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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:1,963
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Product details
Overview
MAX6012BEUR+T from Analog Devices is a precision series-mode voltage reference in SOT23-3 package, delivering 1.247V output with ±0.48% initial accuracy and ≤30ppm/°C temperature coefficient over –40°C to +85°C. It draws only 35μA quiescent current, supports ±500μA load, and maintains stability with up to 2.2nF capacitive load-ideal for battery-powered data acquisition and handheld instrumentation.
For engineers reviewing the MAX6012BEUR+T datasheet, MAX6012BEUR+T pinout, MAX6012BEUR+T application, or MAX6012BEUR+T equivalent, key selection criteria include low dropout (100mV at 500μA), supply-current independence (0.8μA/V variation), and no external compensation capacitor requirement.
Technical Context
The MAX6012BEUR+T implements a curvature-corrected bandgap core with laser-trimmed thin-film resistors to achieve <30ppm/°C drift across –40°C to +85°C. Its series-mode architecture eliminates dependency on external bias resistors and enables true supply-voltage-independent operation.
Internally compensated for 0–2.2nF load capacitance, it avoids stability compromises common in shunt references. The device features 8μV/V line regulation and 0.12μV/μA load regulation-critical for high-resolution ADC biasing and sensor excitation circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.247V ±0.48% at +25°C - tight tolerance enables direct use in 12-bit+ SAR ADC references without trimming |
| Temp Coefficient | ≤30ppm/°C (–40°C to +85°C) - ensures <±0.37mV drift over full range, suitable for industrial-grade sensing |
| Quiescent Current | ≤35μA - ultra-low power supports >10-year battery life in wireless sensor nodes |
| Dropout Voltage | 100mV at 500μA load - allows operation from 1.35V supply, compatible with single Li-ion or two alkaline cells |
| Load Current | ±500μA sourcing/sinking - drives typical op-amp inputs and ADC reference buffers without gain error |
| Capacitive Load | Stable with 0–2.2nF - eliminates need for external compensation, saving PCB area in space-constrained designs |
| Line Regulation | 8μV/V - <0.00065% change per volt input variation, critical for unregulated battery rails |
Pinout & Package
SOT23-3 package (JEDEC TO-236AB), 1.3mm × 2.9mm footprint, 1.12mm max height, RoHS-compliant lead-free plating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Supply Input | Voltage input range 2.5V–12.6V; withstands –0.3V to +13.5V absolute max; powers internal bandgap core |
| 2 (OUT) | Reference Output | 1.247V precision output; capable of sourcing/sinking ±500μA while maintaining regulation |
| 3 (GND) | Analog Ground | Low-impedance return path; must be connected directly to clean system ground plane to minimize noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| Curvature-Corrected Bandgap | Reduces second-order thermal drift, enabling ≤30ppm/°C performance over extended temperature range |
| Laser-Trimmed Thin-Film Resistors | Ensures ±0.48% initial accuracy without post-package calibration, reducing test cost and time |
| No External Compensation Cap Required | Eliminates 1–10nF ceramic capacitor and associated layout area, simplifying design for wearables and IoT edge nodes |
| Supply-Current Independence | 0.8μA/V variation over 2.5–12.6V input range - avoids dynamic supply current errors in varying-battery applications |
| Low Dropout Operation | 100mV dropout at full 500μA load enables use in sub-1.5V systems when paired with LDOs or DC-DC converters |
Applications
| Hand-Held Test Equipment | Data Acquisition Systems |
|---|---|
Use Scenario: Portable multimeter reference rail powering 16-bit delta-sigma ADC and front-end signal conditioning. IC Role / Device Role / Timing Role: Precision voltage reference providing stable 1.247V基准 for ADC conversion and sensor excitation. Use Value: ±0.48% initial accuracy and ≤30ppm/°C drift ensure measurement repeatability across field operating temperatures without recalibration. | Use Scenario: Industrial PLC analog input module measuring 4–20mA loop sensors with cold-junction compensation. IC Role / Device Role / Timing Role: Low-noise, low-drift reference for thermocouple amplifier and multiplexed ADC reference switching. Use Value: 0.12μV/μA load regulation minimizes gain error during channel scanning; 2.2nF capacitive-load stability avoids external cap in dense I/O modules. |
