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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:
- IC VREF SERIES 0.2% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:11,673
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Product details
Overview
MAX6035AAUR50+T from Analog Devices 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 typical supply current, sources up to 10mA, sinks 2mA, and operates from 6.9V to 33V input-ideal for Li+ battery chargers and 12-bit data converters in space-constrained industrial systems.
For engineers reviewing the MAX6035AAUR50+T datasheet, MAX6035AAUR50+T pinout, MAX6035AAUR50+T application, or MAX6035AAUR50+T equivalent, key selection criteria include ultra-low quiescent current independence from VIN, no external compensation capacitor requirement, stability with up to 5µF capacitive load, and SOT23-3 package compatibility for high-density PCB layouts.
Technical Context
The MAX6035AAUR50+T is a three-terminal series-mode voltage reference using proprietary curvature-correction circuitry and laser-trimmed thin-film resistors to achieve 25ppm/°C (max) tempco across –40°C to +125°C. Its internal compensation eliminates need for external stabilization capacitors while maintaining stability with capacitive loads up to 5µF.
Unlike shunt references, it draws near-constant 73µA supply current regardless of input voltage (6.9V–33V), with only 0.7µA/V max variation. Dropout voltage is 1.9V at 10µA and 2.25V at 10mA, enabling operation in high-supply-voltage, low-power systems where efficiency and thermal management are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.000V ±0.2% (±10mV) at +25°C - ensures 12-bit ADC/DAC full-scale accuracy without calibration. |
| Tempco (–40°C to +125°C) | 25ppm/°C max - limits drift to ≤1.5mV over full range, meeting 1-LSB error budget for 14-bit systems. |
| Quiescent Current | 73µA typical, 95µA max - enables >10-year battery life in 10µA-average-current portable instruments. |
| Supply Range | 6.9V to 33V - supports direct connection to 12V/24V industrial rails and high-voltage battery stacks. |
| Load Drive | Sources 10mA / sinks 2mA - drives ADC reference inputs, op-amp bias networks, and small DACs directly. |
| Capacitive Load Stability | Stable with 0–5µF - eliminates need for output capacitor, saving board area in wearables and sensor nodes. |
| Noise (0.1–10Hz) | 68µVP-P - low enough for 16-bit precision measurements without additional filtering. |
Pinout & Package
The MAX6035AAUR50+T is housed in a 3-pin SOT23-3 (U3-1) package with gull-wing leads, 1.3mm × 2.9mm footprint, and 1.0mm max height-optimized for automated assembly and thermal performance in compact designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input Voltage Supply | Accepts 6.9V–33V unregulated input; internal regulation delivers precise 5.0V output independent of VIN variation. |
| 2 (OUT) | Precision Reference Output | Low-impedance 5.0V source/sink node; stable with 0–5µF load capacitance and immune to layout-induced oscillation. |
| 3 (GND) | Analog Ground Reference | Single-point return path for reference and load currents; must be routed separately from digital/power ground to preserve accuracy. |
Key Features
| Feature | Design Value |
|---|---|
| Supply-Independent Quiescent Current | 73µA typical, varying <0.7µA/V across 6.9–33V - eliminates wasted current in variable-input systems like solar-powered sensors. |
| No External Compensation Required | Internally compensated for 0–5µF capacitive loads - removes BOM item and layout risk associated with output capacitor selection. |
| High-Voltage Input Capability | Rated for 33V absolute max input - enables direct use after 24V industrial bus filters without pre-regulation. |
| Laser-Trimmed Thin-Film Resistors | Enables ±0.2% initial accuracy and 25ppm/°C tempco - reduces system calibration steps and improves long-term measurement repeatability. |
| Wide Operating Temperature | –40°C to +125°C specified - qualified for under-hood automotive, motor drive feedback, and industrial control environments. |
Applications
| 4–20mA Industrial Loop | Li+ Battery Charger Monitoring |
|---|---|
Use Scenario: Precision current loop transmitter conditioning analog sensor signals for PLC input. IC Role / Device Role / Timing Role: Provides stable 5.0V reference for DAC and op-amp signal conditioning stages. Use Value: 25ppm/°C tempco and ±0.2% accuracy ensure loop current stays within ±0.1% full-scale error across –40°C to +85°C ambient. |
