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Analog Devices Inc./Maxim Integrated MAX6025AEUR+T
- Part No.:
- MAX6025AEUR+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MAX6025AEUR+T.pdf
- Description:
- IC VREF SERIES 0.2% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,609
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Product details
Overview
The MAX6025AEUR+T from Analog Devices is a precision 2.500V series-mode voltage reference in SOT23-3 package, featuring 0.2% initial accuracy, <15ppm/°C temperature coefficient, and 100mV dropout at 500μA load current. It delivers ultra-low 35μA quiescent current and supports ±500μA sourcing/sinking for high-accuracy ADC/DAC biasing in portable instrumentation.
For engineers reviewing the MAX6025AEUR+T datasheet, MAX6025AEUR+T pinout, MAX6025AEUR+T application, or MAX6025AEUR+T equivalent, key selection criteria include output stability under varying load (0.14μV/μA load regulation), supply-voltage independence (0.8μA/V variation), and capacitive-load tolerance up to 2.2nF without external compensation.
Technical Context
This device uses a proprietary curvature-correction circuit and laser-trimmed thin-film resistors to achieve <20ppm/°C TC over –40°C to +85°C and 0.2% initial accuracy. Its series-mode architecture eliminates external bias resistors and enables supply-current independence from VIN.
Internally compensated for stability with 0–2.2nF load capacitance, it avoids board-area penalties of external compensation capacitors. Dropout voltage remains ≤200mV across full temperature range at 500μA load, supporting operation in low-voltage battery systems down to VOUT + 0.2V input.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.500V ±0.2% at +25°C - ensures precise scaling for 12-bit+ data converters |
| Temp Coefficient | <15ppm/°C (–40°C to +85°C) - maintains <±0.03% output drift across industrial temperature range |
| Quiescent Current | 35μA max - enables >10-year battery life in always-on sensor nodes |
| Dropout Voltage | 100mV at 500μA load - allows operation from 2.6V supply in single-cell Li-ion systems |
| Load Regulation | 0.14μV/μA sourcing - limits output shift to <70μV over full 500μA load range |
| Line Regulation | 15μV/V - rejects <0.075mV change per volt of input variation in noisy power rails |
| Capacitive Load | Stable with 0–2.2nF - eliminates need for external capacitor in space-constrained PCB layouts |
Pinout & Package
SOT23-3 package (JEDEC TO-236AB), 2.92mm × 1.30mm × 1.00mm body, RoHS-compliant, tape-and-reel packaging for automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Supply Voltage Input | Accepts 2.7V to 12.6V input; minimum VIN = VOUT + 0.2V ensures regulation |
| 2 (OUT) | Reference Voltage Output | Provides stable 2.500V output; capable of sourcing/sinking ±500μA with <0.14μV/μA regulation |
| 3 (GND) | Ground Reference | Low-impedance return path; must be connected directly to clean analog ground plane |
Key Features
| Feature | Design Value |
|---|---|
| Curvature-corrected bandgap core | Enables <15ppm/°C TC without external trimming components |
| Laser-trimmed thin-film resistors | Guarantees 0.2% initial accuracy without post-package calibration |
| No external compensation required | Saves ≥1.5mm² PCB area vs. shunt references needing 100nF–1μF caps |
| Supply-current independence | 0.8μA/V VIN variation prevents wasted current in variable-battery systems |
| ±500μA bidirectional load drive | Directly biases ADC reference inputs and DAC feedback networks without op-amp buffers |
Applications
| Portable Data Loggers | Industrial Sensor Transmitters |
|---|---|
Use Scenario: Battery-powered environmental monitors logging temperature, humidity, and pressure every 10 seconds. IC Role / Device Role / Timing Role: Provides stable 2.500V reference for 16-bit SAR ADCs converting sensor signals. Use Value: 0.2% initial accuracy and <15ppm/°C TC ensure <±0.02% total measurement error over –25°C to +60°C field operating range. |
Use Scenario: 4–20mA loop-powered transmitters conditioning RTD/thermocouple outputs in factory automation. IC Role / Device Role / Timing Role: Supplies excitation voltage and ADC reference for signal-conditioning ASICs. Use Value: 100mV dropout enables operation from 2.6V loop supply headroom, extending usable loop voltage range by 200mV. |
| Medical Wearables | Energy Metering ICs |
Use Scenario: ECG patches with ultra-low-power microcontrollers and analog front-ends. IC Role / Device Role / Timing Role: Reference source for low-noise instrumentation amplifiers and delta-sigma ADCs. Use Value: 35μA quiescent current contributes <0.1% to system standby power, enabling multi-week battery life. |
Use Scenario: Polyphase electricity meters requiring metrology-grade voltage references for revenue-grade accuracy. IC Role / Device Role / Timing Role: Primary reference for 24-bit sigma-delta ADCs measuring grid voltage/current harmonics. Use Value: 130ppm temperature hysteresis and 50ppm/1000h long-term stability meet IEC 62053-21 Class 0.2 requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF3025AIDBZR | 2.5V, 0.2% initial accuracy, 50ppm/°C TC, 50μA IQ, SOT23-3 | Higher TC and quiescent current reduce accuracy in wide-temperature or battery-critical designs | Select MAX6025AEUR+T when <15ppm/°C TC and sub-40μA IQ are mandatory |
| ADR3425ARJZ-R7 | 2.5V, 0.1% initial accuracy, 10ppm/°C TC, 120μA IQ, SOT23-5 | Lower TC and tighter initial accuracy but 3.4× higher supply current and 2-pin larger package | Select MAX6025AEUR+T when board area and battery life outweigh need for 0.1% initial tolerance |
Compared with REF3025AIDBZR and ADR3425ARJZ-R7, the MAX6025AEUR+T delivers superior temperature stability and ultra-low quiescent current in the smallest SOT23-3 footprint-critical for wearables and handheld test equipment where thermal drift and runtime dominate design constraints.
