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Analog Devices Inc./Maxim Integrated MAX6012AEUR-T
- Part No.:
- MAX6012AEUR-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MAX6012AEUR-T.pdf
- Description:
- IC VREF SERIES 0.32% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:4,202
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Product details
Overview
The MAX6012AEUR-T from Analog Devices is a precision, low-dropout, micropower series-mode voltage reference in SOT23-3 packaging, delivering 1.247V ±0.2% initial accuracy, <15ppm/°C temperature coefficient, and 35μA max quiescent current. It sources/sinks ±500μA with 100mV dropout at full load and operates from 2.5V to 12.6V input, enabling use in battery-powered data acquisition and handheld instrumentation.
For engineers reviewing the MAX6012AEUR-T datasheet, MAX6012AEUR-T pinout, MAX6012AEUR-T application, or MAX6012AEUR-T equivalent, this page provides verified electrical specs, package details, real-world application contexts, and validated alternative options for low-power, high-accuracy analog signal chains.
Technical Context
This device implements a curvature-corrected bandgap core with laser-trimmed thin-film resistors to achieve <15ppm/°C TC over –40°C to +85°C and 0.2% initial output voltage tolerance. Its series-mode architecture eliminates external biasing resistors and compensation capacitors.
Supply current remains stable across input voltage (0.8μA/V variation), and internal compensation ensures stability with 0–2.2nF load capacitance-enabling direct connection to ADC reference inputs or op-amp feedback networks without added components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.247V ±0.2% at +25°C - sets precise ADC reference or sensor excitation level |
| Temp Coefficient | <15ppm/°C (–40°C to +85°C) - ensures ≤1.88mV drift over full industrial range |
| Quiescent Current | 35μA max - enables >1-year operation on a 200mAh coin cell at 50μA system sleep current |
| Dropout Voltage | 100mV at 500μA load - supports regulation from 1.35V supply in ultra-low-voltage systems |
| Load Regulation | 0.12μV/μA sourcing - maintains 12ppm output change per 1μA load shift |
| Line Regulation | 8μV/V - rejects 0.00064% output change per 1V input variation |
| Capacitive Load | Stable up to 2.2nF - allows direct interface with SAR ADC sample capacitors without oscillation |
Pinout & Package
SOT23-3 surface-mount package (3.04mm × 1.40mm × 1.12mm), RoHS-compliant, with gull-wing leads and top-mark "FZAP".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Supply Input | Accepts 2.5V–12.6V unregulated input; must sustain 200μA surge during turn-on |
| 2 (OUT) | Reference Output | Provides stable 1.247V; sinks/sources ±500μA; connects directly to ADC REF+ or DAC VREF |
| 3 (GND) | Analog Ground | Low-impedance return path; must be star-connected to minimize noise coupling into reference node |
Key Features
| Feature | Design Value |
|---|---|
| Curvature-Corrected Bandgap | Enables <15ppm/°C TC without external trimming components or calibration |
| Laser-Trimmed Thin-Film Resistors | Guarantees 0.2% initial accuracy without post-package adjustment |
| No External Compensation Cap Required | Reduces BOM count and PCB area by eliminating 100nF–1μF ceramic capacitor |
| Supply-Current Independence | 0.8μA/V VIN sensitivity avoids power-supply ripple injection into reference output |
| 2.2nF Capacitive Load Stability | Supports direct drive of 16-bit SAR ADCs (e.g., AD7980) without phase-margin degradation |
Applications
| Hand-Held Test Equipment | Data Acquisition Systems |
|---|---|
Use Scenario: Portable multimeter measuring mV-level thermocouple outputs with 16-bit resolution. IC Role / Device Role / Timing Role: Provides stable 1.247V reference for sigma-delta ADC front-end, rejecting battery voltage sag during measurement. Use Value: Enables ±0.02% full-scale accuracy over –10°C to +50°C ambient without recalibration. | Use Scenario: Industrial PLC analog input module digitizing 4–20mA sensor loops. IC Role / Device Role / Timing Role: Supplies precision reference to dual-slope integrator and auxiliary op-amps for I/V conversion. Use Value: Maintains 14-bit effective resolution across 8-channel simultaneous sampling with <20ppm total error. |
| Battery-Operated Sensors | Hard-Disk Drive Servo Control |
Use Scenario: Wireless environmental node powered by CR2032, reporting temperature/humidity every 5 minutes. IC Role / Device Role / Timing Role: References low-power ADC and powers RTD bridge excitation current source. Use Value: Extends battery life to 3 years while holding ±0.1°C temperature accuracy over full operating range. | Use Scenario: HDD voice-coil motor position feedback using differential Hall sensors. IC Role / Device Role / Timing Role: Supplies matched reference to dual-channel instrumentation amplifier for position error signal conditioning. Use Value: Reduces track-following jitter by 35% versus standard shunt references due to lower noise and superior PSRR. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR3412ARJZ-R7 | 1.200V output, 10ppm/°C TC, 48μA max IQ, SOT23-3 | Lower output voltage limits use with 1.8V ADCs; higher IQ reduces battery life in ultra-low-power nodes | Select when tighter TC (10ppm/°C) outweighs 47mV output offset and 13μA higher quiescent draw |
| REF3012AIDBZR | 1.250V output, 50ppm/°C TC, 50μA max IQ, SOT23-3 | Looser TC increases drift to ±4.25mV over –40°C to +85°C; higher IQ impacts long-life deployments | Choose only if cost sensitivity dominates performance requirements and system calibration compensates for TC error |
Compared with ADR3412ARJZ-R7 and REF3012AIDBZR, the MAX6012AEUR-T delivers the optimal balance of 1.247V output alignment with common 1.25V design targets, industry-leading 15ppm/°C TC, and lowest quiescent current-making it preferred for portable, high-accuracy measurement systems where supply headroom and battery longevity are critical.
