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Analog Devices Inc./Maxim Integrated MAX6033BAUT41+T
- Part No.:
- MAX6033BAUT41+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- SOT-23-6
- Datasheet:
-
MAX6033BAUT41+T.pdf
- Description:
- IC VREF SERIES 0.2% SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
MAX6033BAUT41+T from Maxim Integrated is an ultra-high-precision, low-dropout series voltage reference delivering a stable 4.096V output with ±0.20% initial accuracy, 15ppm/°C max temperature coefficient over –40°C to +125°C, and only 40µA quiescent current. It features dual outputs (OUTF/OUTS) for force-sense operation, supports capacitive loads up to 100µF, and is optimized for high-resolution data converters in automotive and industrial systems.
For engineers reviewing the MAX6033BAUT41+T datasheet, MAX6033BAUT41+T pinout, MAX6033BAUT41+T application, or MAX6033BAUT41+T equivalent, key selection criteria include its 4.096V output matching common ADC/DAC full-scale references, force-sense architecture for improved load regulation, automotive-grade temperature range, and SOT23-6 package compatibility with space-constrained PCB layouts.
Technical Context
The MAX6033BAUT41+T implements a bandgap-based series voltage reference with laser-trimmed thin-film resistors and post-package trimming to achieve ±0.20% initial accuracy and 15ppm/°C tempco over –40°C to +125°C. Its force-sense (OUTF/OUTS) topology actively compensates for trace resistance and load-induced voltage drop, enabling <0.1mV/mA load regulation.
It operates from 4.3V to 12.6V input, maintains stability with 0.1µF–100µF output capacitance, and delivers 15mA source capability while consuming only 40µA typical supply current - making it suitable for battery-powered precision instrumentation requiring long-term drift stability and low noise (32µVP-P, 0.1Hz–10Hz).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096V ±0.20% at +25°C - matches standard 12-bit DAC/ADC full-scale reference points |
| Tempco (max) | 15ppm/°C (–40°C to +125°C) - ensures ≤±0.75mV total drift across automotive temperature range |
| Initial Accuracy | ±0.20% at +25°C - enables system calibration without per-unit trimming |
| Dropout Voltage | 200mV max at 1mA - allows operation from 4.3V supply with 4.096V output |
| Quiescent Current | 40µA typical - extends battery life in portable precision instruments |
| Noise (0.1–10Hz) | 32µVP-P - minimizes quantization uncertainty in 16-bit+ ADC systems |
| Load Regulation | 0.15mV/mA max - maintains reference integrity under dynamic load conditions |
| Capacitive Load Stability | Stable with 0.1µF to 100µF - accommodates filtering and transient suppression without oscillation |
Pinout & Package
The MAX6033BAUT41+T is housed in a RoHS-compliant 6-pin SOT23 package (U6FH+6 outline), with thermal resistance θJA = 134.4°C/W on a four-layer board. Pins 1 and 3 are internally connected and must remain unconnected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3 | I.C. (Internally Connected) | Not usable - internal connection only; no external connection permitted |
| 2 | GND | Reference ground return path; requires low-impedance connection to system ground plane |
| 4 | IN | Positive supply input (4.3V–12.6V); bypass with ≥0.1µF ceramic capacitor near pin |
| 5 | OUTF | Force output - drives load; connect directly to OUTS near device for Kelvin sensing |
| 6 | OUTS | Sense input - monitors actual load voltage; closes feedback loop for load regulation |
Key Features
| Feature | Design Value |
|---|---|
| Force-sense (OUTF/OUTS) architecture | Compensates for PCB trace resistance up to 1Ω, maintaining <0.1mV/mA load regulation |
| Laser-trimmed thin-film resistors | Enables ±0.20% initial accuracy without external calibration |
| Low 32µVP-P noise (0.1–10Hz) | Reduces effective number of bits (ENOB) degradation in 16-bit ADCs |
| Stable with 100µF output capacitance | Allows use of bulk capacitance for transient suppression without instability |
| Automotive temperature range | Qualified for –40°C to +125°C operation - suitable for engine control and ADAS modules |
| 40µA quiescent current | Enables >10-year battery life in low-power sensor nodes with 200mAh coin cells |
Applications
| High-Resolution Data Acquisition | Automotive Engine Control Unit (ECU) |
|---|---|
Use Scenario: 16-bit SAR ADC digitizing analog sensor signals (e.g., oxygen, knock, pressure) in harsh ECU environments. IC Role / Device Role / Timing Role: Provides stable 4.096V reference for ADC full-scale; force-sense topology rejects wiring resistance in distributed sensor harnesses. Use Value: Maintains ±0.5 LSB error over temperature and lifetime, eliminating need for periodic system recalibration. | Use Scenario: Precision current source biasing NTC thermistors and Hall-effect sensors in real-time combustion monitoring. IC Role / Device Role / Timing Role: Supplies regulated 4.096V to current-source circuit (Fig. 1); low drift ensures consistent sensor excitation across cold-start to hot-idle cycles. Use Value: Enables <±1°C temperature measurement accuracy over –40°C to +125°C ambient, meeting ISO 26262 ASIL-B requirements. |
| Portable Medical Instrumentation | Industrial Process Controller |
Use Scenario: Battery-powered ECG front-end with 24-bit delta-sigma ADC requiring ultra-low-noise, low-power reference. IC Role / Device Role / Timing Role: Primary voltage reference for ADC and DAC in analog signal chain; 40µA IQ minimizes battery drain during standby. Use Value: 32µVP-P noise contributes <0.001% of full-scale error, supporting diagnostic-grade waveform fidelity. | Use Scenario: 4–20mA transmitter module converting RTD/thermocouple readings in hazardous-area process loops. IC Role / Device Role / Timing Role: Reference for precision DAC generating loop current; stable tempco prevents span drift due to cabinet temperature gradients. Use Value: 15ppm/°C tempco limits output current error to <±0.015% over 50°C cabinet swing, exceeding IEC 61293 Class 0.1 accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5040AIDR | 4.096V output, 3ppm/°C max tempco, ±0.05% initial accuracy, SOIC-8 package | Higher accuracy and lower drift, but larger footprint and 95µA IQ | Choose for metrology-grade systems where size and power are secondary to long-term stability |
| ADR4540BRZ | 4.096V output, 3ppm/°C max tempco, ±0.02% initial accuracy, SOIC-8, 450µA IQ | Superior accuracy and noise (1.8µVRMS), but 11× higher supply current and no force-sense | Prefer when ultimate precision is required and board space allows SOIC-8; avoid in battery-powered designs |
Compared with REF5040AIDR and ADR4540BRZ, the MAX6033BAUT41+T trades absolute accuracy for ultra-low quiescent current and force-sense capability in a miniature SOT23-6 package - making it optimal for space- and power-constrained automotive and portable instrumentation where ±0.20% initial tolerance is sufficient.
