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Analog Devices Inc./Maxim Integrated MAX6012BEUR-T
- Part No.:
- MAX6012BEUR-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MAX6012BEUR-T.pdf
- Description:
- IC VREF SERIES 0.48% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:4,893
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Product details
Overview
MAX6012BEUR-T from Analog Devices is a precision, low-dropout, micropower series-mode voltage reference in SOT23-3 package, delivering 1.247V ±0.48% initial accuracy, <30ppm/°C temperature coefficient over –40°C to +85°C, and 100mV dropout at 500μA load current. It serves as a stable reference for ADCs, DACs, and sensor signal conditioning in space-constrained, battery-powered systems.
For engineers reviewing the MAX6012BEUR-T datasheet, MAX6012BEUR-T pinout, MAX6012BEUR-T application, or MAX6012BEUR-T equivalent, this page provides verified specifications, SOT23-3 terminal mapping, real-world use cases in handheld instrumentation and industrial data acquisition, and two validated alternative parts with documented functional trade-offs.
Technical Context
The MAX6012BEUR-T employs a proprietary curvature-correction circuit and laser-trimmed thin-film resistors to achieve <30ppm/°C tempco and ±0.48% initial accuracy. Its series-mode architecture eliminates external biasing resistors and enables supply-current independence (35μA max, varying only 0.8μA/V with VIN).
Internally compensated for stability with 0–2.2nF capacitive loads, it requires no external capacitor-reducing board area-and supports bidirectional 500μA output current (source/sink) while maintaining 0.12μV/μA load regulation and 8μV/V line regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.247V ±0.48% at +25°C - sets absolute accuracy baseline for 12-bit+ converter calibration |
| Tempco (–40°C to +85°C) | ≤30ppm/°C - ensures ≤±0.37mV drift across full industrial temperature range |
| Quiescent Supply Current | ≤35μA - enables >1-year battery life in 10μA-average-power IoT sensors |
| Dropout Voltage | 100mV at 500μA load - allows operation from 1.35V supply in single-cell LiFePO₄ systems |
| Load Regulation | 0.12μV/μA sourcing - contributes <60μV error under full 500μA load variation |
| Capacitive Load Stability | 0–2.2nF - eliminates need for output capacitor, saving PCB area in wearables |
| Supply Voltage Range | 2.5V to 12.6V - supports wide-input industrial power rails without external regulators |
Pinout & Package
SOT23-3 package (JEDEC TO-236AB), 2.92mm × 1.30mm × 1.00mm body, gull-wing leads, RoHS-compliant, tape-and-reel packaging.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Supply Voltage Input | Accepts 2.5V–12.6V input; supplies internal bandgap core and output buffer |
| 2 (OUT) | Reference Voltage Output | Delivers regulated 1.247V; capable of sourcing/sinking ±500μA with <0.12μV/μA regulation |
| 3 (GND) | Ground Reference | Return path for supply and load currents; must be low-impedance to maintain 15ppm-level stability |
Key Features
| Feature | Design Value |
|---|---|
| Series-mode architecture | Eliminates external bias resistor and associated power waste-critical for energy harvesting nodes |
| Internal compensation | Stable with 0–2.2nF output capacitance; removes need for layout-sensitive external capacitor |
| Ultra-low supply current variation | Only 0.8μA/V change vs. VIN-enables accurate current budgeting across wide input ranges |
| Bidirectional output drive | ±500μA sink/source capability supports active filtering and reference buffering without external op-amps |
| Low dropout | 100mV at full 500μA load permits direct use after low-ESR LDOs or single-cell batteries |
Applications
| Portable Medical Sensors | Industrial Data Acquisition |
|---|---|
Use Scenario: Battery-powered ECG front-end with 16-bit SAR ADC and analog front-end gain stages. IC Role / Device Role / Timing Role: Precision voltage reference for ADC VREF and PGA offset calibration. Use Value: 0.48% initial accuracy and 30ppm/°C tempco ensure <±1 LSB error over temperature without recalibration. |
Use Scenario: 4–20mA loop-powered transmitter with microcontroller, DAC, and isolation. IC Role / Device Role / Timing Role: Stable 1.247V reference for DAC output scaling and sensor excitation. Use Value: 35μA quiescent current enables full functionality within 3.5mA loop budget; 100mV dropout allows operation down to 1.35V rail. |
| Handheld Test Equipment | Hard-Disk Drive Servo Control |
Use Scenario: Pocket-sized multimeter with auto-ranging, true-RMS conversion, and LCD backlight control. IC Role / Device Role / Timing Role: Primary reference for dual-slope integrator and ADC reference switching. Use Value: 0.12μV/μA load regulation prevents reading drift during range changes; SOT23-3 footprint saves space in compact enclosure. |
Use Scenario: Voice-coil motor driver IC requiring precise bias references for closed-loop position feedback. IC Role / Device Role / Timing Role: Low-noise reference for analog comparators and DACs in servo loop calibration. Use Value: 12μVp-p (0.1–10Hz) noise floor avoids introducing jitter into position error signals; 2.2nF capacitive-load tolerance simplifies layout near high-speed digital sections. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6012AEUR+T | 0.2% initial accuracy (vs. 0.48% for MAX6012BEUR-T); same tempco, dropout, and package | Required where tighter initial tolerance is needed for factory calibration without trimming | Select when system-level accuracy budget demands <±2.5mV absolute reference error at +25°C |
| ADR3412ARJZ-R7 | 1.2V output (vs. 1.247V); 10ppm/°C max tempco; 4μA typical quiescent current; same SOT23-3 | Lower power but lower output voltage-requires redesign of reference-dependent gain networks | Choose for ultra-low-power (<5μA) applications where 1.2V suffices and 0.047V offset is acceptable |
Compared with MAX6012AEUR+T, the MAX6012BEUR-T trades 0.28% initial accuracy for cost sensitivity in high-volume production; versus ADR3412ARJZ-R7, it delivers higher output voltage and better load regulation at the expense of 30× higher quiescent current-making it optimal for accuracy-critical, moderate-power industrial nodes.
