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Analog Devices Inc./Maxim Integrated MAX6070AAUT41+T
- Part No.:
- MAX6070AAUT41+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- SOT-23-6
- Datasheet:
-
MAX6070AAUT41+T.pdf
- Description:
- IC VREF SERIES 0.04% SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:987
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Product details
Overview
MAX6070AAUT41+T from Analog Devices is a precision 4.096V series voltage reference IC in a 6-pin SOT23 package, featuring 4.8µVP-P (0.1Hz–10Hz) low-frequency noise, ±0.04% initial accuracy, and 6ppm/°C max temperature drift (A grade). It sources/sinks ±10mA, operates from 4.3V to 5.5V input, and supports high-accuracy ADC/DAC biasing in industrial process control systems.
For engineers reviewing the MAX6070AAUT41+T datasheet, MAX6070AAUT41+T pinout, MAX6070AAUT41+T application, or MAX6070AAUT41+T equivalent, key selection criteria include its 4.096V output matched to 12-bit DAC full-scale, filter-enabled wideband noise suppression, and AEC-Q100 qualification for automotive-grade stability across –40°C to +125°C.
Technical Context
The MAX6070AAUT41+T implements a bandgap-based series voltage reference architecture with separate force (OUTF) and sense (OUTS) outputs, enabling Kelvin sensing to eliminate PCB trace resistance errors. Its integrated FILTER pin accepts an external 0.1µF capacitor to suppress high-frequency noise beyond 10Hz-critical for 16+ bit data converter applications.
It features active enable control (EN), shutdown current of ≤6µA, and dropout voltage as low as 60mV at 10mA load. The device maintains 80dB PSRR at 60Hz and exhibits <85ppm thermal hysteresis over temperature cycling-ensuring repeatability in closed-loop calibration systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096V - precisely matches 12-bit full-scale reference for SAR and sigma-delta ADCs/DACs |
| Initial Accuracy | ±0.04% at +25°C - enables single-point calibration in high-end instrumentation |
| Temp Drift (max) | 6ppm/°C (A grade) - ensures ≤±0.5mV drift over –40°C to +125°C operating range |
| 1/f Noise | 4.8µVP-P (0.1Hz–10Hz) - minimizes low-frequency error in precision weigh scales and sensor front-ends |
| Supply Current | 150µA typical - supports ultra-low-power battery-operated portable test equipment |
| Load Drive | ±10mA sourcing/sinking - eliminates need for external buffer in moderate-current reference distribution |
| Dropout Voltage | 60mV min at 10mA - allows operation from 4.3V supply while maintaining 4.096V output |
Pinout & Package
Package: 6-pin SOT23 (package code U6+5), footprint compatible with JEDEC MO-178AB, thermal resistance θJA = 230°C/W on multilayer board.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - FILTER | High-frequency noise bypass input | Accepts 0.1µF capacitor to GND; enables >10kHz noise filtering without affecting DC accuracy |
| 2 - GNDF | Force ground return | Carries reference output current return path; must be routed separately from signal ground to avoid IR drop |
| 3 - EN | Enable control input | Logic-high (>0.7×VIN) activates reference; logic-low (<0.3×VIN) reduces supply current to ≤6µA |
| 4 - IN | Positive supply input | Operates from 4.3V to 5.5V; internal regulation rejects ripple up to 80dB at 60Hz |
| 5 - OUTS | Sense output | Connects directly to load ground point; used with OUTF for Kelvin sensing to cancel trace resistance error |
| 6 - OUTF | Force output | Delivers regulated 4.096V; bypassed with 0.1–10µF capacitor to GNDF for stability under dynamic loads |
Key Features
| Feature | Design Value |
|---|---|
| Separate force/sense outputs | Enables true Kelvin connection-eliminates voltage error from PCB trace resistance up to 100mΩ |
| Integrated noise filter option | External capacitor on FILTER pin reduces thermal noise by 3× (to 3µVRMS) above 10Hz |
| AEC-Q100 qualified | Validated for automotive applications including engine control modules and ADAS sensor interfaces |
| Low long-term drift | ≤40ppm shift after 1000 hours - supports 10-year calibration intervals in medical diagnostic equipment |
| Wide capacitive-load stability | Stable with 0.1µF to 10µF output capacitance - simplifies layout for varying board parasitics |
Applications
| High-Resolution Data Acquisition | Precision Current Source |
|---|---|
|
Use Scenario: 24-bit sigma-delta ADC in industrial weigh scale with 0.001% linearity requirement. IC Role / Device Role / Timing Role: Provides stable 4.096V reference for ADC full-scale calibration and ratiometric sensor excitation. Use Value: 4.8µVP-P 1/f noise and 6ppm/°C drift ensure <±1 LSB error over temperature and time. |
Use Scenario: Programmable 4–20mA transmitter with HART modulation requiring stable loop reference. IC Role / Device Role / Timing Role: Sets precise current mirror ratio via 4.096V reference applied to transconductance amplifier. Use Value: ±10mA drive capability eliminates external op-amp buffer; 0.04% accuracy enables Class A transmitter certification. |
| Automotive Sensor Interface | Portable Test Equipment |
|
Use Scenario: Pressure sensor signal conditioning module in brake-by-wire ECU operating at 125°C ambient. IC Role / Device Role / Timing Role: Supplies reference voltage to analog front-end PGA and ADC in ASIL-B compliant subsystem. Use Value: AEC-Q100 qualification and guaranteed performance from –40°C to +125°C ensure functional safety compliance. |
