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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:2,863
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Product details
Overview
MAX6241BCPA+ from Maxim Integrated is a precision 4.096V buried-zener voltage reference IC 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, key selection criteria include its 4.096V output matching common 12-bit DAC full-scale ranges, 15mA sink/source capability for active reference buffering, low-noise performance critical for ≤16-bit converters, and compatibility with standard 8-pin PDIP footprints.
Technical Context
The MAX6241BCPA+ employs buried-zener core technology with on-chip temperature compensation to achieve laboratory-grade stability without heater power. Its output is trimmed at wafer level to meet ±0.02% initial accuracy across 0°C to +70°C ambient.
It supports external trimming via the TRIM pin (±24mV range), optional noise reduction via NR pin capacitor (1µF typical), and operates stably with capacitive loads from 0µF to 100µF-enabling direct interface with SAR and sigma-delta ADC sample-and-hold inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096V nominal (4.092V to 4.100V min/max at +25°C); matches 12-bit DAC full-scale and 16-bit ADC LSB scaling. |
| Temp Coefficient | 5.0ppm/°C max (0°C to +70°C); ensures ≤±0.35mV drift over industrial ambient range. |
| Initial Accuracy | ±0.02% (±0.82mV at 4.096V); eliminates need for system-level calibration in metrology-grade instruments. |
| Output Noise | 2.4µVP-P (0.1Hz–10Hz); contributes <0.6 LSB noise in 16-bit 4.096V-range systems. |
| Load Regulation | ≤6ppm/mA sourcing (0–15mA); maintains stability when driving ADC reference inputs or op-amp buffers. |
| Supply Current | 2.9mA typical (3.2mA max); enables low-power operation in battery-backed precision sensors. |
| Long-Term Stability | 20ppm/1000h; guarantees <±0.08mV drift per 1000 hours-critical for unattended test equipment. |
Pinout & Package
MAX6241BCPA+ uses an 8-pin plastic DIP (dual in-line package) with 0.3-inch body width and through-hole mounting. Pin 1 is top-left corner when notch faces up; pins 1, 7, and 8 are internally connected and must remain unconnected in PCB layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 8 | I.C. (Internally Connected) | No external connection required; floating or tied to GND has no functional effect. |
| 2 | IN | Positive supply input (8V–36V); requires local 0.1µF bypass to GND for ripple rejection. |
| 3 | NR | Noise reduction node; connect 1µF capacitor to GND to reduce wideband noise by ~30%. |
| 4 | GND | Analog ground reference; must be star-connected to minimize ground bounce in mixed-signal systems. |
| 5 | TRIM | External trim input; accepts 10kΩ potentiometer between OUT and GND for ±24mV adjustment. |
| 6 | OUT | Stable 4.096V reference output; capable of sourcing/sinking ±15mA with minimal regulation error. |
Key Features
| Feature | Design Value |
|---|---|
| Buried-zener core | Delivers lowest 1/f noise among precision references-2.4µVP-P (0.1Hz–10Hz)-enabling true 16-bit converter resolution. |
| Optional noise reduction | NR pin accepts 1µF capacitor to suppress broadband noise without affecting DC accuracy or settling time. |
| External voltage trim | TRIM pin allows ±24mV fine adjustment (±0.58%) post-assembly, enabling board-level calibration without firmware changes. |
| Capacitive load immunity | Stable with 0–100µF output capacitance-eliminates need for isolation resistors when driving ADC input filters. |
| High transient response | Settles within 8µs to ±0.01% after load step; prevents reference droop during fast ADC sampling bursts. |
Applications
| High-Resolution Data Acquisition | Digital Voltmeter (DVM) |
|---|---|
|
Use Scenario: 16-bit SAR ADC in portable multimeter measuring 0–4.096V input range with 6½-digit display resolution. IC Role / Device Role / Timing Role: Primary voltage reference providing stable 4.096V full-scale reference for ADC conversion. Use Value: ±0.02% initial accuracy and 5ppm/°C tempco ensure ≤±0.5 LSB total error across 0–50°C operating range without recalibration. |
Use Scenario: Benchtop DVM requiring 0.001% absolute accuracy over 1-year calibration interval. IC Role / Device Role / Timing Role: Precision reference source for auto-zeroed dual-slope integrator front-end. Use Value: 20ppm/1000h long-term stability minimizes drift-induced calibration drift-reducing annual recalibration frequency. |
