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Analog Devices Inc./Maxim Integrated MAX6070AAUT18+T
- Part No.:
- MAX6070AAUT18+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- SOT-23-6
- Datasheet:
-
MAX6070AAUT18+T.pdf
- Description:
- IC VREF SERIES 0.04% SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:6,664
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Product details
Overview
MAX6070AAUT18+T from Analog Devices is a precision 1.8V 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 1.8V output, enabling high-accuracy ADC/DAC biasing in industrial process control systems.
For engineers reviewing the MAX6070AAUT18+T datasheet, MAX6070AAUT18+T pinout, MAX6070AAUT18+T application, or MAX6070AAUT18+T equivalent, this device supports critical design requirements including low dropout (150mV @ 10mA), 85dB ripple rejection, and filter-enabled wideband noise suppression - essential for precision instrumentation and automotive sensor signal chains.
Technical Context
The MAX6070AAUT18+T implements a bandgap-based series voltage reference architecture with dual-output force-sense topology (OUTF/GNDF and OUTS/GNDS) to reject PCB trace resistance errors. Its integrated FILTER pin accepts an external 0.1µF capacitor to suppress high-frequency noise without compromising settling time.
It operates over –40°C to +125°C with 150µA quiescent current, supports ±10mA load sourcing/sinking, and maintains stability with capacitive loads from 0.1µF to 10µF - making it suitable for dynamically loaded precision analog front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.800V ±0.04% at +25°C - ensures accurate scaling for 1.8V logic-compatible ADCs and DACs |
| Temp Drift (max) | 6ppm/°C (A grade) - limits full-range error to ≤0.72mV over –40°C to +125°C |
| 1/f Noise | 4.8µVP-P (0.1Hz–10Hz) - preserves resolution in sub-10Hz measurement applications |
| Dropout Voltage | 150mV @ 10mA - allows operation from 1.95V supply in low-voltage systems |
| Ripple Rejection | 86dB @ 60Hz - suppresses power-supply coupling into sensitive analog circuits |
| Supply Current | 150µA typical - enables battery-powered portable instrumentation with multi-year runtime |
| Enable Logic | VIH = 0.7×VIN, VIL = 0.3×VIN - compatible with standard CMOS microcontrollers |
Pinout & Package
Package: 6-pin SOT23 (package code U6+5A), footprint per JEDEC MO-178AB, thermal resistance θJA = 230°C/W on multilayer board.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FILTER (Pin 1) | High-frequency bypass input | Connect 0.1µF capacitor to GND to reduce thermal noise above 10Hz; leave open if unused |
| GNDF (Pin 2) | Force ground return | Carries reference output current return path; connect directly to GND near load to minimize IR drop |
| EN (Pin 3) | Active-high enable | Drives internal regulator; logic high ≥0.7×VIN enables output, low disables with 6µA shutdown current |
| IN (Pin 4) | Input supply | Accepts 2.7V–5.5V; dropout as low as 150mV enables use with LDOs or battery rails |
| OUTS (Pin 5) | Sense output | Provides feedback to internal amplifier; route close to load to compensate trace resistance |
| OUTF (Pin 6) | Force output | Delivers regulated 1.8V; short to OUTS near load to maintain accuracy under varying load currents |
Key Features
| Feature | Design Value |
|---|---|
| Dual force-sense outputs | Eliminates voltage error from PCB trace resistance up to 100mΩ between IC and load |
| Filter-capable noise reduction | External 0.1µF on FILTER pin cuts thermal noise by >50% in 10Hz–10kHz band |
| Low 150µA quiescent current | Reduces self-heating drift and extends battery life in portable test equipment |
| ±10mA load drive capability | Directly drives ADC reference inputs, op-amp bias networks, or DAC gain-setting resistors |
| AEC-Q100 qualified | Validated for automotive applications including engine control and ADAS sensor modules |
Applications
| High-Resolution ADC Reference | Precision Current Source |
|---|---|
Use Scenario: Biasing the reference input of a 24-bit delta-sigma ADC in a weigh scale transducer interface. IC Role / Device Role / Timing Role: Provides stable 1.8V reference with <0.001% full-scale error contribution over temperature. Use Value: Enables 1:1,000,000 dynamic range without calibration, meeting OIML R76 Class III accuracy. | Use Scenario: Generating a precise 100µA excitation current for a 3-wire RTD sensor in a PLC analog input module. IC Role / Device Role / Timing Role: Supplies regulated 1.8V to a matched resistor network driving an op-amp current mirror. Use Value: Limits RTD measurement error to <0.1°C over –25°C to +85°C ambient. |
| Automotive Sensor Signal Chain | Portable Precision Instrumentation |
Use Scenario: Referencing a CAN-connected pressure sensor ASIC in an EV battery pack monitoring system. IC Role / Device Role / Timing Role: Delivers AEC-Q100-compliant 1.8V reference with 85dB PSRR to reject switching noise from nearby DC-DC converters. Use Value: Prevents false fault triggers during 12V rail transients, meeting ISO 16750-2 pulse 4 immunity. | Use Scenario: Powering the reference stage of a handheld 6½-digit multimeter with autoranging capability. IC Role / Device Role / Timing Role: Serves as primary voltage reference for dual-slope integrator and auto-zero amplifier stages. Use Value: Achieves 10ppm linearity and <1µV long-term drift over 1000 hours, supporting NIST-traceable calibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF3418RTER | Lower 3.8µVP-P noise but higher 200µA IQ; no force-sense outputs | Lacks trace-resistance compensation - requires careful layout for <0.01% accuracy | Select when ultra-low noise dominates over layout flexibility and power budget permits +50µA |
| ADR4518BRTZ-REEL7 | Higher 0.02% initial accuracy, 3ppm/°C drift, but 4.5mA IQ and SOIC-8 package | Requires larger PCB area and heatsinking; not AEC-Q100 qualified | Select for lab-grade metrology where drift performance outweighs size/power constraints |
Compared with REF3418RTER and ADR4518BRTZ-REEL7, the MAX6070AAUT18+T uniquely balances ultra-low noise, force-sense accuracy, AEC-Q100 qualification, and SOT23 compactness - making it optimal for space-constrained automotive and industrial systems demanding both precision and robustness.
