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Analog Devices Inc./Maxim Integrated MAX6033CAUT25#TG16
- Part No.:
- MAX6033CAUT25#TG16
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- SOT-23-6
- Datasheet:
-
MAX6033CAUT25#TG16.pdf
- Description:
- IC VREF SERIES 0.1% SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:4,361
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Product details
Overview
MAX6033CAUT25#TG16 from Maxim Integrated is a precision 2.5V series voltage reference IC with ±0.10% initial accuracy, 40ppm/°C max temperature coefficient over –40°C to +125°C, and 200mV max dropout voltage at 10mA load. It delivers ultra-low 40µA quiescent current and supports capacitive loads up to 100µF - enabling high-accuracy ADC/DAC biasing in automotive-grade industrial instrumentation.
For engineers reviewing the MAX6033CAUT25#TG16 datasheet, MAX6033CAUT25#TG16 pinout, MAX6033CAUT25#TG16 application, or MAX6033CAUT25#TG16 equivalent, this page provides verified electrical parameters, automotive-qualified thermal performance, force/sense output architecture details, and real-world substitution guidance for precision analog signal chains.
Technical Context
The MAX6033CAUT25#TG16 implements a bandgap-based series voltage reference with dual-output force-sense topology (OUTF/OUTS), enabling remote sensing to eliminate IR drop errors in PCB traces. Its laser-trimmed thin-film resistors and post-package trimming ensure ±0.10% initial accuracy and <150ppm temperature hysteresis.
It operates across 2.7V to 12.6V input range with 0.001mV/mA load regulation and 50µV/V line regulation (–40°C to +125°C), supporting stable 2.5V reference generation even under varying supply and load conditions in harsh environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.500V ±0.025V (±0.10%) at +25°C - ensures direct compatibility with 12-bit+ SAR and sigma-delta ADCs requiring tight reference tolerance. |
| Temp Coefficient | 40ppm/°C max (–40°C to +125°C) - guarantees ≤±1.0mV total drift over full automotive temperature range. |
| Dropout Voltage | 200mV max at 1mA, 500mV max at 10mA (–40°C to +125°C) - enables operation from low-headroom supplies like 3.3V or 5V rails. |
| Quiescent Current | 40µA typical, 85µA max (–40°C to +125°C) - minimizes power draw in battery-powered handheld instruments and sensor nodes. |
| Noise (0.1–10Hz) | 16µVP-P - preserves SNR in 16-bit+ data converters without external filtering. |
| Load Regulation | 0.001mV/mA - maintains reference stability despite dynamic load changes in DAC buffer or precision current source circuits. |
| Capacitive Load Stability | Stable with 0.1µF to 100µF output capacitance - simplifies layout and accommodates EMI filtering or transient suppression. |
Pinout & Package
MAX6033CAUT25#TG16 is housed in a RoHS-compliant 6-pin SOT23 package (U6F+6 outline, 21-0058), optimized for high-density automotive and industrial PCBs with θJA = 134.4°C/W on four-layer board.
| 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 output. |
| 4 | IN | Positive supply input (2.7V–12.6V) - bypass with ≥0.1µF ceramic capacitor placed adjacent to pin for line-transient immunity. |
| 5 | OUTF | Force output - sources reference current to load; connect directly to OUTS near device to close feedback loop. |
| 6 | OUTS | Sense input - monitors voltage at load point; enables Kelvin sensing to reject trace resistance error. |
Key Features
| Feature | Design Value |
|---|---|
| Force/Sense Output Architecture | Eliminates voltage drop error in PCB traces or connectors by separating current delivery (OUTF) and voltage sensing (OUTS). |
| Laser-Trimmed Thin-Film Resistors | Enables ±0.10% initial accuracy and <40ppm/°C tempco without external calibration - reduces BOM count and test time. |
| Low 40µA Quiescent Current | Extends battery life in portable test equipment and enables always-on monitoring in low-power IoT edge nodes. |
| Stable with 100µF Capacitive Loads | Permits use of large bulk capacitors for EMI suppression without risking oscillation - simplifies EMC design. |
| Automotive Temperature Range | Rated for –40°C to +125°C operation - qualified for engine control modules, ADAS sensors, and under-hood power management. |
Applications
| High-Accuracy Industrial Control | Hand-Held Test Instruments |
|---|---|
Use Scenario: Precision analog input module in PLC I/O card measuring 4–20mA sensor signals with 16-bit resolution. IC Role / Device Role / Timing Role: Provides stable 2.5V reference for SAR ADC and excitation current source. Use Value: ±0.10% initial accuracy and 40ppm/°C tempco ensure <0.02% total measurement error across ambient temperature swings. |
Use Scenario: Portable multimeter with auto-ranging 200k-count display and integrated thermocouple interface. IC Role / Device Role / Timing Role: Supplies reference voltage for dual-slope integrator and cold-junction compensation DAC. Use Value: 16µVP-P low-frequency noise prevents digitization dither, preserving effective resolution in DC measurements. |
| Hard-Disk Drive Servo Control | Automotive Powertrain Sensors |
Use Scenario: Position feedback circuit in HDD voice-coil motor driver using 14-bit DAC for fine head positioning. IC Role / Device Role / Timing Role: Delivers low-noise 2.5V reference to DAC while rejecting supply ripple via 70dB PSRR at 1kHz. Use Value: 200mV dropout allows operation from 3.3V rail during spin-up, avoiding need for dedicated LDO. |
Use Scenario: Exhaust gas oxygen (EGO) sensor signal conditioning in Tier 1 engine control unit. IC Role / Device Role / Timing Role: References 12-bit ADC sampling lambda sensor output under wide thermal cycling. Use Value: 150ppm hysteresis and 40ppm/°C tempco ensure consistent A/F ratio calculation across repeated hot/cold cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF3425RTET | 2.5V, ±0.05% initial accuracy, 25ppm/°C max tempco, 65µA IQ, SOT23-6 | Higher accuracy and lower tempco but higher quiescent current - better for lab-grade instruments, less suitable for battery operation. | Select REF3425RTET when ±0.05% accuracy is mandatory and supply current >65µA is acceptable. |
| ADR4525BRZ | 2.5V, ±0.02% initial accuracy, 3ppm/°C max tempco, 950µA IQ, SOIC-8 | Superior stability and noise performance but 23× higher supply current and larger SOIC-8 footprint - suited for mains-powered precision systems. | Choose ADR4525BRZ only in fixed-power, space-tolerant designs where ultra-low drift outweighs efficiency penalties. |
Compared with REF3425RTET and ADR4525BRZ, MAX6033CAUT25#TG16 offers the optimal balance of automotive-grade temperature range, ultra-low 40µA supply current, and force-sense architecture - making it uniquely suited for embedded industrial and automotive applications where power, size, and trace-resistance rejection are critical.
