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Analog Devices Inc./Maxim Integrated MAX6025BEUR-T
- Part No.:
- MAX6025BEUR-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MAX6025BEUR-T.pdf
- Description:
- IC VREF SERIES 0.4% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,599
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Product details
Overview
MAX6025BEUR-T from Analog Devices is a precision series-mode voltage reference IC in SOT23-3 package, delivering 2.500V ±0.4% initial accuracy with ≤25ppm/°C temperature coefficient over –40°C to +85°C. It draws only 35μA quiescent current, supports ±500μA load drive, and maintains stability with up to 2.2nF capacitive load-ideal for high-accuracy ADC biasing in portable instrumentation.
For engineers reviewing the MAX6025BEUR-T datasheet, MAX6025BEUR-T pinout, MAX6025BEUR-T application, or MAX6025BEUR-T equivalent, key selection criteria include its 100mV dropout at 500μA, supply-independent current (0.8μA/V variation), and guaranteed operation from (VOUT + 200mV) to 12.6V input range.
Technical Context
This bandgap-based series reference uses proprietary curvature-correction circuitry and laser-trimmed thin-film resistors to achieve low drift and high initial accuracy. Its internal compensation eliminates need for external capacitors while supporting full 0–2.2nF load capacitance range without oscillation.
The device operates as a three-terminal active regulator: IN supplies power, OUT delivers stable 2.500V, and GND establishes reference ground. It sources/sinks load current directly without external biasing resistors-unlike shunt-mode references-and exhibits <0.2% line regulation error across its specified input voltage window.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.500V ±0.4% at +25°C - ensures precise scaling for 12-bit+ SAR ADCs without calibration |
| Temp Coefficient | ≤25ppm/°C (–40°C to +85°C) - limits full-range drift to <±0.0625mV over industrial temp range |
| Quiescent Current | 35μA max - enables >1-year battery life in coin-cell-powered sensor nodes |
| Dropout Voltage | 100mV at 500μA load - allows operation from 2.6V supply in 2.7V nominal systems |
| Load Regulation | 0.14μV/μA sourcing - contributes <0.07mV error across full 500μA load swing |
| Capacitive Stability | 0–2.2nF - permits direct connection to ADC sample capacitors without added components |
| Supply Range | VOUT + 0.2V to 12.6V - supports wide-input designs including USB-powered equipment |
Pinout & Package
SOT23-3 surface-mount package with 1.00mm maximum height, JEDEC TO-236AB-compliant footprint, and RoHS-compliant lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Supply Input | Accepts input from 2.7V to 12.6V; must exceed VOUT by ≥200mV for regulation |
| 2 (OUT) | Reference Output | Delivers stable 2.500V; connects directly to ADC REF+, DAC VREF, or op-amp feedback |
| 3 (GND) | Ground Reference | Low-impedance return path; requires dedicated analog ground plane for <15ppm stability |
Key Features
| Feature | Design Value |
|---|---|
| Laser-trimmed thin-film resistors | Enables 0.4% initial accuracy without post-package calibration |
| Proprietary curvature correction | Reduces parabolic temperature drift to ≤25ppm/°C over full industrial range |
| No external compensation required | Eliminates 1–10nF capacitor and associated board area in space-constrained layouts |
| Supply-current independence | 0.8μA/V VIN variation prevents output error from supply ripple in noisy environments |
| ±500μA bidirectional load drive | Directly interfaces with SAR ADC input leakage and op-amp bias currents |
Applications
| Portable Data Loggers | Industrial Sensor Transmitters |
|---|---|
Use Scenario: Battery-powered environmental monitors sampling temperature/humidity at 1Hz with 16-bit ADC. IC Role / Device Role / Timing Role: Provides stable 2.500V reference for ADC conversion, rejecting supply sag during RF transmission bursts. Use Value: 35μA quiescent current extends CR2032 battery life beyond 2 years; 25ppm/°C TC ensures <0.05% measurement error across –25°C to +70°C field operation. | Use Scenario: 4–20mA loop-powered pressure transmitter with HART modulation. IC Role / Device Role / Timing Role: Supplies precision reference for sigma-delta ADC and DAC in analog front-end. Use Value: 100mV dropout enables operation from 2.6V rail derived from 4mA loop; 2.2nF capacitive stability avoids extra decoupling on crowded PCB. |
| Medical Point-of-Care Devices | Test & Measurement Equipment |
