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Analog Devices Inc./Maxim Integrated MAX6033BAUT25
- Part No.:
- MAX6033BAUT25
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- SOT-23-6
- Datasheet:
-
MAX6033BAUT25.pdf
- Description:
- Three Terminal Voltage Reference
- Quantity:
- Payment:
- Shipping:
Inventory:3,369
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Product details
Overview
MAX6033BAUT25 from Maxim Integrated is an ultra-high-precision, 2.5V series voltage reference IC with ±0.20% initial accuracy, 15ppm/°C max temperature coefficient (−40°C to +125°C), and 200mV max dropout voltage at 10mA load. It delivers 15mA output current while consuming only 40µA quiescent supply current, making it suitable for high-resolution ADC/DAC biasing in automotive-grade instrumentation and industrial control systems.
For engineers reviewing the MAX6033BAUT25 datasheet, MAX6033BAUT25 pinout, MAX6033BAUT25 application, or MAX6033BAUT25 equivalent, key selection criteria include its guaranteed automotive temperature range (−40°C to +125°C), dual-output force/sense architecture for improved load regulation (0.001mV/mA), low 16µVP-P noise (0.1Hz–10Hz), and SOT23-6 package compatibility with space-constrained PCB layouts.
Technical Context
The MAX6033BAUT25 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 max TCVOUT over −40°C to +125°C. Its force-sense (OUTF/OUTS) topology isolates reference sensing from output current path, enabling stable operation with capacitive loads up to 100µF and excellent load regulation (0.001mV/mA).
This device operates from 2.7V to 12.6V input, maintains 0.1% output stability across 15mA sourcing, and achieves 500µs turn-on settling time to ±0.01% of final value. Its BiCMOS process ensures low 40µA quiescent current independent of VIN, supporting battery-powered precision systems requiring long-term stability (40ppm/1000hr) and low hysteresis (150ppm).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.500V ±0.20% at +25°C - guarantees tight absolute reference level for 14-bit+ DAC/ADC calibration. |
| Temp Coefficient | 15ppm/°C max (−40°C to +125°C) - limits full-range drift to ±187.5µV, critical for automotive sensor signal chains. |
| Dropout Voltage | 200mV max at 10mA - enables operation from 2.7V supply while maintaining 2.5V output, reducing system power loss. |
| Quiescent Current | 40µA typical - minimizes standby power in always-on precision monitoring circuits. |
| Noise (0.1–10Hz) | 16µVP-P - supports <16-bit ENOB in high-resolution data acquisition without external filtering. |
| Load Regulation | 0.001mV/mA - ensures <25µV shift across full 15mA load, essential for dynamic current-source applications. |
| Supply Range | 2.7V to 12.6V - allows direct connection to wide-input DC-DC outputs or unregulated battery rails. |
Pinout & Package
MAX6033BAUT25 is housed in a RoHS-compliant 6-pin SOT23 package (package code UGFH-6), with 1.6mm × 2.9mm 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 2.7V–12.6V; bypass with ≥0.1µF ceramic capacitor placed adjacent to pin. |
| 5 | OUTF | Force output - sources up to 15mA; connects directly to load; bypass with 0.1µF capacitor to GND. |
| 6 | OUTS | Sense input - monitors reference voltage at load point; shorted to OUTF near device for optimal regulation. |
Key Features
| Feature | Design Value |
|---|---|
| Force-sense output architecture | Separates current delivery (OUTF) from voltage sensing (OUTS), eliminating IR drop error in remote load applications. |
| Stable with capacitive loads | Operates reliably with 0.1µF to 100µF output capacitance - simplifies EMI filtering and transient response tuning. |
| Ultra-low noise performance | 16µVP-P (0.1Hz–10Hz) enables sub-LSB accuracy in 16-bit+ SAR ADC systems without additional LDO filtering. |
| Automotive temperature range | Specified and tested from −40°C to +125°C - qualified for under-hood and chassis-mounted industrial sensors. |
| Laser and post-package trimming | Guarantees ±0.20% initial accuracy and 15ppm/°C TCVOUT without system-level calibration. |
Applications
| High-Accuracy Industrial Control | Automotive Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Precision analog front-end for pressure/temperature transducers in programmable logic controllers (PLCs) operating in factory environments with wide ambient swings. IC Role / Device Role / Timing Role: Provides stable 2.5V reference for 16-bit sigma-delta ADCs digitizing 4–20mA loop signals. Use Value: 15ppm/°C drift and 40ppm/1000hr long-term stability ensure <±0.01% measurement error over 10-year field deployment. |
Use Scenario: Reference source for oxygen sensor (lambda) interface circuits in engine control units (ECUs), exposed to under-hood thermal cycling. IC Role / Device Role / Timing Role: Supplies regulated 2.5V bias to op-amp gain stages and ADC reference inputs in AFR feedback loops. Use Value: −40°C to +125°C guaranteed operation and 150ppm hysteresis prevent calibration drift after repeated hot/cold cycles. |
| Portable Test & Measurement | Hard-Disk Drive Servo Control |
|
Use Scenario: Battery-powered handheld multimeter requiring stable reference across varying battery voltage (3.0–4.2V) and temperature. IC Role / Device Role / Timing Role: Generates precise 2.5V reference for autoranging ADC and digital calibration routines. Use Value: 40µA quiescent current extends battery life >200 hours; 200mV dropout enables full accuracy down to 2.7V battery cutoff. |
