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Analog Devices Inc./Maxim Integrated MAX6071AAUT30+T
- Part No.:
- MAX6071AAUT30+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- SOT-23-6
- Datasheet:
-
MAX6071AAUT30+T.pdf
- Description:
- IC VREF SERIES 0.04% SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:6,992
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Product details
Overview
MAX6071AAUT30+T from Analog Devices is a precision 3.0V series voltage reference IC in a 6-pin SOT23 package, delivering ±0.04% initial accuracy, 6ppm/°C max temperature drift (A grade), and ultra-low 10µVP-P 1/f noise (0.1Hz–10Hz). It sources/sinks ±10mA, operates from 3.5V to 5.5V input, and targets high-accuracy industrial sensor signal chains and 16-bit+ ADC biasing.
For engineers reviewing the MAX6071AAUT30+T datasheet, MAX6071AAUT30+T pinout, MAX6071AAUT30+T application, or MAX6071AAUT30+T equivalent, key selection criteria include its 3.0V output stability over –40°C to +125°C, 150µA quiescent current, 150mV max dropout at 10mA, and dual-output force-sense architecture for load regulation integrity.
Technical Context
The MAX6071AAUT30+T implements a bandgap-based series voltage reference with separate force (OUTF) and sense (OUTS) outputs, enabling Kelvin sensing to reject PCB trace resistance effects. Its internal architecture includes low-noise amplification and thermal compensation optimized for minimal 1/f and broadband noise across the full industrial temperature range.
Unlike the filter-capable MAX6070 variant, the MAX6071AAUT30+T omits the FILTER pin and uses a simplified 6-pin SOT23 configuration (EN, GNDF, IN, OUTF, OUTS, GNDS), supporting fast 42µs turn-on settling and 75µs enable settling-critical for power-gated precision systems requiring rapid reference stabilization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.000V ±0.04% at +25°C - ensures direct compatibility with 3.0V ADC reference inputs and eliminates calibration offset in factory-trimmed systems. |
| Temp Drift (max) | 6ppm/°C (A grade) - guarantees ≤180ppm total drift over –40°C to +125°C, enabling <0.02% full-scale error in temperature-varying instrumentation. |
| Noise (0.1–10Hz) | 10µVP-P - limits RMS noise contribution to <3.5µV in 16-bit (≈90dB SNR) data acquisition front-ends. |
| Supply Current | 150µA typical at +25°C - supports battery-powered portable meters with multi-year runtime on coin cells. |
| Dropout Voltage | 150mV max at 10mA load - allows operation from 3.15V rails, compatible with single-cell LiFePO₄ or regulated 3.3V supplies. |
| Load Current | ±10mA sourcing/sinking - drives 300Ω loads directly (e.g., op-amp bias networks or DAC reference inputs) without external buffers. |
| Operating Temp | –40°C to +125°C - qualified for under-hood automotive and industrial PLC modules without derating. |
Pinout & Package
Package: 6-pin SOT23 (U6+5/U6+5A), 2.9mm × 1.6mm footprint, 0.95mm height, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - EN | Enable control input | Active-high logic; 0.7×VIN threshold enables fast power sequencing and low-power sleep modes (6µA shutdown current). |
| 2 - GNDF | Force ground reference | Provides dedicated return path for OUTF, isolating reference output current from noisy system ground planes. |
| 3 - IN | Supply input | Accepts 3.5V–5.5V; internal LDO regulation ensures stable reference despite input ripple up to 80dB PSRR at 60Hz. |
| 4 - OUTF | Force output | Delivers regulated 3.0V to load; bypassed externally with 0.1–10µF capacitor to suppress high-frequency noise. |
| 5 - OUTS | Sense output | Feedback node connected directly to load ground; enables remote sensing to cancel trace IR drop and maintain accuracy. |
| 6 - GNDS | Sense ground | Return path for OUTS; must be tied to load ground point, not shared with GNDF or system GND to preserve Kelvin sensing integrity. |
Key Features
| Feature | Design Value |
|---|---|
