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Analog Devices Inc./Maxim Integrated MAX6035AAUR50-T
- Part No.:
- MAX6035AAUR50-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MAX6035AAUR50-T.pdf
- Description:
- VOLTAGE REFERENCE
- Quantity:
- Payment:
- Shipping:
Inventory:16,916
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Product details
Overview
MAX6035AAUR50-T from Maxim Integrated is a high-voltage, precision micropower series voltage reference delivering a stable 5.0V output with ±0.2% initial accuracy and 25ppm/°C max temperature coefficient over –40°C to +125°C. It draws only 73µA quiescent current, sources up to 10mA, sinks 2mA, and operates from 6.9V to 33V supply-ideal for Li+ battery chargers and 12-bit data converters in harsh industrial environments.
For engineers reviewing the MAX6035AAUR50-T datasheet, MAX6035AAUR50-T pinout, MAX6035AAUR50-T application, or MAX6035AAUR50-T equivalent, key selection criteria include ultra-low supply current independence from VIN, no external capacitor requirement, capacitive-load stability up to 5µF, and SOT23-3 footprint compatibility with space-constrained portable instrumentation and automotive sensor modules.
Technical Context
The MAX6035AAUR50-T employs a proprietary curvature-correction circuit and laser-trimmed thin-film resistors to achieve 25ppm/°C tempco (–40°C to +125°C) and ±0.2% initial accuracy. Its internal compensation eliminates need for external stabilization components while maintaining stability with 0–5µF output capacitance.
As a three-terminal series-mode reference, it delivers supply-current independence (ΔIIN/ΔVIN ≤ 0.7µA/V), unlike shunt references requiring external biasing. Dropout voltage is 1.9V at 10µA and 2.25V at 10mA load, enabling operation down to 6.9V input across full temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.000V ±0.2% (±10mV) at +25°C - ensures 12-bit ADC accuracy without calibration |
| Tempco | 25ppm/°C max (–40°C to +125°C) - supports 16-bit converter stability over extended industrial range |
| Quiescent Current | 73µA typical, 95µA max - enables >1-year battery life in 10µA-sleep systems |
| Supply Range | 6.9V to 33V - compatible with 12V/24V industrial rails and unregulated battery inputs |
| Load Drive | Sources 10mA / sinks 2mA - drives ADC reference inputs and op-amp bias networks directly |
| Noise (0.1–10Hz) | 68µVP-P - low enough for 16-bit precision measurement front-ends |
| Capacitive Load | Stable with 0–5µF - eliminates need for output capacitor in PCB area–constrained designs |
Pinout & Package
MAX6035AAUR50-T is housed in a 3-pin SOT23-3 package (JEDEC MO-178AA, Maxim pkg code U3-1), with 1.3mm × 0.8mm footprint and 0.95mm height - optimized for automated placement and minimal board area.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input Voltage Supply | Accepts 6.9V–33V; internal regulation rejects ripple up to 72dB at 120Hz |
| 2 (OUT) | Precision Reference Output | 5.0V ±0.2%, low-impedance source/sink node; stable with 5µF capacitive loads |
| 3 (GND) | Analog Ground Reference | Single-point return for reference accuracy; requires low-impedance connection to system AGND |
Key Features
| Feature | Design Value |
|---|---|
| Supply-Independent Quiescent Current | 73µA typical across 6.9–33V input - eliminates power waste vs. shunt references |
| No External Compensation Required | Internally compensated - saves 1–2 mm² PCB area and reduces BOM count |
| High-Voltage Operation | 33V absolute max input - supports direct connection to 24V industrial buses |
| Extended Temperature Range | –40°C to +125°C operation - qualified for under-hood automotive and factory-floor use |
| Low Thermal Hysteresis | 135ppm - maintains repeatability after thermal cycling in field-deployed equipment |
Applications
| 4–20mA Industrial Control Loops | Li+ Battery Chargers |
|---|---|
Use Scenario: Precision current-loop transmitter in process automation with 24V supply and ambient temperatures up to +85°C. IC Role / Device Role / Timing Role: Provides stable 5.0V reference for DAC and current-sense amplifier, enabling ±0.1% loop accuracy. Use Value: 25ppm/°C tempco and 73µA supply current extend calibration interval and reduce self-heating error in sealed enclosures. | Use Scenario: Voltage-reference stage in single-cell Li+ charger IC monitoring battery voltage during CC/CV phases. IC Role / Device Role / Timing Role: Supplies accurate 5.0V reference to charger's ADC and comparator circuits for ±10mV voltage threshold detection. Use Value: Ultra-low 73µA quiescent current minimizes standby drain; 33V input rating allows direct connection to unregulated adapter outputs. |
| 12-Bit A/D and D/A Converters | Digital Multimeters |
Use Scenario: Reference for portable 12-bit SAR ADC in handheld test equipment powered by two AA batteries. IC Role / Device Role / Timing Role: Delivers 5.0V reference with <±10mV total error (initial + tempco) across –10°C to +50°C operating range. Use Value: ±0.2% initial accuracy and 25ppm/°C tempco ensure full-scale linearity without software correction. | Use Scenario: High-stability reference in 4½-digit handheld DMM requiring <0.01% reading accuracy over 8-hour field use. IC Role / Device Role / Timing Role: Supplies 5.0V reference to dual-slope integrator and display driver circuits. Use Value: 135ppm thermal hysteresis and 160ppm/1000hr long-term stability prevent drift-induced zero-error accumulation during multi-hour measurements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5050AIDR | 5.0V output, ±0.05% initial accuracy, 3ppm/°C tempco, SO-8 package, 1.2mA quiescent current | Higher accuracy and lower noise, but 16× higher supply current and larger footprint | Select for metrology-grade systems where accuracy outweighs power/size constraints |
| ADR4550BRZ | 5.0V output, ±0.02% initial accuracy, 3ppm/°C tempco, SO-8 package, 950µA quiescent current | Ultra-low tempco and noise, but incompatible SOT23 footprint and unsuitable for battery operation | Choose when long-term stability (<2ppm/√khr) and sub-ppm tempco are mandatory |
Compared with REF5050AIDR and ADR4550BRZ, the MAX6035AAUR50-T trades absolute precision for ultra-low power (73µA vs. >950µA) and SOT23-3 miniaturization-making it optimal for portable, battery-powered, and space-limited industrial sensors where ±0.2% accuracy suffices.
