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Analog Devices Inc./Maxim Integrated MAX6034AEXR33+T
- Part No.:
- MAX6034AEXR33+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6034AEXR33+T.pdf
- Description:
- IC VREF SERIES 3.3V SC70
- Quantity:
- Payment:
- Shipping:
Inventory:6,696
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Product details
Overview
MAX6034AEXR33+T from Maxim Integrated is a precision, micropower, low-dropout series voltage reference delivering a stable 3.300V 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 MAX6034AEXR33+T datasheet, MAX6034AEXR33+T pinout, MAX6034AEXR33+T application, or MAX6034AEXR33+T equivalent, this page delivers verified specifications, SC70-3 package details, real-world application context for data-acquisition and industrial control, and two validated alternative parts with functional trade-offs.
Technical Context
The MAX6034AEXR33+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 across -40°C to +85°C without external compensation.
Its supply current remains stable (95–125µA typical) over input voltages from 3.5V to 5.5V, varying by ≤16µA/V, and it supports capacitive loads up to 1µF while maintaining stability - eliminating need for output bypass capacitors in many designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.300V ±0.2% (±6.6mV) at +25°C - ensures ADC/DAC reference accuracy within 1 LSB for 12-bit systems over full temp range. |
| Temp Coefficient | ≤30ppm/°C - limits output drift to ≤2.5mV over -40°C to +85°C, critical for precision sensor front-ends. |
| Dropout Voltage | ≤200mV at 1mA load - enables operation from 3.5V supply in 3.3V systems, preserving headroom for low-voltage microcontrollers. |
| Supply Current | 95–125µA (typ), ≤16µA/V variation - ultra-low and supply-independent draw extends battery life in portable instrumentation. |
| Load Drive | Sources 1mA / sinks 200µA - sufficient to drive SAR ADC references and op-amp bias networks without buffering. |
| Noise (0.1–10Hz) | 73µVP-P - low flicker noise preserves SNR in high-resolution data acquisition paths. |
| Capacitive Load Stability | Stable with 0–1µF - allows direct connection to noisy digital loads or large decoupling caps without oscillation risk. |
Pinout & Package
MAX6034AEXR33+T is housed in a miniature 3-pin SC70 surface-mount package (2.0mm × 2.1mm × 0.9mm), optimized for PCB area-constrained applications including handheld medical devices and IoT sensor nodes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN | Supply Voltage Input | Accepts 3.5V to 5.5V input; requires no external series resistor - unlike shunt references, simplifies power rail design. |
| 2 - OUT | Reference Voltage Output | Provides regulated 3.300V output; internally compensated - no external capacitor needed unless transient response enhancement is required. |
| 3 - GND | Ground Reference | Low-impedance return path; must be connected directly to system ground plane to minimize noise coupling into reference output. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small SC70-3 package | 2.0mm × 2.1mm footprint saves >60% board area vs. SOT23-3, enabling dense mixed-signal layouts. |
| No output capacitor required | Eliminates BOM cost and placement overhead while maintaining stability - reduces design iteration cycles. |
| Supply-current independence | Variation ≤16µA/V over 3.5–5.5V input - removes supply regulation dependency, easing LDO selection. |
| Low dropout (200mV @ 1mA) | Enables direct use from single-cell Li-ion (3.0–4.2V) or regulated 3.3V rails without additional step-down stages. |
| 100ppm temperature hysteresis | Ensures repeatable output after thermal cycling - essential for calibration-critical test equipment and metrology tools. |
Applications
| Hand-Held Test Equipment | Data-Acquisition Systems |
|---|---|
Use Scenario: Portable multimeter measuring mV-level sensor outputs with 16-bit resolution. IC Role / Device Role / Timing Role: Primary voltage reference for SAR ADC and analog front-end gain calibration. Use Value: ±0.2% initial accuracy and 30ppm/°C drift ensure measurement repeatability across field operating temperatures without recalibration. |
Use Scenario: Industrial PLC module digitizing 4–20mA current-loop signals with isolation. IC Role / Device Role / Timing Role: Stable 3.3V reference for isolated sigma-delta ADC and DAC feedback loops. Use Value: 1µF capacitive-load tolerance allows direct connection to isolated DC-DC converter outputs, reducing EMI filtering complexity. |
| Battery-Operated Medical Sensors | Hard-Disk Drive Servo Control |
Use Scenario: Wearable ECG monitor powered by coin-cell battery with 10-year shelf life target. IC Role / Device Role / Timing Role: Low-power reference for analog signal conditioning and ADC reference in ultra-low-quiescent subsystems. Use Value: 95µA typical supply current and no external capacitor reduce total system standby power by >15µA vs. legacy references. |
Use Scenario: HDD voice-coil motor (VCM) driver IC requiring precise 3.3V bias for current-sense amplifiers. IC Role / Device Role / Timing Role: High-stability reference for closed-loop current sensing in high-speed actuator positioning. Use Value: 200mV dropout and 1mA sourcing capability enable direct integration into VCM driver's internal LDO domain without efficiency penalty. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR3433ARJZ-R7 | Initial accuracy ±0.1%, higher 12ppm/°C typical TC, but 135µA supply current and requires 100nF output cap for stability. | Better accuracy for metrology-grade instruments; less suitable for ultra-low-power or capacitor-free designs. | Select when <0.1% initial error is mandatory and board space permits output capacitor. |
| REF3033AIDBZR | ±0.2% accuracy, 50ppm/°C max TC, 40µA supply current, but only 10mA sink capability and unstable >10nF load capacitance. | Lower power for always-on monitoring nodes; unsuitable for driving ADCs with >10nF input capacitance. | Select when quiescent current is primary constraint and load is purely resistive or very low capacitance. |
Compared with ADR3433ARJZ-R7 and REF3033AIDBZR, the MAX6034AEXR33+T uniquely balances ultra-low supply current, capacitor-free stability, and 30ppm/°C drift - making it optimal for compact, battery-powered data loggers where layout area and thermal drift both impact system-level accuracy.
