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Analog Devices Inc./Maxim Integrated MAX6070DAUT12/V+
- Part No.:
- MAX6070DAUT12/V+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- SOT-23-6
- Datasheet:
-
MAX6070DAUT12/V+.pdf
- Description:
- LOW-NOISE, HIGH-PRECISION SERIES
- Quantity:
- Payment:
- Shipping:
Inventory:1,840
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Product details
Overview
MAX6070DAUT12/V+ from Analog Devices is a precision 1.25V 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), and 4.8µVP-P 1/f noise (0.1Hz–10Hz) at 1.25V output, enabling high-accuracy ADC/DAC biasing in industrial sensor signal chains.
For engineers reviewing the MAX6070DAUT12/V+ datasheet, MAX6070DAUT12/V+ pinout, MAX6070DAUT12/V+ application, or MAX6070DAUT12/V+ equivalent, this device is selected for ultra-stable excitation in precision current sources, high-resolution data acquisition front-ends, and automotive-grade analog monitoring systems requiring AEC-Q100 qualification.
Technical Context
The MAX6070DAUT12/V+ implements a bandgap-based series reference architecture with dual-output force-sense topology (OUTF/GNDF and OUTS/GNDS), enabling Kelvin sensing to reject PCB trace resistance errors. Its integrated FILTER pin supports external 0.1µF capacitor bypassing to suppress wideband noise above 10kHz.
It operates across –40°C to +125°C with 2.7V to 5.5V supply input, 150µA typical quiescent current, and ±10mA load capability-supporting both sourcing and sinking while maintaining 0.2% output regulation over full load and temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.250V ±0.04% at +25°C - tight tolerance enables direct interface with 12-bit+ SAR ADCs without calibration. |
| Temp Drift (max) | 6ppm/°C (A grade) - ensures ≤75ppm total drift over –40°C to +125°C, critical for uncalibrated industrial sensors. |
| 1/f Noise | 4.8µVP-P (0.1Hz–10Hz) - minimizes low-frequency error in precision weigh scales and strain gauge bridges. |
| Supply Current | 150µA typ - allows battery-powered portable instrumentation with >10-year shelf life on coin cell. |
| Load Current | ±10mA - supports driving 10kΩ DAC reference inputs or 100Ω precision current source loads directly. |
| Dropout Voltage | 230mV max at 10mA - permits operation from 1.5V supply rails when VOUT = 1.25V, improving power efficiency. |
| Ripple Rejection | 89dB at 60Hz - rejects AC mains coupling in PLC analog I/O modules without additional filtering. |
Pinout & Package
Package: 6-pin SOT23 (U6+5/U6+5A), 2.9mm × 1.6mm footprint, RoHS-compliant, rated for –40°C to +125°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - FILTER | High-frequency noise filter input | Accepts 0.1µF capacitor to GND; enables 10Hz–10kHz thermal noise reduction by >30dB when used. |
| 2 - GNDF | Force ground return | Carries return current for OUTF path; must be routed separately from GNDS to avoid IR drop in sense path. |
| 3 - EN | Enable control input | Active-high logic; draws <1µA; enables fast shutdown (6µs settling) for power-gated sensor nodes. |
| 4 - IN | Supply input | Accepts 2.7V–5.5V; internal LDO regulates reference core-rejects supply ripple up to 89dB. |
| 5 - OUTS | Sense output | Connects directly to load ground; provides feedback to internal amplifier to compensate trace resistance. |
| 6 - OUTF | Force output | Delivers regulated 1.25V; shorted to OUTS near load to close Kelvin loop and eliminate PCB resistance error. |
Key Features
| Feature | Design Value |
|---|---|
| Force-sense output topology | Eliminates voltage error from PCB trace resistance up to 1Ω-critical for 0.01% system accuracy. |
| Filter-enabled wideband noise suppression | Reduces 10Hz–10kHz thermal noise from 6µVRMS to 2.5µVRMS with 0.1µF CFILTER. |
| AEC-Q100 qualified | Validated for automotive applications including engine control sensor biasing and ADAS power monitoring. |
| Low 150µA quiescent current | Enables always-on precision references in energy-harvesting IoT nodes with µW-level budgets. |
| ±10mA bidirectional load drive | Directly powers 12-bit DAC reference inputs or drives 100Ω precision current source resistors. |
Applications
| Industrial Sensor Signal Conditioning | Precision Current Source Excitation |
|---|---|
|
Use Scenario: Amplifying and digitizing millivolt-level outputs from RTDs and strain gauges in factory automation PLCs. IC Role / Device Role / Timing Role: Provides stable 1.25V reference for instrumentation amplifier gain-setting and 24-bit ΣΔ ADC conversion. Use Value: 6ppm/°C drift and 4.8µVP-P noise ensure <0.005% measurement uncertainty over full industrial temperature range. |
Use Scenario: Generating highly stable 4–20mA loop currents for field transmitters in hazardous environments. IC Role / Device Role / Timing Role: Supplies precise 1.25V reference to op-amp-based Howland current source circuitry. Use Value: Force-sense topology maintains 0.01% current accuracy despite 500mΩ PCB trace resistance between IC and load. |
| Automotive Battery Monitoring Unit | Portable High-Resolution Data Logger |
|
