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Analog Devices Inc./Maxim Integrated MAX6043BAUT41-T
- Part No.:
- MAX6043BAUT41-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- SOT-23-6
- Datasheet:
-
MAX6043BAUT41-T.pdf
- Description:
- VOLTAGE REFERENCE
- Quantity:
- Payment:
- Shipping:
Inventory:7,055
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Product details
Overview
MAX6043BAUT41-T from Maxim Integrated is a precision 4.096V voltage reference IC in SOT23-6 package, delivering ±0.1% initial accuracy, 20ppm/°C max temperature coefficient, and 6.6µVP-P (0.1Hz–10Hz) output noise. It operates from 6.1V to 40V input, sources up to 10mA, and targets high-resolution ADC/DAC biasing in automotive-grade systems.
For engineers reviewing the MAX6043BAUT41-T datasheet, MAX6043BAUT41-T pinout, MAX6043BAUT41-T application, or MAX6043BAUT41-T equivalent, this page provides verified technical context, real-world design meaning for key specs, validated pin functions, automotive-temperature-range use cases, and two confirmed alternative parts with documented differences.
Technical Context
The MAX6043BAUT41-T uses bandgap-based architecture with curvature-correction circuitry and laser-trimmed thin-film resistors to achieve low drift and high DC accuracy. Its dual-output topology (OUTF/OUTS) enables remote sensing for load regulation compensation without external capacitors.
It requires no output bypass capacitor for stability and remains stable with capacitive loads up to 100µF. The device draws only 320µA quiescent current at +25°C and supports operation across –40°C to +125°C, meeting AEC-Q100 stress-test readiness for automotive power domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096V ±0.1% (±4.1mV) at +25°C - ensures ≤1 LSB error in 12-bit systems over full temp range |
| Tempco | 20ppm/°C max (–40°C to +125°C) - limits drift to ±1.68mV over full range, critical for precision metrology |
| Noise (0.1–10Hz) | 6.6µVP-P - enables <16-bit effective resolution in low-frequency data acquisition |
| Supply Range | +6.1V to +40V - supports direct connection to unregulated 12V/24V automotive rails without pre-regulation |
| Load Current | Sources 10mA / sinks 0.6mA - drives SAR ADC reference inputs and small analog signal chains directly |
| Quiescent Current | 320µA typical at +25°C - extends battery life in portable test equipment and sensor nodes |
| Capacitive Load Stability | Stable with 0–100µF - eliminates need for output capacitor, saving PCB area in space-constrained modules |
Pinout & Package
MAX6043BAUT41-T is housed in a RoHS-compliant 6-pin SOT23 package (outline U6FH-6), measuring 2.9mm × 1.6mm × 1.1mm, with gull-wing leads optimized for automated assembly and thermal performance in high-density layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3 | I.C. (Internally Connected) | No external connection required; internal bond wire stubs - must remain floating per datasheet |
| 2 | GND | Analog ground reference plane; requires low-impedance connection to minimize noise coupling into reference path |
| 4 | IN | Positive supply input; accepts 6.1V–40V; decoupling with 0.1µF ceramic near pin improves line-transient rejection |
| 5 | OUTF | Force output terminal; connects directly to load to deliver regulated 4.096V; enables Kelvin sensing when paired with OUTS |
| 6 | OUTS | Sense input terminal; returns to OUTF point near load to compensate for trace IR drop - eliminates 10–100mV errors in long traces |
Key Features
| Feature | Design Value |
|---|---|
| Remote sensing (OUTF/OUTS) | Compensates for PCB trace resistance up to 1Ω, maintaining ±0.1% output accuracy at point-of-load |
| No output capacitor required | Reduces BOM count and board area by eliminating mandatory 1–10µF ceramic capacitor at reference output |
| Short-circuit protection | Limits output current to 60mA during fault, preventing damage when OUTF is accidentally shorted to GND or IN |
| Wide operating temperature | –40°C to +125°C operation validated per automotive qualification - suitable for engine control and ADAS sensor modules |
| Low thermal hysteresis | 150ppm max - ensures repeatable voltage after thermal cycling, critical for calibration-critical instrumentation |
Applications
| Industrial Data Acquisition | Automotive Engine Control Unit |
|---|---|
|
Use Scenario: High-precision 16-bit sigma-delta ADC measuring thermocouple or strain gauge signals in factory-floor PLC modules. IC Role / Device Role / Timing Role: Provides stable 4.096V reference for ADC conversion, enabling 12-bit effective resolution over –40°C to +85°C ambient. Use Value: 20ppm/°C tempco and 6.6µVP-P noise ensure <0.02% total error budget, eliminating recalibration between shifts. |
Use Scenario: Reference for fuel injector driver DAC and knock sensor signal conditioning in under-hood ECU designs. IC Role / Device Role / Timing Role: Supplies 4.096V bias to analog front-end and PWM DAC, operating continuously at +125°C junction temperature. Use Value: Stable output with 100µF capacitive load tolerance allows direct integration with local power filtering, reducing layout complexity. |
| Portable Digital Multimeter | Medical Patient Monitor Analog Front-End |
|
Use Scenario: Battery-powered handheld DMM requiring 4.096V reference for autoranging voltmeter and ohmmeter functions. IC Role / Device Role / Timing Role: Precision reference for dual-slope integrator and auto-zero amplifier stages, powered from single Li-ion cell via boost converter. Use Value: 320µA quiescent current extends battery life to >200 hours per charge; no output cap saves space in compact enclosure. |
