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Analog Devices Inc./Maxim Integrated MAX6035BAUR50+T
- Part No.:
- MAX6035BAUR50+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MAX6035BAUR50+T.pdf
- Description:
- IC VREF SERIES 0.5% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:13,108
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Product details
Overview
MAX6035BAUR50+T from Analog Devices is a high-voltage, precision micropower series-mode voltage reference delivering a stable 5.0V output with ±0.5% initial accuracy and 65ppm/°C max temperature coefficient over –40°C to +125°C. It draws only 80–100µA quiescent current, sources up to 10mA, sinks up to 2mA, and operates from 6.9V to 33V supply-enabling use in industrial sensor signal chains, Li+ battery chargers, and 12-bit data converters.
For engineers reviewing the MAX6035BAUR50+T datasheet, MAX6035BAUR50+T pinout, MAX6035BAUR50+T application, or MAX6035BAUR50+T equivalent, this page delivers verified specifications, SOT23-3 pin mapping, real-world load/line regulation behavior, capacitive-load stability up to 5µF, and direct alternatives for precision analog systems requiring low drift and ultra-low supply current.
Technical Context
The MAX6035BAUR50+T is a three-terminal series-mode reference with proprietary curvature-correction circuitry and laser-trimmed thin-film resistors. Its internal compensation eliminates need for external output capacitors while maintaining stability with capacitive loads up to 5µF-critical for space-constrained portable instrumentation.
Unlike shunt references, its supply current (80–100µA) is virtually independent of input voltage (6.9V–33V), varying by only ≤0.7µA/V. It achieves 72dB PSRR at 120Hz and 68µVP-P (0.1–10Hz) output noise-supporting high-resolution ADCs and precision DACs where reference integrity directly impacts ENOB.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.000V ±0.5% (4.975V–5.025V at +25°C); enables accurate scaling for 5V-rail ADCs/DACs without trimming. |
| Tempco (–40°C to +125°C) | 75ppm/°C max; ensures ≤0.375% full-scale drift across full industrial temp range-suitable for 12-bit systems. |
| Quiescent Current | 80–100µA; ultra-low and supply-voltage-independent-extends battery life in portable data loggers. |
| Load Current Capability | Sources 10mA / sinks 2mA; supports driving ADC reference inputs and small op-amp bias networks directly. |
| Capacitive Load Stability | Stable with 0–5µF output capacitance; allows use of bulk decoupling caps without oscillation risk. |
| Supply Voltage Range | 6.9V to 33V; accommodates unregulated 12V/24V industrial rails and high-voltage battery monitoring. |
| Line Regulation | 8–40µV/V; <0.001% change per volt-minimizes error when input varies due to upstream LDO dropout or ripple. |
Pinout & Package
MAX6035BAUR50+T is housed in a 3-pin SOT23-3 package (U3-1), with exposed pad not electrically connected. The compact 2.92mm × 1.3mm footprint supports high-density PCB layouts in handheld test equipment and IoT edge nodes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input Voltage Supply | Accepts 6.9V–33V; internally regulated to generate stable 5.0V reference-no external resistor required. |
| 2 (OUT) | Reference Output | Provides low-impedance 5.0V reference; capable of sourcing/sinking load current without external buffer. |
| 3 (GND) | Ground Reference | Return path for input and output currents; must be low-impedance connection to minimize ground bounce error. |
Key Features
| Feature | Design Value |
|---|---|
| No external capacitor required | Internally compensated-eliminates board area and BOM cost of output capacitor in stable applications. |
| Supply-current independence | ΔIIN/ΔVIN ≤ 0.7µA/V ensures consistent power draw across wide input range-simplifies battery-life modeling. |
| High PSRR (72dB @ 120Hz) | Rejects ripple from noisy DC/DC supplies-preserves reference accuracy in mixed-signal systems. |
| Low 0.1–10Hz noise (68µVP-P) | Minimizes quantization uncertainty in precision measurement front-ends and digital multimeters. |
| Thermal hysteresis (135ppm) | Ensures repeatable output after thermal cycling-critical for calibration-critical instrumentation. |
Applications
| Industrial 4–20mA Transmitters | Li+ Battery Charger Monitoring |
|---|---|
Use Scenario: Precision current-loop transmitter using microcontroller DAC and op-amp I/V conversion. IC Role / Device Role / Timing Role: Provides stable 5.0V reference for DAC and op-amp gain-setting resistors. Use Value: ±0.5% initial accuracy and 75ppm/°C tempco ensure loop accuracy remains within ±0.1% FSR over –40°C to +85°C ambient. |
Use Scenario: Voltage monitoring of single-cell Li+ battery during CC/CV charging phase. IC Role / Device Role / Timing Role: Supplies reference to ADC measuring cell voltage with 12-bit resolution. Use Value: 80–100µA quiescent current minimizes standby drain; 33V max input withstands charger transient surges. |
| Portable Digital Multimeters | 12-Bit Data Acquisition Systems |
Use Scenario: Handheld DMM with autoranging, auto-zero, and dual-slope ADC architecture. IC Role / Device Role / Timing Role: Serves as primary reference for integrator and comparator stages. Use Value: 68µVP-P (0.1–10Hz) low-frequency noise prevents digitization errors in slow-sampling modes. |
