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Analog Devices Inc./Maxim Integrated MAX6241BCSA+
- Part No.:
- MAX6241BCSA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6241BCSA+.pdf
- Description:
- IC VREF SERIES 0.1% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:100
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Product details
Overview
MAX6241BCSA+ 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 test equipment and industrial control systems.
For engineers reviewing the MAX6241BCSA+ datasheet, MAX6241BCSA+ pinout, MAX6241BCSA+ application, or MAX6241BCSA+ equivalent, key selection criteria include guaranteed ±15mA sourcing/sinking capability, 8-pin SO package compatibility, low 20ppm/1000h long-term stability, and optional external trim/noise reduction support.
Technical Context
This device uses buried-zener topology with on-chip temperature compensation to achieve near-zero curvature over –40°C to +85°C, enabling lab-grade stability without heater power. Its low 18mW typical supply current and stable operation into 0–100µF capacitive loads simplify integration into space-constrained, low-power precision analog signal chains.
Internal trimming circuitry allows ±24mV adjustment (±0.59%) via external potentiometer without degrading temperature performance. The NR pin supports 1µF capacitor addition to reduce wideband noise by >10dB above 10Hz while maintaining fast 8µs turn-on settling to ±0.01%.
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 SAR/ΣΔ ADCs using 4.096V full-scale reference. |
| Tempco (max) | 5.0ppm/°C - limits drift to ≤±0.42mV over –40°C to +85°C ambient, critical for uncalibrated field instrumentation. |
| Noise (0.1–10Hz) | 2.4µVP-P - contributes <0.0004 LSB error in 16-bit 4.096V systems, preserving effective resolution. |
| Load Regulation | ≤6ppm/mA sourcing - maintains output stability under dynamic load shifts up to ±15mA, e.g., during DAC buffer switching. |
| Line Regulation | ≤7ppm/V (10–36V input) - rejects supply ripple without external regulators, supporting direct connection to unregulated rails. |
| Long-Term Stability | 20ppm/1000h - enables calibration intervals ≥1 year in metrology-grade equipment without recalibration. |
| Supply Current | 2.9mA typical - permits battery-powered portable calibrators and handheld DMMs with multi-year runtime. |
Pinout & Package
MAX6241BCSA+ is housed in an industry-standard 8-pin SO (Small Outline) package, RoHS-compliant with lead-free finish (+ suffix), footprint compatible with JEDEC MS-012AA outline and land pattern 90-0096.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 8 | I.C. | Internally connected; electrically isolated from user circuit-must remain unconnected per datasheet. |
| 2 | IN | Positive supply input (8–36V); internal current source powers zener core-no external regulator needed. |
| 3 | NR | Noise reduction node; accepts 1µF capacitor to suppress wideband noise without affecting DC accuracy. |
| 4 | GND | Analog ground reference; must be star-connected to minimize ground bounce in mixed-signal PCBs. |
| 5 | TRIM | External voltage adjust input; ±24mV trim range enables fine-tuning of system gain/offset without recalibration. |
| 6 | OUT | Precision 4.096V reference output; capable of sourcing/sinking ±15mA with <10µV/mA load-induced shift. |
Key Features
| Feature | Design Value |
|---|---|
| Buried-zener architecture | Delivers lowest 1/f noise (2.4µVP-P) and highest long-term stability (20ppm/1000h) among monolithic references. |
| Optional noise reduction | 1µF capacitor on NR pin reduces broadband noise >10Hz by 10–15dB-critical for FFT-based spectral analysis systems. |
| External voltage trim | ±24mV adjustment range (±0.59%) preserves factory accuracy while enabling system-level calibration compensation. |
| Capacitive load immunity | Stable with 0–100µF output capacitance-eliminates need for isolation resistors in noisy environments with large decoupling caps. |
| Fast turn-on settling | 8µs to ±0.01% final value enables burst-mode operation in automated test equipment (ATE) with minimal dead time. |
Applications
| High-Resolution Data Acquisition | Digital Voltmeters (DVM) |
|---|---|
Use Scenario: 16-bit simultaneous-sampling ADC module in portable power quality analyzer measuring RMS voltage/current harmonics. IC Role / Device Role / Timing Role: Primary voltage reference for ADC front-end, defining full-scale range and quantization step size. Use Value: 5.0ppm/°C tempco and 2.4µVP-P noise ensure <0.001% measurement repeatability across operating temperature range without recalibration. | Use Scenario: Benchtop 6½-digit DVM requiring traceable 4.096V reference for autoranging and auto-zero functions. IC Role / Device Role / Timing Role: Stable excitation source for dual-slope integrator and reference for ADC conversion clock timing. Use Value: 20ppm/1000h long-term stability eliminates annual calibration drift, reducing maintenance cost and downtime. |
| ATE Equipment | Precision Current Sources |
Use Scenario: Channel card in semiconductor ATE system generating programmable bias voltages for DUT power supply sequencing. IC Role / Device Role / Timing Role: Reference for DAC-controlled voltage setpoint generation and feedback loop reference in closed-loop regulators. Use Value: ±15mA sourcing/sinking capability enables direct drive of op-amp summing junctions without external buffers, saving board area and cost. | Use Scenario: Programmable 4-quadrant current source for sensor excitation in industrial pressure transmitters. IC Role / Device Role / Timing Role: Precision voltage reference for Howland current pump configuration, defining output compliance and accuracy. Use Value: Low 18mW power consumption allows integration into thermally constrained transmitter housings without derating. |
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, but requires 4.5–18V input and draws 1.1mA higher quiescent current. | Lower noise suits ultra-high-resolution 24-bit delta-sigma systems; higher supply current limits battery life. | Select REF5040IDR when sub-2µVP-P noise is mandatory and supply headroom allows ≥4.5V input. |
| ADR444BRZ | 4.096V, 3ppm/°C max, 1.8µVP-P noise, but only rated for ±10mA load and lacks TRIM/NR pins. | Compact SOIC-8 footprint matches, but no external trim prevents system-level calibration correction. | Choose ADR444BRZ for fixed-reference designs where factory calibration suffices and load stays ≤±10mA. |
Compared with REF5040IDR and ADR444BRZ, MAX6241BCSA+ offers superior load drive (±15mA), integrated trim/noise-reduction flexibility, and lower power-making it optimal for field-deployable, recalibratable instrumentation where design margin and serviceability matter.
