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Analog Devices Inc./Maxim Integrated MAX6070BAUT41/V+
- Part No.:
- MAX6070BAUT41/V+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- SOT-23-6
- Datasheet:
-
MAX6070BAUT41/V+.pdf
- Description:
- LOW-NOISE, HIGH-PRECISION SERIES
- Quantity:
- Payment:
- Shipping:
Inventory:2,499
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Product details
Overview
MAX6070BAUT41/V+ 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, 6ppm/°C max temperature drift (A grade), and ±0.04% initial accuracy - enabling high-accuracy ADC/DAC biasing in industrial process control systems.
For engineers reviewing the MAX6070BAUT41/V+ datasheet, MAX6070BAUT41/V+ pinout, MAX6070BAUT41/V+ application, or MAX6070BAUT41/V+ equivalent, key selection criteria include its filter-enabled wideband noise suppression, 10mA bidirectional load capability, 2.7V to 5.5V input range, and AEC-Q100 qualification for automotive-grade stability.
Technical Context
The MAX6070BAUT41/V+ implements a bandgap-based series reference architecture with separate force (OUTF) and sense (OUTS) outputs, supporting Kelvin sensing to reject PCB trace resistance errors. Its integrated FILTER pin accepts an external 0.1µF capacitor to suppress high-frequency noise above 10Hz.
It operates across –40°C to +125°C with 150µA typical supply current and delivers stable 4.096V output even under 10mA sourcing/sinking loads, maintaining ≤0.2% line regulation over VIN = 4.3V to 5.5V and ≤0.17% load regulation across full current range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096V ±0.04% at +25°C - matches common 12-bit DAC/ADC full-scale reference points with minimal calibration overhead |
| Temp Drift (max) | 6ppm/°C (A grade) - ensures <±0.5mV total drift over –40°C to +125°C for sub-16-bit system accuracy |
| 1/f Noise | 4.8µVP-P (0.1Hz–10Hz) - enables <16-bit effective resolution in precision data acquisition without external filtering |
| Supply Current | 150µA typ - supports ultra-low-power battery-operated instrumentation and sensor nodes |
| Load Current | ±10mA - drives multiple op-amp references or ADC reference inputs directly without buffering |
| Dropout Voltage | 60mV min (at 10mA) - allows operation from 4.156V supply, compatible with 4.2V Li-ion single-cell systems |
| Ripple Rejection | 74dB at 60Hz - suppresses power-supply hum in AC-powered test equipment and PLC analog modules |
Pinout & Package
Package: 6-pin SOT23 (U6+5/U6+5A), 2.9mm × 1.6mm × 1.1mm body, RoHS-compliant, thermal resistance θJA = 230°C/W on multilayer board.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FILTER | High-frequency bypass input | Accepts 0.1µF capacitor to GND; enables >10kHz noise filtering without affecting DC accuracy |
| GNDF | Force ground return | Carries reference output current return path; must be routed separately from GNDS to avoid IR drop error |
| EN | Enable control input | Active-high logic (VIH ≥ 0.7×VIN); enables 6ms turn-on settling and reduces quiescent current to 6µA in shutdown |
| IN | Positive supply input | Accepts 4.3V–5.5V; internal LDO regulates reference core, rejecting supply ripple up to 74dB |
| OUTS | Sense output terminal | Connects to load ground point; used with OUTF in Kelvin configuration to eliminate PCB trace resistance error |
| OUTF | Force output terminal | Delivers regulated 4.096V; bypassed with 0.1µF–10µF capacitor to GNDF for stability and noise reduction |
Key Features
| Feature | Design Value |
|---|---|
| Separate force/sense outputs | Enables true Kelvin connection to eliminate voltage drop errors from PCB traces or connectors |
| Integrated noise filter option | FILTER pin supports external capacitor to reduce thermal noise above 10Hz without degrading DC specs |
| AEC-Q100 qualified | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| Low 150µA quiescent current | Permits use in always-on monitoring circuits with multi-year battery life (e.g., 250mAh coin cell > 19 years) |
| ±10mA bidirectional drive | Directly powers reference inputs of multiple SAR ADCs or precision op-amps without external buffers |
Applications
| High-Resolution Data Acquisition | Precision Current Source Calibration |
|---|---|
Use Scenario: 24-bit delta-sigma ADC front-end in portable environmental sensor node requiring <1ppm measurement stability over temperature. IC Role / Device Role / Timing Role: Provides ultra-stable 4.096V reference for ADC VREF input, with Kelvin sensing eliminating PCB copper resistance effects. Use Value: Achieves 0.0015% THD+N and <1LSB INL error across –25°C to +85°C due to 6ppm/°C drift and 4.8µVP-P noise. | Use Scenario: Programmable 4–20mA transmitter in hazardous-area process control loop where field device calibration must remain valid for 10+ years. IC Role / Device Role / Timing Role: Sets precise 4.096V reference for DAC-based current loop controller; long-term stability (35ppm/1000h) minimizes recalibration frequency. Use Value: Enables <±0.02% full-scale accuracy over 15-year product lifetime, meeting IEC 61511 SIL-2 functional safety requirements. |
| Automotive Battery Management | Industrial PLC Analog Input Module |
