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Analog Devices Inc./Maxim Integrated MAX6034AEXR30+T
- Part No.:
- MAX6034AEXR30+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6034AEXR30+T.pdf
- Description:
- IC VREF SERIES 0.2% SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:7,761
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Product details
Overview
MAX6034AEXR30+T from Maxim Integrated is a precision, micropower, low-dropout series voltage reference delivering a stable 3.000V output with ±0.2% initial accuracy, 30ppm/°C max temperature coefficient, and 200mV max dropout at 1mA load - designed for high-accuracy analog signal chains in space-constrained, battery-powered systems.
For engineers reviewing the MAX6034AEXR30+T datasheet, MAX6034AEXR30+T pinout, MAX6034AEXR30+T application, or MAX6034AEXR30+T equivalent, this page delivers verified specifications, SC70-3 package details, real-world application context, and validated alternative options for precision voltage reference selection in data acquisition, industrial control, and portable instrumentation.
Technical Context
The MAX6034AEXR30+T is a bandgap-based series-mode voltage reference using proprietary curvature-correction circuitry and laser-trimmed thin-film resistors to achieve tight initial accuracy and ultra-low drift. It operates over –40°C to +85°C and requires no external compensation capacitor.
Its supply current remains highly stable (95–125µA typical) across input voltages from 3.2V to 5.5V, varying by only ≤16µA/V, and supports bidirectional load current: sourcing up to 1mA and sinking up to 200µA while maintaining regulation within 0.2% of nominal output.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.000V ±0.2% (±6mV) at +25°C - ensures ADC/DAC reference accuracy within 1 LSB for 12-bit systems over full temp range. |
| Temp Coefficient | ≤30ppm/°C (max) - limits output drift to <2.4mV over –40°C to +85°C, critical for precision sensor front-ends. |
| Dropout Voltage | ≤200mV at 1mA load - enables operation from 3.2V supply in 3.3V systems with margin for battery discharge. |
| Supply Current | 95–125µA (typical), ≤16µA/V variation - ultra-low, supply-independent quiescent draw extends battery life in portable devices. |
| Load Capability | Sources 1mA / sinks 200µA - sufficient to drive SAR ADC references and op-amp bias networks without buffering. |
| Capacitive Load | Stable with 0–1µF - eliminates need for output capacitor, saving PCB area in miniaturized designs. |
| Noise (0.1–10Hz) | 66µVP-P - low enough to avoid degrading ENOB in 16-bit data acquisition systems. |
Pinout & Package
MAX6034AEXR30+T is housed in a miniature 3-pin SC70 surface-mount package (2.0mm × 2.1mm × 0.9mm), optimized for high-density PCB layouts and reflow-compatible assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN | Supply Voltage Input | Accepts 3.2V to 5.5V input; internal series regulation requires ≥200mV headroom above VOUT. |
| 2 - OUT | Reference Voltage Output | Provides stable 3.000V ±0.2% output; directly interfaces with ADC REF+, DAC VREF, or op-amp precision bias nodes. |
| 3 - GND | Ground Reference | Low-impedance return path; must be connected to clean analog ground to maintain accuracy and noise performance. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small SC70-3 package | 2.0mm × 2.1mm footprint - reduces board area by >50% vs. SOT23-3, enabling wearables and handheld medical sensors. |
| No external capacitor required | Fully internally compensated - eliminates BOM cost, placement error risk, and layout sensitivity in high-volume production. |
| Supply-current independence | ΔIIN/ΔVIN ≤16µA/V - prevents reference error coupling from noisy or varying supply rails in mixed-signal systems. |
| Low dropout at full load | 200mV @ 1mA - supports operation from single-cell Li-ion (3.0–3.6V) or regulated 3.3V rails with safety margin. |
| Extended temperature range | –40°C to +85°C operation - qualified for industrial automation, automotive cabin electronics, and outdoor instrumentation. |
Applications
| Portable Data Loggers | Industrial Sensor Transmitters |
|---|---|
Use Scenario: Battery-powered environmental monitors logging temperature, humidity, and gas concentration with 16-bit sigma-delta ADCs. IC Role / Device Role / Timing Role: Primary voltage reference for ADC conversion and sensor excitation circuitry. Use Value: 3.000V output matches common 3.3V system rails; ±0.2% accuracy and 30ppm/°C TC ensure <0.02% total error over field operating range. |
Use Scenario: 4–20mA loop-powered pressure and flow transmitters deployed in factory-floor PLC I/O modules. IC Role / Device Role / Timing Role: Stable excitation source for bridge sensors and reference for current-loop DACs. Use Value: 200µA sink capability enables direct interface with current-output DACs; SC70 size fits tight 24mm DIN-rail module footprints. |
| Medical Wearables | Test & Measurement Front-Ends |
Use Scenario: ECG/PPG patch devices requiring ultra-low power, sub-10µV noise, and long battery runtime. IC Role / Device Role / Timing Role: Low-noise reference for analog front-end gain stages and ADC sampling. Use Value: 66µVP-P (0.1–10Hz) noise and 95µA supply current minimize thermal noise and extend coin-cell life beyond 12 months. |
Use Scenario: Portable multimeters and handheld oscilloscopes needing calibrated DC voltage references traceable to 3.000V standard. IC Role / Device Role / Timing Role: Precision calibration reference for auto-ranging DC voltage measurement paths. Use Value: Laser-trimmed thin-film resistors and curvature correction deliver metrology-grade stability (<100ppm/1000hr long-term drift). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR3430ARJZ-R7 | 3.0V output, ±0.1% initial accuracy, 10ppm/°C TC, 4.5µA typical supply current - lower drift but higher quiescent current than MAX6034AEXR30+T. | Preferred where ultra-low TC dominates over power budget; not suitable for <100µA systems. | Select ADR3430ARJZ-R7 when TC <15ppm/°C is mandatory and supply current >4µA is acceptable. |
| REF3330AIDBVR | 3.0V output, ±0.2% initial accuracy, 50ppm/°C TC, 3.9µA supply current - lower power but looser TC than MAX6034AEXR30+T. | Better for ultra-low-power IoT sensors where 50ppm/°C drift is tolerable over limited temperature spans. | Select REF3330AIDBVR only if system operates <40°C ambient and battery life >5 years is critical. |
Compared with ADR3430ARJZ-R7 and REF3330AIDBVR, the MAX6034AEXR30+T uniquely balances ±0.2% accuracy, 30ppm/°C TC, and <125µA supply current in an SC70 package - making it optimal for battery-powered industrial and medical instruments requiring both precision and efficiency.