Availability
MAX6070AAUT18+T is available at Aetrix Electronics and suitable for high-accuracy industrial and process control, precision instrumentation, and automotive sensor applications requiring stable component supply across extended temperature ranges.
Supply support for MAX6070AAUT18+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 belongs to Analog Devices' precision voltage reference product line, engineered specifically for applications demanding sub-10µVP-P noise, ppm-level drift stability, and force-sense topology - targeting high-end data acquisition and safety-critical sensor interfaces.
FAQ
What is the maximum load current supported by the MAX6070AAUT18+T?
The MAX6070AAUT18+T supports ±10mA of load current - meaning it can source up to +10mA to a load or sink up to –10mA from a load while maintaining regulation within specifications. This capability allows direct driving of ADC reference inputs, op-amp bias networks, and precision current sources without external buffers. The device remains stable across this full range with proper output capacitance (0.1µF–10µF).
Does the MAX6070AAUT18+T require an external capacitor on the FILTER pin?
No, the FILTER pin on the MAX6070AAUT18+T is optional. Connecting a 0.1µF capacitor from FILTER to ground reduces high-frequency thermal noise (10Hz–10kHz) by up to 50%, but the device functions fully without it. When omitted, only 1/f noise (0.1Hz–10Hz) applies. Designers should include the capacitor only when wideband noise performance is critical - e.g., in audio-grade or RF sampling applications.
How does the force-sense topology of the MAX6070AAUT18+T improve accuracy?
The MAX6070AAUT18+T uses separate OUTF (force) and OUTS (sense) pins to eliminate voltage drop errors caused by PCB trace resistance between the IC and load. By routing the sense line directly to the load point and feeding it back to the internal error amplifier, the device actively regulates the voltage *at the load*, compensating for up to ~100mΩ of series resistance. This ensures ±0.04% accuracy is maintained regardless of board layout or current level - unlike single-output references.
Is the MAX6070AAUT18+T qualified for automotive applications?
Yes, the MAX6070AAUT18+T is AEC-Q100 qualified (Grade 1: –40°C to +125°C), making it suitable for automotive applications including engine control units, battery management systems, and ADAS sensor interfaces. Its 85dB ripple rejection, low dropout, and force-sense architecture ensure reliable operation amid noisy 12V rail transients and thermal cycling - validated per AEC-Q100 stress test conditions.
What is the typical turn-on settling time for the MAX6070AAUT18+T?
The MAX6070AAUT18+T achieves 0.01% output settling in 6.2ms when the FILTER pin is bypassed with 0.1µF, as specified in the Electrical Characteristics table for VOUT = 1.800V. This settling behavior is consistent across the –40°C to +125°C operating range and enables fast power-up sequencing in systems with strict wake-up timing requirements, such as battery-powered data loggers and modular sensor nodes.
MAX6070AAUT18+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):
- 1.8V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±0.04%
- Temperature Coefficient:
- 6ppm/°C
- Noise - 0.1Hz to 10Hz:
- 6µVp-p
- Noise - 10Hz to 10kHz:
- 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
MAX6070AAUT18+T FAQ
1.How can I place an order for MAX6070AAUT18+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6070AAUT18+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 MAX6070AAUT18+T reliable?
The price and inventory of MAX6070AAUT18+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6070AAUT18+T is usually 5 days.
3.What payment methods are accepted for MAX6070AAUT18+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6070AAUT18+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6070AAUT18+T?
MAX6070AAUT18+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6070AAUT18+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 MAX6070AAUT18+T?
For technical support, including MAX6070AAUT18+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6070AAUT18+T requirements.
6.How does Aetrix verify that MAX6070AAUT18+T is sourced from the original manufacturer or authorized distributors?
All MAX6070AAUT18+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 MAX6070AAUT18+T meets industry standards.
7.What is the process for return or replacement of MAX6070AAUT18+T?
All MAX6070AAUT18+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6070AAUT18+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 MAX6070AAUT18+T part is unused and in its original packaging.
Return procedure for MAX6070AAUT18+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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