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Analog Devices Inc./Maxim Integrated MAX6043CAUT10
- Part No.:
- MAX6043CAUT10
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- SOT-23-6
- Datasheet:
-
MAX6043CAUT10.pdf
- Description:
- VOLTAGE REFERENCE
- Quantity:
- Payment:
- Shipping:
Inventory:738
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Product details
Overview
MAX6043CAUT10 from Maxim Integrated is a precision +10.0V voltage reference IC in SOT23-6 package, designed for high-accuracy analog systems requiring stable excitation or calibration references. It delivers 0.5% initial accuracy, 65ppm/°C max temperature coefficient, and operates from +12V to +40V supply across -40°C to +125°C. Used in 16-bit+ data converters where reference drift must stay below 1 LSB over automotive temperature range.
For engineers reviewing the MAX6043CAUT10 datasheet, MAX6043CAUT10 pinout, MAX6043CAUT10 application, or MAX6043CAUT10 equivalent, key selection criteria include output voltage tolerance at temperature extremes, load regulation under sourcing/sinking conditions, stability with capacitive loads up to 100µF, and quiescent current behavior across input voltage and temperature.
Technical Context
The MAX6043CAUT10 uses bandgap-based architecture with proprietary curvature-correction circuitry to achieve low thermal drift. Its dual-output topology (OUTF/OUTS) enables Kelvin sensing for improved load regulation-critical when driving ADC reference inputs with long PCB traces or high-current DAC buffers.
It features short-circuit protection limiting output current to ±60mA, operates without mandatory output bypass capacitor, and maintains stability with capacitive loads from 0 to 100µF. Supply rejection exceeds -60dB above 10Hz, supporting noisy industrial power rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | +10.000V nominal; min/max 9.950V–10.050V at +25°C - ensures ≤0.5% absolute error before trimming or calibration |
| Tempco | 65ppm/°C max over -40°C to +125°C - limits drift to ±0.78mV over full range, acceptable for 14-bit systems |
| Line Regulation | 10ppm/V max over 12V–40V input - contributes ≤0.3mV error across 28V input swing |
| Load Regulation | 900ppm/mA max sinking, 170ppm/mA max sourcing - defines worst-case error when driving 10mA DAC buffer |
| Quiescent Current | 390–650µA over temperature - enables >1-year battery life in 10µA sleep-mode systems with periodic wake-up |
| Output Noise | 19µVP-P (0.1–10Hz), 30µVRMS (10Hz–1kHz) - supports 16-bit resolution without additional filtering |
| Stability | Stable with 0–100µF capacitive load - eliminates need for external compensation network in sensor front-ends |
Pinout & Package
Package: 6-pin SOT23 (U6FH-6), RoHS-compliant, footprint per land pattern 90-0175.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3 | I.C. | Internally connected; no external connection permitted - floating pins reduce parasitic coupling in high-PSRR layout |
| 2 | GND | Analog ground reference - must be star-connected to system AGND to avoid ground bounce in mixed-signal designs |
| 4 | IN | Positive supply input - accepts 12V–40V; requires local 0.1µF ceramic decoupling for optimal line-transient immunity |
| 5 | OUTF | Force output - drives load directly; connects to OUTS via shortest possible trace to enable remote sensing |
| 6 | OUTS | Sense input - returns feedback to internal amplifier; placement at load point cancels IR drop in PCB traces |
Key Features
| Feature | Design Value |
|---|---|
| Kelvin force-sense outputs (OUTF/OUTS) | Enables <10ppm error correction for 10cm PCB trace resistance - critical for metrology-grade instrumentation |
| No output capacitor required | Saves board area and BOM cost in space-constrained modules like portable DMMs and handheld calibrators |
| Wide 12V–40V input range | Accepts unregulated 24V industrial rails or automotive battery transients without external LDO pre-regulation |
| Short-circuit protected (±60mA) | Survives accidental probe shorts during field service without latch-up or parametric shift |
| Stable with 100µF capacitive load | Supports direct drive of large filter caps in anti-aliasing stages without oscillation risk |
Applications
| High-Resolution Data Acquisition | Digital Voltmeters |
|---|---|
Use Scenario: 18-bit SAR ADC in automated test equipment measuring thermocouple signals with cold-junction compensation. IC Role / Device Role / Timing Role: Precision voltage reference providing excitation and scaling for ratiometric measurement chain. Use Value: 65ppm/°C tempco ensures <1 LSB error over -40°C to +85°C operating range, eliminating recalibration cycles. | Use Scenario: Portable handheld DVM with autoranging and 5½-digit display requiring stable 10V reference for internal DAC calibration. IC Role / Device Role / Timing Role: Primary reference source for internal 20-bit DAC used in auto-zero and gain calibration routines. Use Value: 0.5% initial accuracy allows factory trim to ±0.01% final tolerance without laser adjustment, reducing production cost. |
| Industrial Process Controllers | Battery-Operated Sensor Transmitters |
Use Scenario: Loop-powered 4–20mA transmitter with HART modulation, using 10V reference for current-loop DAC and ADC monitoring. IC Role / Device Role / Timing Role: Dual-role reference supplying both DAC reference and ADC reference in isolated signal path. Use Value: Stable operation down to 12V input enables reliable function during brownout conditions common in 24V plant wiring. | Use Scenario: Wireless pressure sensor node powered by two AA cells, transmitting calibrated readings every 10 seconds. IC Role / Device Role / Timing Role: Low-quiescent-current reference enabling 16-bit sigma-delta ADC conversion during active measurement phase. Use Value: 390µA typical supply current extends battery life beyond 2 years while maintaining 10V reference stability for sensor excitation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5010IDR | 0.05% initial accuracy, 3ppm/°C tempco, SO-8 package, 1.2mA quiescent current | Higher precision but larger footprint and higher power - suited for lab-grade instruments, not space/power-constrained nodes | Select REF5010IDR when 18-bit+ performance is mandatory and board area/power budget allow SO-8 footprint |
| ADR4510BRZ | 0.02% initial accuracy, 3ppm/°C tempco, SO-8, 950µA quiescent current, 10V output | Superior stability and lower noise, but incompatible SOT23 footprint and higher supply current | Choose ADR4510BRZ for metrology applications where long-term drift (<10ppm/1000hr) outweighs size/power constraints |
Compared with REF5010IDR and ADR4510BRZ, the MAX6043CAUT10 trades ultimate precision for compact SOT23-6 packaging, ultra-low quiescent current, and Kelvin sensing-making it optimal for embedded industrial sensors and portable test gear where size, power, and trace resistance matter more than sub-10ppm drift.
