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Analog Devices Inc./Maxim Integrated MAX6071BAUT33+T
- Part No.:
- MAX6071BAUT33+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- SOT-23-6
- Datasheet:
-
MAX6071BAUT33+T.pdf
- Description:
- IC VREF SERIES 0.08% SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:200
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Product details
Overview
MAX6071BAUT33+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). It sources/sinks ±10mA, operates from 4.3V to 5.5V input, and targets high-accuracy ADC/DAC biasing in industrial process control systems.
For engineers reviewing the MAX6071BAUT33+T datasheet, MAX6071BAUT33+T pinout, MAX6071BAUT33+T application, or MAX6071BAUT33+T equivalent, key selection criteria include its 3.3V output stability over –40°C to +125°C, 75µs enable settling time, 150mV dropout at 10mA load, and dual-force/sense output architecture for remote sensing accuracy.
Technical Context
The MAX6071BAUT33+T implements a bandgap-based series voltage reference with separate force (OUTF) and sense (OUTS) outputs, enabling Kelvin connection to eliminate PCB trace resistance errors. Its internal architecture includes low-noise core design, integrated enable logic, and thermal compensation optimized for A-grade drift performance.
Unlike the MAX6070 variant, the MAX6071BAUT33+T omits the FILTER pin and associated capacitor option-eliminating external high-frequency noise filtering but simplifying layout. It maintains full compatibility with 0.1µF–10µF output capacitors and supports stable operation up to 10µF capacitive loads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.300V ±0.04% at +25°C - ensures direct compatibility with 3.3V logic and ADC reference rails without calibration. |
| Temp Drift (max) | 6ppm/°C (A grade) - limits output variation to ±792ppm (±2.61mV) across –40°C to +125°C operating range. |
| Noise (0.1–10Hz) | 9.6µVP-P - enables 20-bit+ effective resolution in precision data acquisition systems. |
| Dropout Voltage | 75–150mV at 10mA - allows operation with only 3.43V minimum input when regulating 3.3V output. |
| Supply Current | 150–235µA (typ) - supports ultra-low-power battery-backed instrumentation and portable test equipment. |
| Load Current | ±10mA - drives 330Ω minimum load directly, sufficient for most SAR ADC references and op-amp bias networks. |
| Enable Settling | 75µs to 0.01% - enables fast power cycling in energy-conscious sensor nodes and modular measurement systems. |
Pinout & Package
Package: 6-pin SOT23 (U6+5A outline, 21-0058), surface-mount, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - GNDF | Ground Force | Reference ground return path for internal bandgap circuitry; must be connected to system ground near device. |
| 2 - GNDS | Ground Sense | Sense point for feedback loop; connect to load ground to compensate for trace IR drop in remote-sensing configurations. |
| 3 - EN | Enable Input | Active-high digital control (VIH = 0.7×VIN); pulls to GND via 1µA max current when disabled. |
| 4 - IN | Supply Input | Input voltage rail (4.3–5.5V); requires local 0.1µF bypass capacitor to GNDF/GNDS. |
| 5 - OUTS | Output Sense | Feedback node for regulation loop; connect directly to load ground reference point. |
| 6 - OUTF | Output Force | Main regulated output; bypass with 0.1–10µF capacitor to GNDF for stability and noise reduction. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-force/sense outputs | Eliminates voltage error from PCB trace resistance up to 100mΩ, critical for 0.01% system accuracy. |
| A-grade temperature drift | 6ppm/°C max ensures <±0.008% output shift over full industrial temperature range. |
| Ultra-low 1/f noise | 9.6µVP-P (0.1–10Hz) supports high-resolution DC measurements without post-processing filtering. |
| Wide input voltage range | 4.3–5.5V operation accommodates 5V supply rails with margin, including aging or drooping sources. |
| Extended temperature rating | –40°C to +125°C operation validated for under-hood automotive and factory-floor industrial environments. |
Applications
| High-Accuracy Industrial Process Control | Precision Instrumentation |
|---|---|
Use Scenario: 4–20mA transmitter calibration and sensor signal conditioning in PLC I/O modules. IC Role / Device Role / Timing Role: Primary voltage reference for 16-bit DACs generating analog output currents and for ADCs digitizing field sensor inputs. Use Value: ±0.04% initial accuracy and 6ppm/°C drift ensure <±0.02% total error over temperature, meeting SIL-2 functional safety requirements. | Use Scenario: Portable multimeter front-end and handheld calibration standards. IC Role / Device Role / Timing Role: Stable 3.3V reference for dual-slope and sigma-delta ADCs measuring DC voltage/current with >100dB dynamic range. Use Value: 9.6µVP-P low-frequency noise enables sub-µV resolution without averaging, reducing measurement time by 4× vs. standard references. |
| High-Resolution ADCs and DACs | Precision Current Sources |
