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Analog Devices Inc./Maxim Integrated MAX6071AAUT30+
- Part No.:
- MAX6071AAUT30+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- SOT-23-6
- Datasheet:
-
MAX6071AAUT30+.pdf
- Description:
- IC VREF SERIES 0.04% SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,231
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Product details
Overview
The MAX6071AAUT30+ from Analog Devices is a precision 3.0V low-noise, low-drift series voltage reference in a 6-pin SOT23 package. It delivers ±0.04% initial accuracy, 6ppm/°C max temperature drift (A grade), 4.8µVP-P 0.1Hz–10Hz noise, and supports ±10mA load current - enabling high-accuracy ADC/DAC biasing in industrial process control systems.
For engineers reviewing the MAX6071AAUT30+ datasheet, MAX6071AAUT30+ pinout, MAX6071AAUT30+ application, or MAX6071AAUT30+ equivalent, key selection criteria include its 3.0V output, 150µA quiescent current, 150mV max dropout at 10mA, 84dB 60Hz ripple rejection, and AEC-Q100 qualification for automotive-grade reliability.
Technical Context
The MAX6071AAUT30+ implements a bandgap-based series voltage reference architecture with force-sense output topology (OUTF/GNDF and OUTS/GNDS) to reject PCB trace resistance errors. Its dual-ground structure isolates sensing and forcing paths, maintaining stability under varying load conditions and PCB layout parasitics.
Unlike the MAX6070, the MAX6071 omits the FILTER pin and associated internal RC network, resulting in faster turn-on settling (30µs vs. 6ms) and higher wideband thermal noise (9µVRMS, 10Hz–10kHz), making it optimized for speed-critical precision applications where external filtering is managed externally.
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 without calibration. |
| Temp Drift (max) | 6ppm/°C (A grade) - limits full-scale error to ≤±75ppm over –40°C to +125°C industrial range. |
| Noise (0.1–10Hz) | 4.8µVP-P - enables <18-bit effective resolution in 100ksps precision data acquisition. |
| Quiescent Current | 150µA typical - allows battery-powered instrumentation to operate >1 year on a CR2032 cell. |
| Dropout Voltage | 150mV max at 10mA - supports operation from 3.15V supply, compatible with LDOs and buck converters. |
| Ripple Rejection | 84dB at 60Hz - suppresses power-supply hum to <0.04% of reference output amplitude. |
| Load Current | ±10mA - drives 10-bit DACs, op-amp buffers, and multiple SAR ADC references simultaneously. |
Pinout & Package
Package: 6-pin SOT23 (U6+5/U6+5A), 2.9mm × 1.6mm footprint, 1.45mm height, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - GNDF | Ground Force | Return path for OUTF; must be connected to local ground near load to close force loop. |
| 2 - GNDS | Ground Sense | Sense return for OUTS; connects to load ground to enable Kelvin sensing and eliminate trace IR drop. |
| 3 - EN | Enable Input | Active-high logic control (VIH = 0.7×VIN); enables shutdown mode drawing only 0.6µA. |
| 4 - IN | Supply Input | Accepts 3.5V to 5.5V input; internal regulation maintains stable 3.0V output independent of VIN variation. |
| 5 - OUTS | Voltage Reference Sense Output | High-impedance sense node; connects directly to ADC REF+ or op-amp non-inverting input. |
| 6 - OUTF | Voltage Reference Force Output | Low-impedance drive node; bypassed with 0.1µF–10µF capacitor to GNDF for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Force-Sense Output Architecture | Eliminates voltage error from PCB trace resistance up to 100mΩ between reference and load. |
| AEC-Q100 Qualified | Validated for automotive applications including engine control modules and ADAS sensor interfaces. |
| Ultra-Low 1/f Noise | 4.8µVP-P (0.1–10Hz) enables sub-20ppm measurement repeatability in weigh scales and strain gauges. |
| Fast Enable Settling | 75µs to 0.01% with 0.1µF output cap - supports burst-mode data acquisition with minimal dead time. |
| Wide Temperature Range | Specified from –40°C to +125°C - operates reliably in industrial motor drives and outdoor telecom equipment. |
Applications
| High-Accuracy Industrial Process Control | Precision Instrumentation |
|---|---|
Use Scenario: 4–20mA loop-powered transmitter conditioning analog front-end with 16-bit ΣΔ ADC. IC Role / Device Role / Timing Role: Provides stable 3.0V reference for ADC and DAC in isolated signal chain. Use Value: 6ppm/°C drift ensures <±0.01% full-scale error over ambient temperature swings in factory-floor environments. | Use Scenario: Portable handheld multimeter with auto-ranging and true RMS conversion. IC Role / Device Role / Timing Role: Supplies reference voltage to dual-slope integrator and display driver DAC. Use Value: 4.8µVP-P low-frequency noise prevents digit flicker and improves 4½-digit resolution stability. |
| High-Resolution ADCs and DACs | Automotive Sensor Signal Conditioning |
