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Analog Devices Inc./Maxim Integrated MAX6018BEUR16+T
- Part No.:
- MAX6018BEUR16+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MAX6018BEUR16+T.pdf
- Description:
- IC VREF SERIES 0.4% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:4,627
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Product details
Overview
MAX6018BEUR16+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 ±0.4% initial accuracy, 50ppm/°C max temperature drift, and operates from 1.8V to 5.5V input while consuming only 6μA max supply current. It is designed for battery-monitoring circuits in two-cell alkaline systems where ultra-low quiescent current and minimal dropout (200mV at 1mA) are critical.
For engineers reviewing the MAX6018BEUR16+T datasheet, MAX6018BEUR16+T pinout, MAX6018BEUR16+T application, or MAX6018BEUR16+T equivalent, key selection criteria include guaranteed 1.600V output tolerance, supply-current independence from VIN (0.1μA/V variation), load regulation of 700μV/mA, line regulation of 250μV/V, and compatibility with capacitive loads from 100pF to 1μF.
Technical Context
The MAX6018BEUR16+T is a three-terminal series voltage reference using a bandgap core with internal trimming for precision. Its architecture enables sourcing and sinking up to ±1mA load current while maintaining output stability across –40°C to +85°C without external components.
It achieves low dropout via optimized pass-element design, allowing operation as low as VIN = VOUT + 200mV. Supply current remains nearly constant over input voltage (ΔIIN/ΔVIN ≤ 0.5μA/V), eliminating resistor-based biasing and simplifying low-power system design.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.600V ±0.4% (max initial error at +25°C) |
| Temperature Drift | 50ppm/°C (max; ensures <±0.8mV drift over –40°C to +85°C) |
| Dropout Voltage | 200mV (max at 1mA load; enables operation from 1.8V supply) |
| Supply Current | 6μA (max over full temperature range; independent of VIN within spec) |
| Line Regulation | 250μV/V (max; output change per volt input variation from 1.8V–5.5V) |
| Load Regulation | 700μV/mA (max sourcing; supports stable reference under varying load conditions) |
| Noise (10Hz–10kHz) | 150μVRMS (low-noise performance suitable for precision ADCs) |
Pinout & Package
Package: 3-pin SOT23 (U3+1 footprint, outline 21-0051), RoHS-compliant, surface-mountable with standard reflow profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Supply Voltage Input | Accepts 1.8V–5.5V; requires 0.1μF bypass capacitor to GND for stability |
| 2 (OUT) | Reference Voltage Output | Delivers regulated 1.600V; requires ≥100pF load capacitance to ground for stability |
| 3 (GND) | Ground Reference | Common return path for IN and OUT; must be low-impedance for accuracy |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low supply current | 6μA max over –40°C to +85°C - extends battery life in always-on monitoring systems |
| Supply-voltage-independent IQ | 0.1μA/V variation - eliminates need for input-voltage compensation in power budgeting |
| Capacitive-load stability | Stable with 100pF–1μF output capacitance - accommodates layout parasitics and filtering needs |
| Low thermal hysteresis | 130ppm - minimizes calibration drift after thermal cycling in field-deployed equipment |
| High ripple rejection | 85dB at 120Hz - suppresses AC ripple from battery chargers or switching supplies |
Applications
| Battery Voltage Monitoring | Precision Data Acquisition |
|---|---|
|
Use Scenario: Real-time measurement of two-cell alkaline battery voltage during end-of-life discharge. IC Role / Device Role / Timing Role: Provides stable 1.600V reference for ADC conversion of battery voltage. Use Value: Enables accurate state-of-charge estimation down to 1.8V supply, leveraging 200mV dropout and 6μA IQ. |
Use Scenario: High-resolution analog front-end in portable multimeter or sensor node. IC Role / Device Role / Timing Role: Precision voltage reference for 16-bit SAR ADC with low noise and drift. Use Value: 150μVRMS noise and 50ppm/°C drift ensure <±1 LSB error over temperature in 1.6V-scale measurements. |
| Industrial Process Sensors | Handheld Medical Devices |
|
Use Scenario: Battery-powered pressure or temperature transmitter in remote industrial sites. IC Role / Device Role / Timing Role: Reference source for ratiometric sensor excitation and signal conditioning. Use Value: 0.4% initial accuracy and 130ppm thermal hysteresis maintain calibration integrity across seasonal ambient shifts. |
Use Scenario: Glucose meter or pulse oximeter operating on coin-cell batteries. IC Role / Device Role / Timing Role: Low-power reference for analog signal chain powering biosensor interfaces. Use Value: 6μA max supply current and 1.8V minimum input extend usable battery life by >30% versus higher-IQ alternatives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6012BEUR16+T | Same 1.6V output and B-grade accuracy (±0.4%), but higher 10μA max IQ and 100ppm/°C drift. | Less suitable for ultra-low-power battery monitoring; acceptable for cost-sensitive industrial sensors with relaxed drift specs. | Select MAX6012BEUR16+T only if lower cost outweighs 67% higher supply current and doubled drift. |
| REF3016AIDBZR | 1.6V output, ±0.2% A-grade accuracy, 50ppm/°C drift, but 50μA max IQ and 300mV dropout. | Not viable for 1.8V-supplied systems; better for higher-VIN, higher-accuracy applications where power is less constrained. | Choose REF3016AIDBZR only when ±0.2% initial accuracy is mandatory and supply ≥2.1V is available. |
Compared with MAX6018BEUR16+T, MAX6012BEUR16+T trades lower cost for higher power and drift, while REF3016AIDBZR offers tighter initial accuracy at the expense of 8× higher supply current and incompatible dropout - making MAX6018BEUR16+T uniquely balanced for 1.8V battery systems demanding sub-1% total error over temperature and time.
