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Analog Devices Inc./Maxim Integrated MAX6070DAUT12/V+T
- Part No.:
- MAX6070DAUT12/V+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- SOT-23-6
- Datasheet:
-
MAX6070DAUT12/V+T.pdf
- Description:
- IC VREF SERIES 1.25V SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,905
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Product details
Overview
MAX6070DAUT12/V+T from Analog Devices is a precision 1.25V low-noise, low-drift series voltage reference in a 6-pin SOT23 package. It delivers ±0.2% initial accuracy, 6ppm/°C max temperature drift (A-grade), and 4.8µVP-P (0.1Hz–10Hz) noise at 2.5V - scaled proportionally to 1.25V output - enabling high-accuracy ADC/DAC biasing in industrial sensor signal chains.
For engineers reviewing the MAX6070DAUT12/V+T datasheet, MAX6070DAUT12/V+T pinout, MAX6070DAUT12/V+T application, or MAX6070DAUT12/V+T equivalent, this device supports critical design tasks including precision current source calibration, high-resolution data acquisition front-ends, and automotive-grade analog monitoring where long-term stability and sub-10µVP-P low-frequency noise are mandatory.
Technical Context
The MAX6070DAUT12/V+T implements a bandgap-based series voltage reference with dual-output force-sense architecture (OUTF/GNDF and OUTS/GNDS), enabling Kelvin sensing to reject PCB trace resistance errors. Its integrated FILTER pin accepts an external 0.1µF capacitor to suppress high-frequency noise beyond 10kHz.
It operates over –40°C to +125°C with 2.7V to 5.5V supply input, sinks/sources ±10mA load current, and features enable-controlled shutdown with 6µA quiescent current. The D-grade variant specifies ±0.2% initial accuracy and 20ppm/°C max drift - distinct from A/B grades - and is AEC-Q100 qualified for automotive use.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.250V ±0.2% at +25°C - matches common DAC/ADC reference rails and enables direct interface with 12-bit+ systems without scaling. |
| Initial Accuracy | ±0.2% (D grade) - eliminates need for post-production trimming in cost-sensitive automotive and industrial modules. |
| Temp Drift | 20ppm/°C (max) - ensures <250µV output shift across –40°C to +125°C, critical for unheated outdoor instrumentation. |
| Low-Freq Noise | 4.8µVP-P (0.1Hz–10Hz) - directly limits effective resolution in 24-bit delta-sigma ADCs used in precision weigh scales. |
| Supply Current | 150µA typical - allows operation from micro-power rails in battery-backed sensor nodes with multi-year runtime. |
| Load Drive | ±10mA sourcing/sinking - supports driving 10kΩ loads or multiple op-amp references without external buffers. |
| Dropout Voltage | 110mV (typ) at 10mA - enables use with 1.35V LDOs or single-cell LiFePO₄ supplies in portable test equipment. |
Pinout & Package
Package: 6-pin SOT23 (U6+5/U6+5A), 2.9mm × 1.6mm × 1.1mm, RoHS-compliant, thermal resistance θJA = 230°C/W on multilayer board.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FILTER (Pin 1) | High-frequency bypass input | Accepts 0.1µF capacitor to GND to reduce thermal noise above 10kHz; left floating if unused. |
| GNDF (Pin 2) | Force ground return | Carries reference output current return path; must be routed separately from GNDS to avoid IR drop error. |
| EN (Pin 3) | Enable control input | Active-high logic: VIH ≥ 0.7×VIN; enables fast 6ms turn-on settling when paired with 0.1µF filter cap. |
| IN (Pin 4) | Supply input | Accepts 2.7V–5.5V; internal regulation rejects ripple up to 84dB at 60Hz for noisy DC/DC outputs. |
| OUTS (Pin 5) | Sense output | Connects to load ground point; closes feedback loop to correct for trace resistance between OUTF and load. |
| OUTF (Pin 6) | Force output | Delivers regulated 1.25V; bypassed with 0.1–10µF capacitor to GNDF to stabilize dynamic load transients. |
Key Features
| Feature | Design Value |
|---|---|
| Force-sense output architecture | Eliminates voltage error from PCB trace resistance up to 100mΩ, preserving accuracy in high-current sensor interfaces. |
| Filter-capable noise reduction | Reduces 10Hz–10kHz thermal noise by >50% (to ~3µVRMS) when 0.1µF cap is applied to FILTER pin. |
| AEC-Q100 qualification | Validated for automotive applications including engine control modules and ADAS power-supply monitoring. |
| Wide temperature operation | Guaranteed performance from –40°C to +125°C enables deployment in under-hood and industrial motor-drive environments. |
| Low dropout & high PSRR | 110mV dropout and 84dB 60Hz ripple rejection allow direct use after switching regulators without additional LDO filtering. |
Applications
| Industrial Process Transmitter | Precision Weigh Scale Front-End |
|---|---|
|
Use Scenario: 4–20mA loop-powered pressure transmitter operating in oil & gas field cabinets at –40°C to +85°C. IC Role / Device Role / Timing Role: Provides stable 1.25V reference for 24-bit sigma-delta ADC measuring strain-gauge bridge output. Use Value: 20ppm/°C drift ensures <0.05% full-scale error across ambient range; 4.8µVP-P noise enables 21.5 effective bits at 10SPS. |
Use Scenario: Battery-operated portable lab scale with 100g full-scale capacity and 10mg resolution. IC Role / Device Role / Timing Role: Supplies excitation and reference to load-cell instrumentation amplifier and ADC. Use Value: 150µA supply current extends 10-year battery life; force-sense topology rejects PCB resistance drift during thermal cycling. |
| Automotive Battery Monitor IC | Medical ECG Analog Front-End |
|
Use Scenario: In-vehicle 12V battery health monitor sampling cell voltages via precision resistor dividers. IC Role / Device Role / Timing Role: Reference for 16-bit SAR ADC digitizing scaled battery voltage with <1 LSB INL error. Use Value: AEC-Q100 qualification ensures reliability in automotive environment; ±0.2% accuracy eliminates calibration per unit. |