Availability
MAX6034AEXR33+T is available at Aetrix Electronics and suitable for hand-held test equipment, industrial data-acquisition modules, and battery-operated medical sensors requiring stable component supply with guaranteed long-term continuity.
Supply support for MAX6034AEXR33+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 designed specifically for precision, low-power, space-constrained voltage reference needs in portable instrumentation, sensor interfaces, and battery-backed systems - emphasizing micropower operation without sacrificing accuracy or stability.
FAQ
What is the maximum input voltage rating for MAX6034AEXR33+T?
The absolute maximum input voltage for MAX6034AEXR33+T is +6.0V referenced to GND. However, the recommended operating range is 3.5V to 5.5V - derived from the minimum dropout requirement (VOUT + 200mV). Exceeding 5.5V may increase power dissipation beyond safe limits in the SC70 package, especially at elevated ambient temperatures.
Does MAX6034AEXR33+T require an external output capacitor?
No, MAX6034AEXR33+T is internally compensated and stable with 0–1µF output capacitance - no external capacitor is required for stability. An optional 100nF ceramic capacitor may be added to improve transient response in high-dynamic-load applications, but it is not necessary for basic operation or noise reduction in most designs.
Can MAX6034AEXR33+T sink current, and how much?
Yes, MAX6034AEXR33+T can sink up to 200µA while maintaining output regulation. This capability supports active pull-down in precision comparator circuits or biasing of current-sink loads. The load regulation spec confirms ≤8.6mV change over 0–200µA sink current, ensuring predictable behavior in bidirectional reference configurations.
What is the turn-on settling time for MAX6034AEXR33+T?
MAX6034AEXR33+T settles to within 0.1% of final value in 200µs (typical) with a 50pF load capacitance. This value increases under worst-case conditions - e.g., at minimum input voltage (3.5V) and maximum load (1mA) - where settling may extend to ~1.25ms. For fast wake-up systems, this timing must be accounted for in power sequencing.
How does the supply current of MAX6034AEXR33+T vary with temperature?
MAX6034AEXR33+T draws 95–125µA over -40°C to +85°C, with minimal variation: typical supply current is ~105µA at +25°C, rising to ~110µA at +85°C and dropping to ~98µA at -40°C. This flat thermal profile simplifies power budgeting in wide-temperature industrial deployments without requiring derating.
MAX6034AEXR33+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):
- 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- -
- Tolerance:
- ±0.2%
- Temperature Coefficient:
- 30ppm/°C
- Noise - 0.1Hz to 10Hz:
- 73µVp-p
- Noise - 10Hz to 10kHz:
- 88µVrms
- Voltage - Input:
- 3.5V ~ 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
MAX6034AEXR33+T FAQ
1.How can I place an order for MAX6034AEXR33+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6034AEXR33+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 MAX6034AEXR33+T reliable?
The price and inventory of MAX6034AEXR33+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6034AEXR33+T is usually 5 days.
3.What payment methods are accepted for MAX6034AEXR33+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6034AEXR33+T transactions.
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4.How is shipping managed for MAX6034AEXR33+T?
MAX6034AEXR33+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6034AEXR33+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 MAX6034AEXR33+T?
For technical support, including MAX6034AEXR33+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6034AEXR33+T requirements.
6.How does Aetrix verify that MAX6034AEXR33+T is sourced from the original manufacturer or authorized distributors?
All MAX6034AEXR33+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 MAX6034AEXR33+T meets industry standards.
7.What is the process for return or replacement of MAX6034AEXR33+T?
All MAX6034AEXR33+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6034AEXR33+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 MAX6034AEXR33+T part is unused and in its original packaging.
Return procedure for MAX6034AEXR33+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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