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Analog Devices Inc./Maxim Integrated MAX6033BAUT30+T
- Part No.:
- MAX6033BAUT30+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- SOT-23-6
- Datasheet:
-
MAX6033BAUT30+T.pdf
- Description:
- IC VREF SERIES 0.2% SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,102
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Product details
Overview
MAX6033BAUT30+T from Maxim Integrated is a high-precision, low-dropout series voltage reference delivering a stable 3.000V output with ±0.20% initial accuracy, 15ppm/°C max temperature coefficient over -40°C to +125°C, and 40µA quiescent current. It serves as a precision analog reference in high-resolution data converters and automotive-grade power regulation circuits.
For engineers reviewing the MAX6033BAUT30+T datasheet, MAX6033BAUT30+T pinout, MAX6033BAUT30+T application, or MAX6033BAUT30+T equivalent, key selection criteria include its 3.0V output stability under capacitive loads up to 100µF, 200mV max dropout at 1mA, and guaranteed performance across the extended automotive temperature range.
Technical Context
The MAX6033BAUT30+T employs bandgap-based architecture with laser-trimmed thin-film resistors and post-package trimming to achieve ±0.20% initial accuracy and 15ppm/°C max tempco over -40°C to +125°C. Its dual-output (OUTF/OUTS) force-sense topology actively compensates for PCB trace resistance, enabling stable regulation even with remote load placement.
This series reference operates from 3.2V to 12.6V input, delivers up to 15mA output current, and maintains 0.002mV/mA load regulation (typ) and 30µV/V line regulation (max) - critical for maintaining ADC/DAC reference integrity in noisy industrial power rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.000V ±0.20% (±6mV) at +25°C - ensures predictable full-scale reference for 14-bit+ DACs and 16-bit+ ADCs |
| Tempco | 15ppm/°C max (-40°C to +125°C) - contributes ≤±1.8mV drift over full automotive range, enabling <0.01% system error budget |
| Dropout Voltage | 200mV max at 1mA - allows operation from 3.2V supply while maintaining regulation, reducing headroom requirements vs. shunt references |
| Quiescent Current | 40µA typ - enables multi-year battery life in portable instrumentation and low-power sensor nodes |
| Noise (0.1–10Hz) | 24µVP-P - low enough to avoid degrading ENOB of 16-bit+ converters without external filtering |
| Load Regulation | 0.002mV/mA typ - limits output shift to <30µV over 15mA load swing, preserving reference fidelity in dynamic systems |
| Capacitive Load Stability | Stable with 0.1µF to 100µF - supports robust transient response in motor control feedback loops and switching regulator references |
Pinout & Package
MAX6033BAUT30+T is housed in a RoHS-compliant 6-pin SOT23 package (U6FH+6 outline), with thermal resistance θJA = 134.4°C/W on four-layer board - suitable for high-density automotive PCB layouts requiring minimal footprint and thermal management.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3 | I.C. (Internally Connected) | Not externally accessible; internal connection only - must remain unconnected on PCB |
| 2 | GND | Analog ground reference plane - requires low-impedance connection to minimize noise coupling into reference path |
| 4 | IN | Positive supply input (3.2V–12.6V) - bypass with ≥0.1µF ceramic capacitor placed adjacent to pin for line-transient immunity |
| 5 | OUTF | Force output - drives load; must be shorted to OUTS near device package to enable Kelvin sensing |
| 6 | OUTS | Sense input - monitors remote load voltage; closing OUTF–OUTS loop cancels trace IR drop up to 100mΩ |
Key Features
| Feature | Design Value |
|---|---|
| Force-sense output architecture | Eliminates voltage error from PCB trace resistance - maintains ±0.01% reference accuracy at remote loads up to 10cm away |
| Laser-trimmed thin-film resistors | Enables ±0.20% initial accuracy without calibration - reduces production test time and BOM cost in high-volume automotive modules |
| Low 24µVP-P (0.1–10Hz) noise | Preserves SNR in 16-bit SAR ADCs without additional filtering - avoids added component count and board space |
| Stable with 100µF capacitive load | Supports fast transient response in servo amplifier feedback paths - prevents oscillation during step-load events |
| Automotive temperature range | Guaranteed operation from -40°C to +125°C - qualified for engine control units, ADAS sensors, and transmission control modules |
Applications
| Industrial Process Controller | Automotive Engine Control Unit (ECU) |
|---|---|
Use Scenario: High-accuracy analog input conditioning for 4–20mA current-loop sensors in PLC I/O modules. IC Role / Device Role / Timing Role: Precision 3.0V reference for 16-bit sigma-delta ADC front-end, rejecting supply ripple and thermal drift. Use Value: Enables <0.1% total measurement uncertainty over -25°C to +70°C ambient, meeting ISA-84 functional safety requirements. |
Use Scenario: Reference voltage for oxygen sensor signal conditioning and fuel injector driver feedback in gasoline direct injection systems. IC Role / Device Role / Timing Role: Stable 3.0V reference for analog-to-digital conversion of wideband lambda sensor outputs under rapid thermal cycling. Use Value: Maintains ±1.5mV output stability across -40°C to +125°C junction temperature, ensuring closed-loop air/fuel ratio control accuracy. |
| Portable Handheld Multimeter | Medical Patient Monitor Analog Front-End |
Use Scenario: Battery-powered 6½-digit DMM requiring ultra-low drift reference for autoranging DC voltage measurements. IC Role / Device Role / Timing Role: Primary voltage reference for dual-slope integrator and auto-zero amplifier stages. Use Value: Delivers 15ppm/°C max drift and 40µA supply current - extends battery life to >200 hours while maintaining 0.005% reading accuracy. |