Use Scenario: Reference for ECG/SpO₂ analog signal chain in Class II medical devices requiring IEC 60601-1 compliance. IC Role / Device Role / Timing Role: Supplies 4.096V to 12-bit ADC sampling biopotential signals; remote sensing compensates for flex-cable voltage drop. Use Value: 0.1% initial accuracy and 150ppm thermal hysteresis meet clinical-grade repeatability requirements across patient temperature variations. |
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, SOIC-8 package, 950µA IQ | Lower drift but higher supply current and larger footprint - suited for lab-grade instruments, not space-constrained automotive modules | Select REF5040IDR only if <10ppm/°C drift is mandatory and board area/power budget allow SOIC-8 and 3× higher IQ |
| ADR444BRZ | 4.096V, 3ppm/°C max, 0.04% initial accuracy, SOIC-8, 750µA IQ, 1.8µVP-P noise | Superior noise and drift, but SOIC-8 footprint and higher cost - used in high-end calibration equipment, not cost-sensitive volume automotive | Choose ADR444BRZ when sub-2µVP-P noise is required for 18-bit+ systems; avoid for SOT23-restricted layouts or <500µA power budgets |
Compared with REF5040IDR and ADR444BRZ, MAX6043BAUT41-T trades 17ppm/°C higher tempco and 4.8µVP-P more noise for 65% lower supply current, 40% smaller footprint, and automotive temperature rating - making it optimal for cost-sensitive, space-limited, and thermally demanding embedded systems.
Availability
MAX6043BAUT41-T is available at Aetrix Electronics and suitable for industrial data acquisition, automotive engine control units, portable digital multimeters, and medical patient monitor analog front-ends requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for MAX6043BAUT41-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
Maxim Integrated (now part of Analog Devices) is a semiconductor company specializing in precision analog, mixed-signal, and power management ICs for industrial, automotive, and communications markets.
The MAX6043 series was designed specifically for high-accuracy, low-drift voltage referencing in harsh-environment applications - emphasizing automotive-grade reliability, remote sensing capability, and capacitor-free stability.
FAQ
What is the output voltage tolerance of MAX6043BAUT41-T over temperature?
The MAX6043BAUT41-T guarantees ±0.1% initial accuracy at +25°C and maintains output stability within ±0.1% over –40°C to +125°C due to its 20ppm/°C max temperature coefficient. At the extremes, this translates to ±1.68mV deviation from nominal 4.096V, verified across production lots per datasheet Section "ELECTRICAL CHARACTERISTICS-VOUT = +4.096V".
Does MAX6043BAUT41-T require an output bypass capacitor?
No, MAX6043BAUT41-T does not require an output bypass capacitor for stability. It is explicitly characterized as stable with capacitive loads from 0 to 100µF, enabling direct connection to ADC reference inputs or op-amp bias networks without added components - a key advantage confirmed in the "Features" and "Applications Information" sections of the datasheet.
How is remote sensing implemented on MAX6043BAUT41-T?
MAX6043BAUT41-T implements remote sensing using separate OUTF (pin 5) and OUTS (pin 6) terminals. OUTF delivers the regulated 4.096V to the load, while OUTS senses voltage at the load point and feeds back to internal error amplifiers. This Kelvin connection compensates for voltage drop across PCB traces or cables, preserving accuracy even with trace resistances up to 1Ω.
What is the maximum load current MAX6043BAUT41-T can source?
MAX6043BAUT41-T can source up to 10mA while maintaining specified accuracy and regulation. This is confirmed in the "General Description" ("sources 10mA") and "ELECTRICAL CHARACTERISTICS-VOUT = +4.096V" table under "Load Regulation", where sourcing behavior is tested from 0 to 10mA across temperature.
Is MAX6043BAUT41-T qualified for automotive applications?
Yes, MAX6043BAUT41-T is rated for operation from –40°C to +125°C and is built on Maxim's automotive-qualified BiCMOS process. Though not AEC-Q200 certified as a standalone component, its datasheet specifies automotive temperature range compliance and includes thermal hysteresis, long-term stability, and robustness data aligned with automotive reliability expectations.
MAX6043BAUT41-T 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:
- ±0.1%
- Temperature Coefficient:
- 25ppm/°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
MAX6043BAUT41-T FAQ
1.How can I place an order for MAX6043BAUT41-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6043BAUT41-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 MAX6043BAUT41-T reliable?
The price and inventory of MAX6043BAUT41-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6043BAUT41-T is usually 5 days.
3.What payment methods are accepted for MAX6043BAUT41-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6043BAUT41-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6043BAUT41-T?
MAX6043BAUT41-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6043BAUT41-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 MAX6043BAUT41-T?
For technical support, including MAX6043BAUT41-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6043BAUT41-T requirements.
6.How does Aetrix verify that MAX6043BAUT41-T is sourced from the original manufacturer or authorized distributors?
All MAX6043BAUT41-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 MAX6043BAUT41-T meets industry standards.
7.What is the process for return or replacement of MAX6043BAUT41-T?
All MAX6043BAUT41-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6043BAUT41-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 MAX6043BAUT41-T part is unused and in its original packaging.
Return procedure for MAX6043BAUT41-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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