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Analog Devices Inc./Maxim Integrated MAX6241BCPA
- Part No.:
- MAX6241BCPA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX6241BCPA.pdf
- Description:
- IC VREF SERIES 0.1% 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,541
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Product details
Overview
MAX6241BCPA from Maxim Integrated is a precision 4.096V buried-zener voltage reference with 5.0ppm/°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 MAX6241BCPA datasheet, MAX6241BCPA pinout, MAX6241BCPA application, or MAX6241BCPA equivalent, this device is selected for 16-bit converter reference stability, low-noise metrology-grade instrumentation, and precision current-source calibration where long-term drift <20ppm/1000h and ±15mA load drive are required.
Technical Context
The MAX6241BCPA uses buried-zener core technology with on-chip temperature compensation to achieve flat thermal response across –40°C to +85°C. Its internal architecture supports simultaneous sourcing and sinking up to ±15mA while maintaining <7ppm/mA load regulation (sourcing) and <7ppm/mA load regulation (sinking) over full temperature range.
It features dedicated NR (noise reduction) and TRIM pins enabling external 1µF capacitor filtering and ±24mV to ±40mV output adjustment without degrading temperature stability. The device operates from 8V to 36V input and delivers stable output into any capacitive load from 0µF to 100µF.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096V ±0.004V at +25°C - tight tolerance enables direct interface with 12-bit and 16-bit SAR/ΣΔ ADCs without gain calibration. |
| Temp Coefficient | 5.0ppm/°C max (–40°C to +85°C) - ensures ≤±0.21mV drift over full industrial range, critical for unattended measurement systems. |
| Noise (0.1–10Hz) | 2.4µVP-P - low enough to avoid limiting ENOB in 16-bit converters operating at <10ksps. |
| Load Regulation | ≤7ppm/mA (sourcing), ≤7ppm/mA (sinking) - supports dynamic load switching in programmable current sources without output perturbation. |
| Supply Current | 2.9mA typical - enables low-power operation in battery-backed precision sensors and portable test equipment. |
| Long-Term Stability | 20ppm/1000h - guarantees minimal calibration drift in field-deployed process controllers and calibration standards. |
| Turn-On Settling | 8µs to ±0.01% - allows fast power cycling in ATE systems without reference settling delay penalties. |
Pinout & Package
MAX6241BCPA is housed in an 8-pin plastic DIP package (0.300" wide), RoHS-compliant, with industry-standard footprint compatible with legacy socketed reference designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 8 | I.C. (Internally Connected) | No external connection; electrically isolated from active circuitry - must remain unconnected per datasheet. |
| 2 | IN | Positive supply input (8V–36V); requires local 10µF bypass to GND for ripple rejection >60dB above 1kHz. |
| 3 | NR | Noise reduction node; connect 1µF capacitor to GND to reduce wideband noise by ~30% (0.1Hz–1kHz). |
| 4 | GND | Analog ground reference; star-point connection required for sub-µV noise integrity in metrology PCB layouts. |
| 5 | TRIM | External trim input; accepts 10kΩ potentiometer between OUT and GND for ±24mV to ±40mV fine adjustment without affecting tempco. |
| 6 | OUT | Stable 4.096V reference output; capable of sourcing/sinking ±15mA with <10µV/mA load-induced error. |
Key Features
| Feature | Design Value |
|---|---|
| Buried-zener core | Delivers lowest 1/f noise (2.4µVP-P) among 4.096V references - essential for DC-coupled precision digitizers. |
| Optional noise reduction | NR pin enables 1µF capacitor addition to cut integrated noise by 30% without altering DC accuracy or stability. |
| Trim-adjustable output | TRIM pin supports ±24mV to ±40mV output correction post-calibration - eliminates need for laser trimming in volume production. |
| Capacitive-load immunity | Stable with 0µF to 100µF output capacitance - simplifies layout in noisy environments requiring large decoupling or EMI filtering. |
| High transient immunity | Load-step response settles within 2µs to ±500µV - maintains reference integrity during rapid DAC code changes or multiplexer switching. |
Applications
| High-Resolution Data Acquisition | Digital Voltmeters |
|---|---|
|
Use Scenario: 16-bit sigma-delta ADC front-end in portable multimeters measuring 0–10V full-scale with 1µV resolution. IC Role / Device Role / Timing Role: Primary voltage reference establishing absolute scale for analog input conversion; no timing function. Use Value: 5.0ppm/°C tempco and 2.4µVP-P noise ensure <0.005% total error over temperature and time, meeting Class 0.01 DVM standards. |
Use Scenario: Benchtop digital voltmeter requiring traceable 4.096V reference for auto-ranging and self-calibration routines. IC Role / Device Role / Timing Role: Precision DC reference source for internal ADC and DAC-based null detection circuits; no timing role. Use Value: 20ppm/1000h long-term stability eliminates annual recalibration; ±0.02% initial accuracy enables factory calibration with single-point trim. |
| Industrial Process Controllers | ATE Equipment |
|
Use Scenario: 4–20mA transmitter module in hazardous-area PLC I/O cards needing stable excitation for RTD/thermocouple signal conditioning. IC Role / Device Role / Timing Role: Reference for precision current-source DAC generating loop current; no timing function. Use Value: ±15mA sink/source capability drives 250Ω sense resistor directly; load-regulation spec ensures <10ppm error under varying loop impedance. |