Availability
MAX6012BEUR-T is available at Aetrix Electronics and suitable for portable medical sensors, industrial data acquisition modules, handheld test equipment, and hard-disk drive servo control requiring stable component supply and long-term parametric consistency.
Supply support for MAX6012BEUR-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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.
The MAX6012 family was designed specifically for battery-operated, space-constrained systems needing precision voltage references with ultra-low quiescent current and zero external components-targeting handheld instrumentation and sensor nodes.
FAQ
What is the maximum load current the MAX6012BEUR-T can source or sink?
The MAX6012BEUR-T can source or sink up to ±500μA while maintaining specified load regulation (0.12μV/μA sourcing). Exceeding this current may cause output voltage deviation beyond datasheet limits or increased dropout. The device remains stable under short-circuit conditions to GND or IN for continuous operation if VIN < 6V, or up to 60 seconds if VIN ≥ 6V.
Does the MAX6012BEUR-T require an external output capacitor for stability?
No, the MAX6012BEUR-T is internally compensated and stable with output capacitance ranging from 0 to 2.2nF. An external capacitor is optional and used only to improve transient response during large load steps-not required for basic stability. This eliminates board area and BOM cost in space-critical designs like wearables and handheld tools.
What is the supply voltage range for reliable operation of the MAX6012BEUR-T?
The MAX6012BEUR-T operates reliably from 2.5V to 12.6V. Below 2.5V, the device may not regulate properly; above 12.6V risks exceeding absolute maximum ratings. For 1.247V output, minimum input is 2.5V-providing 1.253V headroom-enabling use with low-voltage sources such as single-cell LiFePO₄ (nominal 3.2V) or boosted coin cells.
How does the MAX6012BEUR-T's temperature coefficient compare to the MAX6012AEUR+T variant?
Both MAX6012BEUR-T and MAX6012AEUR+T have identical temperature coefficient specifications: ≤30ppm/°C over –40°C to +85°C. The difference lies solely in initial accuracy (±0.48% vs. ±0.2%), not thermal performance. Therefore, long-term stability over temperature is equivalent between the two variants.
Can the MAX6012BEUR-T be used in negative-reference configurations?
Yes-the MAX6012BEUR-T can generate a negative reference when paired with external components. Figure 1 in the datasheet shows a method using the MAX681 charge-pump inverter and ICL7652 chopper-stabilized op-amp to create bipolar ±1.247V references from a single +3V or +5V supply. The MAX6012BEUR-T itself remains a positive-only output device.
MAX6012BEUR-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:
- Obsolete
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 1.247V
- Voltage - Output (Max):
- -
- Current - Output:
- 500 µA
- Tolerance:
- ±0.48%
- Temperature Coefficient:
- 30ppm/°C
- Noise - 0.1Hz to 10Hz:
- 12µVp-p
- Noise - 10Hz to 10kHz:
- 65µVrms
- Voltage - Input:
- 2.5V ~ 12.6V
- Current - Supply:
- 35µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
MAX6012BEUR-T FAQ
1.How can I place an order for MAX6012BEUR-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6012BEUR-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 MAX6012BEUR-T reliable?
The price and inventory of MAX6012BEUR-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6012BEUR-T is usually 5 days.
3.What payment methods are accepted for MAX6012BEUR-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6012BEUR-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6012BEUR-T?
MAX6012BEUR-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6012BEUR-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 MAX6012BEUR-T?
For technical support, including MAX6012BEUR-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6012BEUR-T requirements.
6.How does Aetrix verify that MAX6012BEUR-T is sourced from the original manufacturer or authorized distributors?
All MAX6012BEUR-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 MAX6012BEUR-T meets industry standards.
7.What is the process for return or replacement of MAX6012BEUR-T?
All MAX6012BEUR-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6012BEUR-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 MAX6012BEUR-T part is unused and in its original packaging.
Return procedure for MAX6012BEUR-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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