| ATE Equipment Reference | Precision Current Source |
|
Use Scenario: Automated test system generating programmable 4.096V reference for DUT biasing and measurement validation. IC Role / Device Role / Timing Role: Stable excitation source for Kelvin sensing and ratiometric measurements. Use Value: ±15mA sink/source capability enables direct drive of 100Ω sense resistors without buffer op-amps-reducing component count and thermal EMF errors. |
Use Scenario: 4–20mA transmitter using 4.096V reference to set loop current via precision resistor and op-amp. IC Role / Device Role / Timing Role: Voltage reference defining current setpoint in transconductance stage. Use Value: Low 2.4µVP-P noise ensures current output ripple remains below 0.005% FS-meeting Class A industrial transmitter specs. |
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 package, higher quiescent current (4.5mA). | Better tempco and noise, but higher power and surface-mount only-requires PCB redesign. | Select when ultra-low drift and noise outweigh layout change cost; not drop-in for through-hole designs. |
| ADR444BRZ | 4.096V, 3ppm/°C max, 1.8µVP-P noise, SO-8, buried-zener, 3.5mA supply current. | Superior stability and lower noise, but incompatible pinout and no TRIM/NR pins-limits flexibility. | Choose for highest accuracy where external trim and noise filtering are handled externally or unnecessary. |
Compared with REF5040IDR and ADR444BRZ, the MAX6241BCPA+ offers unique value in through-hole compatibility, integrated TRIM/NR functionality, and balanced performance for cost-sensitive industrial instrumentation-without requiring layout revision or external components for basic trimming or noise control.
Availability
MAX6241BCPA+ is available at Aetrix Electronics and suitable for high-resolution analog-to-digital conversion, digital voltmeter design, and automated test equipment requiring stable component supply with traceable lot history and extended lifecycle support.
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 high-performance analog, mixed-signal, and power management ICs for industrial, communications, and computing applications.
The MAX62xx series was designed specifically for metrology-grade voltage reference needs in data converters and precision instrumentation-prioritizing low noise, tight initial tolerance, and long-term stability over cost or integration density.
FAQ
What is the maximum operating temperature range for MAX6241BCPA+?
The MAX6241BCPA+ is rated for 0°C to +70°C ambient operation. Its temperature coefficient is specified at 5.0ppm/°C maximum across this range, and all electrical characteristics-including output voltage accuracy, line/load regulation, and noise-are guaranteed within these limits. Operation outside this range may cause parametric degradation or permanent damage.
Does MAX6241BCPA+ require an external capacitor on the NR pin?
No, the NR pin on MAX6241BCPA+ is optional: leaving it open provides baseline noise performance (2.4µVP-P). Adding a 1µF capacitor to GND reduces wideband noise by ~30%, but does not affect DC accuracy, temperature coefficient, or settling time. Larger values yield diminishing returns per the datasheet's Typical Operating Characteristics.
Can MAX6241BCPA+ drive a 10kΩ load directly?
Yes-MAX6241BCPA+ can source or sink up to ±15mA while maintaining specified load regulation (≤6ppm/mA). A 10kΩ load at 4.096V draws only 0.41mA, well within capability. Output voltage deviation under this load is ≤0.0025mV, far below the ±0.82mV initial accuracy band.
Is MAX6241BCPA+ RoHS-compliant?
Yes, MAX6241BCPA+ carries the "+" suffix indicating lead(Pb)-free and RoHS-compliant packaging per EU Directive 2011/65/EU. The 8-pin plastic DIP package uses matte tin lead finish and complies with JEDEC J-STD-609A Class 1 marking requirements.
How does the TRIM pin function on MAX6241BCPA+?
The TRIM pin on MAX6241BCPA+ accepts a voltage divider between OUT and GND to adjust output by ±24mV (±0.58%). A 10kΩ potentiometer connected as shown in Figure 1 enables precise post-assembly calibration. This adjustment does not degrade temperature coefficient or long-term stability-verified in the datasheet's Detailed Description section.
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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