Use Scenario: Automated test system channel card providing calibrated reference voltages to DUTs during parametric testing. IC Role / Device Role / Timing Role: Stable DC reference for stimulus generation and measurement comparison; no timing role. Use Value: 8µs turn-on settling enables <100ms per-test-cycle throughput; NR pin allows noise optimization per test fixture parasitics. |
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, SO-8, 3.3–36V supply | Lower noise and tempco but requires ≥3.3V supply; not suitable for 8V-only systems | Select when ultra-low noise (<1.6µVP-P) and tighter tempco (3ppm/°C) justify higher cost and supply flexibility. |
| ADR444BRZ | 4.096V, 3ppm/°C max, 1.8µVP-P, SO-8, 7–36V supply, 4.5mA IQ | Higher quiescent current (4.5mA vs. 2.9mA); superior PSRR but larger die size | Select when supply ripple rejection >80dB is prioritized over power efficiency in high-noise plant-floor environments. |
Compared with REF5040IDR and ADR444BRZ, the MAX6241BCPA offers optimal balance of industrial temperature range support (–40°C to +85°C), DIP package compatibility for legacy repair, and proven 20ppm/1000h stability-making it preferred for field-deployed instrumentation where long-term reliability outweighs marginal noise improvements.
Availability
MAX6241BCPA is available at Aetrix Electronics and suitable for high-resolution analog-to-digital converters, digital voltmeters, and industrial process controllers requiring stable component supply with guaranteed long-term availability.
Supply support for MAX6241BCPA 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, medical, and communications applications.
The MAX62xx family was designed specifically for metrology-grade voltage referencing in 16-bit+ data-conversion systems, emphasizing ultra-low drift, low noise, and robust load-driving capability in harsh environments.
FAQ
What is the maximum operating temperature range for MAX6241BCPA?
The MAX6241BCPA is rated for operation from –40°C to +85°C (industrial temperature range). This is confirmed by its "E" grade designation in the ordering table and validated across all electrical characteristics in the datasheet's E-grade columns. The MAX6241BCPA maintains full specification compliance-including 5.0ppm/°C tempco and ±0.02% initial accuracy-throughout this range.
Can MAX6241BCPA drive a 250Ω load at full scale?
Yes, the MAX6241BCPA can drive a 250Ω load at 4.096V (16.38mA), exceeding its ±15mA specified output current capability. Load regulation remains ≤7ppm/mA in sourcing mode, resulting in <0.12mV error-well within 16-bit LSB (63µV) requirements. The device remains stable with any capacitive load up to 100µF, supporting common sensor interface configurations.
Does MAX6241BCPA require an external capacitor on the NR pin?
No, the NR pin is optional: leave it open if wideband noise reduction is not required. When used, a 1µF capacitor to GND reduces integrated 0.1Hz–1kHz noise by ~30%, as verified in Figure 11 of the datasheet. Larger values provide diminishing returns; the MAX6241BCPA functions fully without any NR capacitor.
Is MAX6241BCPA pin-compatible with other MAX62xx variants?
Yes, all MAX6225/MAX6241/MAX6250 devices share identical 8-pin DIP/SO pinouts and terminal functions-including IN, NR, GND, TRIM, and OUT. The MAX6241BCPA uses the same physical layout as MAX6225BCPA and MAX6250BCPA, enabling drop-in replacement in existing 4.096V, 2.5V, or 5V reference designs with only output voltage change.
What is the long-term stability specification for MAX6241BCPA?
The MAX6241BCPA guarantees 20ppm/1000h long-term stability at +25°C, as explicitly stated in the Electrical Characteristics tables for all MAX62xx variants. This value reflects measured drift under accelerated life testing and is independent of temperature grade-applying equally to the "B" grade MAX6241BCPA in its specified operating range.
MAX6241BCPA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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:
- 5ppm/°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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
MAX6241BCPA FAQ
1.How can I place an order for MAX6241BCPA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6241BCPA 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 MAX6241BCPA reliable?
The price and inventory of MAX6241BCPA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6241BCPA is usually 5 days.
3.What payment methods are accepted for MAX6241BCPA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6241BCPA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6241BCPA?
MAX6241BCPA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6241BCPA 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 MAX6241BCPA?
For technical support, including MAX6241BCPA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6241BCPA requirements.
6.How does Aetrix verify that MAX6241BCPA is sourced from the original manufacturer or authorized distributors?
All MAX6241BCPA 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 MAX6241BCPA meets industry standards.
7.What is the process for return or replacement of MAX6241BCPA?
All MAX6241BCPA units undergo pre-shipment inspection (PSI). If there is an issue with MAX6241BCPA, 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 MAX6241BCPA part is unused and in its original packaging.
Return procedure for MAX6241BCPA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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