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Analog Devices Inc./Maxim Integrated MAX6003EUR-T
- Part No.:
- MAX6003EUR-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MAX6003EUR-T.pdf
- Description:
- IC VREF SERIES 1% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,633
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Product details
Overview
MAX6003EUR-T from Analog Devices is a precision 3.0V series voltage reference in SOT23-3 package, designed for low-power, wide-input-voltage battery-operated systems. It delivers ±0.5% initial accuracy (3.00V ±15mV), 100ppm/°C max temperature coefficient, and 45µA max quiescent current. Its 100mV dropout at 400µA load enables stable operation down to VIN = 3.1V in portable instrumentation and sensor signal chains.
For engineers reviewing the MAX6003EUR-T datasheet, MAX6003EUR-T pinout, MAX6003EUR-T application, or MAX6003EUR-T equivalent, key selection criteria include its micropower supply current independence from VIN, 0.12µV/µA load regulation, stability with 0–2.2nF capacitive loads, and guaranteed performance across –40°C to +85°C.
Technical Context
The MAX6003EUR-T is a bandgap-based series voltage reference with internal compensation-no external capacitor required. It operates as a three-terminal device (IN, OUT, GND), sourcing or sinking up to ±400µA while maintaining output regulation within 0.1% over full temperature and line/load conditions.
Its architecture eliminates external bias resistors typical of shunt references and avoids the higher cost and complexity of traditional series references. Supply current variation is limited to 0.8µA/V across VIN = (VOUT + 0.2V) to 12.6V, enabling predictable power budgeting in energy-constrained designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.000V ±15mV (±0.5% initial accuracy at +25°C) |
| Temp Coefficient | ≤100ppm/°C (output drift ≤300µV over –40°C to +85°C) |
| Quiescent Current | ≤45µA (enables >1-year battery life in µA-level standby systems) |
| Dropout Voltage | 100mV at 400µA load (supports operation with VIN as low as 3.1V) |
| Load Regulation | 0.14–0.90µV/µA (output change <360µV across full ±400µA load range) |
| Line Regulation | 20–220µV/V (output change <2.2mV over VIN = 3.2V to 12.6V) |
| Capacitive Load | Stable with 0–2.2nF (eliminates need for output capacitor in space-critical layouts) |
Pinout & Package
SOT23-3 plastic surface-mount package (2.92mm × 1.3mm × 1.0mm), lead-free and RoHS-compliant. Pin 1 = IN, Pin 2 = OUT, Pin 3 = GND - standard top-view orientation per JEDEC MO-178AB.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Supply Input | Accepts input voltage from (VOUT + 200mV) to 12.6V; powers internal bandgap core and output stage |
| 2 (OUT) | Reference Output | Provides stable 3.000V ±15mV; sources/sinks ±400µA with minimal regulation error |
| 3 (GND) | Analog Ground | Return path for reference output and internal circuitry; must be low-impedance connection to system ground plane |
Key Features
| Feature | Design Value |
|---|---|
| No external compensation capacitor required | Reduces BOM count and PCB area by eliminating mandatory 10nF–100nF ceramic capacitor |
| Supply current virtually independent of VIN | Enables accurate power modeling across wide input ranges (3.2V–12.6V) without derating |
| ±400µA output drive capability | Directly interfaces with ADC reference inputs, op-amp bias networks, and low-current DACs without buffering |
| 0.12µV/µA load regulation | Maintains <0.004% output error under dynamic load shifts common in multiplexed sensor front-ends |
| Stable with CLOAD = 0 to 2.2nF | Supports direct connection to noisy digital ICs or long traces without oscillation risk |
Applications
| Portable Medical Sensors | Industrial Data Loggers |
|---|---|
|
Use Scenario: Battery-powered ECG front-end acquiring microvolt-level biopotentials with 16-bit SAR ADC. IC Role / Device Role / Timing Role: Precision 3.0V reference for ADC VREF input and op-amp bias network. Use Value: 100ppm/°C tempco and 0.12µV/µA load regulation ensure <1 LSB error over temperature and varying sensor channel loading. |
Use Scenario: Remote environmental monitor logging temperature/humidity every 5 minutes using coin-cell battery. IC Role / Device Role / Timing Role: Low-quiescent 3.0V reference powering MCU ADC and analog sensor conditioning. Use Value: 45µA max IQ extends 10-year battery life; 100mV dropout allows operation until battery depletes to 3.1V. |
| Handheld Test Equipment | Automotive Cabin Sensors |
|
Use Scenario: Pocket DMM measuring mV–V range with auto-ranging and LCD backlight control. IC Role / Device Role / Timing Role: Primary reference for dual-slope integrator and calibration offset correction. Use Value: 130ppm hysteresis and 50ppm/1000hrs long-term stability enable factory calibration valid for 2+ years. |
Use Scenario: Occupancy sensor module in vehicle cabin operating from 12V rail via LDO, exposed to –40°C to +85°C. IC Role / Device Role / Timing Role: Stable 3.0V reference for IR proximity detector ADC and wake-up comparator. Use Value: Guaranteed –40°C to +85°C operation with 100ppm/°C max tempco ensures consistent detection threshold across climate zones. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR3430ARJZ-R7 | 3.0V output, 10ppm/°C max tempco, 4.5µA IQ, SOT23-5 package | Lower noise (12µVRMS) and tighter tempco, but requires 5-pin layout and external decoupling | Select when ultra-low drift and noise are critical and board space permits SOT23-5 footprint |
| REF3030AIDBZR | 3.0V output, 50ppm/°C max tempco, 50µA IQ, SOT23-3 package | Nearly identical pinout and footprint, but higher 50ppm/°C tempco and no guaranteed 0–2.2nF stability | Use as drop-in replacement where 50ppm/°C is acceptable and load capacitance is fixed & verified |
Compared with ADR3430ARJZ-R7, MAX6003EUR-T offers lower system cost and smaller footprint but trades off tempco and noise performance; compared with REF3030AIDBZR, it delivers superior temperature stability and broader capacitive-load tolerance at marginally higher quiescent current.
