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Analog Devices Inc./Maxim Integrated MAX6070BAUT12+T
- Part No.:
- MAX6070BAUT12+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- SOT-23-6
- Datasheet:
-
MAX6070BAUT12+T.pdf
- Description:
- IC VREF SERIES 0.08% SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:9,446
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Product details
Overview
MAX6070BAUT12+T from Analog Devices is a precision 1.25V 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-accuracy ADC/DAC biasing in industrial sensor signal chains.
For engineers reviewing the MAX6070BAUT12+T datasheet, MAX6070BAUT12+T pinout, MAX6070BAUT12+T application, or MAX6070BAUT12+T equivalent, this device is selected for low-drift, low-noise analog front-ends where supply current <200µA, dropout <230mV at 10mA, and AEC-Q100 qualification are critical design constraints.
Technical Context
The MAX6070BAUT12+T implements a bandgap-based series voltage reference with dual-output force-sense architecture (OUTF/OUTS) and integrated noise-filtering capability via dedicated FILTER pin. It operates as a 3-terminal adjustable reference with active enable control and shutdown mode drawing only 6µA.
Its design supports wideband noise suppression through external 0.1µF capacitor on FILTER, achieves 85dB ripple rejection at 60Hz, and maintains stability with capacitive loads from 0.1µF to 10µF - all while sourcing/sinking ±10mA across –40°C to +125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.250V ±0.04% at +25°C - enables direct interface with 12-bit+ SAR ADCs without gain calibration |
| Temp Drift (max) | 6ppm/°C (A grade) - ensures ≤±0.75mV output shift over –40°C to +125°C operating range |
| Noise (0.1–10Hz) | 4.8µVP-P - minimizes quantization uncertainty in precision instrumentation amplifiers |
| Supply Current | 150µA typical - allows battery-powered portable measurement systems to achieve >10-year shelf life |
| Dropout Voltage | 230mV max at 10mA load - supports operation from 1.48V input in low-voltage industrial microcontrollers |
| Ripple Rejection | 85dB at 60Hz - suppresses power-supply coupling in PLC analog I/O modules |
| Enable Logic | VIH = 0.7×VIN, VIL = 0.3×VIN - compatible with 1.8V/3.3V GPIO without level-shifting |
Pinout & Package
Package: 6-pin SOT23 (U6+5/U6+5A outline), 2.9mm × 1.6mm × 1.1mm body, RoHS-compliant, thermal resistance θJA = 230°C/W on multi-layer board.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | FILTER | High-frequency noise bypass node; connect 0.1µF to GND to reduce thermal noise above 10Hz |
| 2 | GNDF | Force ground return path - routed separately from load ground to eliminate IR drop error |
| 3 | EN | Active-high digital enable; drives device into 6µA shutdown state when logic-low |
| 4 | IN | Input supply rail; accepts 2.7V–5.5V with 230mV dropout margin at full 10mA load |
| 5 | OUTS | Sense output - connects directly to load ground to compensate for PCB trace resistance |
| 6 | OUTF | Force output - delivers regulated 1.25V to load; bypassed with 0.1–10µF capacitor to GNDF |
Key Features
| Feature | Design Value |
|---|---|
| Force-sense output architecture | Eliminates voltage error from PCB trace resistance up to 100mΩ between reference and load |
| Integrated noise filter option | Reduces 10Hz–10kHz thermal noise by 50% (to 3µVRMS) when 0.1µF capacitor applied to FILTER pin |
| AEC-Q100 qualified | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| Capacitive-load stability | Stable with 0.1–10µF output capacitance - simplifies EMI filtering without phase-margin risk |
| Low long-term drift | 35ppm drift over 1000 hours - reduces recalibration frequency in field-deployed test equipment |
Applications
| Industrial Sensor Signal Conditioning | Precision Data Acquisition Systems |
|---|---|
|
Use Scenario: Amplifying and digitizing millivolt-level outputs from strain gauges and RTDs in factory-floor PLC analog input modules. IC Role / Device Role / Timing Role: Provides stable 1.25V reference for 24-bit delta-sigma ADCs (e.g., ADS1262), rejecting supply ripple and thermal drift. Use Value: Enables ±0.005% system accuracy over temperature without hardware recalibration. |
Use Scenario: Biasing programmable gain instrumentation amplifiers in portable multimeters and handheld calibrators. IC Role / Device Role / Timing Role: Supplies low-noise, low-drift reference to PGA and successive-approximation ADC stages. Use Value: Achieves <100nV RMS noise floor and eliminates 1/f noise contribution to measurement uncertainty. |
| Automotive Battery Monitoring Units | Medical Patient Monitoring Front-Ends |
|
Use Scenario: Reference for cell-voltage measurement circuits in 12S Li-ion battery packs used in EV powertrain subsystems. IC Role / Device Role / Timing Role: Delivers AEC-Q100-qualified 1.25V reference to isolated ADCs monitoring individual cell voltages. Use Value: Maintains ±0.5mV absolute accuracy across –40°C to +125°C, ensuring safe SOC estimation. |
Use Scenario: Setting full-scale range of ECG and EEG analog front-ends in FDA-cleared patient monitors. IC Role / Device Role / Timing Role: Low-noise 1.25V reference for anti-aliasing filters and 16-bit+ medical-grade ADCs. Use Value: Reduces baseline wander and improves SNR by 12dB versus standard bandgap references. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5012IDR | Higher initial accuracy (±0.02%), but 10ppm/°C max drift and no FILTER pin; consumes 950µA quiescent current | Better for lab-grade bench instruments; unsuitable for battery-powered or automotive thermal environments | Select REF5012IDR only when ultra-tight initial tolerance outweighs power and noise requirements |
| ADR4512BRTZ-REEL7 | Lower noise (3.5µVP-P), same 6ppm/°C drift, but no enable/shutdown and requires ≥3.3V supply | Ideal for fixed-power industrial controllers; incompatible with 2.7V–3.0V microcontroller domains | Choose ADR4512BRTZ-REEL7 when continuous operation and lowest possible noise dominate design priorities |
Compared with REF5012IDR and ADR4512BRTZ-REEL7, the MAX6070BAUT12+T uniquely balances ultra-low noise, AEC-Q100 qualification, sub-200µA supply current, and integrated enable functionality - making it optimal for space-constrained, thermally demanding, and power-sensitive embedded systems.