Use Scenario: Isolated analog input module for PLC or SCADA system with 12-bit SAR ADC. IC Role / Device Role / Timing Role: References ADC and drives anti-alias filter op-amps. Use Value: 10mA source capability eliminates need for external buffer; 5µF capacitive-load tolerance simplifies filtering design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6035AAUR50+T | ±0.2% initial accuracy and 25ppm/°C max tempco vs. B-grade's ±0.5%/65ppm/°C. | Better suited for 14-bit+ systems or tighter calibration requirements; higher cost. | Select AAUR50+T when long-term stability and lower drift dominate over cost sensitivity. |
| ADR3450ARJZ-R7 | 5.0V output, ±0.1% initial accuracy, 10ppm/°C max tempco, but 120µA typical IQ and 12V max VIN. | Limited to lower-supply systems; superior accuracy/tempco but incompatible with 24V industrial rails. | Choose ADR3450ARJZ-R7 only if supply stays ≤12V and sub-10ppm/°C drift is mandatory. |
Compared with MAX6035BAUR50+T, the AAUR50+T offers tighter initial tolerance and lower tempco at higher cost, while ADR3450ARJZ-R7 provides superior accuracy but fails to support >12V supplies-making MAX6035BAUR50+T the optimal balance of high-voltage operation, micropower consumption, and industrial-grade stability.
Availability
MAX6035BAUR50+T is available at Aetrix Electronics and suitable for industrial 4–20mA transmitters, portable digital multimeters, and Li+ battery charger monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6035BAUR50+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 since 1965.
The MAX6035 family was designed specifically for space- and power-constrained precision analog systems needing high-supply-voltage tolerance, ultra-low quiescent current, and guaranteed stability with capacitive loads-targeting portable instrumentation and rugged industrial sensors.
FAQ
What is the maximum input voltage rating for MAX6035BAUR50+T?
The absolute maximum input voltage for MAX6035BAUR50+T is +36V, with recommended operating range from 6.9V to 33V. This high-voltage capability allows direct connection to unregulated 24V industrial rails or battery packs without pre-regulation-reducing system component count. Exceeding 36V risks permanent damage per Absolute Maximum Ratings.
Does MAX6035BAUR50+T require an external output capacitor?
No, MAX6035BAUR50+T is internally compensated and does not require an external output capacitor for stability. It remains stable with 0–5µF capacitive loads, enabling flexible layout choices. Adding ≥0.1µF may improve transient response in step-load applications-but is optional, not mandatory.
What is the load current capability of MAX6035BAUR50+T?
MAX6035BAUR50+T can source up to 10mA and sink up to 2mA while maintaining output accuracy within specification. This allows direct driving of ADC reference inputs, op-amp bias networks, or small logic interfaces-eliminating need for external buffers in many 12-bit precision designs.
How does the temperature coefficient of MAX6035BAUR50+T compare to the A-grade variant?
MAX6035BAUR50+T has a maximum temperature coefficient of 65ppm/°C (–40°C to +85°C) and 75ppm/°C (–40°C to +125°C), versus 25ppm/°C and 30ppm/°C for the A-grade MAX6035AAUR50+T. The B-grade trades tighter drift for cost efficiency in applications where 12-bit accuracy suffices.
Is MAX6035BAUR50+T compatible with standard SOT23-3 footprints?
Yes, MAX6035BAUR50+T uses the industry-standard 3-pin SOT23-3 package (U3-1), with pin 1 = IN, pin 2 = OUT, pin 3 = GND. Its 2.92mm × 1.3mm body and 0.95mm height match JEDEC MO-178AB, ensuring drop-in compatibility with existing SOT23-3 land patterns and pick-and-place tooling.
MAX6035BAUR50+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:
- ±0.5%
- Temperature Coefficient:
- 75ppm/°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
MAX6035BAUR50+T FAQ
1.How can I place an order for MAX6035BAUR50+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6035BAUR50+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 MAX6035BAUR50+T reliable?
The price and inventory of MAX6035BAUR50+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6035BAUR50+T is usually 5 days.
3.What payment methods are accepted for MAX6035BAUR50+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6035BAUR50+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6035BAUR50+T?
MAX6035BAUR50+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6035BAUR50+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 MAX6035BAUR50+T?
For technical support, including MAX6035BAUR50+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6035BAUR50+T requirements.
6.How does Aetrix verify that MAX6035BAUR50+T is sourced from the original manufacturer or authorized distributors?
All MAX6035BAUR50+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 MAX6035BAUR50+T meets industry standards.
7.What is the process for return or replacement of MAX6035BAUR50+T?
All MAX6035BAUR50+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6035BAUR50+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 MAX6035BAUR50+T part is unused and in its original packaging.
Return procedure for MAX6035BAUR50+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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