Availability
MAX6043CAUT10 is available at Aetrix Electronics and suitable for industrial process controllers, portable digital multimeters, and battery-operated sensor transmitters requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for MAX6043CAUT10 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 product line delivers high-voltage, high-accuracy references optimized for data converter interfaces, sensor excitation, and calibration systems demanding robustness across harsh temperature and supply conditions.
FAQ
What is the maximum input voltage rating for the MAX6043CAUT10?
The MAX6043CAUT10 has an absolute maximum input voltage of +42V relative to GND. Its specified operating supply range is +12V to +40V, ensuring safe and guaranteed performance within this window. Exceeding +42V may cause permanent damage. The device's internal protection circuitry does not extend beyond this limit, so external clamping is recommended if transient overvoltage events exceed +42V in the application.
Does the MAX6043CAUT10 require an output bypass capacitor for stability?
No, the MAX6043CAUT10 does not require an external output bypass capacitor for stability. It is internally compensated and remains stable with capacitive loads ranging from 0 to 100µF. This eliminates a common BOM item and simplifies layout-especially valuable in space-constrained applications like handheld instruments. However, adding a small ceramic capacitor (e.g., 100nF) near the OUTS pin can improve high-frequency PSRR in noisy environments.
What is the purpose of the OUTF and OUTS pins on the MAX6043CAUT10?
The OUTF (force) and OUTS (sense) pins implement a Kelvin connection to eliminate voltage drop errors caused by PCB trace resistance. OUTF delivers current to the load, while OUTS provides feedback to the internal amplifier from the actual load point. Connecting OUTF to OUTS with minimal trace length enables standard operation; separating them (with OUTS placed at the load) improves accuracy by up to 10× in systems with >1Ω trace resistance-essential for precision ADC/DAC reference routing.
Can the MAX6043CAUT10 sink current, and how much?
Yes, the MAX6043CAUT10 can sink up to 0.6mA while maintaining output regulation. Its sinking capability is explicitly characterized in the datasheet under "Load Regulation" for negative currents (–0.6mA ≤ IOUT ≤ 0mA). This feature supports applications such as biasing op-amp inputs, driving current-sinking DACs, or interfacing with logic that pulls down reference nodes-without requiring external pull-down resistors that would degrade accuracy.
How does the MAX6043CAUT10's 65ppm/°C temperature coefficient impact 16-bit ADC performance?
Over the –40°C to +125°C range (165°C span), the MAX6043CAUT10's 65ppm/°C tempco results in ≤±10.7mV total drift (10V × 65ppm × 165). For a 16-bit ADC with 10V full-scale, 1 LSB = 152.6µV - meaning this drift equals ~70 LSBs. Thus, the MAX6043CAUT10 meets 14-bit accuracy over temperature but requires system-level calibration or tighter tempco (e.g., MAX6043AAUT10) for uncalibrated 16-bit performance.
MAX6043CAUT10 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):
- 10V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±0.5%
- Temperature Coefficient:
- 65ppm/°C
- Noise - 0.1Hz to 10Hz:
- 19µVp-p
- Noise - 10Hz to 10kHz:
- 30µVrms
- Voltage - Input:
- 12V ~ 40V
- Current - Supply:
- 650µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX6043CAUT10 FAQ
1.How can I place an order for MAX6043CAUT10 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6043CAUT10 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 MAX6043CAUT10 reliable?
The price and inventory of MAX6043CAUT10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6043CAUT10 is usually 5 days.
3.What payment methods are accepted for MAX6043CAUT10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6043CAUT10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6043CAUT10?
MAX6043CAUT10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6043CAUT10 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 MAX6043CAUT10?
For technical support, including MAX6043CAUT10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6043CAUT10 requirements.
6.How does Aetrix verify that MAX6043CAUT10 is sourced from the original manufacturer or authorized distributors?
All MAX6043CAUT10 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 MAX6043CAUT10 meets industry standards.
7.What is the process for return or replacement of MAX6043CAUT10?
All MAX6043CAUT10 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6043CAUT10, 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 MAX6043CAUT10 part is unused and in its original packaging.
Return procedure for MAX6043CAUT10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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