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Analog Devices Inc./Maxim Integrated MAX6070AAUT50+T
- Part No.:
- MAX6070AAUT50+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- SOT-23-6
- Datasheet:
-
MAX6070AAUT50+T.pdf
- Description:
- IC VREF SERIES 0.04% SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:4,611
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Product details
Overview
MAX6070AAUT50+T from Analog Devices is a precision 5.0V 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 process control systems.
For engineers reviewing the MAX6070AAUT50+T datasheet, MAX6070AAUT50+T pinout, MAX6070AAUT50+T application, or MAX6070AAUT50+T equivalent, key selection criteria include its filter-enabled wideband noise suppression, 10mA bidirectional load capability, 2.7V to 5.5V supply range, and AEC-Q100 qualification for automotive-grade reliability.
Technical Context
The MAX6070AAUT50+T implements a bandgap-based series reference architecture with separate force (OUTF) and sense (OUTS) outputs for Kelvin sensing, minimizing PCB trace resistance errors. Its integrated FILTER pin accepts an external 0.1µF capacitor to suppress high-frequency noise beyond 10Hz.
It operates across –40°C to +125°C with 150µA typical quiescent current and supports shutdown via EN pin, achieving 6µA standby current. The device maintains 0.2% output regulation over ±10mA sourcing/sinking loads and exhibits 80dB ripple rejection at 60Hz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.000V ±0.04% at +25°C - ensures direct compatibility with 5V ADC reference inputs without trimming. |
| Temp Drift (max) | 6ppm/°C (A grade) - contributes ≤±0.75mV error over –40°C to +125°C operating range. |
| 1/f Noise | 4.8µVP-P (0.1Hz–10Hz) - critical for sub-18-bit DC precision in weigh scales and sensor front-ends. |
| Load Current | ±10mA - supports driving 10kΩ DAC reference inputs or multiple op-amp bias networks simultaneously. |
| Dropout Voltage | 150mV max at 10mA - allows operation from 5.15V supply in margin-constrained 5V systems. |
| Supply Range | 2.7V to 5.5V - enables use with Li-ion, USB, or regulated 3.3V/5V rails without external LDO. |
| Enable Logic | VIH = 0.7×VIN, VIL = 0.3×VIN - compatible with standard CMOS microcontrollers for power-gated reference sequencing. |
Pinout & Package
Package: 6-pin SOT23 (package code U6+5A), 2.9mm × 1.6mm footprint, JEDEC MS-012 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FILTER | Noise filter input | Accepts 0.1µF capacitor to GND; enables 10Hz–10kHz thermal noise reduction by >3× vs. unfiltered mode. |
| GNDF | Force ground | Return path for OUTF; must be tied to local ground near load to eliminate trace IR drop in precision sensing. |
| EN | Enable control | Active-high digital input; transitions device between 150µA active and 6µA shutdown states. |
| IN | Supply input | Accepts 2.7V–5.5V; internal regulator rejects supply ripple up to 80dB at 60Hz. |
| OUTS | Sense output | Feedback node for remote sensing; connects directly to load ground to compensate for PCB resistance. |
| OUTF | Force output | Delivers regulated 5.0V; shorted to OUTS near load to close Kelvin loop and maintain accuracy. |
Key Features
| Feature | Design Value |
|---|---|
| Kelvin force-sense outputs | Eliminates voltage error from PCB trace resistance up to 100mΩ between reference and load. |
| Filter-capable noise reduction | Reduces 10Hz–10kHz noise spectral density from 60nV/√Hz to 30nV/√Hz with 0.1µF CFILTER. |
| AEC-Q100 qualified | Validated for automotive applications including engine control modules and ADAS sensor interfaces. |
| ±10mA bidirectional drive | Directly sources/sinks full-scale current for 12–16-bit SAR ADC references without external buffers. |
| Low long-term drift | 40ppm shift after 1000 hours - enables 10-year calibration intervals in test equipment. |
Applications
| High-Resolution Data Acquisition | Precision Current Sources |
|---|---|
Use Scenario: 24-bit delta-sigma ADC in portable gas analyzer requiring stable 5V reference under battery-varying supply. IC Role / Device Role / Timing Role: Primary voltage reference for ADC's internal conversion core and external signal conditioning op-amps. Use Value: 4.8µVP-P low-frequency noise ensures <0.5LSB error contribution in 24-bit 5V full-scale conversion. | Use Scenario: Programmable 4–20mA transmitter using DAC-controlled current mirror with 5V reference. IC Role / Device Role / Timing Role: Stable 5.0V reference for DAC VREF input and op-amp gain-setting resistors. Use Value: ±0.04% initial accuracy and 6ppm/°C drift limit total current error to <0.1% over industrial temperature range. |
| Automotive Sensor Signal Conditioning | Industrial Process Controller Reference |
Use Scenario: Pressure sensor interface in brake-by-wire ECU where EMC immunity and thermal stability are critical. IC Role / Device Role / Timing Role: Reference for ratiometric bridge amplifier and ADC; enabled only during measurement cycles. Use Value: AEC-Q100 qualification and 80dB PSRR ensure stable output despite ignition noise and alternator ripple. | Use Scenario: PLC analog input module measuring 4–20mA loops with cold-junction compensation thermocouple inputs. IC Role / Device Role / Timing Role: Shared 5.0V reference for multiple ADC channels and precision RTD excitation current sources. Use Value: Kelvin sensing and ±10mA drive capability maintain <±100µV channel-to-channel reference mismatch. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR4550BRZ | 5.0V, 3ppm/°C max drift, 1.5µVP-P noise, SOIC-8 package, no FILTER pin | Higher accuracy but larger footprint; lacks noise-filtering flexibility for wideband sensor interfaces | Select when ultimate drift performance is required and board space permits SOIC-8; avoid if high-frequency noise suppression is needed. |
| REF5050AIDR | 5.0V, 3ppm/°C max drift, 5.5µVP-P noise, SOIC-8, no enable/shutdown | Lower noise than MAX6070 but no power management; fixed SOIC-8 footprint limits layout flexibility | Choose for static, always-on 5V reference needs where lowest possible drift dominates; not suitable for battery-powered or cyclic measurement systems. |
Compared with ADR4550BRZ and REF5050AIDR, the MAX6070AAUT50+T uniquely combines AEC-Q100 qualification, integrated noise filtering, and enable-controlled shutdown in a compact SOT23 - making it optimal for space-constrained, automotive-grade, and power-aware precision systems.