Availability
MAX6035AAUR50-T is available at Aetrix Electronics and suitable for 4–20mA industrial control loops, Li+ battery chargers, and 12-bit data converters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6035AAUR50-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) designs precision analog and mixed-signal ICs for industrial, automotive, and communications applications.
The MAX6035 family targets high-supply-voltage, micropower reference needs in space-constrained, battery-operated, and wide-temperature industrial systems-replacing legacy REF02/REF43 with superior efficiency and smaller footprint.
FAQ
What is the maximum input voltage rating for MAX6035AAUR50-T?
The MAX6035AAUR50-T has an absolute maximum input voltage of +36V referenced to GND. Its operational supply range is specified from 6.9V to 33V, ensuring reliable function across 12V and 24V industrial rails. Exceeding 36V may cause permanent damage, and operation below 6.9V results in dropout and loss of regulation. The device's 33V upper limit supports direct interface with unregulated wall adapters and battery stacks.
Does MAX6035AAUR50-T require an external output capacitor?
No, the MAX6035AAUR50-T does not require an external output capacitor for stability-it is internally compensated and guaranteed stable with 0–5µF capacitive loads. Adding a capacitor (e.g., 0.1µF ceramic) improves transient response in step-load applications but is optional. This eliminates a common BOM item and saves PCB area, a key advantage in handheld and sensor-module designs where space is critical.
What is the load current capability of MAX6035AAUR50-T?
The MAX6035AAUR50-T can source up to 10mA and sink up to 2mA while maintaining output accuracy within specification. This drive strength supports direct interfacing with ADC reference inputs, op-amp bias networks, and low-power microcontroller VREF pins. Load regulation is 160µV/mA (sourcing) and 300µV/mA (sinking) over –40°C to +125°C, ensuring minimal voltage shift under varying load conditions in precision measurement systems.
How does the temperature coefficient of MAX6035AAUR50-T compare to REF02?
The MAX6035AAUR50-T has a maximum temperature coefficient of 25ppm/°C (–40°C to +125°C), which is significantly lower than the REF02's typical 50ppm/°C and maximum 100ppm/°C. This 2× improvement enables tighter system accuracy over wide temperature swings-critical in automotive and industrial environments. The MAX6035AAUR50-T achieves this via proprietary curvature-correction circuitry and laser-trimmed thin-film resistors, unlike the REF02's older bipolar architecture.
Is MAX6035AAUR50-T RoHS-compliant and lead-free?
Yes, the MAX6035AAUR50-T is RoHS-compliant and lead-free when ordered with the '+' suffix (e.g., MAX6035AAUR50+). The base part number MAX6035AAUR50-T is not lead-free; its packaging uses standard SnPb finish. For new designs requiring RoHS compliance, specify MAX6035AAUR50+-T or MAX6035AAUR50+-both use the same U3-1 SOT23-3 package and identical electrical specifications.
MAX6035AAUR50-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±0.2%
- Temperature Coefficient:
- 30ppm/°C
- Noise - 0.1Hz to 10Hz:
- 68µVp-p
- Noise - 10Hz to 10kHz:
- 48µVrms
- Voltage - Input:
- 6.9V ~ 33V
- Current - Supply:
- 100µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
MAX6035AAUR50-T FAQ
1.How can I place an order for MAX6035AAUR50-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6035AAUR50-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 MAX6035AAUR50-T reliable?
The price and inventory of MAX6035AAUR50-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6035AAUR50-T is usually 5 days.
3.What payment methods are accepted for MAX6035AAUR50-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6035AAUR50-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6035AAUR50-T?
MAX6035AAUR50-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6035AAUR50-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 MAX6035AAUR50-T?
For technical support, including MAX6035AAUR50-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6035AAUR50-T requirements.
6.How does Aetrix verify that MAX6035AAUR50-T is sourced from the original manufacturer or authorized distributors?
All MAX6035AAUR50-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 MAX6035AAUR50-T meets industry standards.
7.What is the process for return or replacement of MAX6035AAUR50-T?
All MAX6035AAUR50-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6035AAUR50-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 MAX6035AAUR50-T part is unused and in its original packaging.
Return procedure for MAX6035AAUR50-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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