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Analog Devices Inc./Maxim Integrated MAX6033CAUT25-T
- Part No.:
- MAX6033CAUT25-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- SOT-23-6
- Datasheet:
-
MAX6033CAUT25-T.pdf
- Description:
- VOLTAGE REFERENCE
- Quantity:
- Payment:
- Shipping:
Inventory:194
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Product details
Overview
MAX6033CAUT25-T from Maxim Integrated is a high-precision, low-dropout series voltage reference IC delivering 2.500V output with ±0.10% initial accuracy, 40ppm/°C max temperature coefficient over –40°C to +125°C, and 200mV max dropout at 10mA load-designed for high-resolution ADC/DAC biasing in industrial process control and handheld instrumentation.
For engineers reviewing the MAX6033CAUT25-T datasheet, MAX6033CAUT25-T pinout, MAX6033CAUT25-T application, or MAX6033CAUT25-T equivalent, key selection criteria include guaranteed automotive-grade temperature stability, ultra-low 40µA quiescent current, stable operation with 0.1µF–100µF capacitive loads, and dual-output force/sense architecture enabling precision current sourcing and minimized layout-induced errors.
Technical Context
The MAX6033CAUT25-T employs bandgap-based series topology with laser-trimmed thin-film resistors and post-package trimming to achieve ±0.10% initial accuracy and 40ppm/°C max TCVOUT across –40°C to +125°C. Its force (OUTF) and sense (OUTS) outputs decouple load regulation from PCB trace resistance, enabling sub-0.1mV/mA load regulation performance.
This device operates from 2.7V to 12.6V input, maintains 16µVP-P (0.1Hz–10Hz) noise at 2.5V output, and achieves <500µs turn-on settling to ±0.01%-all while consuming only 40µA typical supply current and supporting up to 15mA source capability without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.500V ±0.0025V at +25°C - enables direct interface with 2.5V-reference ADCs/DACs without scaling. |
| Initial Accuracy | ±0.10% - reduces system calibration burden in high-accuracy measurement front-ends. |
| Temp Coefficient | 40ppm/°C max (–40°C to +125°C) - ensures ≤100ppm total drift across full automotive range. |
| Dropout Voltage | 200mV max at 10mA - allows operation from 2.7V supply while maintaining regulation for low-voltage systems. |
| Quiescent Current | 40µA typical - extends battery life in portable instruments and enables always-on sensing nodes. |
| Noise (0.1–10Hz) | 16µVP-P - preserves ENOB in 16-bit+ ADC conversions without additional filtering. |
| Load Regulation | 0.001mV/mA - minimizes output shift under dynamic load changes in precision DAC buffers. |
Pinout & Package
MAX6033CAUT25-T is housed in a RoHS-compliant 6-pin SOT23 package (U6F-6 outline), with 1.6mm × 2.9mm footprint and 0.95mm height-compatible with standard SMT reflow profiles and space-constrained PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3 | I.C. (Internally Connected) | Not usable externally; internal connection only-must remain unconnected on PCB. |
| 2 | GND | Reference ground return path; requires low-impedance connection to system AGND plane. |
| 4 | IN | Positive supply input (2.7V–12.6V); bypass with ≥0.1µF ceramic capacitor placed adjacent to pin. |
| 5 | OUTF | Force output-sources up to 15mA; connects to load or current-sink transistor base; bypass to GND with 0.1µF min. |
| 6 | OUTS | Sense input-monitors voltage at load; must be shorted to OUTF near device to eliminate trace IR drop. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-force/sense outputs | Enables Kelvin sensing to reject PCB trace resistance effects-critical for <0.01% accuracy in remote loads. |
| Stable with 0.1µF–100µF capacitive loads | Eliminates need for external compensation; supports both ceramic and bulk electrolytic output capacitance. |
| Low 16µVP-P noise (0.1–10Hz) | Preserves signal integrity in 16-bit+ data acquisition-no added filtering required for DC-coupled sensors. |
| Automotive temperature range | Rated –40°C to +125°C with full parametric guarantee-suitable for under-hood and industrial control applications. |
| 40µA quiescent current | Reduces power loss in battery-powered devices; enables >10-year operation on coin-cell batteries in low-duty-cycle systems. |
Applications
| Industrial Process Transmitter | Portable Multimeter Front-End |
|---|---|
Use Scenario: High-accuracy 4–20mA loop-powered transmitter measuring pressure/temperature with 0.1% FS error budget. IC Role / Device Role / Timing Role: Precision 2.5V reference for 16-bit SAR ADC and DAC used in sensor linearization and analog output generation. Use Value: ±0.10% initial accuracy and 40ppm/°C TCVOUT ensure calibration holds over field temperature extremes without recalibration. |
Use Scenario: Handheld digital multimeter requiring stable reference for autoranging DCV/Ohms measurements across 0.1mV–1000V ranges. IC Role / Device Role / Timing Role: Primary voltage reference for dual-slope and sigma-delta converters; supplies bias to input attenuator and gain stages. Use Value: 16µVP-P low-frequency noise prevents digitization artifacts in sub-microvolt resolution modes. |
| Hard-Disk Drive Servo Controller | Medical Patient Monitor Analog Front-End |
Use Scenario: Closed-loop voice-coil motor positioning in HDD actuator arms, demanding micro-radian angular stability. IC Role / Device Role / Timing Role: Reference for high-speed 12-bit DAC driving coil driver amplifiers; also biases precision op-amps in feedback path. Use Value: 200mV dropout enables operation from 3.3V rail while maintaining regulation during transient current spikes up to 15mA. |