Use Scenario: Accurate cell voltage sensing during CC/CV charging of single-cell Li+ batteries. IC Role / Device Role / Timing Role: Supplies reference for ADC measuring battery terminal voltage and thermistor. Use Value: 73µA quiescent current extends standby time; 33V input rating allows direct connection to charger IC's high-side supply rail. |
| 12-Bit Data Acquisition | Portable Digital Multimeter |
Use Scenario: Reference for SAR ADC in handheld test equipment requiring fast settling and low noise. IC Role / Device Role / Timing Role: Low-noise (68µVP-P) 5.0V reference enabling full 12-bit ENOB without averaging. Use Value: 240µs turn-on time and 5µF capacitive-load stability allow rapid channel switching in multiplexed systems. |
Use Scenario: Core reference in battery-powered DMM with auto-ranging and autoranging ohms function. IC Role / Device Role / Timing Role: Supplies precision 5.0V to dual-slope integrator and display driver circuits. Use Value: No external capacitor saves space in ultra-thin form factor; 135ppm thermal hysteresis prevents offset drift during field temperature cycling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR3450ARJZ-R7 | 5.0V output, ±0.1% initial accuracy, 10ppm/°C tempco, 125µA IQ, SOT23-5 package | Higher accuracy and lower tempco but 70% higher supply current; requires 5-pin layout | Select when 10ppm/°C and ±0.1% are mandatory; avoid if board space or ultra-low IQ is constrained. |
| REF5050AIDR | 5.0V output, ±0.05% initial accuracy, 3ppm/°C tempco, 950µA IQ, SO-8 package | Superior precision and stability but 13× higher quiescent current and larger SO-8 footprint | Choose for lab-grade instrumentation where power is secondary to long-term drift and noise performance. |
Compared with ADR3450ARJZ-R7 and REF5050AIDR, the MAX6035AAUR50+T offers the best balance of ultra-low 73µA supply current, SOT23-3 compactness, and production-ready 25ppm/°C/±0.2% specs-making it optimal for cost-sensitive, battery-aware industrial and portable measurement systems.
Availability
MAX6035AAUR50+T is available at Aetrix Electronics and suitable for 4–20mA industrial loops, Li+ battery charger monitoring, and 12-bit data acquisition systems requiring stable component supply, long-lifecycle support, and consistent parametric performance across production batches.
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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets with precision signal chain solutions.
The MAX6035 family was designed specifically for high-supply-voltage, micropower reference applications in space- and energy-constrained systems-emphasizing ultra-low IQ, wide VIN range, and SOT23-3 integration without external components.
FAQ
What is the maximum input voltage rating for MAX6035AAUR50+T?
The MAX6035AAUR50+T has an absolute maximum input voltage of +36V, with recommended operating range from 6.9V to 33V. This wide input capability allows direct interface with 24V industrial buses and high-voltage battery chargers without external regulators. Exceeding 36V risks permanent damage per Absolute Maximum Ratings.
Does MAX6035AAUR50+T require an external output capacitor?
No, the MAX6035AAUR50+T is internally compensated and stable with 0–5µF output capacitance. An external capacitor is optional and only beneficial for improving transient response in high-dynamic-load applications. Omitting it saves board area-a key advantage in portable and sensor-node designs.
What is the typical supply current of MAX6035AAUR50+T at room temperature?
The MAX6035AAUR50+T draws 73µA typical quiescent supply current at +25°C, with a maximum of 95µA across –40°C to +125°C. Its supply current varies by only 0.7µA/V over 6.9V–33V input, making it exceptionally efficient for battery-powered systems where current draw must remain predictable and minimal.
Can MAX6035AAUR50+T sink current, and how much?
Yes, the MAX6035AAUR50+T can sink up to 2mA while maintaining output regulation and accuracy. This capability supports active pull-down of reference nodes, driving current into ADC reference inputs with sinking requirements, or interfacing with logic-level comparators-enabling bidirectional load handling not possible with basic shunt references.
What is the temperature coefficient specification for MAX6035AAUR50+T over its full operating range?
The MAX6035AAUR50+T guarantees a maximum temperature coefficient of 25ppm/°C over the full –40°C to +125°C operating range, measured using the "box" method. This ensures total output drift remains within ±1.5mV across the entire temperature span-critical for maintaining 12-bit accuracy in uncontrolled environmental deployments.
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:
- Tape & Reel (TR)
- 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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