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Analog Devices Inc./Maxim Integrated MAX6241AESA+T
- Part No.:
- MAX6241AESA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6241AESA+T.pdf
- Description:
- IC VREF SERIES 0.02% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,512
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Product details
Overview
MAX6241AESA+T from Maxim Integrated is a precision 4.096V buried-zener voltage reference IC with 3.0ppm/°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 MAX6241AESA+T datasheet, MAX6241AESA+T pinout, MAX6241AESA+T application, or MAX6241AESA+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 MAX6241AESA+T employs buried-zener core technology to achieve ultra-low noise and high thermal stability without heater circuitry. Its internal temperature compensation delivers near-zero curvature across –40°C to +85°C, validated by box-method TCVOUT measurement per Note 1.
It supports bidirectional load regulation (±15mA), operates from 8V to 36V input, and maintains stable output under all capacitive loads (0–100µF). The NR pin enables wideband noise reduction via optional 1µF capacitor, while TRIM allows ±24mV adjustment without degrading temperature performance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096V ±1mV at +25°C - ensures 16-bit DAC/ADC full-scale alignment without calibration. |
| Temp Coefficient | Max 3.0ppm/°C (–40°C to +85°C) - limits drift to ≤1.24mV over full industrial range. |
| Initial Accuracy | ±0.02% - guarantees absolute error ≤0.82mV at power-up, reducing system calibration burden. |
| Output Noise | 2.4µVP-P (0.1Hz–10Hz) - preserves SNR in precision metrology and weigh-scale front-ends. |
| Load Current | ±15mA sourcing/sinking - drives 66Ω minimum load or interfaces directly with op-amp buffers. |
| Long-Term Stability | 20ppm/1000h - predicts <0.2% output shift over 5 years in uncalibrated instrumentation. |
| Supply Current | 2.9mA typical - enables low-power portable test equipment with minimal thermal self-heating. |
Pinout & Package
MAX6241AESA+T is housed in an 8-pin SO (Small Outline) package, RoHS-compliant, with 1.27mm pitch and standard JEDEC MS-012AC footprint (S8+5 outline).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 8 | I.C. | Internally connected; electrically isolated from functional circuitry - must remain unconnected on PCB. |
| 2 | IN | Positive supply input (8V–36V); requires local 1µF bypass to GND for ripple rejection. |
| 3 | NR | Noise reduction node - connect 1µF capacitor to GND to reduce wideband noise; open if unused. |
| 4 | GND | Analog ground reference; star-point connection required for optimal noise performance. |
| 5 | TRIM | External voltage adjust input - accepts 0–VOUT to trim output ±24mV using 10kΩ potentiometer. |
| 6 | OUT | Precision 4.096V reference output - capable of sourcing/sinking ±15mA with <6ppm/mA load regulation. |
Key Features
| Feature | Design Value |
|---|---|
| Buried-zener core | Enables 2.4µVP-P low-frequency noise and eliminates heater power, reducing thermal gradients. |
| Optional NR capacitor | 1µF on NR pin cuts wideband noise without affecting DC stability or settling time (tON = 8µs). |
| Trim-adjustable output | ±24mV range via TRIM pin preserves ±0.02% initial accuracy and 3.0ppm/°C TCVOUT after adjustment. |
| Capacitive-load immunity | Stable with 0–100µF output capacitance - eliminates need for isolation resistors in noisy environments. |
| Industrial temp range | Specified from –40°C to +85°C with guaranteed 3.0ppm/°C TCVOUT - suitable for uncontrolled cabinet deployments. |
Applications
| High-Resolution Data Acquisition | Digital Voltmeter (DVM) |
|---|---|
Use Scenario: 16-bit SAR ADC sampling thermocouple or strain-gauge signals in factory-floor PLC modules. IC Role / Device Role / Timing Role: Primary voltage reference for ADC VREF input, establishing absolute measurement scale. Use Value: 3.0ppm/°C TCVOUT and 2.4µVP-P noise ensure <0.005% total unadjusted error over temperature and time. | Use Scenario: Portable handheld DVM measuring 0–5V DC with 100µV resolution and auto-ranging. IC Role / Device Role / Timing Role: Stable 4.096V reference enabling exact binary-aligned full-scale digitization (212 = 4096 counts). Use Value: ±0.02% initial accuracy eliminates factory zero/gain trim; 20ppm/1000h stability extends recalibration intervals to ≥2 years. |
| ATE Equipment Reference | Precision Current Source |
Use Scenario: Automated test system generating calibrated analog stimulus for DUT biasing and parametric testing. IC Role / Device Role / Timing Role: Master reference for DAC-controlled current/voltage sources and comparator thresholds. Use Value: ±15mA drive capability allows direct interface to op-amp I-to-V stages without buffer amplifiers. | Use Scenario: 4–20mA loop transmitter with HART modulation requiring stable excitation for RTD/bridge sensors. IC Role / Device Role / Timing Role: Precision voltage setpoint for Howland current source or op-amp-based constant-current regulator. Use Value: Low 18mW power dissipation minimizes thermal drift in sealed sensor housings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR444BRZ | 4.096V, 3ppm/°C max, but higher 3.5µVP-P noise and 4.5mA supply current. | Lacks NR pin and external trim; fixed-output only. | Choose when board space is constrained and noise sensitivity is moderate. |
| REF5040AIDR | 4.096V, 3ppm/°C max, 1.8µVP-P noise, but requires ≥4.5V input and sinks only 10mA. | No TRIM/NR pins; not compatible with 8V–36V supply rails. | Prefer when ultra-low noise dominates and supply voltage is limited to 4.5–18V. |
Compared with ADR444BRZ and REF5040AIDR, the MAX6241AESA+T uniquely combines 4.096V output, 3.0ppm/°C TCVOUT, external trim, NR pin, and ±15mA drive in an industry-standard 8-SO package-making it optimal for high-channel-count DAQ systems requiring field calibration and wide-input flexibility.
Availability
MAX6241AESA+T is available at Aetrix Electronics and suitable for high-resolution analog-to-digital converters, digital voltmeters, and automated test equipment requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for MAX6241AESA+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, emphasizing ultra-low noise, sub-5ppm/°C stability, and robustness in industrial and test instrumentation.
FAQ
What is the maximum operating temperature range for the MAX6241AESA+T?
The MAX6241AESA+T is rated for operation from –40°C to +85°C (industrial temperature range), with all electrical specifications-including 3.0ppm/°C max temperature coefficient and ±0.02% initial accuracy-guaranteed across this full range. Its 8-pin SO package (S8+5 outline) is qualified per JEDEC standards for this thermal envelope.
Can the MAX6241AESA+T drive a 100µF output capacitor without instability?
Yes, the MAX6241AESA+T is explicitly specified as stable with output capacitance from 0µF to 100µF across all load currents (±15mA), per the "Bypassing" section of the datasheet. No series isolation resistor is required, simplifying layout in noise-sensitive applications like precision data loggers.
How much can the output voltage of the MAX6241AESA+T be adjusted using the TRIM pin?
The TRIM pin on the MAX6241AESA+T supports ±24mV output adjustment (±0.59%) when configured with a 10kΩ potentiometer between OUT and GND, as shown in Figure 1 of the datasheet. This adjustment preserves both the ±0.02% initial accuracy specification and the 3.0ppm/°C temperature coefficient.
What is the purpose of the NR pin on the MAX6241AESA+T?
The NR (Noise Reduction) pin on the MAX6241AESA+T accepts an optional 1µF capacitor to ground to reduce wideband output noise. Per Typical Operating Characteristics (TOC11), this lowers noise density above ~10Hz without impacting DC accuracy, settling time (8µs), or long-term stability-enabling cleaner reference performance in switched-mode power supply environments.
Does the MAX6241AESA+T require an input bypass capacitor?
Yes, the MAX6241AESA+T requires a local 1µF ceramic bypass capacitor between IN and GND, as stated in the "Applications Information" section. This minimizes input ripple coupling into the reference output and ensures specified line regulation (≤7ppm/V from 10V–36V) and ripple rejection (>60dB at 1kHz).
MAX6241AESA+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:
- ±0.02%
- Temperature Coefficient:
- 3ppm/°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
MAX6241AESA+T FAQ
1.How can I place an order for MAX6241AESA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6241AESA+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 MAX6241AESA+T reliable?
The price and inventory of MAX6241AESA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6241AESA+T is usually 5 days.
3.What payment methods are accepted for MAX6241AESA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6241AESA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6241AESA+T?
MAX6241AESA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6241AESA+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 MAX6241AESA+T?
For technical support, including MAX6241AESA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6241AESA+T requirements.
6.How does Aetrix verify that MAX6241AESA+T is sourced from the original manufacturer or authorized distributors?
All MAX6241AESA+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 MAX6241AESA+T meets industry standards.
7.What is the process for return or replacement of MAX6241AESA+T?
All MAX6241AESA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6241AESA+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 MAX6241AESA+T part is unused and in its original packaging.
Return procedure for MAX6241AESA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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