Availability
MAX6025AEUR+T is available at Aetrix Electronics and suitable for portable instrumentation, industrial sensor transmitters, medical wearables, and energy metering ICs requiring stable component supply with guaranteed long-term availability.
Supply support for MAX6025AEUR+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 MAX6025AEUR+T belongs to the MAX60xx family of precision low-dropout voltage references designed specifically for battery-operated, space-constrained systems demanding metrology-grade accuracy and ultra-low power.
FAQ
What is the maximum load current the MAX6025AEUR+T can source or sink?
The MAX6025AEUR+T can source or sink up to ±500μA while maintaining specified output voltage accuracy and regulation. At 500μA load, dropout voltage is guaranteed ≤200mV, and load regulation is 0.14μV/μA for sourcing-ensuring <70μV total shift across full load range. This capability eliminates need for external buffer amplifiers in most precision analog circuits.
Does the MAX6025AEUR+T require an external output capacitor for stability?
No, the MAX6025AEUR+T is internally compensated and stable with output capacitance from 0 to 2.2nF. Unlike many voltage references, it does not require an external capacitor for phase margin or frequency stability. This simplifies layout and saves PCB area-especially valuable in SOT23-3 designs where board space is at a premium.
What is the minimum input voltage required for the MAX6025AEUR+T to regulate properly?
The MAX6025AEUR+T requires a minimum input voltage of VOUT + 0.2V = 2.7V to maintain regulation at full load. The absolute maximum input is 12.6V. Within this range, supply current varies by only 0.8μA per volt-making it highly efficient across varying battery voltages in portable systems.
How does the MAX6025AEUR+T compare to shunt-mode voltage references in terms of power efficiency?
Unlike shunt-mode references that waste current through a series resistor, the MAX6025AEUR+T's series-mode architecture draws only 35μA quiescent current independent of load. Its supply current varies just 0.8μA/V with input voltage-reducing wasted power in battery systems and eliminating resistor heat dissipation and layout sensitivity inherent to shunt designs.
Is the MAX6025AEUR+T suitable for use with high-resolution ADCs like 24-bit sigma-delta converters?
Yes, the MAX6025AEUR+T is specifically suited for 24-bit sigma-delta ADCs. Its 0.2% initial accuracy, <15ppm/°C temperature coefficient, 130ppm temperature hysteresis, and 50ppm/1000h long-term stability meet metrology-grade requirements. Low 125μVRMS (10Hz–10kHz) noise ensures minimal quantization uncertainty in precision measurement systems.
MAX6025AEUR+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):
- 2.5V
- Voltage - Output (Max):
- -
- Current - Output:
- 500 µA
- Tolerance:
- ±0.2%
- Temperature Coefficient:
- 20ppm/°C
- Noise - 0.1Hz to 10Hz:
- 50µVp-p
- Noise - 10Hz to 10kHz:
- 125µVrms
- Voltage - Input:
- 2.7V ~ 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
MAX6025AEUR+T FAQ
1.How can I place an order for MAX6025AEUR+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6025AEUR+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 MAX6025AEUR+T reliable?
The price and inventory of MAX6025AEUR+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6025AEUR+T is usually 5 days.
3.What payment methods are accepted for MAX6025AEUR+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6025AEUR+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6025AEUR+T?
MAX6025AEUR+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6025AEUR+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 MAX6025AEUR+T?
For technical support, including MAX6025AEUR+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6025AEUR+T requirements.
6.How does Aetrix verify that MAX6025AEUR+T is sourced from the original manufacturer or authorized distributors?
All MAX6025AEUR+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 MAX6025AEUR+T meets industry standards.
7.What is the process for return or replacement of MAX6025AEUR+T?
All MAX6025AEUR+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6025AEUR+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 MAX6025AEUR+T part is unused and in its original packaging.
Return procedure for MAX6025AEUR+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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