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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:6,125
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Product details
Overview
MAX6012AEUR+T from Analog Devices is a precision 1.247V series-mode voltage reference in SOT23-3 package, featuring 0.2% initial accuracy, <15ppm/°C temperature coefficient, and 35μA max quiescent current. It delivers ±500μA load drive capability with only 100mV dropout at full load and operates from 2.5V to 12.6V input-ideal for high-accuracy ADC/DAC biasing in portable instrumentation.
For engineers reviewing the MAX6012AEUR+T datasheet, MAX6012AEUR+T pinout, MAX6012AEUR+T application, or MAX6012AEUR+T equivalent, this page provides verified electrical specs, real-world use cases, validated alternatives, and supply-chain support for low-power, space-constrained designs requiring stable 1.25V reference performance across -40°C to +85°C.
Technical Context
The MAX6012AEUR+T 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 tolerance. Its series-mode architecture eliminates external bias resistors and compensation capacitors while maintaining stability with 0–2.2nF load capacitance.
It draws only 27–35μA supply current with just 0.8μA/V variation versus input voltage (2.5V–12.6V), enabling direct integration into battery-powered systems where supply efficiency and thermal headroom are critical-unlike shunt references that waste current across varying VIN.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.247V ±0.004V at +25°C - tight tolerance enables 12-bit+ system accuracy without calibration |
| Temp Coefficient | <15ppm/°C (–40°C to +85°C) - ensures <±0.015% output drift over full industrial range |
| Quiescent Current | 27–35μA - ultra-low power supports multi-year coin-cell operation in IoT sensors |
| Dropout Voltage | 100mV at 500μA load - allows operation from 1.35V supply, compatible with single Li-ion or 2xAA cells |
| Load Regulation | 0.12μV/μA sourcing - maintains <60μV shift across full ±500μA load range for precision analog front-ends |
| Line Regulation | 8μV/V - rejects supply ripple up to 12.6V with minimal output perturbation |
| Capacitive Load Stability | 0–2.2nF - eliminates need for external capacitor, saving PCB area in wearables and medical patches |
Pinout & Package
SOT23-3 surface-mount package (JEDEC TO-236AB); 2.92mm × 1.30mm × 1.00mm body; RoHS-compliant; top-mark "FZAP".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Supply Input | Accepts 2.5V–12.6V; supplies internal bandgap core and output stage; no external resistor required |
| 2 (OUT) | Reference Output | Provides regulated 1.247V; sources/sinks ±500μA; stable without external capacitor up to 2.2nF |
| 3 (GND) | Analog Ground | Return path for reference current; must be low-impedance connection to minimize noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| Series-mode architecture | Eliminates external bias resistor and compensation capacitor-reduces BOM count and layout complexity |
| Curvature-corrected bandgap | Enables <15ppm/°C TC over –40°C to +85°C without trimming or post-assembly calibration |
| Supply-current independence | 0.8μA/V VIN sensitivity ensures consistent 35μA max draw across 2.5V–12.6V input range |
| Low-dropout operation | 100mV dropout at 500μA allows use with 1.35V minimum supply-critical for energy-harvesting systems |
| Capacitive-load tolerance | Stable with 0–2.2nF output capacitance-enables direct driving of SAR ADC sample capacitors |
Applications
| Portable Data Loggers | Industrial Sensor Transmitters |
|---|---|
Use Scenario: Battery-powered environmental sensor node measuring temperature/humidity with 16-bit sigma-delta ADC. IC Role / Device Role / Timing Role: Provides stable 1.247V reference for ADC VREF input and DAC biasing in analog signal conditioning chain. Use Value: Enables ±0.01% measurement accuracy over –25°C to +70°C ambient with no recalibration, extending field deployment life. |
Use Scenario: 4–20mA loop-powered pressure transmitter operating in hazardous areas. IC Role / Device Role / Timing Role: Supplies precision reference for current-loop DAC and sensor bridge excitation in isolated analog front-end. Use Value: Maintains <±0.1% full-scale error across 4–36V loop supply and –40°C to +85°C housing temperature. |
| Medical Wearables | Energy-Harvesting IoT Nodes |