Use Scenario: Handheld multimeter with autoranging 6½-digit display requiring low-drift reference during battery operation. IC Role / Device Role / Timing Role: Primary reference for dual-slope integrator and auto-zero amplifier stages. Use Value: 150µA quiescent current extends battery life; 85ppm thermal hysteresis prevents calibration drift after field temperature cycling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5040IDR | 4.096V, 3ppm/°C max drift, 3.8µVP-P noise, SO-8 package, no enable or filter pin | Lacks EN/FILTER functionality; requires external enable circuitry and higher board area | Preferred when lowest possible drift dominates over feature set and size constraints |
| ADR4540BRZ | 4.096V, 3ppm/°C max drift, 5.5µVP-P noise, SO-8 package, no enable, no filter | No shutdown mode or noise-filtering capability; higher supply current (950µA) | Selected for metrology-grade stability where power and feature flexibility are secondary |
Compared with REF5040IDR and ADR4540BRZ, the MAX6070AAUT41+T trades 3ppm/°C drift for integrated enable control, filter pin, SOT23 size, and 150µA supply current-making it optimal for space-constrained, battery-aware, or noise-sensitive industrial and automotive designs.
Availability
MAX6070AAUT41+T is available at Aetrix Electronics and suitable for high-accuracy industrial process control, precision instrumentation, and automotive sensor interface applications requiring stable component supply across extended temperature ranges.
Supply support for MAX6070AAUT41+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 applications demanding ultra-low noise, low drift, and robust operation in harsh environments.
FAQ
What is the output voltage tolerance of the MAX6070AAUT41+T over temperature?
The MAX6070AAUT41+T guarantees ±0.04% initial accuracy at +25°C and a maximum temperature coefficient of 6ppm/°C (A grade) over –40°C to +125°C. This results in a total output variation of ≤±0.52mV (±127ppm) across the full temperature range, confirmed by box-method characterization per datasheet Note 2.
Does the MAX6070AAUT41+T require an external capacitor on the FILTER pin?
No-the FILTER pin on the MAX6070AAUT41+T is optional. It accepts a 0.1µF capacitor to ground only when wideband noise suppression is needed; leaving it unconnected disables the filter function while preserving all DC specifications. The device remains fully functional without it.
Can the MAX6070AAUT41+T drive a 10µF output capacitor?
Yes-the MAX6070AAUT41+T is specified for stable operation with output capacitance from 0.1µF to 10µF, as verified in Electrical Characteristics Table (Capacitive-Load Stability Range). This accommodates bulk decoupling and transient response requirements in noisy industrial environments.
How does the force/sense (OUTF/OUTS) configuration improve accuracy in the MAX6070AAUT41+T?
The MAX6070AAUT41+T uses separate OUTF (force) and OUTS (sense) pins to implement Kelvin sensing. By routing OUTS directly to the load's ground reference point, voltage drops across PCB traces or connectors are excluded from the feedback loop-reducing error from trace resistance up to 100mΩ and ensuring reference accuracy at the point of use.
Is the MAX6070AAUT41+T qualified for automotive applications?
Yes-the MAX6070AAUT41+T is AEC-Q100 qualified (Grade 1: –40°C to +125°C), with full characterization including thermal hysteresis, long-term stability, and ESD robustness per automotive reliability standards. It is documented for use in engine control, ADAS, and body electronics subsystems.
MAX6070AAUT41+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):
- 4.096V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±0.04%
- Temperature Coefficient:
- 6ppm/°C
- Noise - 0.1Hz to 10Hz:
- 9.6µVp-p
- Noise - 10Hz to 10kHz:
- 9µVrms
- Voltage - Input:
- 4.3V ~ 5.5V
- Current - Supply:
- 350µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX6070AAUT41+T FAQ
1.How can I place an order for MAX6070AAUT41+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6070AAUT41+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 MAX6070AAUT41+T reliable?
The price and inventory of MAX6070AAUT41+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6070AAUT41+T is usually 5 days.
3.What payment methods are accepted for MAX6070AAUT41+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6070AAUT41+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6070AAUT41+T?
MAX6070AAUT41+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6070AAUT41+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 MAX6070AAUT41+T?
For technical support, including MAX6070AAUT41+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6070AAUT41+T requirements.
6.How does Aetrix verify that MAX6070AAUT41+T is sourced from the original manufacturer or authorized distributors?
All MAX6070AAUT41+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 MAX6070AAUT41+T meets industry standards.
7.What is the process for return or replacement of MAX6070AAUT41+T?
All MAX6070AAUT41+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6070AAUT41+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 MAX6070AAUT41+T part is unused and in its original packaging.
Return procedure for MAX6070AAUT41+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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