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Analog Devices Inc./Maxim Integrated MAX6250ACSA+T
- Part No.:
- MAX6250ACSA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6250ACSA+T.pdf
- Description:
- IC VREF SERIES 0.02% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,388
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Product details
Overview
MAX6250ACSA+T from Maxim Integrated is a precision 5.000V buried-zener voltage reference IC with 1.0ppm/°C temperature coefficient, ±0.02% initial accuracy, and 3.0µVP-P (0.1Hz–10Hz) output noise-designed for high-resolution ADC/DAC biasing in metrology-grade instrumentation and ATE systems.
For engineers reviewing the MAX6250ACSA+T datasheet, MAX6250ACSA+T pinout, MAX6250ACSA+T application, or MAX6250ACSA+T 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 circuitry.
Technical Context
The MAX6250ACSA+T employs buried-zener core technology with on-chip temperature compensation to achieve laboratory-grade stability without heater power. Its output remains stable across 0°C to +70°C ambient and supports capacitive loads up to 100µF without oscillation.
It features dual-path regulation: line regulation of ≤7ppm/V (10V–36V input), load regulation of ≤6ppm/mA (sourcing), and transient response settling to ±0.01% in 10µs-enabling use in fast-switching data acquisition systems requiring minimal reference drift during dynamic load changes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.000V ±1mV at +25°C - ensures direct compatibility with 5V full-scale 16-bit ADCs (±0.02% initial error) |
| Temp Coefficient | 1.0ppm/°C max (0°C to +70°C) - contributes ≤0.05mV drift over industrial temperature range |
| Output Noise | 3.0µVP-P (0.1Hz–10Hz) - enables <18-bit ENOB in precision digitizers without external filtering |
| Load Current | ±15mA sourcing/sinking - supports driving multiple op-amp buffers or SAR ADC reference inputs simultaneously |
| Long-Term Stability | 20ppm/1000h - guarantees ≤0.1mV drift per 1000 hours in calibration-critical equipment |
| Supply Current | 2.0mA to 3.3mA - enables low-power operation in battery-backed metrology modules |
| Input Voltage Range | 8V to 36V - allows use with unregulated DC rails common in industrial power supplies |
Pinout & Package
MAX6250ACSA+T is housed in an 8-pin SO (Small Outline) package with industry-standard footprint (S8+5, outline 21-0041), RoHS-compliant, and rated for 0°C to +70°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 8 | I.C. | Internally connected; no external connection required - must be left unconnected |
| 2 | IN | Positive supply input (8V–36V); internal current-limiting protects against overvoltage transients |
| 3 | NR | Noise reduction node; accepts 1µF capacitor to reduce wideband noise by >20dB above 10Hz |
| 4 | GND | Analog ground reference; requires low-impedance star connection to minimize ground bounce |
| 5 | TRIM | External voltage adjust input; enables ±30mV (±0.6%) trimming via 10kΩ potentiometer without degrading tempco |
| 6 | OUT | Stable 5.000V reference output; capable of sourcing/sinking ±15mA with <10µV/mA load regulation |
Key Features
| Feature | Design Value |
|---|---|
| Buried-zener core | Delivers lowest 1/f noise (3.0µVP-P) among 5V references - critical for sub-µV measurement front-ends |
| Optional NR capacitor | 1µF on NR pin reduces broadband noise by 50% without affecting DC accuracy or stability margin |
| Trim-adjustable output | ±30mV adjustment range (±0.6%) preserves ±0.02% initial accuracy after calibration - eliminates need for laser trimming |
| Capacitive-load immunity | Stable with 0µF to 100µF output capacitance - simplifies layout in noisy environments with long traces or EMI filters |
| Fast turn-on settling | 10µs to ±0.01% final value - enables power-gated reference usage in low-duty-cycle portable test equipment |
Applications
| High-Resolution Data Acquisition | Digital Voltmeter Calibration |
|---|---|
|
Use Scenario: 16-bit SAR ADC sampling thermocouple signals in automated calibration labs. IC Role / