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Analog Devices Inc./Maxim Integrated MAX6241BESA+T
- Part No.:
- MAX6241BESA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6241BESA+T.pdf
- Description:
- IC VREF SERIES 0.1% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,569
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Product details
Overview
MAX6241BESA+T from Maxim Integrated is a precision 4.096V buried-zener voltage reference IC with 7ppm/°C max temperature coefficient, ±0.02% initial accuracy, and 2.4µVP-P (0.1Hz–10Hz) output noise-designed for high-resolution ADC/DAC biasing in industrial data acquisition systems.
For engineers reviewing the MAX6241BESA+T datasheet, MAX6241BESA+T pinout, MAX6241BESA+T application, or MAX6241BESA+T equivalent, key selection criteria include guaranteed ±15mA sink/source capability, 8-pin SO package compatibility, low 20ppm/1000h long-term stability, and optional external trim/noise reduction support.
Technical Context
The MAX6241BESA+T uses buried-zener core technology to achieve ultra-low noise and high DC stability across -40°C to +85°C. Its internal temperature compensation delivers near-flat VOUT vs. T response without heater power, enabling lab-grade accuracy in embedded systems.
It supports bidirectional load regulation (±15mA), operates from 8V to 36V input, and maintains stable performance with capacitive loads up to 100µF-critical for driving SAR ADC reference inputs and precision current sources without external buffering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096V ±0.004V at +25°C - ensures direct interface with 12-bit and 16-bit ADCs using 4.096V full-scale range. |
| Temp Coefficient | 7ppm/°C max (E grade) - limits drift to ≤±0.28mV over -40°C to +85°C ambient range. |
| Initial Accuracy | ±0.02% - guarantees absolute output tolerance of ±0.82mV before trimming or calibration. |
| Output Noise | 2.4µVP-P (0.1Hz–10Hz) - preserves SNR in high-resolution analog signal chains. |
| Load Current | ±15mA sourcing/sinking - drives typical 10kΩ reference loads and op-amp inputs without gain error. |
| Long-Term Stability | 20ppm/1000h - supports calibration intervals ≥1 year in metrology-grade instruments. |
| Supply Current | 2.9mA max - enables low-power operation in battery-backed or energy-constrained systems. |
Pinout & Package
MAX6241BESA+T is housed in an 8-pin SO (Small Outline) package with industry-standard footprint (S8+5, outline 21-0041), RoHS-compliant and lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 8 | I.C. | Internally connected; no external connection required-leave unconnected on PCB. |
| 2 | IN | Positive supply input (8V–36V); requires local bypass capacitor for ripple rejection. |
| 3 | NR | Noise reduction node; accepts 1µF capacitor to reduce wideband output noise by >20dB. |
| 4 | GND | Analog ground reference; must be star-connected to minimize ground bounce in mixed-signal layouts. |
| 5 | TRIM | External voltage adjust input; enables ±24mV trim range (±0.59%) via 10kΩ potentiometer. |
| 6 | OUT | Precision 4.096V reference output; capable of sourcing/sinking ±15mA with <10ppm/mA load regulation. |
Key Features
| Feature | Design Value |
|---|---|
| Buried-zener core | Delivers lowest 1/f noise among precision references-enables 16-bit+ effective resolution in ADC systems. |
| Optional NR capacitor | 1µF on NR pin reduces 10Hz–1kHz noise by 30% without affecting DC accuracy or settling time. |
| Trim-adjustable output | ±24mV trim range allows system-level calibration to compensate for PCB trace resistance and ADC offset. |
| Stable with all capacitive loads | Operates reliably with 0–100µF output capacitance-eliminates need for isolation resistors in noisy environments. |
| Fast turn-on settling | 8µs to ±0.01% final value-supports burst-mode sampling and low-duty-cycle power management. |
Applications
| High-Resolution Data Converters | Digital Voltmeters |
|---|---|
Use Scenario: Driving the reference input of a 16-bit SAR ADC in an industrial sensor signal chain with ±0.5LSB linearity requirement. IC Role / Device Role / Timing Role: Primary voltage reference providing stable, low-noise excitation for ADC conversion accuracy. Use Value: 2.4µVP-P noise and 7ppm/°C TC ensure <0.005% total error contribution over full operating temperature range. | Use Scenario: Serving as the primary reference in a handheld 5½-digit DVM requiring <10ppm/year calibration stability. IC Role / Device Role / Timing Role: Absolute voltage standard against which input signals are measured and digitized. Use Value: 20ppm/1000h long-term drift and ±0.02% initial accuracy enable annual recalibration intervals without field adjustment. |
| ATE Equipment | Precision Current Sources |
Use Scenario: Biasing DAC outputs in automated test equipment generating programmable DC stimulus voltages. IC Role / Device Role / Timing Role: Stable reference for DAC full-scale setting and current-source compliance control. Use Value: ±15mA sink/source capability and excellent line/load regulation maintain setpoint accuracy under dynamic load switching. | Use Scenario: Setting reference voltage for a Howland current source delivering 100mA to a 100Ω load in process control transmitters. IC Role / Device Role / Timing Role: Precision voltage source defining current magnitude via sense resistor. Use Value: Low output impedance (<1Ω at 10kHz) and fast transient response prevent current droop during step-load changes. |
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, 1.6µVP-P noise, SO-8, but requires 4.5V–18V supply and has only +10mA source capability. | Suitable for lower-voltage systems (<12V IN); less robust for high-current sinking or wide-input-range designs. | Prefer REF5040IDR when supply voltage is constrained and ultra-low TC is prioritized over sink strength. |
| ADR444BRZ | 4.096V, 3ppm/°C max, 1.8µVP-P noise, SO-8, but rated only for ±10mA and lacks NR pin for noise filtering. | Better for ultra-low-noise, low-power portable instrumentation; not recommended for high-current or EMI-prone ATE environments. | Choose ADR444BRZ where board space is limited and noise floor dominates over load flexibility. |
Compared with REF5040IDR and ADR444BRZ, MAX6241BESA+T offers superior ±15mA bidirectional drive, wider 8V–36V input range, and integrated NR pin-making it optimal for industrial ATE, high-current precision sources, and systems demanding both accuracy and ruggedness.
Availability
MAX6241BESA+T is available at Aetrix Electronics and suitable for high-resolution data converters, digital voltmeters, and ATE equipment requiring stable component supply, long-term calibration integrity, and industrial temperature range support.
Supply support for MAX6241BESA+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) designs high-performance analog and mixed-signal ICs for precision, power, and interface applications.
The MAX62xx family targets metrology-grade voltage references-engineered for laboratory, industrial, and test equipment where sub-ppm stability and ultra-low noise are non-negotiable.
FAQ
What is the maximum input voltage rating for MAX6241BESA+T?
The MAX6241BESA+T supports an absolute maximum input voltage of +40V on the IN pin. Its operational input range is specified from 8V to 36V. Exceeding +40V may cause permanent damage. For reliable long-term operation, design margins should keep VIN ≤ 36V under all conditions including transients and ripple.
Does MAX6241BESA+T require an external capacitor on the NR pin?
No, the NR pin of MAX6241BESA+T is optional. Leaving it open provides standard performance. Adding a 1µF capacitor between NR and GND reduces wideband noise by ~30% in the 10Hz–1kHz band without affecting DC accuracy, settling time, or temperature coefficient-ideal for sensitive measurement front-ends.
Can MAX6241BESA+T drive a 10kΩ load at full temperature range?
Yes. MAX6241BESA+T guarantees ±15mA sourcing and sinking capability across -40°C to +85°C. A 10kΩ load draws only 0.41mA at 4.096V, well within spec. Load regulation remains ≤7ppm/mA (E grade), contributing <3µV error-negligible for 16-bit systems.
What is the trim-adjustment range for MAX6241BESA+T?
The TRIM pin of MAX6241BESA+T supports ±24mV (±0.59%) output adjustment using a 10kΩ potentiometer, per Figure 1 in the datasheet. This allows fine-tuning to compensate for system-level errors such as PCB trace resistance, ADC reference divider mismatch, or aging drift-without degrading temperature stability.
Is MAX6241BESA+T compatible with ceramic output capacitors?
Yes. MAX6241BESA+T is stable with any capacitive load from 0µF to 100µF-including X7R and C0G ceramics-across full temperature and load ranges. No series isolation resistor is needed, simplifying layout and improving transient response in high-speed data acquisition systems.
MAX6241BESA+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Reference Type:
- Series, Buried Zener
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 4.096V
- Voltage - Output (Max):
- -
- Current - Output:
- 15 mA
- Tolerance:
- ±0.1%
- Temperature Coefficient:
- 7ppm/°C
- Noise - 0.1Hz to 10Hz:
- 2.4µVp-p
- Noise - 10Hz to 10kHz:
- 2µVrms
- Voltage - Input:
- 8V ~ 36V
- Current - Supply:
- 3.2mA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX6241BESA+T FAQ
1.How can I place an order for MAX6241BESA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6241BESA+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 MAX6241BESA+T reliable?
The price and inventory of MAX6241BESA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6241BESA+T is usually 5 days.
3.What payment methods are accepted for MAX6241BESA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6241BESA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6241BESA+T?
MAX6241BESA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6241BESA+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 MAX6241BESA+T?
For technical support, including MAX6241BESA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6241BESA+T requirements.
6.How does Aetrix verify that MAX6241BESA+T is sourced from the original manufacturer or authorized distributors?
All MAX6241BESA+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 MAX6241BESA+T meets industry standards.
7.What is the process for return or replacement of MAX6241BESA+T?
All MAX6241BESA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6241BESA+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 MAX6241BESA+T part is unused and in its original packaging.
Return procedure for MAX6241BESA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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