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Analog Devices Inc./Maxim Integrated MAX6070BAUT25+T
- Part No.:
- MAX6070BAUT25+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- SOT-23-6
- Datasheet:
-
MAX6070BAUT25+T.pdf
- Description:
- IC VREF SERIES 0.08% SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:4,146
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Product details
Overview
MAX6070BAUT25+T from Analog Devices is a precision 2.5V series voltage reference IC with ultra-low 1/f noise (4.8µVP-P, 0.1Hz–10Hz), 6ppm/°C max temperature drift (A grade), and ±0.04% initial accuracy - designed for high-resolution ADC/DAC biasing in industrial process control systems requiring stable, low-drift excitation.
For engineers reviewing the MAX6070BAUT25+T datasheet, MAX6070BAUT25+T pinout, MAX6070BAUT25+T application, or MAX6070BAUT25+T equivalent, key selection criteria include its dual-output force-sense architecture, integrated noise filter option, 150µA quiescent current, and AEC-Q100 qualification for automotive-grade reliability.
Technical Context
The MAX6070BAUT25+T implements a bandgap-based series voltage reference with separate force (OUTF) and sense (OUTS) outputs to reject PCB trace resistance errors, enabling true Kelvin sensing at the load. Its internal filter pin supports external 0.1µF capacitor connection to suppress wideband noise above 10Hz.
It operates across –40°C to +125°C with 2.8V to 5.5V input supply, delivers ±10mA output current, and features enable-controlled shutdown (6µA ISD) and 230mV max dropout at 10mA load - optimized for low-voltage, high-accuracy analog signal chains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.500V ±0.04% at +25°C - ensures direct compatibility with 2.5V ADC reference inputs without calibration |
| Temp Drift (max) | 6ppm/°C (A grade) - limits full-scale error to <±0.015% over –40°C to +125°C |
| 1/f Noise | 4.8µVP-P (0.1Hz–10Hz) - preserves ENOB in 20-bit+ SAR and delta-sigma converters |
| Quiescent Current | 150µA typical - enables battery-powered instrumentation with >10-year runtime |
| Dropout Voltage | 230mV max at 10mA - supports operation from 2.73V supply in 3.3V rail-constrained designs |
| Ripple Rejection | 84dB at 60Hz - rejects power-supply coupling in noisy industrial environments |
| Enable Logic | VIH = 0.7×VIN, VIL = 0.3×VIN - compatible with 1.8V/3.3V/5V GPIO without level-shifting |
Pinout & Package
Package: 6-pin SOT23 (U6+5A outline), RoHS-compliant, thermal resistance θJA = 230°C/W on multilayer board.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FILTER | Noise filter input | Accepts 0.1µF capacitor to GND to reduce thermal noise above 10Hz; leave open if unused |
| GNDF | Force ground | Return path for OUTF; must be tied to GND near device to minimize ground loop error |
| EN | Enable control | Active-high digital input; drives device into 6µA shutdown when low |
| IN | Supply input | Accepts 2.8V–5.5V unregulated input; requires local 0.1µF bypass to GNDF |
| OUTS | Sense output | Feedback node connected directly to load ground - enables remote sensing compensation |
| OUTF | Force output | Delivers regulated 2.5V to load; short to OUTS at load point for Kelvin connection |
Key Features
| Feature | Design Value |
|---|---|
| Force-sense output architecture | Eliminates voltage drop error from PCB trace resistance up to 1Ω between reference and load |
| Integrated noise filter option | Reduces 10Hz–10kHz thermal noise by >50% (to 3µVRMS) via external 0.1µF capacitor |
| Low 150µA supply current | Enables always-on precision biasing in energy-harvesting and portable test equipment |
| AEC-Q100 qualified | Validated for automotive applications including engine control modules and ADAS sensor interfaces |
| 0.1µF–10µF capacitive-load stability | Supports direct connection to large ADC reference decoupling caps without oscillation risk |
Applications
| High-Resolution Data Acquisition | Precision Current Source Calibration |
|---|---|
Use Scenario: 24-bit delta-sigma ADC in weigh scale front-end measuring microvolt-level bridge signals. IC Role / Device Role / Timing Role: Provides ultra-stable 2.5V reference for ADC VREF input and excitation voltage for load cell. Use Value: 4.8µVP-P noise and 6ppm/°C drift ensure <±1 LSB error over temperature and time. | Use Scenario: Programmable 4–20mA transmitter with HART modulation requiring calibrated current output. IC Role / Device Role / Timing Role: Supplies precise 2.5V reference to DAC and op-amp feedback network generating output current. Use Value: ±0.04% initial accuracy and 35ppm long-term stability eliminate factory recalibration cycles. |
| Automotive Sensor Signal Conditioning | Industrial Process Controller Reference |
Use Scenario: Pressure sensor interface in engine manifold monitoring under under-hood temperatures. IC Role / Device Role / Timing Role: Delivers stable 2.5V bias to sensor amplifier and ADC reference in AEC-Q100-compliant module. Use Value: Operation from –40°C to +125°C with 85ppm thermal hysteresis ensures repeatable readings after thermal cycling. | Use Scenario: PLC analog input module digitizing 4–20mA field signals in chemical plant control cabinets. IC Role / Device Role / Timing Role: Serves as master reference for multiple 16-bit SAR ADCs sharing common VREF bus. Use Value: Force-sense outputs maintain <±0.01% accuracy despite 50mΩ PCB trace resistance to remote ADCs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR4525BRZ | Higher initial accuracy (±0.02%), lower noise (3.5µVP-P), but no filter pin or force-sense outputs | Lacks Kelvin sensing; unsuitable for long-trace or high-current load scenarios | Select when ultimate noise/accuracy is prioritized over layout flexibility and load regulation |
| REF5025IDR | Lower temp drift (3ppm/°C max), higher supply current (950µA), no enable/shutdown | Not AEC-Q100 qualified; consumes >6× more power; fixed ON-state operation | Select for lab-grade instrumentation where power and automotive compliance are not constraints |
Compared with ADR4525BRZ and REF5025IDR, the MAX6070BAUT25+T uniquely balances ultra-low noise, force-sense topology, and automotive qualification - making it optimal for space-constrained, high-reliability industrial and automotive data acquisition where trace resistance and thermal stability are critical.