| Force-sense output architecture | Eliminates voltage error from PCB trace resistance up to 100mΩ, maintaining ±0.04% accuracy at the load point. |
| Ultra-low 1/f noise | 10µVP-P (0.1–10Hz) enables sub-18-bit effective resolution in precision weigh scales and strain gauge bridges. |
| AEC-Q100 qualified | Grade 1 (–40°C to +125°C) qualification confirms reliability for automotive cabin and chassis control modules. |
| High PSRR | 80dB at 60Hz rejects line-frequency interference in AC-powered test equipment and industrial HMIs. |
| Fast enable settling | 75µs to 0.01% ensures reference stability before first ADC conversion in wake-from-sleep data loggers. |
Applications
| High-Accuracy Industrial Sensors | Precision Data Acquisition Systems |
|---|---|
Use Scenario: Monitoring pressure transducers in oil & gas pipeline SCADA systems with ambient temperature swings from –40°C to +85°C. IC Role / Device Role / Timing Role: Provides stable 3.0V excitation and ADC reference for ratiometric measurements, compensating for sensor bridge drift. Use Value: 6ppm/°C drift and 10µVP-P noise limit measurement uncertainty to <0.01% FS over full temperature range. | Use Scenario: 16-bit simultaneous-sampling ADC module in automated test equipment requiring synchronized channel references. IC Role / Device Role / Timing Role: Supplies low-noise, force-sensed 3.0V reference to multiple ADCs via star topology to prevent crosstalk-induced gain errors. Use Value: Dual OUTF/OUTS outputs eliminate trace-resistance-induced channel-to-channel mismatch (<0.005% error). |
| Automotive Cabin Control Units | Portable Medical Instrumentation |
Use Scenario: Temperature-compensated humidity sensing in HVAC control modules mounted near vehicle dashboards. IC Role / Device Role / Timing Role: Biasing analog front-end of capacitive humidity sensor while surviving automotive load-dump transients. Use Value: AEC-Q100 Grade 1 rating and 150mV dropout ensure reliable operation during 12V battery fluctuations down to 9V. | Use Scenario: Battery-powered ECG monitor requiring >100dB SNR and 24-hour runtime on a single CR2032 cell. IC Role / Device Role / Timing Role: Low-power 3.0V reference for analog signal conditioning and 24-bit sigma-delta ADC. Use Value: 150µA supply current extends battery life; 10µVP-P noise preserves diagnostic-grade waveform fidelity. |
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 drift, no force-sense outputs, 50µA IQ | Lacks Kelvin sensing; suitable only for low-current, PCB-localized references where trace resistance <10mΩ | Select when cost sensitivity outweighs accuracy requirements and layout allows direct load connection to reference pin. |
| ADR3430ARJZ-R7 | 3.0V, ±0.1% initial accuracy, 10ppm/°C drift, force-sense outputs, 120µA IQ | Higher drift than MAX6071AAUT30+T but same architecture; requires larger 8-pin SOT23-8 package | Choose when needing ADR34xx family compatibility or tighter initial tolerance (±0.1%) with acceptable 10ppm/°C drift trade-off. |
Compared with REF3030AIDBZR and ADR3430ARJZ-R7, the MAX6071AAUT30+T delivers superior temperature stability (6ppm/°C vs. 50/10ppm/°C) and integrated force-sense capability in the smallest 6-pin SOT23 footprint-making it optimal for space-constrained, high-accuracy industrial and automotive designs where long-term drift and layout-induced errors must be minimized.
Availability
MAX6071AAUT30+T is available at Aetrix Electronics and suitable for high-accuracy industrial sensors, precision data acquisition systems, and automotive cabin control units requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6071AAUT30+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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The MAX6071AAUT30+T belongs to Analog Devices' MAX6070/MAX6071 low-noise, high-precision series voltage reference product line, engineered specifically for applications demanding sub-0.05% accuracy, ultra-low noise, and robust operation across –40°C to +125°C.