Use Scenario: 24-bit medical ECG data acquisition system sampling at 2ksps. IC Role / Device Role / Timing Role: Precision reference for PGA and successive-approximation ADC. Use Value: ±10mA sourcing/sinking capability drives anti-aliasing filter op-amps without gain error. | Use Scenario: Battery management system (BMS) cell voltage monitoring in EV traction packs. IC Role / Device Role / Timing Role: Stable 3.0V reference for 16-bit SAR ADC measuring 0–5V cell voltages. Use Value: AEC-Q100 qualification and –40°C to +125°C operation ensure compliance with ISO 26262 ASIL-B requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6070AAUT30+ | Includes FILTER pin and internal RC network; 6ms turn-on settling; lower 10Hz–10kHz noise (6µVRMS). | Better suited for wideband noise-sensitive applications where external filtering is impractical. | Select MAX6070AAUT30+ when 10Hz–10kHz noise dominates system error budget and slower wake-up is acceptable. |
| ADR4530BRZ | 3.0V output, 3ppm/°C max drift, 1.2µVP-P noise (0.1–10Hz), but 1.2mA quiescent current and SOIC-8 package. | Higher accuracy and lower noise, but incompatible with space-constrained SOT23 layouts and battery-powered designs. | Choose ADR4530BRZ only when ultimate long-term stability (<15ppm/1000h) and ultra-low noise outweigh size and power constraints. |
Compared with MAX6070AAUT30+, the MAX6071AAUT30+ trades filter flexibility for 200× faster enable response and smaller footprint; versus ADR4530BRZ, it sacrifices 2ppm/°C drift and 3.6µVP-P noise to achieve 8× lower supply current and 60% smaller board area.
Availability
MAX6071AAUT30+ is available at Aetrix Electronics and suitable for high-accuracy industrial process control, precision instrumentation, and automotive sensor signal conditioning requiring stable component supply across extended temperature ranges.
Supply support for MAX6071AAUT30+ 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 MAX6070/MAX6071 family delivers low-noise, low-drift voltage references optimized for high-resolution data conversion in harsh environments - targeting applications demanding AEC-Q100 qualification and extended temperature operation.
FAQ
What is the maximum allowable input voltage for the MAX6071AAUT30+?
The MAX6071AAUT30+ supports an input voltage range of 3.5V to 5.5V, with absolute maximum rating of +6V on the IN pin. Operation above 5.5V violates specifications and may degrade long-term stability or cause permanent damage. The device's 150mV dropout ensures reliable 3.0V output regulation down to 3.15V input.
Does the MAX6071AAUT30+ require an external capacitor on the OUTF pin?
Yes, the MAX6071AAUT30+ requires a 0.1µF to 10µF ceramic capacitor between OUTF and GNDF for stability. This capacitor mitigates high-frequency oscillation caused by load capacitance and PCB parasitics. Omitting it risks output instability, especially when driving capacitive loads >100pF or long PCB traces.
How does the force-sense architecture of the MAX6071AAUT30+ improve accuracy?
The MAX6071AAUT30+ uses separate OUTF/GNDF (force) and OUTS/GNDS (sense) terminals to eliminate voltage drop errors from PCB trace resistance. By routing the sense path directly to the load, the internal amplifier adjusts OUTF to maintain exact 3.0V at the load point - compensating for up to 100mΩ of series resistance without calibration.
Is the MAX6071AAUT30+ pin-compatible with earlier MAX6000-series references?
No, the MAX6071AAUT30+ is not pin-compatible with MAX6000-series devices. Its 6-pin SOT23 pinout (GNDF/GNDS/EN/IN/OUTS/OUTF) differs fundamentally from legacy 5-pin or 8-pin packages. Layout redesign is required; migration requires verification of enable logic, ground separation, and capacitor placement per the MAX6071AAUT30+ datasheet.
What is the shutdown current consumption of the MAX6071AAUT30+?
In shutdown mode (EN = low), the MAX6071AAUT30+ draws only 0.6µA to 6µA over temperature, enabling ultra-low-power sleep states in portable instrumentation. This is measured with VIN applied and all outputs unloaded; leakage through OUTF/OUTS pins remains negligible due to internal isolation during disable.
MAX6071AAUT30+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- SOT-23-6
- Series:
- -
- Packaging:
- Tube
- 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+ FAQ
1.How can I place an order for MAX6071AAUT30+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6071AAUT30+ 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+ reliable?
The price and inventory of MAX6071AAUT30+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6071AAUT30+ is usually 5 days.
3.What payment methods are accepted for MAX6071AAUT30+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6071AAUT30+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6071AAUT30+?
MAX6071AAUT30+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6071AAUT30+ 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+?
For technical support, including MAX6071AAUT30+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6071AAUT30+ requirements.
6.How does Aetrix verify that MAX6071AAUT30+ is sourced from the original manufacturer or authorized distributors?
All MAX6071AAUT30+ 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+ meets industry standards.
7.What is the process for return or replacement of MAX6071AAUT30+?
All MAX6071AAUT30+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6071AAUT30+, 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+ part is unused and in its original packaging.
Return procedure for MAX6071AAUT30+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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