Availability
MAX6003EUR-T is available at Aetrix Electronics and suitable for portable medical sensors, industrial data loggers, handheld test equipment, and automotive cabin sensors requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6003EUR-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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, communications, automotive, and healthcare markets.
The MAX6001–MAX6005 family was engineered for cost-sensitive, battery-powered applications demanding micropower operation, low dropout, and SOT23-3 simplicity-targeting portable instrumentation, sensor nodes, and space-constrained embedded systems.
FAQ
What is the minimum input voltage required for stable operation of the MAX6003EUR-T?
The MAX6003EUR-T requires a minimum input voltage of VOUT + 200mV = 3.2V to maintain regulation. At 400µA load, dropout is specified at 100mV, meaning stable 3.0V output is guaranteed down to VIN = 3.1V. Operation below 3.2V may still function but falls outside guaranteed specifications per the datasheet's VIN range definition.
Does the MAX6003EUR-T require an external output capacitor for stability?
No, the MAX6003EUR-T is internally compensated and stable with capacitive loads from 0 to 2.2nF. An external capacitor is optional and only recommended in applications subject to fast load or supply transients to improve transient response-not for stability assurance.
Can the MAX6003EUR-T both source and sink current, and what are the limits?
Yes, the MAX6003EUR-T can source up to +400µA and sink down to –400µA while maintaining output regulation within specification. This bidirectional capability supports driving ADC reference inputs, biasing op-amps, and interfacing with circuits that pull current from or push current into the reference node.
What is the long-term stability specification for the MAX6003EUR-T?
The MAX6003EUR-T exhibits 50ppm maximum change in output voltage after 1,000 hours of operation at +25°C. This long-term stability metric reflects aging behavior under continuous bias and supports calibration intervals exceeding two years in field-deployed equipment.
How does supply voltage variation affect the quiescent current of the MAX6003EUR-T?
The MAX6003EUR-T quiescent supply current varies by only 0.8µA per volt across its input range (3.2V to 12.6V), resulting in a total variation of ≤7.5µA. This near-constant IQ simplifies power budgeting in systems with fluctuating battery or rail voltages.
MAX6003EUR-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):
- 3V
- Voltage - Output (Max):
- -
- Current - Output:
- 400 µA
- Tolerance:
- ±1%
- Temperature Coefficient:
- 100ppm/°C
- Noise - 0.1Hz to 10Hz:
- 75µVp-p
- Noise - 10Hz to 10kHz:
- 150µVrms
- Voltage - Input:
- 3.2V ~ 12.6V
- Current - Supply:
- 45µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
MAX6003EUR-T FAQ
1.How can I place an order for MAX6003EUR-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6003EUR-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 MAX6003EUR-T reliable?
The price and inventory of MAX6003EUR-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6003EUR-T is usually 5 days.
3.What payment methods are accepted for MAX6003EUR-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6003EUR-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6003EUR-T?
MAX6003EUR-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6003EUR-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 MAX6003EUR-T?
For technical support, including MAX6003EUR-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6003EUR-T requirements.
6.How does Aetrix verify that MAX6003EUR-T is sourced from the original manufacturer or authorized distributors?
All MAX6003EUR-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 MAX6003EUR-T meets industry standards.
7.What is the process for return or replacement of MAX6003EUR-T?
All MAX6003EUR-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6003EUR-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 MAX6003EUR-T part is unused and in its original packaging.
Return procedure for MAX6003EUR-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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