FAQ
What is the maximum load current supported by the MAX6071AAUT30+T?
The MAX6071AAUT30+T supports ±10mA of load current-both sourcing and sinking-while maintaining output voltage regulation within specifications. This capability allows direct driving of moderate-impedance loads such as op-amp bias networks, DAC reference inputs, or small sensor excitation circuits without external buffering. At 10mA sink, dropout remains ≤150mV, ensuring stable operation even with marginal input headroom.
Does the MAX6071AAUT30+T require an external filter capacitor?
No, the MAX6071AAUT30+T does not have a FILTER pin and does not require an external filter capacitor for basic operation. However, a 0.1µF to 10µF ceramic capacitor is mandatory between OUTF and GNDF to ensure stability and reduce high-frequency noise. Unlike the MAX6070, the MAX6071AAUT30+T lacks the dedicated filter path, so noise suppression relies entirely on proper OUTF bypassing and PCB layout.
How does the force-sense architecture of the MAX6071AAUT30+T improve accuracy?
The MAX6071AAUT30+T uses separate OUTF (force) and OUTS (sense) pins to implement Kelvin sensing: OUTF delivers current to the load, while OUTS provides feedback from the load's ground point. This configuration cancels voltage drops across PCB traces and interconnects, preserving the ±0.04% initial accuracy at the actual load location-even with trace resistances up to 100mΩ. It is essential to route OUTS and GNDS directly to the load ground, independent of GNDF.
Is the MAX6071AAUT30+T suitable for automotive applications?
Yes, the MAX6071AAUT30+T is AEC-Q100 qualified (Grade 1) for operation from –40°C to +125°C and designed for automotive cabin and chassis control modules. Its 6ppm/°C max drift, 150mV dropout, and robust PSRR (80dB at 60Hz) ensure reliable performance during battery voltage transients, thermal cycling, and electromagnetic interference common in automotive environments-making it appropriate for HVAC sensors, body control units, and ADAS subsystems.
What is the typical supply current of the MAX6071AAUT30+T at room temperature?
The typical supply current of the MAX6071AAUT30+T is 150µA at +25°C, with a maximum of 240µA across the full operating temperature range (–40°C to +125°C). In shutdown mode (EN = low), current drops to ≤6µA. This ultra-low quiescent current enables use in energy-sensitive applications such as portable instrumentation, wireless sensor nodes, and battery-backed industrial monitors where multi-year operation is required.
MAX6071AAUT30+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:
- 10 mA
- Tolerance:
- ±0.04%
- Temperature Coefficient:
- 6ppm/°C
- Noise - 0.1Hz to 10Hz:
- 4.6µVp-p
- Noise - 10Hz to 10kHz:
- 7.8µVrms
- Voltage - Input:
- 3.2V ~ 5.5V
- Current - Supply:
- 300µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX6071AAUT30+T FAQ
1.How can I place an order for MAX6071AAUT30+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6071AAUT30+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 MAX6071AAUT30+T reliable?
The price and inventory of MAX6071AAUT30+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6071AAUT30+T is usually 5 days.
3.What payment methods are accepted for MAX6071AAUT30+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6071AAUT30+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6071AAUT30+T?
MAX6071AAUT30+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6071AAUT30+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 MAX6071AAUT30+T?
For technical support, including MAX6071AAUT30+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6071AAUT30+T requirements.
6.How does Aetrix verify that MAX6071AAUT30+T is sourced from the original manufacturer or authorized distributors?
All MAX6071AAUT30+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 MAX6071AAUT30+T meets industry standards.
7.What is the process for return or replacement of MAX6071AAUT30+T?
All MAX6071AAUT30+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6071AAUT30+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 MAX6071AAUT30+T part is unused and in its original packaging.
Return procedure for MAX6071AAUT30+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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