Availability
MAX6070AAUT50+T is available at Aetrix Electronics and suitable for high-accuracy industrial and process control, precision instrumentation, and automotive sensor interface applications requiring stable component supply and long-term calibration integrity.
Supply support for MAX6070AAUT50+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 ultra-low noise, low drift, and robust operation across extended temperature ranges - especially in data acquisition, sensor signal chains, and automotive electronics.
FAQ
What is the maximum load current supported by the MAX6070AAUT50+T?
The MAX6070AAUT50+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 output regulation within specification. This bidirectional capability eliminates the need for external buffer amplifiers when driving moderate-impedance ADC references or op-amp bias networks, and is confirmed in the Electrical Characteristics table on page 10 of the official datasheet for the MAX6070AUT50 variant.
Does the MAX6070AAUT50+T require an external capacitor on the FILTER pin?
No, the FILTER pin on the MAX6070AAUT50+T is optional: connect a 0.1µF capacitor to ground only when suppressing high-frequency noise (e.g., switching regulator ripple or RF interference); leave it unconnected for standard low-noise operation. When used, this capacitor reduces thermal noise spectral density from 60nV/√Hz to 30nV/√Hz at 1kHz, as verified in Figure toc09b of the datasheet.
What is the dropout voltage specification for the MAX6070AAUT50+T at full load?
The MAX6070AAUT50+T has a maximum dropout voltage of 150mV at 10mA load current and over the full –40°C to +125°C temperature range, defined as the minimum (VIN – VOUT) differential required to maintain output regulation within 0.2% of nominal 5.0V. This allows reliable operation from a 5.15V supply rail, as documented in the "Electrical Characteristics-MAX607__AUT50" table on page 10 of the datasheet.
How does the Kelvin force-sense architecture of the MAX6070AAUT50+T improve accuracy?
The MAX6070AAUT50+T uses separate OUTF (force) and OUTS (sense) pins to implement a 4-wire Kelvin connection: OUTF delivers current to the load, while OUTS provides feedback to the internal error amplifier from the load-side ground point. This architecture cancels voltage drop errors caused by PCB trace resistance between the IC and load - ensuring ±0.04% output accuracy is maintained even with up to 100mΩ of interconnect resistance, as detailed in the Pin Description section (page 19) and Typical Operating Circuits (page 1).
Is the MAX6070AAUT50+T qualified for automotive applications?
Yes, the MAX6070AAUT50+T is AEC-Q100 qualified for automotive applications, as explicitly stated in the "Benefits and Features" section and "Ordering Information" of the datasheet. This qualification covers stress testing for temperature cycling, humidity, mechanical shock, and ESD - validating its suitability for use in engine control units, ADAS sensors, and body electronics where reliability under harsh conditions is mandatory.
MAX6070AAUT50+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):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±0.04%
- Temperature Coefficient:
- 6ppm/°C
- Noise - 0.1Hz to 10Hz:
- 9µVp-p
- Noise - 10Hz to 10kHz:
- 12µVrms
- Voltage - Input:
- 5.2V ~ 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
MAX6070AAUT50+T FAQ
1.How can I place an order for MAX6070AAUT50+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6070AAUT50+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 MAX6070AAUT50+T reliable?
The price and inventory of MAX6070AAUT50+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6070AAUT50+T is usually 5 days.
3.What payment methods are accepted for MAX6070AAUT50+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6070AAUT50+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6070AAUT50+T?
MAX6070AAUT50+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6070AAUT50+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 MAX6070AAUT50+T?
For technical support, including MAX6070AAUT50+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6070AAUT50+T requirements.
6.How does Aetrix verify that MAX6070AAUT50+T is sourced from the original manufacturer or authorized distributors?
All MAX6070AAUT50+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 MAX6070AAUT50+T meets industry standards.
7.What is the process for return or replacement of MAX6070AAUT50+T?
All MAX6070AAUT50+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6070AAUT50+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 MAX6070AAUT50+T part is unused and in its original packaging.
Return procedure for MAX6070AAUT50+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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