Availability
MAX6070BAUT12+T is available at Aetrix Electronics and suitable for industrial sensor conditioning, automotive battery monitoring, and portable medical instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6070BAUT12+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 since 1965.
The MAX6070 series belongs to Analog Devices' precision voltage reference product line, engineered specifically for high-accuracy data conversion systems where low noise, low drift, and robust thermal performance are non-negotiable.
FAQ
What is the maximum load current supported by the MAX6070BAUT12+T?
The MAX6070BAUT12+T can source and sink up to ±10mA of load current while maintaining regulation within specifications. At 10mA sink, dropout voltage remains ≤230mV across –40°C to +125°C, enabling use with low-headroom supplies. Short-circuit current is limited to 25mA for protection.
Does the MAX6070BAUT12+T require an external capacitor on the FILTER pin?
No - the FILTER pin on the MAX6070BAUT12+T is optional. Connecting a 0.1µF capacitor from FILTER to GNDF reduces 10Hz–10kHz thermal noise by ~50%, but the device operates fully functional with FILTER left unconnected. Omitting the capacitor preserves 1/f noise performance below 10Hz.
How does the force-sense (OUTF/OUTS) architecture improve accuracy in the MAX6070BAUT12+T?
The MAX6070BAUT12+T uses separate force (OUTF) and sense (OUTS) outputs to eliminate voltage drop errors caused by PCB trace resistance between the reference and load. By routing OUTS directly to the load ground point, the internal error amplifier regulates OUTF to maintain exact 1.25V at the load - achieving <0.1% total error even with 100mΩ interconnect resistance.
Is the MAX6070BAUT12+T qualified for automotive applications?
Yes - the MAX6070BAUT12+T is AEC-Q100 qualified (Grade 1: –40°C to +125°C), with full characterization across temperature, lifetime stability (35ppm/1000h), and thermal hysteresis (85ppm). Its 6ppm/°C max drift and 85dB PSRR meet stringent requirements for engine control, battery management, and ADAS sensor interfaces.
What is the minimum input voltage required for the MAX6070BAUT12+T to regulate at 1.25V?
The MAX6070BAUT12+T requires a minimum input voltage of 2.7V to guarantee regulation at 1.25V output. With 230mV max dropout at 10mA load and –40°C to +125°C, VIN must be ≥1.48V to sustain 1.25V output - but the 2.7V lower limit ensures full specification compliance including line/load regulation, noise, and drift performance.
MAX6070BAUT12+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:
- ±0.08%
- Temperature Coefficient:
- 8ppm/°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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX6070BAUT12+T FAQ
1.How can I place an order for MAX6070BAUT12+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6070BAUT12+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 MAX6070BAUT12+T reliable?
The price and inventory of MAX6070BAUT12+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6070BAUT12+T is usually 5 days.
3.What payment methods are accepted for MAX6070BAUT12+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6070BAUT12+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6070BAUT12+T?
MAX6070BAUT12+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6070BAUT12+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 MAX6070BAUT12+T?
For technical support, including MAX6070BAUT12+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6070BAUT12+T requirements.
6.How does Aetrix verify that MAX6070BAUT12+T is sourced from the original manufacturer or authorized distributors?
All MAX6070BAUT12+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 MAX6070BAUT12+T meets industry standards.
7.What is the process for return or replacement of MAX6070BAUT12+T?
All MAX6070BAUT12+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6070BAUT12+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 MAX6070BAUT12+T part is unused and in its original packaging.
Return procedure for MAX6070BAUT12+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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