Availability
MAX6018BEUR16+T is available at Aetrix Electronics and suitable for battery voltage monitoring, precision data acquisition, industrial process sensors, handheld medical devices, and portable instrumentation requiring stable component supply with guaranteed long-term availability.
Supply support for MAX6018BEUR16+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 designs high-performance analog and mixed-signal semiconductor solutions for power, sensing, interface, and security applications.
The MAX6018 family was developed specifically for ultra-low-power, precision voltage referencing in space-constrained, battery-operated systems - emphasizing micropower operation, low dropout, and SOT23 integration.
FAQ
What is the guaranteed output voltage tolerance for MAX6018BEUR16+T over temperature?
The MAX6018BEUR16+T guarantees a 1.600V output with ±0.4% initial accuracy at +25°C and a maximum temperature coefficient of 50ppm/°C over –40°C to +85°C. This results in a worst-case output deviation of ±0.8mV due to temperature alone, plus initial error, yielding a total output range of 1.5936V to 1.6064V across its full operating range.
Can MAX6018BEUR16+T operate from a single 1.8V alkaline cell?
Yes - the MAX6018BEUR16+T is explicitly rated for operation from 1.8V input (VOUT + 200mV), making it compatible with fresh or end-of-life two-cell alkaline stacks (2.0V–3.2V) and even single-cell LiFePO4 (1.8V–2.5V). Its 200mV dropout ensures regulation remains active down to the minimum specified input.
Does MAX6018BEUR16+T require an external resistor or trimming network?
No - the MAX6018BEUR16+T is a fully self-contained, three-terminal series voltage reference. It does not require an external current-setting resistor (unlike shunt references) or trimming components. The 1.600V output is factory-trimmed and guaranteed without user adjustment.
What is the minimum and maximum capacitive load supported by MAX6018BEUR16+T?
The MAX6018BEUR16+T is stable with output capacitance from 100pF to 1μF. A minimum 100pF capacitor is required between OUT and GND for phase margin; values up to 1μF improve transient response and reduce noise without risking oscillation - enabling direct use with ADC input filters or local decoupling.
How does supply current vary with input voltage for MAX6018BEUR16+T?
The MAX6018BEUR16+T exhibits exceptional supply-current stability: quiescent current varies by only 0.1μA per volt of input voltage (ΔIIN/ΔVIN ≤ 0.5μA/V max). Over its 1.8V–5.5V input range, this contributes less than 1.9μA of variation - ensuring predictable power consumption regardless of battery voltage sag or supply rail fluctuations.
MAX6018BEUR16+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:
- ±0.4%
- 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
MAX6018BEUR16+T FAQ
1.How can I place an order for MAX6018BEUR16+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6018BEUR16+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 MAX6018BEUR16+T reliable?
The price and inventory of MAX6018BEUR16+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6018BEUR16+T is usually 5 days.
3.What payment methods are accepted for MAX6018BEUR16+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6018BEUR16+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6018BEUR16+T?
MAX6018BEUR16+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6018BEUR16+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 MAX6018BEUR16+T?
For technical support, including MAX6018BEUR16+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6018BEUR16+T requirements.
6.How does Aetrix verify that MAX6018BEUR16+T is sourced from the original manufacturer or authorized distributors?
All MAX6018BEUR16+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 MAX6018BEUR16+T meets industry standards.
7.What is the process for return or replacement of MAX6018BEUR16+T?
All MAX6018BEUR16+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6018BEUR16+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 MAX6018BEUR16+T part is unused and in its original packaging.
Return procedure for MAX6018BEUR16+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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