Use Scenario: Handheld blood glucose meter requiring ISO 15197:2013 accuracy compliance. IC Role / Device Role / Timing Role: Sets reference voltage for electrochemical sensor signal conditioning amplifier. Use Value: 0.4% initial accuracy and 130ppm hysteresis meet Class A accuracy requirements; SOT23-3 footprint simplifies automated assembly. | Use Scenario: Benchtop multimeter with auto-ranging 22-bit delta-sigma ADC. IC Role / Device Role / Timing Role: Primary reference for internal calibration and DMM reference ladder. Use Value: 0.14μV/μA load regulation minimizes gain error during autoranging; long-term stability of 50ppm/1000h reduces recalibration frequency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR3425ARJZ-R7 | 2.5V output, 10ppm/°C max TC, 30μA IQ, but requires ≥1.5V headroom (dropout ~150mV @ 500μA) | Higher accuracy TC suits metrology-grade instruments; higher dropout limits ultra-low-voltage use | Select when <10ppm/°C drift is mandatory and supply margin exceeds 1.5V |
| REF3025AIDBZR | 2.5V output, 50ppm/°C max TC, 40μA IQ, 175mV dropout, stable to 10nF | Looser TC acceptable for consumer-grade devices; higher dropout restricts sub-2.7V operation | Select when cost sensitivity outweighs TC performance and layout allows larger capacitor |
Compared with ADR3425ARJZ-R7 and REF3025AIDBZR, the MAX6025BEUR-T offers the lowest combination of dropout voltage (100mV) and industrial-temperature TC (25ppm/°C) in SOT23-3, making it optimal for battery-powered precision systems where supply headroom and thermal stability are both constrained.
Availability
MAX6025BEUR-T is available at Aetrix Electronics and suitable for portable data loggers, industrial sensor transmitters, medical point-of-care devices, test & measurement equipment, and battery-operated instrumentation requiring stable component supply and long-term calibration integrity.
Supply support for MAX6025BEUR-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 MAX6025BEUR-T belongs to the MAX60xx family of precision low-power voltage references, designed specifically for battery-operated and space-constrained systems demanding high accuracy, ultra-low quiescent current, and minimal external components.
FAQ
What is the output voltage tolerance of the MAX6025BEUR-T at +25°C?
The MAX6025BEUR-T has an output voltage of 2.500V with a tolerance of ±0.4% (2.490V to 2.510V) at +25°C, corresponding to the 'B' grade accuracy specification per the MAX6025 datasheet Electrical Characteristics table.
Does the MAX6025BEUR-T require an external output capacitor for stability?
No, the MAX6025BEUR-T is internally compensated and remains stable with output capacitance ranging from 0 to 2.2nF. An external capacitor is optional and used only to improve transient response-not required for basic stability.
What is the minimum input voltage required for regulation with the MAX6025BEUR-T?
The MAX6025BEUR-T requires a minimum input voltage of VOUT + 0.2V = 2.7V to maintain regulation at full load. Its absolute minimum supply is specified as 2.7V, with maximum input voltage rated to 12.6V.
Can the MAX6025BEUR-T sink and source load current simultaneously?
No-the MAX6025BEUR-T operates in series mode and can either source up to +500μA (to a lighter load) or sink up to –500μA (from a heavier load), but not both simultaneously. Its output stage is a single bipolar transistor configured for unidirectional current flow per operating condition.
How does the supply current of the MAX6025BEUR-T vary with input voltage?
The MAX6025BEUR-T exhibits a supply current variation of only 0.8μA/V across its input range (2.7V to 12.6V), meaning total change is <8μA over 10V span-enabling predictable power budgeting in variable-supply systems.
MAX6025BEUR-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):
- 2.5V
- Voltage - Output (Max):
- -
- Current - Output:
- 500 µA
- Tolerance:
- ±0.4%
- Temperature Coefficient:
- 30ppm/°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
MAX6025BEUR-T FAQ
1.How can I place an order for MAX6025BEUR-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6025BEUR-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 MAX6025BEUR-T reliable?
The price and inventory of MAX6025BEUR-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6025BEUR-T is usually 5 days.
3.What payment methods are accepted for MAX6025BEUR-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6025BEUR-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6025BEUR-T?
MAX6025BEUR-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6025BEUR-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 MAX6025BEUR-T?
For technical support, including MAX6025BEUR-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6025BEUR-T requirements.
6.How does Aetrix verify that MAX6025BEUR-T is sourced from the original manufacturer or authorized distributors?
All MAX6025BEUR-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 MAX6025BEUR-T meets industry standards.
7.What is the process for return or replacement of MAX6025BEUR-T?
All MAX6025BEUR-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6025BEUR-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 MAX6025BEUR-T part is unused and in its original packaging.
Return procedure for MAX6025BEUR-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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