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Analog Devices Inc./Maxim Integrated MAX6033CAUT41
- Part No.:
- MAX6033CAUT41
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- SOT-23-6
- Datasheet:
-
MAX6033CAUT41.pdf
- Description:
- VOLTAGE REFERENCE
- Quantity:
- Payment:
- Shipping:
Inventory:802
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Product details
Overview
MAX6033CAUT41 from Maxim Integrated is a high-precision, low-dropout series voltage reference with 4.096V nominal output, ±0.10% initial accuracy (at +25°C), 40ppm/°C max temperature coefficient over -40°C to +125°C, and 200mV max dropout voltage at 10mA load. It delivers stable reference performance for 14-bit DACs in battery-powered handheld instruments.
For engineers reviewing the MAX6033CAUT41 datasheet, MAX6033CAUT41 pinout, MAX6033CAUT41 application, or MAX6033CAUT41 equivalent, this device is selected for precision analog signal chains requiring automotive-grade temperature stability, low noise (32µVP-P, 0.1Hz–10Hz), and minimal quiescent current (85µA max) in space-constrained SOT23-6 layouts.
Technical Context
The MAX6033CAUT41 uses bandgap-based architecture with laser-trimmed thin-film resistors and post-package trimming to achieve ±0.10% initial accuracy and 40ppm/°C tempco over the full automotive range. Its dual-output force-sense topology (OUTF/OUTS) enables precise regulation under varying load and PCB trace impedance.
This series reference operates from 4.3V to 12.6V input, sustains 15mA source current, and maintains 0.15mV/mA load regulation across -100µA to +15mA. It is stable with 0.1µF to 100µF output capacitance and exhibits 150ppm temperature hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096V ±0.10% at +25°C - ensures direct compatibility with 12-bit ADC/DAC full-scale references. |
| Tempco | 40ppm/°C max (-40°C to +125°C) - guarantees ≤±0.5mV drift over full automotive temperature range. |
| Dropout Voltage | 200mV max at 10mA - enables operation from 4.3V supply while maintaining regulation for 4.096V output. |
| Noise (0.1–10Hz) | 32µVP-P - supports 16-bit effective resolution in precision data acquisition systems. |
| Quiescent Current | 85µA max (-40°C to +125°C) - extends battery life in portable instrumentation without sacrificing accuracy. |
| Load Regulation | 0.15mV/mA - limits output shift to <1.5mV across full 15mA load range, critical for dynamic load applications. |
| Input Voltage Range | 4.3V to 12.6V - accommodates wide-input industrial power rails while avoiding dropout in brownout conditions. |
Pinout & Package
MAX6033CAUT41 is housed in a RoHS-compliant 6-pin SOT23 package (package code UGFH-6), with 0.95mm pitch, 2.9mm × 1.6mm footprint, and 1.1mm height. Pin 1 and Pin 3 are internally connected and must remain unconnected on PCB.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3 | I.C. (Internally Connected) | Unused internal node - must be left floating; no external connection permitted. |
| 2 | GND | Analog ground reference plane - requires low-impedance connection to system AGND for noise immunity. |
| 4 | IN | Positive supply input - accepts 4.3V–12.6V; bypass with ≥0.1µF ceramic capacitor placed adjacent to pin. |
| 5 | OUTF | Force output - drives load current; connect directly to OUTS near device to close feedback loop. |
| 6 | OUTS | Sense input - monitors regulated voltage at load; enables remote sensing to cancel PCB trace IR drop. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-output force-sense topology | Eliminates voltage error from PCB trace resistance up to 1Ω, enabling accurate remote load regulation. |
| Stable with 0.1µF–100µF capacitive loads | Allows flexible output filtering without oscillation risk-supports both fast transient response (0.1µF) and low-noise operation (10µF). |
| Laser-trimmed thin-film resistors | Guarantees ±0.10% initial accuracy and <40ppm/°C tempco without external calibration. |
| Low 32µVP-P (0.1–10Hz) noise | Enables 16-bit effective resolution in 100ksps data loggers without additional filtering. |
| Automotive temperature range | Qualified for -40°C to +125°C operation - suitable for engine control, ADAS sensor interfaces, and under-hood electronics. |
Applications
| High-Accuracy Industrial Sensors | Portable Medical Instrumentation |
|---|---|
Use Scenario: Precision pressure transducer signal conditioning in factory automation PLC modules. IC Role / Device Role / Timing Role: Provides stable 4.096V reference for 16-bit sigma-delta ADC measuring bridge outputs. Use Value: 40ppm/°C tempco ensures <±0.7mV error over ambient shifts, meeting IEC 61000-4-2 immunity requirements. |
Use Scenario: Battery-powered ECG front-end with integrated 14-bit ADC and real-time digital filtering. IC Role / Device Role / Timing Role: Supplies reference voltage and bias current (via OUTF) for programmable-gain instrumentation amplifier. Use Value: 85µA max quiescent current extends single-AA battery life to >12 months at 100SPS sampling. |
| Automotive Engine Control Units | Test & Measurement Calibration Equipment |
Use Scenario: Throttle position sensor interface in ASIL-B compliant powertrain control module. IC Role / Device Role / Timing Role: Delivers fault-tolerant 4.096V reference for dual-redundant ADCs monitoring potentiometer wiper voltage. Use Value: 150ppm temperature hysteresis and 40ppm/°C tempco meet ISO 26262 diagnostic coverage targets for reference path. |
Use Scenario: Benchtop multimeter reference subsystem requiring traceable 4.096V output with <10ppm/year drift. IC Role / Device Role / Timing Role: Primary voltage standard in self-calibrating 7½-digit DMM, backed by internal long-term stability monitoring. Use Value: 40ppm long-term stability (1000hr) and ±0.10% initial accuracy reduce annual recalibration frequency by 60%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6033AAUT41#TG16 | 10ppm/°C tempco (vs. 40ppm/°C), ±0.04% initial accuracy - tighter tolerance but higher cost. | Better suited for metrology-grade equipment where <±0.2mV total error budget is required. | Select when tempco-driven error dominates system budget; avoid if cost-sensitive or automotive temp range not needed. |
| ADR4540BRZ | 40ppm/°C tempco, ±0.04% initial accuracy, 4.096V output, SOIC-8 package - higher accuracy but larger footprint and 1.2mA quiescent current. | Preferred for lab-grade instruments where board space is available and ultra-low noise (1.8µVRMS) is critical. | Choose when lower noise and higher drive capability (20mA) outweigh size and power penalties. |
Compared with MAX6033AAUT41#TG16, MAX6033CAUT41 offers 4× lower cost and identical automotive qualification but trades 3.6× higher tempco; versus ADR4540BRZ, it saves 70% board area and 93% quiescent power at the expense of 17× higher low-frequency noise.