Availability
MAX6033BAUT41+T is available at Aetrix Electronics and suitable for automotive engine control units, portable medical devices, industrial 4–20mA transmitters, and high-resolution data acquisition systems requiring stable component supply with guaranteed long-term availability.
Supply support for MAX6033BAUT41+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, mixed-signal, and power management ICs for demanding industrial, automotive, and communications applications.
The MAX6033 series was developed specifically for high-accuracy, low-power voltage referencing in space-constrained systems requiring automotive-grade reliability and force-sense compensation - targeting ADC/DAC biasing, sensor excitation, and precision current sources.
FAQ
What is the maximum input voltage for the MAX6033BAUT41+T?
The MAX6033BAUT41+T supports an input voltage range of 4.3V to 12.6V. This is derived from the line regulation specification requiring ≥4.3V for stable 4.096V output operation. Exceeding 12.6V violates absolute maximum ratings and may cause permanent damage. The 4.3V minimum ensures dropout margin across temperature and load variations.
Does the MAX6033BAUT41+T require an input bypass capacitor?
Yes, the MAX6033BAUT41+T requires a 0.1µF ceramic capacitor placed as close as possible to the IN pin for optimal line-transient performance. While the device can operate without it in static conditions, omitting this capacitor degrades PSRR and increases susceptibility to supply noise - particularly critical in noisy automotive or industrial environments where the MAX6033BAUT41+T is commonly deployed.
How does the force-sense (OUTF/OUTS) configuration improve accuracy in the MAX6033BAUT41+T?
The MAX6033BAUT41+T's OUTF/OUTS force-sense configuration actively regulates voltage at the load by closing the feedback loop at the sense point, rejecting voltage drop across PCB traces and connectors. This achieves <0.15mV/mA load regulation - significantly better than single-output references - ensuring the 4.096V reference remains accurate even with 1Ω of series resistance between the MAX6033BAUT41+T and the ADC input.
What is the output voltage noise specification for the MAX6033BAUT41+T?
The MAX6033BAUT41+T delivers 32µVP-P (0.1Hz–10Hz) and 22µVRMS (10Hz–1kHz) output voltage noise. This low noise floor is critical for preserving effective resolution in high-bit-depth ADCs; for example, in a 16-bit system with 4.096V full scale, 32µVP-P corresponds to <0.5 LSB peak-to-peak, minimizing quantization uncertainty.
Can the MAX6033BAUT41+T drive a 100µF output capacitor?
Yes, the MAX6033BAUT41+T is explicitly characterized and guaranteed stable with output capacitance ranging from 0.1µF to 100µF. This wide stability range allows designers to add bulk capacitance for improved transient response in applications like motor control feedback or sensor excitation, without risk of oscillation - a key advantage over many competing references that require tight COUT tolerances.
Is the MAX6033BAUT41+T qualified for automotive applications?
Yes, the MAX6033BAUT41+T is specified and tested over the full automotive temperature range of –40°C to +125°C, and its electrical characteristics (including 15ppm/°C tempco and ±0.20% initial accuracy) are guaranteed across this range. It is commonly used in engine control units, ADAS sensors, and body electronics where AEC-Q200 stress testing compliance is required - though formal AEC-Q200 certification status should be verified via Maxim/Analog Devices documentation.
MAX6033BAUT41+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- SOT-23-6
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 4.096V
- Voltage - Output (Max):
- -
- Current - Output:
- 15 mA
- Tolerance:
- ±0.2%
- Temperature Coefficient:
- 15ppm/°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 (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX6033BAUT41+T FAQ
1.How can I place an order for MAX6033BAUT41+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6033BAUT41+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 MAX6033BAUT41+T reliable?
The price and inventory of MAX6033BAUT41+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6033BAUT41+T is usually 5 days.
3.What payment methods are accepted for MAX6033BAUT41+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6033BAUT41+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6033BAUT41+T?
MAX6033BAUT41+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6033BAUT41+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 MAX6033BAUT41+T?
For technical support, including MAX6033BAUT41+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6033BAUT41+T requirements.
6.How does Aetrix verify that MAX6033BAUT41+T is sourced from the original manufacturer or authorized distributors?
All MAX6033BAUT41+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 MAX6033BAUT41+T meets industry standards.
7.What is the process for return or replacement of MAX6033BAUT41+T?
All MAX6033BAUT41+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6033BAUT41+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 MAX6033BAUT41+T part is unused and in its original packaging.
Return procedure for MAX6033BAUT41+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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