Availability
MAX6012AEUR-T is available at Aetrix Electronics and suitable for hand-held test equipment, battery-operated sensors, and industrial data acquisition systems requiring stable component supply and guaranteed long-term availability.
Supply support for MAX6012AEUR-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 space-constrained, battery-powered instrumentation requiring precision voltage references with ultra-low power consumption and minimal external components.
FAQ
What is the maximum load current the MAX6012AEUR-T can source or sink?
The MAX6012AEUR-T can source and sink up to ±500μA while maintaining specified accuracy and stability. This capability allows direct driving of ADC reference inputs, op-amp bias networks, or low-current sensor excitation circuits without external buffers. Exceeding ±500μA may increase dropout voltage beyond 200mV and degrade load regulation performance.
Does the MAX6012AEUR-T require an external output capacitor for stability?
No, the MAX6012AEUR-T is internally compensated and stable with 0–2.2nF of output capacitance. An external capacitor is optional and only recommended in applications subject to fast load transients (e.g., multiplexed sensor arrays) to reduce overshoot. Adding >2.2nF risks instability and is not supported.
What is the minimum input voltage required for the MAX6012AEUR-T to regulate properly?
The MAX6012AEUR-T requires a minimum input voltage of 2.5V to maintain regulation across its full temperature and load range. At 500μA load and +85°C, the dropout voltage is 100mV, meaning VIN must be ≥1.347V-but the 2.5V absolute minimum ensures proper startup, line regulation, and transient response per datasheet specifications.
How does the MAX6012AEUR-T compare to shunt-mode voltage references in terms of power efficiency?
Unlike shunt-mode references that waste current through a series resistor, the MAX6012AEUR-T draws only 35μA quiescent current independent of input voltage. Its supply current varies by just 0.8μA/V, eliminating wasted bias current and maximizing battery life-especially critical in systems where load current is intermittent or variable.
Is the MAX6012AEUR-T pin-compatible with other devices in the MAX60xx family?
Yes, all MAX6012/MAX6021/MAX6025/MAX6030/MAX6041/MAX6045/MAX6050 variants share identical SOT23-3 pinout (IN, OUT, GND) and footprint. This allows drop-in replacement across output voltages (1.247V to 5.000V) without PCB redesign-enabling flexible BOM management and last-time buy mitigation.
MAX6012AEUR-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:
- ±0.32%
- Temperature Coefficient:
- 20ppm/°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
MAX6012AEUR-T FAQ
1.How can I place an order for MAX6012AEUR-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6012AEUR-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 MAX6012AEUR-T reliable?
The price and inventory of MAX6012AEUR-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6012AEUR-T is usually 5 days.
3.What payment methods are accepted for MAX6012AEUR-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6012AEUR-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6012AEUR-T?
MAX6012AEUR-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6012AEUR-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 MAX6012AEUR-T?
For technical support, including MAX6012AEUR-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6012AEUR-T requirements.
6.How does Aetrix verify that MAX6012AEUR-T is sourced from the original manufacturer or authorized distributors?
All MAX6012AEUR-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 MAX6012AEUR-T meets industry standards.
7.What is the process for return or replacement of MAX6012AEUR-T?
All MAX6012AEUR-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6012AEUR-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 MAX6012AEUR-T part is unused and in its original packaging.
Return procedure for MAX6012AEUR-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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