Use Scenario: ECG and SpO₂ analog signal chain where reference stability directly impacts diagnostic resolution and artifact rejection. IC Role / Device Role / Timing Role: Low-noise 3.0V reference for 24-bit delta-sigma ADCs digitizing biopotential signals. Use Value: 24µVP-P (0.1–10Hz) noise and 0.002mV/mA load regulation prevent baseline wander and improve SNR by >3dB in sub-1Hz bandwidths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF3030AIDBZR | 3.0V, ±0.2% initial accuracy, 50ppm/°C max tempco, SOT23-3, 50µA IQ | Higher tempco and no force-sense capability - unsuitable for remote-sensing or automotive under-hood use | Select when cost sensitivity outweighs thermal stability requirements and layout allows local reference placement |
| ADR3430ARJZ-R7 | 3.0V, ±0.1% initial accuracy, 10ppm/°C max tempco, SOT23-5, 120µA IQ | Lower tempco but higher quiescent current and no OUTF/OUTS architecture - limits battery life and trace-drop compensation | Prefer for lab equipment or fixed-temperature industrial controllers where ultra-low drift is prioritized over power and layout flexibility |
Compared with REF3030AIDBZR and ADR3430ARJZ-R7, the MAX6033BAUT30+T uniquely combines automotive-grade tempco (15ppm/°C), force-sense topology, and ultra-low 40µA supply current - making it the only option among the three qualified for high-reliability remote-sensing applications in thermally aggressive environments.
Availability
MAX6033BAUT30+T is available at Aetrix Electronics and suitable for precision regulators, A/D and D/A converters, and automotive engine control units requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6033BAUT30+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 demanding industrial, automotive, and medical applications - emphasizing low noise, high accuracy, and robustness.
The MAX6033BAUT30+T belongs to Maxim's high-precision series voltage reference product line, engineered specifically for applications requiring stable, low-drift references in space-constrained, thermally variable environments such as automotive ECUs and portable test equipment.
FAQ
What is the maximum input voltage rating for MAX6033BAUT30+T?
The absolute maximum input voltage for MAX6033BAUT30+T is +13V relative to GND. However, the recommended operating input range is 3.2V to 12.6V for 3.0V output variants. Exceeding 12.6V may degrade long-term stability or trigger internal protection mechanisms not specified in the datasheet.
Does MAX6033BAUT30+T require an input bypass capacitor?
Yes - a minimum 0.1µF ceramic capacitor placed as close as possible to the IN pin is required for optimal line-transient performance. The datasheet confirms this capacitor improves PSRR and prevents instability during supply voltage steps, especially critical in automotive power systems with high ripple content.
Can MAX6033BAUT30+T drive a 100µF output capacitor safely?
Yes - MAX6033BAUT30+T is explicitly characterized and guaranteed stable with output capacitance from 0.1µF up to 100µF. This capability is validated across -40°C to +125°C and supports applications like motor control feedback where large bulk capacitance suppresses load-induced transients.
What is the function of the I.C. pins (1 and 3) on MAX6033BAUT30+T?
Pins 1 and 3 are internally connected and must remain unconnected on the PCB. They serve no external circuit function and are not intended for routing, grounding, or any other external connection - doing so may compromise device reliability or parametric performance per Maxim's pin description guidance.
How does the OUTF/OUTS force-sense configuration improve accuracy in MAX6033BAUT30+T?
The OUTF/OUTS pair implements a Kelvin sensing loop: OUTF supplies current to the load while OUTS senses voltage at the load point. By closing this loop near the device, MAX6033BAUT30+T cancels voltage drop across PCB traces - enabling ±0.01% reference accuracy even with 100mΩ trace resistance between IC and load.
MAX6033BAUT30+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):
- 3V
- Voltage - Output (Max):
- -
- Current - Output:
- 15 mA
- Tolerance:
- ±0.2%
- Temperature Coefficient:
- 15ppm/°C
- Noise - 0.1Hz to 10Hz:
- 24µVp-p
- Noise - 10Hz to 10kHz:
- 15µVrms
- Voltage - Input:
- 3.2V ~ 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
MAX6033BAUT30+T FAQ
1.How can I place an order for MAX6033BAUT30+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6033BAUT30+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 MAX6033BAUT30+T reliable?
The price and inventory of MAX6033BAUT30+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6033BAUT30+T is usually 5 days.
3.What payment methods are accepted for MAX6033BAUT30+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6033BAUT30+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6033BAUT30+T?
MAX6033BAUT30+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6033BAUT30+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 MAX6033BAUT30+T?
For technical support, including MAX6033BAUT30+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6033BAUT30+T requirements.
6.How does Aetrix verify that MAX6033BAUT30+T is sourced from the original manufacturer or authorized distributors?
All MAX6033BAUT30+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 MAX6033BAUT30+T meets industry standards.
7.What is the process for return or replacement of MAX6033BAUT30+T?
All MAX6033BAUT30+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6033BAUT30+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 MAX6033BAUT30+T part is unused and in its original packaging.
Return procedure for MAX6033BAUT30+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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