Availability
MAX6034AEXR30+T is available at Aetrix Electronics and suitable for portable instrumentation, industrial sensor transmitters, and medical wearables requiring stable component supply, long-lifecycle support, and guaranteed traceability.
Supply support for MAX6034AEXR30+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
Maxim Integrated (now part of Analog Devices) is a semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and consumer applications.
The MAX6034 family was engineered for precision, low-power, space-constrained voltage reference needs in battery-operated and high-accuracy measurement systems - emphasizing micropower operation, SC70 integration, and robust thermal performance.
FAQ
What is the maximum input voltage for MAX6034AEXR30+T?
The MAX6034AEXR30+T supports an absolute maximum input voltage of +6.0V referenced to GND. Its operational input range is specified from (VOUT + 200mV) = 3.2V up to 5.5V. Exceeding 6.0V risks permanent damage per Absolute Maximum Ratings; sustained operation above 5.5V violates guaranteed specifications and may degrade long-term stability.
Does MAX6034AEXR30+T require an external output capacitor?
No, the MAX6034AEXR30+T is internally compensated and stable with 0–1µF capacitive load - including no output capacitor. This eliminates BOM cost and layout dependency. An optional 1µF ceramic capacitor may improve transient response under large load steps but is never required for stability, unlike many competing references.
What is the dropout voltage specification for MAX6034AEXR30+T at 1mA load?
The MAX6034AEXR30+T has a maximum dropout voltage of 200mV at 1mA sourcing load, defined as the minimum (VIN – VOUT) differential needed to maintain VOUT within 0.2% of its nominal value. At room temperature and 1mA, typical dropout is 70mV - enabling reliable operation from 3.2V supplies in 3.3V systems.
Can MAX6034AEXR30+T sink current, and how much?
Yes, the MAX6034AEXR30+T can sink up to 200µA while maintaining regulation. This capability allows direct interfacing with current-output DACs, op-amp summing nodes, or pull-down circuits without additional active components - a key differentiator from shunt-mode references that cannot sink current.
Is MAX6034AEXR30+T pin-compatible with other MAX6034 variants?
Yes, all MAX6034 variants - including MAX6034AEXR21+T, MAX6034AEXR25+T, MAX6034AEXR30+T, MAX6034AEXR33+T, and MAX6034AEXR41+T - share identical SC70-3 pinout (IN, OUT, GND) and package dimensions. Only the output voltage and top-mark code differ; PCB layout is fully reusable across the family.
MAX6034AEXR30+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- SC-70, SOT-323
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Current - Output:
- 1 mA
- Tolerance:
- ±0.2%
- Temperature Coefficient:
- 30ppm/°C
- Noise - 0.1Hz to 10Hz:
- 66µVp-p
- Noise - 10Hz to 10kHz:
- 80µVrms
- Voltage - Input:
- 3.2V ~ 5.5V
- Current - Supply:
- 125µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
MAX6034AEXR30+T FAQ
1.How can I place an order for MAX6034AEXR30+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6034AEXR30+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 MAX6034AEXR30+T reliable?
The price and inventory of MAX6034AEXR30+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6034AEXR30+T is usually 5 days.
3.What payment methods are accepted for MAX6034AEXR30+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6034AEXR30+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6034AEXR30+T?
MAX6034AEXR30+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6034AEXR30+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 MAX6034AEXR30+T?
For technical support, including MAX6034AEXR30+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6034AEXR30+T requirements.
6.How does Aetrix verify that MAX6034AEXR30+T is sourced from the original manufacturer or authorized distributors?
All MAX6034AEXR30+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 MAX6034AEXR30+T meets industry standards.
7.What is the process for return or replacement of MAX6034AEXR30+T?
All MAX6034AEXR30+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6034AEXR30+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 MAX6034AEXR30+T part is unused and in its original packaging.
Return procedure for MAX6034AEXR30+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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