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Analog Devices Inc./Maxim Integrated MAX6071AAUT33+T
- Part No.:
- MAX6071AAUT33+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- SOT-23-6
- Datasheet:
-
MAX6071AAUT33+T.pdf
- Description:
- IC VREF SERIES 0.04% SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,310
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Product details
Overview
MAX6071AAUT33+T from Analog Devices is a precision 3.3V 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 9.6µVP-P 1/f noise (0.1Hz–10Hz) - enabling high-resolution ADC/DAC biasing in industrial process control systems.
For engineers reviewing the MAX6071AAUT33+T datasheet, MAX6071AAUT33+T pinout, MAX6071AAUT33+T application, or MAX6071AAUT33+T equivalent, key selection criteria include its 150µA quiescent current, 150mV dropout at 10mA load, 80dB ripple rejection at 60Hz, and dual-force/sense output architecture for remote sensing accuracy.
Technical Context
The MAX6071AAUT33+T implements a bandgap-based series voltage reference with force-sense output topology: OUTF delivers regulated 3.3V to the load, while OUTS provides feedback to internal error amplification, minimizing IR-drop errors in PCB traces. It features an enable input (EN) with logic-compatible thresholds (VIH = 0.7×VIN, VIL = 0.3×VIN) and operates across –40°C to +125°C.
Unlike the filter-capable MAX6070, the MAX6071 omits the FILTER pin and uses a simplified 6-pin SOT23 layout (EN, GNDF, IN, OUTF, OUTS, GNDS). Its thermal hysteresis is 85ppm, long-term stability is 35ppm/1000h, and it achieves 40µs turn-on settling time to 0.01% with 0.1µF output capacitance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.300V ±0.04% at +25°C - ensures stable reference for 12-/16-bit SAR ADCs without calibration. |
| Temp Drift (max) | 6ppm/°C (A grade) - contributes ≤±0.8mV error over –40°C to +125°C ambient range. |
| Noise (0.1–10Hz) | 9.6µVP-P - preserves SNR in precision instrumentation front-ends. |
| Dropout Voltage | 75–150mV at 10mA - allows operation from 3.4V supply in low-voltage industrial rails. |
| Supply Current | 150µA typical at +25°C - enables battery-backed sensor nodes with multi-year runtime. |
| Ripple Rejection | 80dB at 60Hz - suppresses power-supply coupling into analog signal chains. |
| Load Current | ±10mA sourcing/sinking - supports direct driving of ADC reference inputs and op-amp bias networks. |
Pinout & Package
Package: 6-pin SOT23 (package code U6+5), 2.9mm × 1.6mm footprint, JEDEC MS-012 compliant. Thermal resistance θJA = 230°C/W on multilayer board.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - EN | Enable control input | Active-high logic interface; 1µA max input current enables low-power sequencing. |
| 2 - GNDF | Force ground | Provides dedicated return path for OUTF current; minimizes ground bounce in noisy environments. |
| 3 - IN | Supply input | Accepts 4.3V–5.5V input; internal regulation rejects supply ripple up to 80dB. |
| 4 - OUTF | Force output | Delivers 3.3V to load; bypassed externally with 0.1–10µF capacitor for stability. |
| 5 - OUTS | Sense output | Connects to load-side ground; closes feedback loop to correct trace voltage drop. |
| 6 - GNDS | Sense ground | Reference point for OUTS; must tie to same node as load ground for accurate sensing. |
Key Features
| Feature | Design Value |
|---|---|
| Force-sense output architecture | Compensates for PCB trace resistance up to 100mΩ, maintaining ±0.01% reference accuracy at remote loads. |
| AEC-Q100 qualified | Rated for automotive applications (Grade 1: –40°C to +125°C), supporting under-hood sensor modules. |
| Low 150µA quiescent current | Reduces self-heating to <0.1°C, preserving temperature coefficient performance in sealed enclosures. |
| Capacitive-load stability | Stable with 0.1–10µF ceramic output capacitors - eliminates need for external compensation networks. |
| High PSRR (80dB @ 60Hz) | Rejects switching regulator ripple and mains-borne noise without additional LC filtering. |
Applications
| Industrial Process Transmitters | Precision Data Acquisition Systems |
|---|---|
|
Use Scenario: 4–20mA loop-powered pressure/temperature transmitters operating in harsh factory environments. IC Role / Device Role / Timing Role: Provides stable 3.3V reference for sigma-delta ADC and DAC in analog front-end. Use Value: ±0.04% initial accuracy and 6ppm/°C drift ensure <0.1% total error over full temperature range without field recalibration. |
Use Scenario: Portable handheld multimeters and benchtop DMMs requiring >6½-digit resolution. IC Role / Device Role / Timing Role: Supplies low-noise reference to 24-bit delta-sigma ADC and internal DAC for auto-zeroing. Use Value: 9.6µVP-P 1/f noise prevents quantization floor elevation, preserving effective resolution. |
| Automotive Battery Monitoring Units | Medical Patient Monitoring Sensors |
|
Use Scenario: High-voltage EV battery cell voltage monitoring modules inside battery management systems (BMS). IC Role / Device Role / Timing Role: Reference source for isolated ADC measuring individual Li-ion cell voltages (2.5–4.3V range). Use Value: AEC-Q100 qualification and 125°C operation guarantee reliability in underhood thermal cycling. |
Use Scenario: Wearable ECG/EEG sensors with ultra-low-power requirements and clinical-grade accuracy. IC Role / Device Role / Timing Role: Bias reference for instrumentation amplifier and ADC in analog signal chain. Use Value: 150µA supply current extends coin-cell battery life beyond 2 years while maintaining µV-level stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF3333AIDBVR | 3.3V, ±0.1% initial accuracy, 10ppm/°C max drift, no force-sense outputs, 3.8µVP-P noise. | Lacks remote sensing; suitable only for local reference use with short PCB traces. | Choose when board space is constrained and load is adjacent to IC; not recommended for >5cm trace lengths. |
| ADR3433ARJZ-R7 | 3.3V, ±0.1% initial accuracy, 10ppm/°C max drift, force-sense outputs, 12µVP-P noise, 180µA IQ. | Higher noise and supply current; wider temp range (–40°C to +125°C) but no AEC-Q100 rating. | Prefer when AEC-Q100 is not required and higher noise tolerance exists; verify thermal derating at 125°C. |
Compared with REF3333AIDBVR and ADR3433ARJZ-R7, the MAX6071AAUT33+T uniquely combines AEC-Q100 qualification, force-sense architecture, and sub-10µVP-P noise - making it the only option that simultaneously satisfies automotive BMS accuracy, remote sensing, and low-noise medical sensing requirements.
Availability
MAX6071AAUT33+T is available at Aetrix Electronics and suitable for industrial process transmitters, precision data acquisition systems, and automotive battery monitoring units requiring stable component supply with guaranteed long-term availability.
Supply support for MAX6071AAUT33+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 since 1965.
The MAX6070/MAX6071 family was designed specifically for high-accuracy, low-noise voltage referencing in precision measurement systems where thermal stability, long-term drift, and supply ripple rejection are critical.
FAQ
What is the maximum input voltage for the MAX6071AAUT33+T?
The MAX6071AAUT33+T supports a supply input voltage range of 4.3V to 5.5V, as specified in the Electrical Characteristics table for the 3.3V output variant. Operation below 4.3V may cause dropout or regulation loss; exceeding 5.5V risks permanent damage per Absolute Maximum Ratings.
Does the MAX6071AAUT33+T require an external filter capacitor like the MAX6070?
No - the MAX6071AAUT33+T does not include a FILTER pin and has no provision for external high-frequency noise filtering. Unlike the MAX6070, it relies on internal design and output bypassing (0.1–10µF on OUTF) for noise suppression. The absence of the FILTER pin simplifies layout but removes the option for enhanced wideband noise reduction.
Can the MAX6071AAUT33+T be used in AEC-Q100 automotive applications?
Yes - the MAX6071AAUT33+T is explicitly AEC-Q100 qualified (Grade 1: –40°C to +125°C), as confirmed in the Benefits and Features section of the datasheet. This certification validates its reliability for automotive battery monitoring, engine control, and ADAS sensor modules under extended thermal and vibration stress.
How does the force-sense output configuration improve accuracy in the MAX6071AAUT33+T?
The MAX6071AAUT33+T uses separate OUTF (force) and OUTS (sense) pins to close the regulation loop at the load rather than at the IC package. This compensates for voltage drop across PCB traces or connectors - for example, a 100mΩ trace carrying 10mA introduces only 1mV error instead of 10mV - preserving reference accuracy at the point of use.
What is the typical settling time for the MAX6071AAUT33+T after enable assertion?
The MAX6071AAUT33+T achieves 0.01% output settling in 75µs when enabled, as measured with 0.1µF output capacitance and VIN = 5V. This fast enable response supports power-gated architectures in portable instrumentation and battery-operated sensors where rapid wake-up is essential.
MAX6071AAUT33+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):
- 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±0.04%
- Temperature Coefficient:
- 6ppm/°C
- Noise - 0.1Hz to 10Hz:
- 10µVp-p
- Noise - 10Hz to 10kHz:
- 9µVrms
- Voltage - Input:
- 3.5V ~ 5.5V
- Current - Supply:
- 330µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX6071AAUT33+T FAQ
1.How can I place an order for MAX6071AAUT33+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6071AAUT33+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 MAX6071AAUT33+T reliable?
The price and inventory of MAX6071AAUT33+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6071AAUT33+T is usually 5 days.
3.What payment methods are accepted for MAX6071AAUT33+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6071AAUT33+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6071AAUT33+T?
MAX6071AAUT33+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6071AAUT33+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 MAX6071AAUT33+T?
For technical support, including MAX6071AAUT33+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6071AAUT33+T requirements.
6.How does Aetrix verify that MAX6071AAUT33+T is sourced from the original manufacturer or authorized distributors?
All MAX6071AAUT33+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 MAX6071AAUT33+T meets industry standards.
7.What is the process for return or replacement of MAX6071AAUT33+T?
All MAX6071AAUT33+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6071AAUT33+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 MAX6071AAUT33+T part is unused and in its original packaging.
Return procedure for MAX6071AAUT33+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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