Use Scenario: Portable ECG device acquiring microvolt-level cardiac signals with 120dB SNR requirement. IC Role / Device Role / Timing Role: Low-noise reference for programmable-gain instrumentation amplifier and anti-aliasing filter. Use Value: 4.8µVP-P 0.1–10Hz noise prevents baseline wander masking P-wave morphology in raw ECG traces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF1012AIDBVR | 1.25V, ±0.05% initial accuracy, 3ppm/°C drift, no force-sense, 12µVP-P noise | Lacks Kelvin sensing; suitable only for low-current, low-precision applications | Select when ultra-low drift outweighs need for trace-resistance compensation and system cost allows tighter tolerance. |
| ADR3412ARJZ-R7 | 1.25V, ±0.1% initial accuracy, 10ppm/°C drift, force-sense, 8.5µVP-P noise, 180µA IQ | Higher noise and current; wider drift spec but same topology and AEC-Q100 support | Choose when supply budget allows higher current and system-level noise floor permits 8.5µVP-P. |
Compared with REF1012AIDBVR and ADR3412ARJZ-R7, the MAX6070DAUT12/V+T uniquely balances AEC-Q100 compliance, force-sense capability, and sub-5µVP-P noise at 150µA - making it optimal for automotive and industrial systems requiring both accuracy and robustness against layout-induced errors.
Availability
MAX6070DAUT12/V+T is available at Aetrix Electronics and suitable for industrial process transmitters, automotive battery monitors, and portable medical instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6070DAUT12/V+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 series is designed for high-accuracy, low-noise voltage referencing in harsh-environment applications - emphasizing long-term stability, wide temperature operation, and layout-insensitive force-sense architecture.
FAQ
What is the output voltage tolerance of the MAX6070DAUT12/V+T over temperature?
The MAX6070DAUT12/V+T has a maximum temperature coefficient of 20ppm/°C (D grade), resulting in a total output variation of ≤±250µV across –40°C to +125°C. This is verified per the box method per datasheet Note 2 and applies to the full specified operating range - not just +25°C - ensuring predictable performance in uncontrolled thermal environments.
Does the MAX6070DAUT12/V+T require external capacitors for stability?
Yes, the MAX6070DAUT12/V+T requires a minimum 0.1µF ceramic capacitor from OUTF to GNDF for stability under all load conditions up to ±10mA. An additional 0.1µF capacitor on the FILTER pin is optional but recommended to reduce high-frequency noise. No capacitor is required on EN or IN for basic operation.
How does the force-sense architecture of the MAX6070DAUT12/V+T improve accuracy?
The MAX6070DAUT12/V+T uses separate OUTF (force) and OUTS (sense) pins to close the regulation loop at the load, eliminating voltage drop errors caused by PCB trace resistance between the IC and remote load. This maintains 1.25V accuracy even with 100mΩ of series resistance - critical for high-current or densely routed boards.
Is the MAX6070DAUT12/V+T pin-compatible with other MAX6070 variants?
Yes, all MAX6070 variants - including MAX6070DAUT12/V+T, MAX6070AUT25/V+T, and MAX6070AUT33/V+T - share identical 6-pin SOT23 pinout, electrical interface, and force-sense topology. Only the output voltage and grade-specific parameters (accuracy, drift) differ; no PCB redesign is needed when swapping within the MAX6070 family.
What is the shutdown current consumption of the MAX6070DAUT12/V+T?
The MAX6070DAUT12/V+T draws 6µA maximum shutdown current when the EN pin is driven low. This value is guaranteed over –40°C to +125°C and enables ultra-low-power sleep modes in battery-critical applications such as portable diagnostic tools and wireless sensor nodes.
MAX6070DAUT12/V+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):
- 1.25V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±0.2%
- Temperature Coefficient:
- 20ppm/°C
- Noise - 0.1Hz to 10Hz:
- 3.6µVp-p
- Noise - 10Hz to 10kHz:
- 2.5µVrms
- Voltage - Input:
- 2.7V ~ 5.5V
- Current - Supply:
- 260µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX6070DAUT12/V+T FAQ
1.How can I place an order for MAX6070DAUT12/V+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6070DAUT12/V+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 MAX6070DAUT12/V+T reliable?
The price and inventory of MAX6070DAUT12/V+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6070DAUT12/V+T is usually 5 days.
3.What payment methods are accepted for MAX6070DAUT12/V+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6070DAUT12/V+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6070DAUT12/V+T?
MAX6070DAUT12/V+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6070DAUT12/V+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 MAX6070DAUT12/V+T?
For technical support, including MAX6070DAUT12/V+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6070DAUT12/V+T requirements.
6.How does Aetrix verify that MAX6070DAUT12/V+T is sourced from the original manufacturer or authorized distributors?
All MAX6070DAUT12/V+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 MAX6070DAUT12/V+T meets industry standards.
7.What is the process for return or replacement of MAX6070DAUT12/V+T?
All MAX6070DAUT12/V+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6070DAUT12/V+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 MAX6070DAUT12/V+T part is unused and in its original packaging.
Return procedure for MAX6070DAUT12/V+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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