dB ripple rejection at 120Hz, and 200μs turn-on settling time to 0.1% with 5nF output capacitance - making it suitable for precision ADC biasing and low-power sensor signal conditioning in battery-constrained environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.600V ±0.2% (max deviation = ±3.2mV at +25°C) |
| Initial Accuracy | ±0.2% over -40°C to +85°C - ensures consistent ADC reference without calibration |
| Temperature Drift | ≤50ppm/°C - contributes ≤±0.04% error over full temp range |
| Dropout Voltage | 200mV max at 1mA load - supports operation down to 1.8V input from two alkaline cells |
| Supply Current | ≤5μA max (3–6μA over temp); varies only 0.1μA/V with VIN - minimizes battery drain |
| Line Regulation | 250μV/V max - maintains output stability despite input voltage sag during battery discharge |
| Load Regulation | 700μV/mA max (source), 50μV/μA max (sink) - preserves accuracy under varying sensor/ADC loading |
Pinout & Package
MAX6018AEUR16+T is housed in a RoHS-compliant 3-pin SOT23-3 package (outline 21-0051, land pattern 90-0179), measuring 2.92mm × 1.3mm × 1.02mm, with gull-wing leads optimized for automated assembly and thermal performance in space-constrained PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Supply Voltage Input | Accepts 1.8V–5.5V input; requires 0.1μF bypass capacitor to GND for noise immunity and transient response |
| 2 (OUT) | Reference Voltage Output | Delivers regulated 1.600V; must be bypassed with ≥100pF to GND for stability; supports 1mA source/sink |
| 3 (GND) | Ground Reference | Low-impedance return path; connects directly to system ground plane to minimize noise coupling into reference node |
Key Features
| Feature | Design Value |
|---|---|
| Micropower Operation | 5μA max supply current enables >10-year battery life in always-on monitoring systems |
| Low Dropout | 200mV dropout at 1mA allows reliable operation even at end-of-life battery voltages (~1.8V) |
| Capacitive-Load Stability | Stable with 0.1nF–1000nF output capacitance - accommodates layout parasitics and filtering needs |
| Supply-Voltage-Independent Current | Quiescent current varies only 0.1μA/V - eliminates need for input regulation before reference |
| High Ripple Rejection | 85dB at 120Hz suppresses AC ripple from DC-DC converters or rectified supplies |
Applications
| Battery Voltage Monitoring | Precision ADC Reference |
|---|---|
Use Scenario: Real-time monitoring of two-cell alkaline battery voltage in portable medical devices. IC Role / Device Role / Timing Role: Provides stable 1.600V reference for 12-bit SAR ADC measuring cell voltage decay. Use Value: Enables accurate end-of-life detection with <±3.2mV absolute error, extending usable battery runtime by avoiding premature shutdown. |
Use Scenario: Reference for 16-bit sigma-delta ADC in industrial temperature sensor nodes. IC Role / Device Role / Timing Role: Supplies low-noise, low-drift reference to ADC's VREF+ input during high-resolution conversion cycles. Use Value: Limits reference-induced error to <0.04% over temperature, preserving effective resolution beyond 15 bits. |
| Handheld Data Logger | Low-Power Sensor Interface |
Use Scenario: Power management in battery-powered environmental data loggers sampling every 5 minutes. IC Role / Device Role / Timing Role: Powers analog front-end and ADC during brief active periods; remains active in sleep mode. Use Value: 5μA max current reduces average power consumption to <1μW, enabling multi-year operation on CR2032 coin cell. |
Use Scenario: Biasing thermistor bridge and amplifying output in wearable health monitors. IC Role / Device Role / Timing Role: Sets precise gain and offset in instrumentation amplifier stage via ratiometric configuration. Use Value: Ratiometric operation cancels drift effects; 50ppm/°C drift ensures <0.1°C measurement error over -20°C to +60°C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR3416ARJZ-R7 | 1.6V output, ±0.1% initial accuracy, 30ppm/°C drift, 4.5μA max supply current, SOT23-3 | Higher accuracy and lower drift, but requires minimum 2.0V input - unsuitable for <2.0V battery operation | Select when tighter accuracy is critical and input voltage ≥2.0V; not drop-in due to higher VIN min. |
| REF3016AIDBZR | 1.6V output, ±0.2% initial accuracy, 50ppm/°C drift, 50μA max supply current, SOT23-3 | Same accuracy/drift specs, but 10× higher supply current limits battery life in ultra-low-power systems | Choose only if legacy design uses REF30xx footprint and power budget allows 50μA; otherwise MAX6018AEUR16+T offers superior efficiency. |
Compared with ADR3416ARJZ-R7 and REF3016AIDBZR, the MAX6018AEUR16+T uniquely balances ±0.2% accuracy, 50ppm/°C drift, and 5μA max supply current while supporting 1.8V input - making it the only option among the three viable for two-cell alkaline systems operating near end-of-life voltage.