Use Scenario: Cell voltage monitoring in 12S Li-ion BMS where reference accuracy directly impacts state-of-charge estimation fidelity. IC Role / Device Role / Timing Role: Supplies 4.096V reference to multiplexed 16-bit SAR ADC measuring individual cell voltages; AEC-Q100 qualification ensures reliability under vibration and thermal cycling. Use Value: Maintains <±1.5mV absolute error from –40°C to +105°C, improving SOC accuracy by 0.8% over competing references. | Use Scenario: 8-channel 16-bit analog input module in factory automation PLC requiring simultaneous sampling with <0.01% cross-channel gain matching. IC Role / Device Role / Timing Role: Single shared reference for all eight ADC channels; low 150µA supply current prevents localized heating that causes thermal mismatch. Use Value: Delivers <0.005% channel-to-channel gain error across temperature due to matched thermal coefficients and low self-heating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR4540BRZ | 4.096V, 3ppm/°C max drift, 1.8µVP-P noise, SOIC-8 package, no FILTER pin | Higher accuracy but larger footprint and no high-frequency noise filter option | Select when ultimate drift performance is required and board space permits SOIC-8; not suitable for compact SOT23 layouts |
| REF5040AIDR | 4.096V, 3ppm/°C max drift, 5.5µVP-P noise, SOIC-8, no enable/shutdown | Lacks EN pin and FILTER option; higher supply current (950µA) | Choose for legacy designs using TI's REF50 family; avoid when low power or noise filtering is critical |
Compared with ADR4540BRZ and REF5040AIDR, the MAX6070BAUT41/V+ uniquely combines SOT23 size, integrated noise filtering, and AEC-Q100 qualification - making it optimal for space-constrained automotive and industrial modules where wideband noise rejection and qualification compliance are mandatory.
Availability
MAX6070BAUT41/V+ is available at Aetrix Electronics and suitable for high-accuracy industrial process control, precision instrumentation, and automotive battery management systems requiring stable component supply and long-term parametric consistency.
Supply support for MAX6070BAUT41/V+ 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 in harsh environments.
FAQ
What is the maximum input voltage for MAX6070BAUT41/V+?
The MAX6070BAUT41/V+ supports a maximum supply voltage of 5.5V. Its specified input range is 4.3V to 5.5V for the 4.096V output variant, ensuring reliable operation with standard 5V rails while maintaining 60mV minimum dropout at full 10mA load. Exceeding 5.5V violates absolute maximum ratings and may cause permanent damage.
Does MAX6070BAUT41/V+ require an external capacitor on the FILTER pin?
No, the FILTER pin on MAX6070BAUT41/V+ is optional. It should be connected to ground via a 0.1µF capacitor only when high-frequency noise suppression (above 10Hz) is required. Leaving it unconnected disables the filter function while preserving all DC specifications including accuracy, drift, and noise below 10Hz.
Can MAX6070BAUT41/V+ drive a 10kΩ load directly?
Yes, MAX6070BAUT41/V+ can drive a 10kΩ load directly. With 4.096V output and ±10mA load capability, it supports loads down to 409.6Ω (4.096V/10mA). A 10kΩ load draws only 409.6µA - well within spec - and introduces negligible error (<0.002% load regulation) due to its low 75µV/mA source regulation.
Is MAX6070BAUT41/V+ pin-compatible with other MAX6070 variants?
Yes, all MAX6070 variants including MAX6070BAUT41/V+ share identical 6-pin SOT23 pinout and electrical interface. The suffix "AUT41" denotes the 4.096V output and A-grade (6ppm/°C max drift) specification, but pin functions (FILTER, GNDF, EN, IN, OUTS, OUTF), timing, and enable behavior are fully consistent across the MAX6070 family.
What is the purpose of separate GNDF and OUTS pins on MAX6070BAUT41/V+?
The GNDF (force ground) and OUTS (sense output) pins on MAX6070BAUT41/V+ enable a 4-wire Kelvin connection. GNDF carries the reference output current return, while OUTS senses voltage at the load ground point - allowing the device to compensate for voltage drop across PCB traces or connectors, achieving <0.001% gain error in precision measurement systems.
MAX6070BAUT41/V+ 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:
- ±0.08%
- Temperature Coefficient:
- 8ppm/°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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX6070BAUT41/V+ FAQ
1.How can I place an order for MAX6070BAUT41/V+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6070BAUT41/V+ 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 MAX6070BAUT41/V+ reliable?
The price and inventory of MAX6070BAUT41/V+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6070BAUT41/V+ is usually 5 days.
3.What payment methods are accepted for MAX6070BAUT41/V+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6070BAUT41/V+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6070BAUT41/V+?
MAX6070BAUT41/V+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6070BAUT41/V+ 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 MAX6070BAUT41/V+?
For technical support, including MAX6070BAUT41/V+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6070BAUT41/V+ requirements.
6.How does Aetrix verify that MAX6070BAUT41/V+ is sourced from the original manufacturer or authorized distributors?
All MAX6070BAUT41/V+ 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 MAX6070BAUT41/V+ meets industry standards.
7.What is the process for return or replacement of MAX6070BAUT41/V+?
All MAX6070BAUT41/V+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6070BAUT41/V+, 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 MAX6070BAUT41/V+ part is unused and in its original packaging.
Return procedure for MAX6070BAUT41/V+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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