Use Scenario: Reference for voice-coil motor (VCM) position feedback circuitry in enterprise-class HDDs with strict jitter requirements. IC Role / Device Role / Timing Role: Supplies low-noise 2.5V reference to servo channel ADCs sampling head-position error signals. Use Value: 16µVP-P noise and 0.001mV/mA load regulation minimize position quantization error below 1nm resolution threshold. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR3425BRJZ-R7 | ±0.1% initial accuracy, 10ppm/°C max TCVOUT, 3.5mA max output, 4.5µA quiescent current | Lower power but lower drive capability; not rated for automotive temperature range | Select when ultra-low IQ dominates over load current and extended temp range requirements. |
| REF5025IDR | ±0.05% initial accuracy, 3ppm/°C max TCVOUT, 10mA max output, 950µA quiescent current | Higher precision and lower drift, but higher power and SOIC-8 packaging | Select when sub-10ppm/°C drift and ±0.05% accuracy justify larger footprint and higher supply current. |
Compared with ADR3425BRJZ-R7 and REF5025IDR, the MAX6033BAUT25 uniquely balances automotive-grade temperature operation, 15mA sourcing capability, and ultra-low 40µA quiescent current in a miniature SOT23-6 package-making it optimal for space- and power-constrained embedded systems requiring robustness without sacrificing precision.
Availability
MAX6033BAUT25 is available at Aetrix Electronics and suitable for high-accuracy industrial control, automotive sensor conditioning, and portable test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6033BAUT25 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 family was engineered specifically for ultra-stable, low-drift voltage references in high-resolution data conversion systems-emphasizing force-sense architecture, wide supply range, and automotive qualification.
FAQ
What is the guaranteed temperature coefficient specification for MAX6033BAUT25?
The MAX6033BAUT25 has a maximum temperature coefficient of 15ppm/°C over the full automotive temperature range of −40°C to +125°C. This value is production-tested and guaranteed per the datasheet's Electrical Characteristics table, ensuring predictable output drift in harsh thermal environments where the MAX6033BAUT25 is deployed.
Does MAX6033BAUT25 require external capacitors for stability?
Yes, the MAX6033BAUT25 requires a minimum 0.1µF ceramic capacitor between IN and GND for optimal line-transient performance, and a 0.1µF capacitor between OUTF and GND. It remains stable with output capacitance ranging from 0.1µF to 100µF, enabling flexible layout and transient response tuning without risk of oscillation.
How does the force-sense (OUTF/OUTS) architecture improve accuracy in MAX6033BAUT25?
The MAX6033BAUT25's OUTF pin delivers load current while OUTS senses voltage at the load point. By shorting OUTF to OUTS near the device, the internal amplifier regulates based on the true load voltage-not the voltage at the IC pad-eliminating errors from PCB trace resistance. This yields 0.001mV/mA load regulation, critical for remote-sensing applications.
What is the maximum output current capability of MAX6033BAUT25?
The MAX6033BAUT25 is specified to source up to 15mA continuously while maintaining output accuracy within datasheet limits. This capability supports direct driving of ADC reference inputs, op-amp bias networks, and moderate-current precision current sources without external buffering-reducing bill-of-materials count in compact designs.
Is MAX6033BAUT25 qualified for automotive applications?
Yes, MAX6033BAUT25 is explicitly rated and tested for the automotive temperature range of −40°C to +125°C, and its ordering part number suffix "#TG16" denotes RoHS-compliance with lead exemption per EU directive. It meets AEC-Q200 stress-test requirements for voltage references used in engine control, chassis, and body electronics.
MAX6033BAUT25 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- SOT-23-6
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 2.5V
- Voltage - Output (Max):
- -
- Current - Output:
- 15 mA
- Tolerance:
- ±0.2%
- Temperature Coefficient:
- 15ppm/°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-23-6
MAX6033BAUT25 FAQ
1.How can I place an order for MAX6033BAUT25 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6033BAUT25 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 MAX6033BAUT25 reliable?
The price and inventory of MAX6033BAUT25 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6033BAUT25 is usually 5 days.
3.What payment methods are accepted for MAX6033BAUT25?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6033BAUT25 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6033BAUT25?
MAX6033BAUT25 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6033BAUT25 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 MAX6033BAUT25?
For technical support, including MAX6033BAUT25 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6033BAUT25 requirements.
6.How does Aetrix verify that MAX6033BAUT25 is sourced from the original manufacturer or authorized distributors?
All MAX6033BAUT25 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 MAX6033BAUT25 meets industry standards.
7.What is the process for return or replacement of MAX6033BAUT25?
All MAX6033BAUT25 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6033BAUT25, 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 MAX6033BAUT25 part is unused and in its original packaging.
Return procedure for MAX6033BAUT25:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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