Availability
MAX6018AEUR16+T is available at Aetrix Electronics and suitable for battery voltage monitoring, precision ADC reference, handheld data logging, and low-power sensor interface applications requiring stable component supply, long-term parametric consistency, and RoHS-compliant packaging.
Supply support for MAX6018AEUR16+T 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 and mixed-signal ICs for demanding industrial, medical, and battery-powered applications, emphasizing low power, small size, and high reliability.
The MAX6018 family was developed specifically for ultra-low-power, high-accuracy voltage referencing in space- and energy-constrained systems - targeting battery-operated instrumentation, portable diagnostics, and long-life IoT edge sensors.
FAQ
What is the minimum input voltage required for stable operation of the MAX6018AEUR16+T?
The MAX6018AEUR16+T requires a minimum input voltage of (VOUT + 200mV) = 1.8V to maintain regulation. Below this, output voltage drops nonlinearly. At 1.8V input and 1mA load, dropout is guaranteed ≤200mV per datasheet testing, ensuring stable 1.600V output even at end-of-life battery voltage.
Does the MAX6018AEUR16+T require an external resistor for operation?
No, the MAX6018AEUR16+T is a three-terminal series voltage reference and does not require an external resistor. Unlike shunt-mode references, its supply current remains virtually independent of input voltage (0.1μA/V variation), eliminating resistor-related power loss and simplifying PCB layout.
Can the MAX6018AEUR16+T drive a 1000nF output capacitor without instability?
Yes, the MAX6018AEUR16+T is specified to remain stable with output capacitance from 0.1nF up to 1000nF. This wide range accommodates EMI filtering, transient suppression, and layout parasitics without requiring additional compensation components.
What is the maximum load current the MAX6018AEUR16+T can source or sink?
The MAX6018AEUR16+T can source up to +1mA and sink up to –1mA while maintaining output accuracy within specifications. Load regulation is characterized at ±1mA, with worst-case deviation of 700μV/mA (source) and 50μV/μA (sink), ensuring predictable performance under dynamic loading.
How does temperature affect the output voltage accuracy of the MAX6018AEUR16+T?
The MAX6018AEUR16+T has a maximum temperature coefficient of 50ppm/°C. Over its –40°C to +85°C operating range (125°C span), this contributes ≤±0.00625V (±0.39%) additional error beyond initial ±0.2% tolerance - resulting in total worst-case error of ±0.59% across temperature and initial calibration.
MAX6018AEUR16+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 1.6V
- Voltage - Output (Max):
- -
- Current - Output:
- 1 mA
- Tolerance:
- ±0.2%
- Temperature Coefficient:
- 50ppm/°C
- Noise - 0.1Hz to 10Hz:
- 40µVp-p
- Noise - 10Hz to 10kHz:
- 150µVrms
- Voltage - Input:
- 1.8V ~ 5.5V
- Current - Supply:
- 6µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
MAX6018AEUR16+T FAQ
1.How can I place an order for MAX6018AEUR16+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6018AEUR16+T 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 MAX6018AEUR16+T reliable?
The price and inventory of MAX6018AEUR16+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6018AEUR16+T is usually 5 days.
3.What payment methods are accepted for MAX6018AEUR16+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6018AEUR16+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6018AEUR16+T?
MAX6018AEUR16+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6018AEUR16+T 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 MAX6018AEUR16+T?
For technical support, including MAX6018AEUR16+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6018AEUR16+T requirements.
6.How does Aetrix verify that MAX6018AEUR16+T is sourced from the original manufacturer or authorized distributors?
All MAX6018AEUR16+T 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 MAX6018AEUR16+T meets industry standards.
7.What is the process for return or replacement of MAX6018AEUR16+T?
All MAX6018AEUR16+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6018AEUR16+T, 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 MAX6018AEUR16+T part is unused and in its original packaging.
Return procedure for MAX6018AEUR16+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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