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Analog Devices Inc./Maxim Integrated MAX6071AAUT41+T
- Part No.:
- MAX6071AAUT41+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- SOT-23-6
- Datasheet:
-
MAX6071AAUT41+T.pdf
- Description:
- IC VREF SERIES 0.04% SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:3,828
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Product details
Overview
MAX6071AAUT41+T from Analog Devices is a precision 4.096V 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 4.8µVP-P (0.1Hz–10Hz) noise-enabling high-resolution ADC/DAC biasing in industrial process control systems.
For engineers reviewing the MAX6071AAUT41+T datasheet, MAX6071AAUT41+T pinout, MAX6071AAUT41+T application, or MAX6071AAUT41+T equivalent, key selection criteria include its 4.096V output matched to 12-bit/16-bit SAR ADC full-scale ranges, 150µA quiescent current for low-power sensor nodes, and force-sense architecture for load regulation stability under ±10mA sourcing/sinking.
Technical Context
The MAX6071AAUT41+T implements a bandgap-based series voltage reference with separate force (OUTF) and sense (OUTS) outputs, enabling Kelvin connection to reject PCB trace resistance effects. Its internal architecture supports operation from 4.3V to 5.5V input while maintaining 60–150mV dropout at 10mA load.
Unlike the MAX6070 variant, the MAX6071 omits the FILTER pin and associated noise-reduction capacitor option, simplifying layout for applications where wideband noise is not critical-evidenced by its 9µVP-P 0.1Hz–10Hz noise and 15µVRMS 10Hz–10kHz thermal noise at 4.096V output.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096V - precisely matches 12-bit ADC full-scale range (212 = 4096) for zero-code offset calibration. |
| Initial Accuracy | ±0.04% at +25°C - ensures ≤1.65mV absolute error before trimming, reducing system calibration burden. |
| Temp Drift (max) | 6ppm/°C - contributes ≤0.5mV error over –40°C to +125°C, critical for unheated industrial enclosures. |
| Noise (0.1–10Hz) | 4.8µVP-P - enables <16-bit ENOB in precision data acquisition without external filtering. |
| Supply Current | 150µA typical - allows battery operation >10 years in 10µA sleep-cycle sensor transmitters. |
| Load Current | ±10mA - drives 1kΩ DAC reference inputs or multiple op-amp bias networks simultaneously. |
| Dropout Voltage | 60–150mV at 10mA - permits use with 4.3V LDOs or single-cell LiFePO4 supplies (3.2–3.6V nominal). |
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 | Low-impedance ground return for internal reference core; must be connected to clean analog ground plane. |
| 2 - GNDS | Ground Sense | Sense point for feedback loop; tie directly to load ground to eliminate trace IR drop errors. |
| 3 - EN | Enable Input | CMOS-compatible control: VIH ≥ 0.7×VIN enables output; VIL ≤ 0.3×VIN disables (ISD = 6µA). |
| 4 - IN | Supply Input | Accepts 4.3V–5.5V; requires 0.1µF ceramic bypass capacitor placed within 2mm of pin. |
| 5 - OUTS | Voltage Sense Output | Feedback node for closed-loop regulation; connect directly to load's ground-referenced reference input. |
| 6 - OUTF | Voltage Force Output | High-current output driving load; short to OUTS at load point to maintain regulation under varying current. |
Key Features
| Feature | Design Value |
|---|---|
| Force-Sense Architecture | Separates current-carrying (OUTF) and sensing (OUTS) paths to nullify PCB trace resistance impact on accuracy. |
| Ultra-Low 1/f Noise | 4.8µVP-P (0.1–10Hz) enables sub-16-bit noise floor in weigh-scale and strain-gauge front-ends. |
| AEC-Q100 Qualified | Rated for automotive temperature range (–40°C to +125°C) and stress testing per Grade 2 requirements. |
| High PSRR | 80dB at 60Hz - rejects line-frequency interference in AC-powered test equipment and PLC modules. |
| Capacitive Load Stability | Stable with 0.1–10µF output capacitance, supporting both ceramic and tantalum bulk decoupling. |
Applications
| High-Resolution Data Acquisition | Precision Current Sources |
|---|---|
Use Scenario: 16-bit SAR ADC digitizing thermocouple signals in oil-and-gas downhole sensors. IC Role / Device Role / Timing Role: Provides stable 4.096V reference for ADC full-scale, rejecting supply ripple and thermal gradients. Use Value: Enables ±0.005% total unadjusted error (TUE) over temperature without recalibration. | Use Scenario: 4–20mA transmitter powering remote field instruments via two-wire loop. IC Role / Device Role / Timing Role: Sets precise current mirror ratio via 4.096V reference across shunt resistor. Use Value: Achieves 0.1% loop accuracy over –40°C to +85°C ambient, meeting HART specification. |
| Industrial Process Controllers | Automotive Battery Monitoring |
Use Scenario: PLC analog input module measuring 0–10V sensor outputs in chemical plant reactors. IC Role / Device Role / Timing Role: Reference for programmable gain instrumentation amplifier and multiplexed ADC. Use Value: Maintains 14-bit effective resolution despite 125°C cabinet temperatures and EMI exposure. | Use Scenario: BMS cell voltage monitoring in 48V mild-hybrid vehicle battery packs. IC Role / Device Role / Timing Role: Precision reference for 12-bit delta-sigma ADC measuring individual Li-ion cells. Use Value: Supports ±1mV cell voltage accuracy required for state-of-charge estimation algorithms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR4540BRZ | 4.096V, 3ppm/°C max drift, 120µA IQ, SOIC-8 package | Larger footprint; higher accuracy but no enable pin or force-sense outputs | Select when long-term stability (<10ppm/1000h) outweighs board space and dynamic control needs. |
| REF5040AIDR | 4.096V, 3ppm/°C max drift, 950µA IQ, SOIC-8, no enable | Higher power; superior noise (3.8µVP-P) but lacks shutdown capability | Choose for metrology-grade lab equipment where ultra-low noise dominates over power budget. |
Compared with ADR4540BRZ and REF5040AIDR, the MAX6071AAUT41+T trades 3ppm/°C drift for integrated enable control, force-sense topology, and 150µA quiescent current-making it optimal for space-constrained, battery-aware industrial IoT nodes requiring dynamic power management.