Use Scenario: ECG/EEG analog front-end requiring low-noise, low-drift reference for 24-bit delta-sigma ADCs and programmable gain instrumentation amps. IC Role / Device Role / Timing Role: Master reference for signal chain-powers ADC reference input, PGA bias, and anti-alias filter cutoff setting. Use Value: Force/sense architecture eliminates PCB trace resistance impact on reference voltage delivered to ADC REF pin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF3025AIDBZR | 2.5V, ±0.2% initial accuracy, 50ppm/°C, 50µA IQ, SOT23-3 | Lacks force/sense outputs; single-output architecture limits remote-load accuracy | Select when board space is constrained and load regulation <0.01mV/mA is not required. |
| ADR3425ARJZ-R7 | 2.5V, ±0.1% initial accuracy, 10ppm/°C, 120µA IQ, SOT23-5 | Lower TCVOUT but higher quiescent current; no OUTF/OUTS separation | Prefer for ultra-stable lab equipment where power is not limited and layout parasitics are minimal. |
Compared with REF3025AIDBZR and ADR3425ARJZ-R7, the MAX6033CAUT25-T uniquely combines automotive-grade temperature stability, ultra-low quiescent current, and force/sense architecture-making it optimal for battery-powered industrial transmitters and portable test equipment where layout-induced errors must be eliminated.
Availability
MAX6033CAUT25-T is available at Aetrix Electronics and suitable for industrial process control, handheld instrumentation, and automotive subsystems requiring stable component supply with guaranteed long-term availability and full automotive temperature-range qualification.
Supply support for MAX6033CAUT25-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, medical, and automotive applications-with emphasis on low-power, high-accuracy performance.
The MAX6033 family was engineered specifically for high-resolution data conversion systems requiring ultra-stable, low-noise references in miniature packages-targeting applications where traditional shunt references waste power and series references lack force/sense accuracy.
FAQ
What is the guaranteed temperature coefficient specification for MAX6033CAUT25-T?
The MAX6033CAUT25-T is guaranteed to maintain ≤40ppm/°C temperature coefficient across the full –40°C to +125°C operating range, as confirmed in the Electrical Characteristics table for the MAX6033C grade. This value represents maximum drift over temperature-not typical or average-and applies to all units in production.
Can MAX6033CAUT25-T operate from a 2.7V supply while sourcing 15mA?
Yes-MAX6033CAUT25-T supports 2.7V minimum input voltage and delivers up to 15mA output current with ≤200mV dropout, meaning it regulates stably down to 2.5V output at 15mA load. At 2.7V input, headroom is 200mV, satisfying the max dropout spec under worst-case conditions.
How should the OUTF and OUTS pins be connected in a PCB layout?
OUTF and OUTS must be shorted together using a low-inductance, wide copper trace placed as close to the MAX6033CAUT25-T package as possible-ideally within 1mm. This minimizes parasitic resistance between force and sense paths, preserving the accuracy benefit of the dual-output architecture.
Is MAX6033CAUT25-T qualified for automotive applications?
Yes-MAX6033CAUT25-T is explicitly rated for the automotive temperature range (–40°C to +125°C) and appears in Maxim's automotive-grade ordering guide. All electrical parameters-including initial accuracy, TCVOUT, and dropout-are fully specified and guaranteed across this range.
What is the recommended output capacitance for MAX6033CAUT25-T?
The MAX6033CAUT25-T requires a minimum 0.1µF ceramic capacitor at the output for stability and is certified stable with up to 100µF total capacitive load-including combinations of ceramic and bulk electrolytic types-enabling flexible noise filtering without risk of oscillation.
MAX6033CAUT25-T 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):
- 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-T FAQ
1.How can I place an order for MAX6033CAUT25-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6033CAUT25-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 MAX6033CAUT25-T reliable?
The price and inventory of MAX6033CAUT25-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6033CAUT25-T is usually 5 days.
3.What payment methods are accepted for MAX6033CAUT25-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6033CAUT25-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6033CAUT25-T?
MAX6033CAUT25-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6033CAUT25-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 MAX6033CAUT25-T?
For technical support, including MAX6033CAUT25-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6033CAUT25-T requirements.
6.How does Aetrix verify that MAX6033CAUT25-T is sourced from the original manufacturer or authorized distributors?
All MAX6033CAUT25-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 MAX6033CAUT25-T meets industry standards.
7.What is the process for return or replacement of MAX6033CAUT25-T?
All MAX6033CAUT25-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6033CAUT25-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 MAX6033CAUT25-T part is unused and in its original packaging.
Return procedure for MAX6033CAUT25-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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