Use Scenario: ECG patch with ultra-low-power MCU and analog front-end powered by thin-film battery. IC Role / Device Role / Timing Role: Reference source for biopotential amplifier gain-setting and ADC conversion in sub-100μA system. Use Value: Delivers 1.247V with <35μA supply current and 100mV dropout-enables operation down to 1.35V battery voltage. |
Use Scenario: Solar-powered soil moisture sensor using buck-boost regulator with variable 1.8–5.5V output. IC Role / Device Role / Timing Role: Stable reference for ADC and comparator thresholds under dynamically changing supply conditions. Use Value: 0.8μA/V supply current variation ensures predictable power budget regardless of harvested voltage fluctuations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR3412ARJZ-R7 | 1.200V output, 10ppm/°C max TC, 3.5μA typical IQ, SOT23-5 package | Lower supply current but fixed 1.200V output; requires 5-pin layout and external decoupling | Select when ultra-low IQ (<5μA) dominates over output voltage flexibility and board area |
| REF3012AIDBZR | 1.250V output, 50ppm/°C max TC, 50μA max IQ, SOT23-3 package | Higher tempco and quiescent current; wider initial tolerance (±0.5%) | Select when cost sensitivity outweighs precision requirements and 50ppm/°C drift is acceptable |
Compared with ADR3412ARJZ-R7 and REF3012AIDBZR, the MAX6012AEUR+T offers the optimal balance of 1.247V output accuracy, <15ppm/°C stability, and SOT23-3 footprint-making it preferred for space-constrained, battery-operated systems demanding 12-bit+ measurement fidelity without layout redesign.
Availability
MAX6012AEUR+T is available at Aetrix Electronics and suitable for portable data loggers, industrial sensor transmitters, and medical wearables requiring stable component supply with guaranteed long-term availability and traceable sourcing.
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, serving industrial, automotive, communications, and healthcare markets since 1965.
The MAX6012AEUR+T belongs to Analog Devices' precision voltage reference product line, engineered specifically for low-power, high-accuracy applications where stability, small size, and supply efficiency are critical-such as portable instrumentation and battery-constrained IoT endpoints.
FAQ
What is the output voltage tolerance of the MAX6012AEUR+T at +25°C?
The MAX6012AEUR+T has an output voltage of 1.247V with a maximum deviation of ±0.004V (±0.32%) at +25°C, corresponding to its 0.2% initial accuracy specification. This tight tolerance is achieved via laser trimming of thin-film resistors and is guaranteed across all units in production testing per the datasheet's Electrical Characteristics table for MAX6012A grade.
Can the MAX6012AEUR+T operate from a 1.8V supply?
No, the MAX6012AEUR+T requires a minimum input voltage of 2.5V as specified in its absolute maximum ratings and electrical characteristics. At 1.8V, the device will not regulate-its dropout voltage is 100mV at 500μA, so the lowest functional supply is 1.35V only if output were 1.25V; however, the 2.5V minimum is enforced by internal circuitry and line-regulation test conditions.
Does the MAX6012AEUR+T require an external output capacitor for stability?
No, the MAX6012AEUR+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 load or supply steps-not for basic stability. This eliminates a component and saves PCB area in space-critical designs like wearables and sensor nodes.
How does the supply current of the MAX6012AEUR+T vary with input voltage?
The MAX6012AEUR+T exhibits only 0.8μA/V variation in supply current across its 2.5V–12.6V input range, meaning total quiescent current stays within 27–35μA. This near-constant draw-unlike shunt references whose current scales with VIN-maximizes battery life and simplifies power budgeting in wide-input-voltage applications such as industrial 4–20mA loops.
What is the maximum load current the MAX6012AEUR+T can source or sink?
The MAX6012AEUR+T can source or sink up to ±500μA while maintaining regulation within specifications. Its output stage is designed for bidirectional current flow, supporting both active pull-up (e.g., biasing op-amp inputs) and pull-down (e.g., driving ADC reference inputs) without external components-enabling flexible analog signal conditioning in compact layouts.
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:
- Active
- 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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