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Analog Devices Inc./Maxim Integrated MAX6250BCSA-T
- Part No.:
- MAX6250BCSA-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6250BCSA-T.pdf
- Description:
- IC VREF SERIES 0.1% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,630
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Product details
Overview
MAX6250BCSA-T from Maxim Integrated is a precision 5.000V buried-zener voltage reference IC with 5.0ppm/°C max temperature coefficient, ±0.02% initial accuracy, and 3.0µVP-P (0.1Hz–10Hz) output noise-designed for high-resolution ADC/DAC biasing in test equipment and industrial control systems.
For engineers reviewing the MAX6250BCSA-T datasheet, MAX6250BCSA-T pinout, MAX6250BCSA-T application, or MAX6250BCSA-T equivalent, key selection criteria include guaranteed ±15mA sourcing/sinking capability, 8V–36V input range, low 20ppm/1000h long-term stability, and SO-8 package compatibility with industry-standard layout footprints.
Technical Context
The MAX6250BCSA-T employs buried-zener topology with on-chip temperature compensation to achieve flat thermal drift across –40°C to +85°C. Its output stage delivers stable 5.000V reference under load currents from –15mA to +15mA while maintaining ≤6ppm/mA load regulation (typical) and ≤5ppm/V line regulation over 10V–36V input range.
Internal noise reduction circuitry supports external 1µF capacitor on NR pin to suppress wideband noise; TRIM pin enables ±30mV (±0.6%) output adjustment without degrading temperature stability. Output impedance remains below 1Ω up to 10kHz, ensuring minimal interaction with downstream sampling circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.000V ±0.005V at +25°C - ensures 16-bit DAC/ADC full-scale accuracy without calibration. |
| Temp Coefficient | 5.0ppm/°C max (–40°C to +85°C) - limits voltage drift to ±0.4mV over full industrial range. |
| Initial Accuracy | ±0.02% - guarantees absolute error ≤±1mV at power-up, reducing system offset correction burden. |
| Output Noise | 3.0µVP-P (0.1Hz–10Hz), 2.5µVRMS (10Hz–1kHz) - preserves SNR in precision measurement front-ends. |
| Load Current | ±15mA sourcing/sinking - drives multiple op-amp references or ADC reference inputs directly. |
| Input Range | 8V to 36V - accommodates unregulated supplies and eliminates need for pre-regulation in many industrial designs. |
| Long-Term Stability | 20ppm/1000h - ensures <±0.1mV drift per 1000 hours, critical for metrology-grade instruments. |
Pinout & Package
MAX6250BCSA-T is housed in an 8-pin SO (Small Outline) package with standard 1.27mm pitch, RoHS-compliant lead finish, and JEDEC MS-012AC outline. Pin 1 is marked by notch or dot; 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; accepts 8V–36V; internal current limiting protects against overvoltage. |
| 3 | NR | Noise reduction node; connect 1µF capacitor to GND to reduce wideband output noise by >15dB. |
| 4 | GND | Analog ground reference; requires low-impedance star connection to minimize ground bounce errors. |
| 5 | TRIM | Voltage adjust input; ±30mV trim range via 10kΩ potentiometer between OUT and GND. |
| 6 | OUT | Stable 5.000V reference output; capable of driving capacitive loads up to 100µF without oscillation. |
Key Features
| Feature | Design Value |
|---|---|
| Buried-zener core | Delivers lowest possible 1/f noise and superior long-term stability vs. bandgap references. |
| Trim-adjustable output | ±30mV fine-tuning range allows system-level calibration without trimming external resistors. |
| Capacitive-load immunity | Stable with 0µF to 100µF output capacitance - eliminates need for isolation resistors in noisy environments. |
| High PSRR | ≥80dB ripple rejection at 1kHz (with NR cap) - maintains reference integrity when powered from switchers. |
| Fast turn-on settling | 10µs to ±0.01% final value - enables rapid power cycling in automated test equipment. |
Applications
| Digital Voltmeter Reference | 16-Bit Industrial ADC Bias |
|---|---|
Use Scenario: High-accuracy benchtop DVM measuring 0–10V full scale with 100nV resolution. IC Role / Device Role / Timing Role: Primary 5.000V reference for dual-slope integrator and ADC conversion chain. Use Value: ±0.02% initial accuracy and 5.0ppm/°C tempco ensure <±0.5LSB error over temperature, meeting Class A DVM standards. | Use Scenario: Factory-floor PLC analog input module digitizing 4–20mA sensor signals. IC Role / Device Role / Timing Role: Precision reference for SAR ADC sampling thermocouple and RTD front-ends. Use Value: ±15mA drive capability powers multiple instrumentation amplifiers and ADC references simultaneously without gain error. |
| ATE Equipment Reference | Precision Current Source Calibration |
Use Scenario: Semiconductor automatic test handler requiring sub-mV reference stability during wafer probing. IC Role / Device Role / Timing Role: Master reference for programmable voltage sources and comparator thresholds. Use Value: 20ppm/1000h long-term stability minimizes recalibration frequency, reducing test downtime by >40%. | Use Scenario: Calibrator generating 100mA precision current using op-amp + MOSFET with sense resistor. IC Role / Device Role / Timing Role: Reference for current-setting DAC and feedback amplifier. Use Value: 3.0µVP-P low-frequency noise prevents current ripple that would corrupt µA-level measurements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5050IDR | Bandgap-based, 3ppm/°C max, 5.0V output, 1.6µVP-P noise, SO-8 package. | Lacks buried-zener ultra-stability; better for cost-sensitive, lower-precision systems. | Choose REF5050IDR if 3ppm/°C tempco suffices and lower noise floor is prioritized over long-term drift. |
| ADR4550BRZ | XFCB buried-zener, 3ppm/°C max, 5.0V output, 2.75µVP-P noise, SO-8 package. | Higher initial accuracy (±0.01%), tighter tempco, but limited to ±10mA load current. | Choose ADR4550BRZ where ±10mA drive is sufficient and tighter initial tolerance justifies premium cost. |
Compared with REF5050IDR and ADR4550BRZ, the MAX6250BCSA-T offers superior load-drive capability (±15mA) and proven industrial temperature range performance, making it optimal for high-current, high-reliability reference applications where long-term stability outweighs marginal noise improvements.