Availability
MAX6241BCSA+ is available at Aetrix Electronics and suitable for high-resolution data acquisition, digital voltmeters, and ATE equipment requiring stable component supply with full traceability and long-lifecycle support.
Supply support for MAX6241BCSA+ 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 demanding sub-ppm/°C stability and ultra-low noise without heated oven compensation.
FAQ
What is the maximum allowable input voltage for MAX6241BCSA+?
The absolute maximum input voltage for MAX6241BCSA+ is +40V, but the recommended operating range is 8V to 36V per the datasheet. Operation above 36V risks exceeding safe power dissipation limits in the 8-pin SO package, especially at elevated ambient temperatures. For reliable long-term use, maintain VIN ≤ 36V and monitor junction temperature using the 5.88mW/°C derating factor above +70°C ambient.
Can MAX6241BCSA+ drive a 10µF output capacitor without instability?
Yes, MAX6241BCSA+ is explicitly characterized and guaranteed stable with output capacitance from 0µF to 100µF across its full operating temperature and load range. This eliminates the need for series isolation resistors in applications requiring large bulk capacitance for transient suppression-such as portable DVMs or ATE channel cards subject to rapid load switching. Stability holds regardless of whether the capacitor is ceramic, tantalum, or electrolytic.
Does MAX6241BCSA+ support both sourcing and sinking current simultaneously?
MAX6241BCSA+ supports sourcing up to +15mA and sinking down to –15mA, but not simultaneously on the same output node. Its output stage operates in either sourcing or sinking mode depending on external circuit conditions-for example, driving a resistive divider (sourcing) versus sinking current into an op-amp inverting input. The device maintains specified load regulation (≤6ppm/mA) in both directions independently, verified across –40°C to +85°C.
How does the TRIM pin function in MAX6241BCSA+?
The TRIM pin on MAX6241BCSA+ accepts an external voltage between GND and OUT to adjust output voltage by ±24mV (±0.59%). A 10kΩ potentiometer connected between OUT and GND-with its wiper tied to TRIM-provides linear, bidirectional adjustment. Crucially, this external trimming does not degrade the device's specified temperature coefficient or long-term stability, making it ideal for system-level calibration after PCB assembly and thermal cycling.
Is MAX6241BCSA+ compatible with lead-free reflow soldering processes?
Yes, MAX6241BCSA+ carries the "+" suffix indicating RoHS-compliant, lead-free construction and is qualified for standard Pb-free reflow profiles with peak temperature up to +260°C (per JEDEC J-STD-020). The 8-pin SO package uses matte tin plating and passes all required intermetallic reliability tests-including thermal cycling, drop shock, and board flex-ensuring robust solder joint integrity in high-reliability industrial and test equipment assemblies.
MAX6241BCSA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tube
- 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:
- 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:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX6241BCSA+ FAQ
1.How can I place an order for MAX6241BCSA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6241BCSA+ 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 MAX6241BCSA+ reliable?
The price and inventory of MAX6241BCSA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6241BCSA+ is usually 5 days.
3.What payment methods are accepted for MAX6241BCSA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6241BCSA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6241BCSA+?
MAX6241BCSA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6241BCSA+ 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 MAX6241BCSA+?
For technical support, including MAX6241BCSA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6241BCSA+ requirements.
6.How does Aetrix verify that MAX6241BCSA+ is sourced from the original manufacturer or authorized distributors?
All MAX6241BCSA+ 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 MAX6241BCSA+ meets industry standards.
7.What is the process for return or replacement of MAX6241BCSA+?
All MAX6241BCSA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6241BCSA+, 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 MAX6241BCSA+ part is unused and in its original packaging.
Return procedure for MAX6241BCSA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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