| Battery-Operated Medical Sensors | Hard-Disk Drive Servo Control |
Use Scenario: Wearable ECG front-end requiring ultra-low-power, stable bias for instrumentation amplifiers and ADCs. IC Role / Device Role / Timing Role: Primary voltage reference supplying bias to analog signal chain under intermittent 3.0–3.6V Li-poly battery supply. Use Value: 35μA quiescent current extends battery life; 100mV dropout allows operation down to 1.35V, supporting deep discharge cycles. | Use Scenario: HDD voice-coil motor (VCM) driver IC requiring precise 1.25V reference for DAC-based position feedback control. IC Role / Device Role / Timing Role: High-stability reference for closed-loop servo DAC, immune to supply ripple from switching regulators. Use Value: 86dB ripple rejection at 120Hz suppresses switching noise; 30μs turn-on settling ensures fast spin-up calibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF3012AIDBZR | 1.2V output, ±0.2% initial accuracy, 50ppm/°C max TC, 50μA IQ | Higher tempco and quiescent current; requires 1µF output cap for stability | Choose REF3012AIDBZR only if tighter initial accuracy is prioritized over temperature stability and board area |
| ADR3412ARJZ-R7 | 1.2V output, ±0.1% initial accuracy, 25ppm/°C max TC, 120μA IQ, 2.5V min VIN | Higher supply current; not stable below 1nF load; larger 6-lead SOT23-6 package | Choose ADR3412ARJZ-R7 only if ±0.1% initial accuracy is mandatory and higher power dissipation is acceptable |
Compared with REF3012AIDBZR and ADR3412ARJZ-R7, the MAX6012BEUR+T offers superior temperature stability (≤30ppm/°C vs. 50/25ppm/°C), lowest quiescent current (35μA), and smallest footprint (SOT23-3), making it optimal for space- and power-constrained portable instrumentation.
Availability
MAX6012BEUR+T is available at Aetrix Electronics and suitable for hand-held test equipment, data acquisition systems, and battery-operated medical sensors requiring stable component supply with guaranteed long-term availability.
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, headquartered in Wilmington, MA.
The MAX6012 family was designed specifically for ultra-low-power, high-accuracy voltage referencing in portable and space-constrained systems-emphasizing minimal external components, wide input range, and robust thermal performance.
FAQ
What is the output voltage tolerance of the MAX6012BEUR+T at +25°C?
The MAX6012BEUR+T has an output voltage of 1.247V with a tolerance of ±0.48% at +25°C, corresponding to a range of 1.241V to 1.253V. This specification is guaranteed by production testing and reflects the 'B' grade accuracy bin defined in the MAX6012 datasheet. The MAX6012BEUR+T achieves this without post-package trimming due to laser-trimmed thin-film resistors.
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. Unlike many voltage references, it does not require an external capacitor for phase margin or oscillation prevention. This eliminates a common bill-of-materials item and saves PCB area-especially valuable in SOT23-3 designs where board space is highly constrained.
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 output regulation within specifications. At 500μA load, its dropout voltage remains ≤200mV, and load regulation is specified at 0.12μV/μA for sourcing and 0.15μV/μA for sinking. This capability supports driving op-amp inputs, ADC reference buffers, and low-current sensor bias networks directly.
How does the supply current of the MAX6012BEUR+T vary with input voltage?
The MAX6012BEUR+T exhibits near-constant quiescent supply current: ≤35μA over its full 2.5V–12.6V input range, with only 0.8μA/V variation. This supply-voltage independence is a key advantage over shunt references, which require external resistors and draw current proportional to VIN. The MAX6012BEUR+T's behavior ensures predictable power budgeting across battery discharge profiles.
Is the MAX6012BEUR+T pin-compatible with other devices in the MAX60xx family?
Yes, all members of the MAX6012/MAX6021/MAX6025/MAX6030/MAX6041/MAX6045/MAX6050 family-including the MAX6012BEUR+T-share identical SOT23-3 pinout (IN, OUT, GND), same footprint, and compatible electrical interfaces. This allows drop-in replacement across output voltages (1.247V to 5.000V) without PCB layout changes, provided input voltage and load requirements are verified per part.
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:
- Active
- 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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