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Analog Devices Inc./Maxim Integrated MAX6012AEUR
- Part No.:
- MAX6012AEUR
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MAX6012AEUR.pdf
- Description:
- VOLTAGE REFERENCE
- Quantity:
- Payment:
- Shipping:
Inventory:2,168
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Product details
Overview
MAX6012AEUR from Maxim Integrated is a precision, low-dropout, micropower series-mode voltage reference in SOT23-3 package, delivering 1.247V ±0.2% initial accuracy, <15ppm/°C temperature coefficient, and 100mV dropout at 500µA load. It draws only 27µA quiescent current, supports ±500µA sourcing/sinking, and operates from (VOUT + 200mV) to 12.6V - ideal for battery-powered data acquisition and handheld instrumentation.
For engineers reviewing the MAX6012AEUR datasheet, MAX6012AEUR pinout, MAX6012AEUR application, or MAX6012AEUR equivalent, key selection criteria include output stability under varying load (0.12µV/µA load regulation), supply-voltage independence (0.8µA/V variation), and capacitor-free operation up to 2.2nF load capacitance in space-constrained designs.
Technical Context
The MAX6012AEUR employs a proprietary curvature-correction circuit and laser-trimmed thin-film resistors to achieve <15ppm/°C tempco and 0.2% initial accuracy across –40°C to +85°C. Its series-mode architecture eliminates external biasing resistors and compensation capacitors required by shunt references.
Internally compensated for stability with 0–2.2nF load capacitance, it delivers 30µs turn-on settling time to 0.1% of final value and maintains 8µV/V line regulation and 0.12µV/µA load regulation - enabling high-precision ADC/DAC biasing in low-power systems without layout overhead.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.247V ±0.2% (max initial error) - enables accurate 12-bit+ ADC reference without calibration. |
| Tempco | <15ppm/°C - ensures ≤18.7µV drift over 0–70°C ambient, critical for portable test equipment. |
| Quiescent Current | 27µA (typ), 35µA (max) - extends battery life in coin-cell–powered sensors beyond 10 years. |
| Dropout Voltage | 100mV at 500µA load - allows operation from 1.35V supply, supporting single-cell LiFePO₄ or alkaline systems. |
| Load Regulation | 0.12µV/µA - guarantees <60µV shift across full ±500µA load range, essential for precision current-sense amplifiers. |
| Line Regulation | 8µV/V - limits output change to <100µV over 2.5–12.6V input range, simplifying LDO selection. |
| Capacitive Load Stability | 0–2.2nF - eliminates need for output capacitor, saving PCB area in ultra-compact wearables. |
Pinout & Package
SOT23-3 surface-mount package (3-pin, 1.3mm × 2.9mm footprint) with standard JEDEC MO-178 outline and 0.95mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Supply Voltage Input | Accepts (VOUT + 200mV) to 12.6V; supplies internal bandgap core and output stage. |
| 2 (OUT) | Reference Voltage Output | Delivers stable 1.247V; sinks or sources ±500µA while maintaining regulation. |
| 3 (GND) | Ground Reference | Return path for supply and load currents; must be low-impedance for noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Initial Accuracy | ±0.2% - reduces system calibration burden in medical sensor front-ends. |
| Temperature Coefficient | <15ppm/°C - meets industrial-grade drift requirements without external compensation. |
| Supply Current Variation | 0.8µA/V - enables consistent power budgeting across wide input voltage ranges. |
| No External Capacitor Required | Stable with 0–2.2nF load - removes BOM item and placement risk in high-density layouts. |
| Low Dropout | 100mV @ 500µA - supports direct connection to low-VGS(th) MOSFETs in power monitoring circuits. |
Applications
| Hand-Held Test Equipment | Data Acquisition Systems |
|---|---|
Use Scenario: Portable multimeter measuring DC voltage with 16-bit SAR ADC. IC Role / Device Role / Timing Role: Primary voltage reference for ADC conversion and internal calibration. Use Value: 0.2% initial accuracy and 15ppm/°C tempco ensure measurement repeatability across field operating temperatures without recalibration. |
Use Scenario: Remote environmental sensor node logging temperature/humidity via sigma-delta ADC. IC Role / Device Role / Timing Role: Precision bias source for analog front-end and reference for ADC/DAC conversion. Use Value: 27µA quiescent current extends 10-year battery life; 2.2nF capacitor-free stability simplifies PCB routing in compact enclosure. |
| Industrial Process Control | Battery-Operated Medical Devices |
Use Scenario: 4–20mA transmitter conditioning analog signals in factory automation. IC Role / Device Role / Timing Role: Stable excitation reference for RTD/thermocouple signal conditioning. Use Value: 0.12µV/µA load regulation prevents gain error when driving variable-impedance sensor bridges. |
Use Scenario: Wearable ECG monitor using ultra-low-power microcontroller and analog front-end. IC Role / Device Role / Timing Role: Low-noise reference for biopotential amplifier and ADC reference rail. Use Value: 65µVRMS (0.1–10Hz) noise and 100mV dropout enable clean signal acquisition from single 3V coin cell. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF3012AIDBZR | 1.2V output, 50ppm/°C max tempco, 50µA quiescent current, SOT23-3 | Higher drift and current limit performance; suitable for cost-sensitive consumer applications where 0.2% accuracy suffices. | Select REF3012AIDBZR only if tempco <15ppm/°C and sub-35µA IQ are not required. |
| ADR3412ARJZ-R7 | 1.2V output, 10ppm/°C max tempco, 120µA quiescent current, SOT23-3 | Lower tempco but 4.5× higher supply current; requires external 1µF capacitor for stability. | Choose ADR3412ARJZ-R7 only when ultra-low drift dominates over battery life and board area constraints. |
Compared with REF3012AIDBZR and ADR3412ARJZ-R7, the MAX6012AEUR uniquely balances 0.2% initial accuracy, <15ppm/°C tempco, 27µA quiescent current, and capacitor-free 2.2nF load stability - making it optimal for space- and energy-constrained industrial and medical edge devices.
