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Analog Devices Inc./Maxim Integrated MAX6043AAUT41
- Part No.:
- MAX6043AAUT41
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- SOT-23-6
- Datasheet:
-
MAX6043AAUT41.pdf
- Description:
- VOLTAGE REFERENCE
- Quantity:
- Payment:
- Shipping:
Inventory:7,337
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Product details
Overview
MAX6043AAUT41 from Maxim Integrated is a precision 4.096V voltage reference IC designed for high-resolution data conversion systems. It delivers ±0.06% initial accuracy, 15ppm/°C max temperature coefficient, and 6.6µVP-P (0.1Hz–10Hz) output noise in a 6-pin SOT23 package, operating across –40°C to +125°C for automotive-grade ADC/DAC biasing.
For engineers reviewing the MAX6043AAUT41 datasheet, MAX6043AAUT41 pinout, MAX6043AAUT41 application, or MAX6043AAUT41 equivalent, this page provides verified electrical specs, validated pin functions, confirmed automotive-temperature operation, and real-world load/transient performance data directly traceable to Maxim's official documentation.
Technical Context
The MAX6043AAUT41 uses bandgap-based architecture with proprietary curvature-correction circuitry and laser-trimmed thin-film resistors to achieve its 15ppm/°C tempco and 0.06% initial accuracy. Its dual-output topology (OUTF/OUTS) enables Kelvin sensing for improved load regulation under varying current conditions.
It operates from 6.1V to 40V input, draws only 320µA quiescent current at +25°C, and remains stable without external output capacitance-supporting capacitive loads up to 100µF while delivering ±10mA sourcing capability and short-circuit protection to 60mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096V ±0.06% (±2.46mV) at +25°C - ensures ≤1 LSB error in 12-bit systems over full automotive temperature range |
| Tempco | 15ppm/°C max (–40°C to +125°C) - guarantees <±750ppm total drift across full range, critical for precision metrology |
| Noise (0.1Hz–10Hz) | 6.6µVP-P - low enough to avoid degrading ENOB in 16-bit SAR ADCs referenced to this device |
| Supply Range | +6.1V to +40V - supports direct connection to unregulated 12V/24V automotive rails without pre-regulation |
| Quiescent Current | 320µA typical at +25°C - enables >10-year battery life in portable instrumentation with 100mAh coin cells |
| Load Drive | Sources ±10mA / sinks 0.6mA - sufficient to drive ADC reference inputs and op-amp buffers without gain error |
| Stability | Stable with 0–100µF output capacitance - eliminates mandatory bypass cap, reducing BOM count and PCB area |
Pinout & Package
Package: 6-pin SOT23 (U6FH-6), RoHS-compliant, footprint outline 21-0058, land pattern 90-0175.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3 | I.C. (Internally Connected) | Unused internal node - must remain unconnected; no external trace or pad required |
| 2 | GND | Analog ground reference - requires low-impedance connection to system AGND plane for noise immunity |
| 4 | IN | Positive supply input - accepts 6.1V–40V; decoupling with 0.1µF ceramic capacitor recommended at pin |
| 5 | OUTF | Force output - drives load; connect directly to OUTS near device for 4-wire Kelvin sensing |
| 6 | OUTS | Sense input - returns feedback to internal regulator; must tie to OUTF within 1mm for accuracy |
Key Features
| Feature | Design Value |
|---|---|
| 4.096V Output | Exact match for 12-bit full-scale (4096 codes); eliminates scaling math in firmware for integer-based DAC/ADC systems |
| No External Output Cap Required | Reduces bill-of-materials cost and layout complexity - validated stable from 0 to 100µF capacitive loading |
| Automotive Temperature Range | –40°C to +125°C operation - qualified per AEC-Q100 stress test requirements for under-hood applications |
| Short-Circuit Protection | 60mA current limit on OUTF - prevents latch-up or damage during board-level fault conditions |
| Low Thermal Hysteresis | 150ppm max - ensures repeatable voltage after thermal cycling, essential for calibration-critical test equipment |
Applications
| Industrial Data Acquisition | Automotive Sensor Signal Conditioning |
|---|---|
|
Use Scenario: High-accuracy 16-bit SAR ADC in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Primary voltage reference for ADC conversion, providing stable 4.096V full-scale reference independent of supply rail variation. Use Value: Enables ≤±0.5 LSB integral nonlinearity over –25°C to +75°C ambient, meeting IEC 61000-6-2 immunity requirements. |
Use Scenario: Reference for pressure/temperature sensor front-end in engine control unit (ECU) cold-side circuits. IC Role / Device Role / Timing Role: Precision bias source for instrumentation amplifiers and sigma-delta modulators operating at –40°C to +125°C. Use Value: Maintains <±1.2mV output deviation across full temperature range, ensuring <0.03% sensor measurement error. |
| Portable Test Equipment | Medical Patient Monitoring |
|
Use Scenario: Battery-powered handheld digital multimeter (DMM) with auto-ranging 5½-digit resolution. IC Role / Device Role / Timing Role: Low-noise reference for dual-slope integrator and successive-approximation ADC stages. Use Value: 6.6µVP-P noise contributes <0.002% RMS error - meets ANSI/IEEE Std 1057 Class A specification. |
Use Scenario: ECG front-end reference in portable patient monitor with isolated power architecture. IC Role / Device Role / Timing Role: Isolated analog reference for anti-aliasing filter and ADC, powered from local DC/DC converter. Use Value: 320µA quiescent current extends single-charge battery runtime to >8 hours at 120SPS sampling rate. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5040IDR | 4.096V, 3ppm/°C max, 0.05% initial accuracy, SO-8 package, 950µA IQ | Lower tempco but larger footprint and higher supply current - better for lab-grade instruments, less suitable for space-constrained automotive modules | Select REF5040IDR when ultra-low drift (<±150ppm over –40°C to +125°C) outweighs size and power constraints. |
| ADR444ARZ | 4.096V, 3ppm/°C max, 0.04% initial accuracy, SO-8, 750µA IQ, higher PSRR | Superior PSRR (−95dB @ 1kHz) and lower noise (3.5µVP-P) but requires output capacitor and lacks automotive temp rating | Choose ADR444ARZ for high-EMI environments like motor drives where supply ripple rejection is critical. |
Compared with REF5040IDR and ADR444ARZ, the MAX6043AAUT41 trades absolute drift performance for compact SOT23 packaging, ultra-low IQ, and guaranteed automotive qualification - making it optimal for cost-sensitive, space-limited, and battery-aware embedded systems requiring 12-bit+ accuracy.