Availability
MAX6033CAUT25#TG16 is available at Aetrix Electronics and suitable for high-accuracy industrial control, handheld test instrumentation, and automotive powertrain sensor systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6033CAUT25#TG16 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 high-performance analog and mixed-signal semiconductors for demanding industrial, automotive, and communications applications.
The MAX6033 family was engineered specifically for precision voltage reference needs in automotive-grade signal chains - emphasizing low dropout, force-sense topology, and guaranteed performance over –40°C to +125°C.
FAQ
What is the maximum capacitive load supported by MAX6033CAUT25#TG16?
MAX6033CAUT25#TG16 is stable with output capacitance ranging from 0.1µF to 100µF. This wide range allows designers to add bulk capacitance for EMI filtering or transient suppression without risk of oscillation - a key advantage over shunt references that require strict COUT limits. The 100µF upper limit applies across the full –40°C to +125°C operating range.
Does MAX6033CAUT25#TG16 require an input bypass capacitor?
While not strictly required for stability, MAX6033CAUT25#TG16 benefits significantly from a 0.1µF ceramic capacitor placed directly at the IN pin. This improves line-transient response and suppresses high-frequency supply noise - especially critical in noisy automotive or industrial environments. The capacitor should be located as close as possible to the IN and GND pins to minimize parasitic inductance.
How does the force-sense (OUTF/OUTS) architecture improve accuracy in MAX6033CAUT25#TG16?
The OUTF/OUTS configuration in MAX6033CAUT25#TG16 separates current delivery from voltage sensing, enabling Kelvin-style remote sensing. By routing OUTS directly to the load point, voltage drops across PCB traces or connectors are excluded from regulation - maintaining true 2.500V at the load regardless of trace resistance. This eliminates a common source of error in precision analog systems.
What is the dropout voltage specification for MAX6033CAUT25#TG16 at 10mA load and full temperature range?
At 10mA output current and across –40°C to +125°C, MAX6033CAUT25#TG16 exhibits a maximum dropout voltage of 500mV. This means the device maintains regulation with input voltages as low as 3.0V (2.5V + 0.5V) - enabling reliable operation from standard 3.3V or 5V rails even under worst-case thermal and load conditions.
Is MAX6033CAUT25#TG16 qualified for automotive applications?
Yes, MAX6033CAUT25#TG16 is explicitly rated for the automotive temperature range (–40°C to +125°C) and packaged in RoHS-compliant SOT23. Its specifications - including 40ppm/°C tempco, 150ppm hysteresis, and 1000-hour long-term stability of 40ppm - are guaranteed across this range, meeting AEC-Q100 stress test requirements for non-automotive-qualified parts used in automotive subsystems.
MAX6033CAUT25#TG16 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- SOT-23-6
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 2.5V
- Voltage - Output (Max):
- -
- Current - Output:
- 15 mA
- Tolerance:
- ±0.1%
- Temperature Coefficient:
- 40ppm/°C
- Noise - 0.1Hz to 10Hz:
- 16µVp-p
- Noise - 10Hz to 10kHz:
- 12µVrms
- Voltage - Input:
- 2.7V ~ 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
MAX6033CAUT25#TG16 FAQ
1.How can I place an order for MAX6033CAUT25#TG16 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6033CAUT25#TG16 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 MAX6033CAUT25#TG16 reliable?
The price and inventory of MAX6033CAUT25#TG16 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6033CAUT25#TG16 is usually 5 days.
3.What payment methods are accepted for MAX6033CAUT25#TG16?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6033CAUT25#TG16 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6033CAUT25#TG16?
MAX6033CAUT25#TG16 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6033CAUT25#TG16 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 MAX6033CAUT25#TG16?
For technical support, including MAX6033CAUT25#TG16 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6033CAUT25#TG16 requirements.
6.How does Aetrix verify that MAX6033CAUT25#TG16 is sourced from the original manufacturer or authorized distributors?
All MAX6033CAUT25#TG16 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 MAX6033CAUT25#TG16 meets industry standards.
7.What is the process for return or replacement of MAX6033CAUT25#TG16?
All MAX6033CAUT25#TG16 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6033CAUT25#TG16, 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 MAX6033CAUT25#TG16 part is unused and in its original packaging.
Return procedure for MAX6033CAUT25#TG16:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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