Availability
MAX6071AAUT41+T is available at Aetrix Electronics and suitable for high-accuracy industrial and process control, precision instrumentation, and automotive battery monitoring requiring stable component supply across extended temperature ranges.
Supply support for MAX6071AAUT41+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 MAX6070/MAX6071 family targets high-precision voltage reference needs in space-constrained, low-power systems-designed specifically for applications demanding sub-10ppm/°C drift and microvolt-level noise without external compensation.
FAQ
What is the maximum input voltage for MAX6071AAUT41+T?
The MAX6071AAUT41+T operates with a supply voltage range of 4.3V to 5.5V. Exceeding 5.5V violates absolute maximum ratings and may cause permanent damage. At VIN = 5.5V, dropout remains ≤150mV at 10mA load, ensuring reliable regulation for 4.096V output. Always use a 0.1µF ceramic capacitor between IN and GNDF.
How does the force-sense configuration improve accuracy in MAX6071AAUT41+T?
The MAX6071AAUT41+T uses separate OUTF (force) and OUTS (sense) pins to eliminate voltage drop errors caused by PCB trace resistance. By routing OUTF to the load and connecting OUTS directly to the load's ground reference point, the internal feedback loop compensates for IR losses-maintaining ±0.04% accuracy even with 100mΩ trace impedance at ±10mA load current.
Can MAX6071AAUT41+T drive a 10µF output capacitor?
Yes, the MAX6071AAUT41+T is stable with output capacitance from 0.1µF to 10µF, including ceramic, tantalum, and aluminum electrolytic types. This allows robust power-supply rejection in noisy environments. For 10µF, ensure ESR is <1Ω; typical 1206 X7R ceramics (ESR ≈ 50mΩ) provide optimal phase margin and transient response.
What is the enable logic threshold for MAX6071AAUT41+T?
The MAX6071AAUT41+T EN pin uses rail-to-rail CMOS thresholds: logic-high requires VIH ≥ 0.7 × VIN (e.g., ≥3.01V at VIN = 4.3V), and logic-low requires VIL ≤ 0.3 × VIN (e.g., ≤1.29V). Input current stays within ±1µA across temperature, enabling direct interface with 3.3V or 5V microcontrollers without level-shifting.
Is MAX6071AAUT41+T qualified for automotive applications?
Yes, MAX6071AAUT41+T is AEC-Q100 qualified (Grade 2: –40°C to +105°C junction, extended to +125°C per datasheet) and manufactured in TS16949-certified facilities. It meets automotive reliability requirements for battery monitors, ADAS sensor interfaces, and engine control modules-verified through HTOL, TC, and ESD testing per AEC standards.
MAX6071AAUT41+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- SOT-23-6
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 4.096V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±0.04%
- Temperature Coefficient:
- 6ppm/°C
- Noise - 0.1Hz to 10Hz:
- 9.6µVp-p
- Noise - 10Hz to 10kHz:
- 12µVrms
- Voltage - Input:
- 4.3V ~ 5.5V
- Current - Supply:
- 350µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX6071AAUT41+T FAQ
1.How can I place an order for MAX6071AAUT41+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6071AAUT41+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 MAX6071AAUT41+T reliable?
The price and inventory of MAX6071AAUT41+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6071AAUT41+T is usually 5 days.
3.What payment methods are accepted for MAX6071AAUT41+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6071AAUT41+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6071AAUT41+T?
MAX6071AAUT41+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6071AAUT41+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 MAX6071AAUT41+T?
For technical support, including MAX6071AAUT41+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6071AAUT41+T requirements.
6.How does Aetrix verify that MAX6071AAUT41+T is sourced from the original manufacturer or authorized distributors?
All MAX6071AAUT41+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 MAX6071AAUT41+T meets industry standards.
7.What is the process for return or replacement of MAX6071AAUT41+T?
All MAX6071AAUT41+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6071AAUT41+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 MAX6071AAUT41+T part is unused and in its original packaging.
Return procedure for MAX6071AAUT41+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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