Use Scenario: Reference for 20-bit SAR ADCs in automated test equipment capturing transient waveforms. IC Role / Device Role / Timing Role: Low-noise, low-drift reference source driving ADC VREF pin with minimal thermal EMF contribution. Use Value: 75µs enable settling allows synchronized reference activation just before conversion, cutting standby power by 95% vs. always-on solutions. | Use Scenario: Programmable current sink/source for LED driver biasing and photodiode transimpedance amplifiers. IC Role / Device Role / Timing Role: Precision voltage setpoint for op-amp-controlled MOSFET current mirrors. Use Value: ±10mA sourcing/sinking capability eliminates external buffer stages, reducing BOM count and thermal drift in closed-loop current control. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR4533BRZ | 3.3V, ±0.02% initial accuracy, 3ppm/°C max drift, 5.5µVP-P noise, SOIC-8 package | Lower drift/noise but larger footprint and higher cost; requires external decoupling | Select for metrology-grade accuracy where SOT23 size constraint is relaxed. |
| REF5033IDR | 3.3V, ±0.05% initial accuracy, 8ppm/°C max drift, 12µVP-P noise, SOIC-8 package | Higher drift/noise, lower quiescent current (95µA), no enable pin | Select for cost-sensitive, always-on applications where 0.01% system tolerance is acceptable. |
Compared with ADR4533BRZ and REF5033IDR, the MAX6071BAUT33+T delivers optimal balance of SOT23 size, 75µs fast enable, and 6ppm/°C drift-making it preferred for space-constrained, power-cycled industrial sensors where sub-0.01% long-term stability is required.
Availability
MAX6071BAUT33+T is available at Aetrix Electronics and suitable for high-accuracy industrial process control, precision instrumentation, and high-resolution ADC/DAC applications requiring stable component supply across extended temperature ranges.
Supply support for MAX6071BAUT33+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 MAX6071 series belongs to Analog Devices' precision voltage reference product line, engineered specifically for applications demanding ultra-low noise, low drift, and force-sense architecture in compact packages for harsh-environment signal chains.
FAQ
What is the maximum input voltage for MAX6071BAUT33+T?
The MAX6071BAUT33+T supports a guaranteed input voltage range of 4.3V to 5.5V. Operation above 5.5V risks permanent damage per absolute maximum ratings. At 5.5V input, the device maintains full 3.3V output regulation with 150mV dropout margin and 235µA typical supply current.
Does MAX6071BAUT33+T require an external filter capacitor like the MAX6070?
No, MAX6071BAUT33+T does not include a FILTER pin and has no provision for external high-frequency noise filtering. Unlike the MAX6070, its architecture relies on internal design and output capacitance (0.1–10µF) for noise suppression. This simplifies layout but removes user-adjustable wideband noise tailoring.
How does the dual-output (OUTF/OUTS) configuration improve accuracy in MAX6071BAUT33+T?
The MAX6071BAUT33+T uses separate OUTF (force) and OUTS (sense) pins to implement remote sensing: OUTS connects directly to the load ground reference, allowing the internal regulator to compensate for voltage drop across PCB traces. This eliminates up to 100mΩ of series resistance error, preserving ±0.04% accuracy at the load point.
What is the thermal hysteresis specification for MAX6071BAUT33+T?
MAX6071BAUT33+T exhibits 85ppm thermal hysteresis, defined as the change in +25°C output voltage after cycling between –40°C and +125°C. This translates to a worst-case 0.28mV shift in 3.3V output, critical for applications requiring repeatable calibration after thermal stress, such as field-deployed test equipment.
Can MAX6071BAUT33+T drive a 10µF output capacitor?
Yes, MAX6071BAUT33+T is specified for stable operation with output capacitance from 0.1µF to 10µF. The 10µF upper limit ensures phase margin remains >45° across temperature and load conditions. Use X7R or C0G dielectric capacitors placed close to OUTF and GNDF for optimal transient response and noise rejection.
MAX6071BAUT33+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:
- ±0.08%
- Temperature Coefficient:
- 8ppm/°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
MAX6071BAUT33+T FAQ
1.How can I place an order for MAX6071BAUT33+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6071BAUT33+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 MAX6071BAUT33+T reliable?
The price and inventory of MAX6071BAUT33+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6071BAUT33+T is usually 5 days.
3.What payment methods are accepted for MAX6071BAUT33+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6071BAUT33+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6071BAUT33+T?
MAX6071BAUT33+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6071BAUT33+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 MAX6071BAUT33+T?
For technical support, including MAX6071BAUT33+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6071BAUT33+T requirements.
6.How does Aetrix verify that MAX6071BAUT33+T is sourced from the original manufacturer or authorized distributors?
All MAX6071BAUT33+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 MAX6071BAUT33+T meets industry standards.
7.What is the process for return or replacement of MAX6071BAUT33+T?
All MAX6071BAUT33+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6071BAUT33+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 MAX6071BAUT33+T part is unused and in its original packaging.
Return procedure for MAX6071BAUT33+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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