Availability
MAX6250BCSA-T is available at Aetrix Electronics and suitable for digital voltmeters, 16-bit industrial ADC biasing, and ATE equipment requiring stable component supply with guaranteed long-term availability and traceable lot documentation.
Supply support for MAX6250BCSA-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 where ultra-low drift, low noise, and high output drive define system accuracy-especially in data acquisition, calibration, and test instrumentation.
FAQ
What is the maximum allowable input voltage for MAX6250BCSA-T?
The MAX6250BCSA-T supports an input voltage range of 8V to 36V. Absolute maximum rating is +40V on the IN pin, but operation above 36V is not characterized and may compromise long-term reliability or parametric performance. For robust design, maintain VIN ≤ 36V under all operating conditions including transients.
Can MAX6250BCSA-T drive a 10µF output capacitor without instability?
Yes, the MAX6250BCSA-T is explicitly specified to be stable with capacitive loads from 0µF to 100µF across its full operating temperature and load current range. This eliminates the need for series isolation resistors and simplifies filtering in high-noise industrial environments where large bulk capacitance is used.
Does the TRIM pin on MAX6250BCSA-T affect temperature coefficient?
No-the external trim circuitry on the TRIM pin of MAX6250BCSA-T adjusts only the nominal output voltage and does not degrade the 5.0ppm/°C temperature coefficient. The datasheet confirms that trimming preserves the inherent thermal stability of the buried-zener core, enabling system-level calibration without sacrificing drift performance.
What is the typical supply current of MAX6250BCSA-T at +25°C?
The typical supply current of MAX6250BCSA-T is 2.5mA at +25°C and VIN = 10V. Maximum supply current is specified as 3.3mA across the full –40°C to +85°C temperature range and 8V–36V input voltage range, supporting accurate power budgeting in low-power industrial sensors.
Is MAX6250BCSA-T RoHS-compliant and lead-free?
Yes, MAX6250BCSA-T carries the "+" suffix per Maxim's ordering nomenclature, indicating a lead(Pb)-free and RoHS-compliant package. It uses matte tin plating on leads and meets JEDEC J-STD-020 moisture sensitivity level 3 (MSL-3), suitable for standard reflow assembly processes.
MAX6250BCSA-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:
- Obsolete
- Reference Type:
- Series, Buried Zener
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 15 mA
- Tolerance:
- ±0.1%
- Temperature Coefficient:
- 5ppm/°C
- Noise - 0.1Hz to 10Hz:
- 3µVp-p
- Noise - 10Hz to 10kHz:
- 2.5µVrms
- Voltage - Input:
- 8V ~ 36V
- Current - Supply:
- 3.3mA
- Current - Cathode:
- -
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX6250BCSA-T FAQ
1.How can I place an order for MAX6250BCSA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6250BCSA-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 MAX6250BCSA-T reliable?
The price and inventory of MAX6250BCSA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6250BCSA-T is usually 5 days.
3.What payment methods are accepted for MAX6250BCSA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6250BCSA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6250BCSA-T?
MAX6250BCSA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6250BCSA-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 MAX6250BCSA-T?
For technical support, including MAX6250BCSA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6250BCSA-T requirements.
6.How does Aetrix verify that MAX6250BCSA-T is sourced from the original manufacturer or authorized distributors?
All MAX6250BCSA-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 MAX6250BCSA-T meets industry standards.
7.What is the process for return or replacement of MAX6250BCSA-T?
All MAX6250BCSA-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6250BCSA-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 MAX6250BCSA-T part is unused and in its original packaging.
Return procedure for MAX6250BCSA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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