Availability
MAX6070BAUT25+T is available at Aetrix Electronics and suitable for high-accuracy industrial and process control, precision instrumentation, and automotive sensor signal conditioning requiring stable component supply across extended temperature ranges.
Supply support for MAX6070BAUT25+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 robust operation in harsh environments.
FAQ
What is the maximum load current supported by the MAX6070BAUT25+T?
The MAX6070BAUT25+T supports ±10mA output current - meaning it can both source and sink up to 10mA while maintaining regulation and specified accuracy. This capability allows direct driving of ADC reference inputs, DAC bias networks, and op-amp feedback circuits without external buffers, simplifying system design for precision analog signal chains.
How does the FILTER pin function in the MAX6070BAUT25+T?
The FILTER pin on the MAX6070BAUT25+T accepts an external 0.1µF capacitor to ground to suppress high-frequency thermal noise (10Hz–10kHz). When used, it reduces RMS noise from 6µV to 3µV - a >50% improvement critical for high-resolution ADC applications. Leaving the pin unconnected disables this feature, retaining only the inherent 4.8µVP-P 1/f noise performance of the MAX6070BAUT25+T.
Is the MAX6070BAUT25+T AEC-Q100 qualified?
Yes, the MAX6070BAUT25+T is AEC-Q100 qualified per the manufacturer's ordering information. This certification confirms its reliability for automotive applications including engine control units, battery management systems, and ADAS sensor interfaces operating across –40°C to +125°C ambient temperatures with validated ESD, latch-up, and thermal cycling performance.
What is the purpose of the separate OUTF and OUTS pins on the MAX6070BAUT25+T?
The MAX6070BAUT25+T uses separate OUTF (force) and OUTS (sense) pins to implement Kelvin sensing - compensating for voltage drop across PCB traces or connectors between the reference and load. By routing OUTS directly to the load ground and shorting OUTF to OUTS at the load, the MAX6070BAUT25+T maintains 2.5V accuracy regardless of up to 1Ω series resistance, essential for high-precision measurement systems.
What is the typical supply current of the MAX6070BAUT25+T at room temperature?
The MAX6070BAUT25+T draws 150µA typical quiescent supply current at +25°C, with a maximum of 235µA across the full –40°C to +125°C range. This ultra-low current enables use in always-on, battery-powered instrumentation and portable test equipment where energy efficiency is critical - supporting multi-year operation on coin-cell batteries when paired with low-power microcontrollers and ADCs.
MAX6070BAUT25+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):
- 2.5V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±0.08%
- Temperature Coefficient:
- 8ppm/°C
- Noise - 0.1Hz to 10Hz:
- 4.8µVp-p
- Noise - 10Hz to 10kHz:
- 3µVrms
- Voltage - Input:
- 2.8V ~ 5.5V
- Current - Supply:
- 300µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX6070BAUT25+T FAQ
1.How can I place an order for MAX6070BAUT25+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6070BAUT25+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 MAX6070BAUT25+T reliable?
The price and inventory of MAX6070BAUT25+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6070BAUT25+T is usually 5 days.
3.What payment methods are accepted for MAX6070BAUT25+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6070BAUT25+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6070BAUT25+T?
MAX6070BAUT25+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6070BAUT25+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 MAX6070BAUT25+T?
For technical support, including MAX6070BAUT25+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6070BAUT25+T requirements.
6.How does Aetrix verify that MAX6070BAUT25+T is sourced from the original manufacturer or authorized distributors?
All MAX6070BAUT25+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 MAX6070BAUT25+T meets industry standards.
7.What is the process for return or replacement of MAX6070BAUT25+T?
All MAX6070BAUT25+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6070BAUT25+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 MAX6070BAUT25+T part is unused and in its original packaging.
Return procedure for MAX6070BAUT25+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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