Availability
MAX6043AAUT41 is available at Aetrix Electronics and suitable for industrial data acquisition, automotive sensor signal conditioning, and portable test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6043AAUT41 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
Maxim Integrated (now part of Analog Devices) designs high-performance analog and mixed-signal ICs for demanding industrial, automotive, and communications applications.
The MAX6043 product line delivers precision voltage references optimized for high-resolution data converters in harsh environments, emphasizing low drift, low noise, and wide-supply operation without external compensation.
FAQ
What is the exact output voltage tolerance of MAX6043AAUT41 at +25°C?
The MAX6043AAUT41 has an initial output voltage tolerance of ±0.06% at +25°C, corresponding to 4.096V ±2.46mV (4.0935V to 4.0985V). This is specified in the Electrical Characteristics table for VOUT = +4.096V under "Output Voltage" with condition IOUT = 0 and TA = +25°C. The "A" grade denotes this tight accuracy bin.
Does MAX6043AAUT41 require an output bypass capacitor for stability?
No, the MAX6043AAUT41 does not require an external output bypass capacitor for stability. It is explicitly characterized as stable with capacitive loads from 0 to 100µF. This eliminates a common BOM item and saves PCB area - confirmed in the General Description and Applications Information sections of the datasheet.
What is the maximum operating junction temperature for MAX6043AAUT41?
The MAX6043AAUT41 has a maximum junction temperature of +150°C, as stated in the Absolute Maximum Ratings table. Its specified operating temperature range is –40°C to +125°C ambient, and thermal design must ensure junction temperature stays within this limit under worst-case power dissipation and ambient conditions.
How does the dual-output (OUTF/OUTS) configuration improve accuracy in MAX6043AAUT41?
The OUTF (force) and OUTS (sense) pins enable true 4-wire Kelvin sensing in the MAX6043AAUT41. By routing feedback from the load point back to OUTS, the device compensates for IR drop in PCB traces and contact resistance - maintaining output regulation accuracy even with 10mA load current and 100mΩ path resistance.
Is MAX6043AAUT41 qualified for automotive applications?
Yes, the MAX6043AAUT41 is rated for the automotive temperature range of –40°C to +125°C and is manufactured using processes aligned with AEC-Q100 reliability stress testing. Its top mark "#ACMN" indicates RoHS compliance with lead exemption, and the datasheet explicitly lists "automotive" in the operating temperature description.
MAX6043AAUT41 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- SOT-23-6
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 4.096V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±0.06%
- Temperature Coefficient:
- 15ppm/°C
- Noise - 0.1Hz to 10Hz:
- 6.6µVp-p
- Noise - 10Hz to 10kHz:
- 12µVrms
- Voltage - Input:
- 6.1V ~ 40V
- Current - Supply:
- 650µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX6043AAUT41 FAQ
1.How can I place an order for MAX6043AAUT41 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6043AAUT41 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 MAX6043AAUT41 reliable?
The price and inventory of MAX6043AAUT41 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6043AAUT41 is usually 5 days.
3.What payment methods are accepted for MAX6043AAUT41?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6043AAUT41 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6043AAUT41?
MAX6043AAUT41 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6043AAUT41 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 MAX6043AAUT41?
For technical support, including MAX6043AAUT41 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6043AAUT41 requirements.
6.How does Aetrix verify that MAX6043AAUT41 is sourced from the original manufacturer or authorized distributors?
All MAX6043AAUT41 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 MAX6043AAUT41 meets industry standards.
7.What is the process for return or replacement of MAX6043AAUT41?
All MAX6043AAUT41 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6043AAUT41, 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 MAX6043AAUT41 part is unused and in its original packaging.
Return procedure for MAX6043AAUT41:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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