Use Scenario: Measuring individual cell voltages in 12S Li-ion battery packs for EV BMS systems. IC Role / Device Role / Timing Role: Reference for multiplexed 16-bit SAR ADC sampling each cell via precision resistor dividers. Use Value: AEC-Q100 qualification and 125°C operation guarantee reliability in under-hood battery enclosures. |
Use Scenario: Long-term environmental logging using MEMS pressure/temperature sensors powered by coin cells. IC Role / Device Role / Timing Role: Ultra-low-power 1.25V reference for successive-approximation ADCs in sleep/wake cycles. Use Value: 150µA supply current extends 10-year deployment life on CR2032 batteries with periodic wake-up sampling. |
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, 5ppm/°C max drift, but no force-sense outputs or FILTER pin; 200µA IQ. | Lacks Kelvin sensing-unsuitable for high-accuracy current sources with long PCB traces. | Select when board space is constrained and trace resistance <50mΩ; verify layout-induced error budget. |
| ADR3412ARJZ-R7 | 1.25V, 10ppm/°C max drift, 12µVP-P noise, no enable or filter; 120µA IQ. | No shutdown mode-cannot support low-power duty-cycled sensor nodes. | Choose for cost-sensitive consumer applications where 0.01% system accuracy is not required. |
Compared with REF1012AIDBVR and ADR3412ARJZ-R7, the MAX6070DAUT12/V+ uniquely combines force-sense topology, filterable wideband noise, and AEC-Q100 qualification-making it the only option for automotive or industrial designs demanding sub-0.01% absolute accuracy with minimal layout dependency.
Availability
MAX6070DAUT12/V+ 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 MAX6070DAUT12/V+ 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 belongs to Analog Devices' precision voltage reference product line, engineered specifically for applications demanding ultra-low noise, low drift, and force-sense accuracy in harsh environments.
FAQ
What is the output voltage tolerance of the MAX6070DAUT12/V+ at room temperature?
The MAX6070DAUT12/V+ guarantees ±0.04% initial output voltage accuracy at +25°C, corresponding to ±0.5mV deviation from its nominal 1.250V output. This specification is 100% production tested and applies to the A-grade variant indicated by the "D" in the part number suffix.
Does the MAX6070DAUT12/V+ support Kelvin (force-sense) connections, and how are they implemented?
Yes, the MAX6070DAUT12/V+ implements a true force-sense architecture with dedicated OUTF/GNDF and OUTS/GNDS terminals. OUTF delivers the regulated 1.25V, while OUTS provides the feedback node-shorting them near the load cancels voltage drop across PCB traces, preserving accuracy even with 1Ω interconnect resistance.
Can the MAX6070DAUT12/V+ be used in automotive applications, and what qualification does it hold?
Yes, the MAX6070DAUT12/V+ is AEC-Q100 qualified for automotive use. It operates reliably from –40°C to +125°C and meets stress testing requirements for temperature cycling, humidity, and mechanical shock-making it suitable for battery monitoring, engine control, and ADAS subsystems.
How does the FILTER pin on the MAX6070DAUT12/V+ reduce noise, and what capacitor value is recommended?
The FILTER pin on the MAX6070DAUT12/V+ accepts an external 0.1µF capacitor to ground, which forms a low-pass filter that reduces thermal noise in the 10Hz–10kHz band by up to 50%. With CFILTER = 0.1µF, the MAX6070DAUT12/V+ achieves 2.5µVRMS noise versus 6µVRMS without filtering.
What is the minimum supply voltage required for the MAX6070DAUT12/V+ to maintain regulation at full load?
The MAX6070DAUT12/V+ requires a minimum supply voltage of 2.7V to maintain regulation at 25°C. At full ±10mA load and over –40°C to +125°C, the dropout voltage is specified at 230mV max-so VIN must be ≥1.48V to sustain 1.25V output, though 2.7V is the guaranteed operational lower limit per datasheet.
MAX6070DAUT12/V+ 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+ FAQ
1.How can I place an order for MAX6070DAUT12/V+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6070DAUT12/V+ 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+ reliable?
The price and inventory of MAX6070DAUT12/V+ 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+ is usually 5 days.
3.What payment methods are accepted for MAX6070DAUT12/V+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6070DAUT12/V+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6070DAUT12/V+?
MAX6070DAUT12/V+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6070DAUT12/V+ 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+?
For technical support, including MAX6070DAUT12/V+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6070DAUT12/V+ requirements.
6.How does Aetrix verify that MAX6070DAUT12/V+ is sourced from the original manufacturer or authorized distributors?
All MAX6070DAUT12/V+ 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+ meets industry standards.
7.What is the process for return or replacement of MAX6070DAUT12/V+?
All MAX6070DAUT12/V+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6070DAUT12/V+, 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+ part is unused and in its original packaging.
Return procedure for MAX6070DAUT12/V+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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