Availability
MAX6012AEUR is available at Aetrix Electronics and suitable for hand-held test equipment, data acquisition systems, and battery-operated medical devices requiring stable component supply with guaranteed long-term availability.
Supply support for MAX6012AEUR 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 (now part of Analog Devices) designs precision analog and mixed-signal ICs for demanding industrial, medical, and communications applications.
The MAX6012 family targets ultra-low-power, high-accuracy voltage references for battery-operated instrumentation and portable sensing - emphasizing micropower operation, minimal external components, and robust thermal performance.
FAQ
What is the output voltage tolerance and temperature coefficient of the MAX6012AEUR?
The MAX6012AEUR has an output voltage of 1.247V with ±0.2% initial accuracy (max) and a temperature coefficient of <15ppm/°C across –40°C to +85°C. These specifications are guaranteed by design and production tested at +25°C, ensuring predictable drift behavior in field-deployed MAX6012AEUR units used for precision analog signal chains.
Does the MAX6012AEUR require an external output capacitor for stability?
No, the MAX6012AEUR is internally compensated and stable with capacitive loads from 0 to 2.2nF - no external capacitor is required. This eliminates a BOM item and PCB footprint, directly benefiting MAX6012AEUR implementations in space-constrained wearables and handheld instruments where board real estate is at a premium.
What is the minimum input voltage needed for the MAX6012AEUR to maintain regulation?
The MAX6012AEUR requires a minimum input voltage of (VOUT + 200mV), i.e., 1.447V, to maintain regulation at full 500µA load. Its 100mV dropout voltage at 500µA enables reliable operation from single-cell alkaline or LiFePO₄ sources, making the MAX6012AEUR well-suited for legacy battery-powered systems with tight voltage margins.
How does the supply current of the MAX6012AEUR vary with input voltage?
The MAX6012AEUR exhibits only 0.8µA/V variation in supply current across its input voltage range - a key advantage over shunt references whose current scales linearly with VIN. This near-constant 27µA (typ) draw simplifies power budgeting and extends battery life in MAX6012AEUR-based sensor nodes operating across wide supply rails.
Can the MAX6012AEUR sink and source load current, and what are the limits?
Yes, the MAX6012AEUR can both source and sink up to ±500µA while maintaining output regulation. This bidirectional capability allows it to drive dynamic loads such as ADC reference inputs, op-amp bias networks, or DAC feedback paths - a critical feature distinguishing the MAX6012AEUR from fixed-sink-only shunt references.
MAX6012AEUR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Series:
- -
- Packaging:
- Bulk
- 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 FAQ
1.How can I place an order for MAX6012AEUR through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6012AEUR 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 reliable?
The price and inventory of MAX6012AEUR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6012AEUR is usually 5 days.
3.What payment methods are accepted for MAX6012AEUR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6012AEUR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6012AEUR?
MAX6012AEUR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6012AEUR 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?
For technical support, including MAX6012AEUR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6012AEUR requirements.
6.How does Aetrix verify that MAX6012AEUR is sourced from the original manufacturer or authorized distributors?
All MAX6012AEUR 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 meets industry standards.
7.What is the process for return or replacement of MAX6012AEUR?
All MAX6012AEUR units undergo pre-shipment inspection (PSI). If there is an issue with MAX6012AEUR, 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 part is unused and in its original packaging.
Return procedure for MAX6012AEUR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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