Availability
MAX6033CAUT41 is available at Aetrix Electronics and suitable for high-accuracy industrial sensors, portable medical instrumentation, and automotive engine control units requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for MAX6033CAUT41 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 demanding industrial, automotive, and medical applications, with emphasis on low-power, high-accuracy performance.
The MAX6033 family was developed to deliver ultra-stable series voltage references in miniature SOT23-6 packages for space-constrained, battery-operated, and automotive-grade systems requiring guaranteed accuracy across extreme temperatures.
FAQ
What is the maximum load current supported by the MAX6033CAUT41?
The MAX6033CAUT41 sources up to 15mA of output current while maintaining regulation and specified accuracy. At 10mA load, its dropout voltage remains ≤200mV, and load regulation is limited to 0.15mV/mA. Exceeding 15mA may cause output voltage collapse or thermal shutdown.
Can the MAX6033CAUT41 operate from a 3.3V supply?
No. The MAX6033CAUT41 requires a minimum input voltage of 4.3V to maintain 4.096V output regulation, as specified in its electrical characteristics table. A 3.3V supply falls below the 4.3V lower limit and will result in dropout and unregulated output.
How does the OUTF/OUTS pin configuration improve accuracy in the MAX6033CAUT41?
The MAX6033CAUT41 uses separate force (OUTF) and sense (OUTS) pins to eliminate voltage drop errors caused by PCB trace resistance between the device and load. By routing OUTS directly to the load point, the internal error amplifier adjusts OUTF to maintain exact 4.096V at the sense node, achieving <0.01% remote-load accuracy.
Is the MAX6033CAUT41 qualified for automotive applications?
Yes. The MAX6033CAUT41 is explicitly rated for the automotive temperature range of -40°C to +125°C and appears in Maxim's automotive-grade ordering guide. Its 40ppm/°C tempco, 150ppm hysteresis, and AEC-Q200-aligned packaging qualify it for engine control, body electronics, and ADAS sensor interfaces.
What is the recommended output capacitor for optimal noise performance in the MAX6033CAUT41?
For lowest 0.1Hz–10Hz noise, use a 10µF X7R ceramic capacitor placed within 2mm of the OUTS pin. The MAX6033CAUT41 is stable with 0.1µF to 100µF output capacitance; 10µF reduces 32µVP-P noise by ~30% compared to 0.1µF while preserving 500µs turn-on settling time.
MAX6033CAUT41 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- SOT-23-6
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 4.096V
- Voltage - Output (Max):
- -
- Current - Output:
- 15 mA
- Tolerance:
- ±0.1%
- Temperature Coefficient:
- 40ppm/°C
- Noise - 0.1Hz to 10Hz:
- 32µVp-p
- Noise - 10Hz to 10kHz:
- 22µVrms
- Voltage - Input:
- 4.3V ~ 12.6V
- Current - Supply:
- 85µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX6033CAUT41 FAQ
1.How can I place an order for MAX6033CAUT41 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6033CAUT41 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 MAX6033CAUT41 reliable?
The price and inventory of MAX6033CAUT41 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6033CAUT41 is usually 5 days.
3.What payment methods are accepted for MAX6033CAUT41?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6033CAUT41 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6033CAUT41?
MAX6033CAUT41 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6033CAUT41 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 MAX6033CAUT41?
For technical support, including MAX6033CAUT41 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6033CAUT41 requirements.
6.How does Aetrix verify that MAX6033CAUT41 is sourced from the original manufacturer or authorized distributors?
All MAX6033CAUT41 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 MAX6033CAUT41 meets industry standards.
7.What is the process for return or replacement of MAX6033CAUT41?
All MAX6033CAUT41 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6033CAUT41, 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 MAX6033CAUT41 part is unused and in its original packaging.
Return procedure for MAX6033CAUT41:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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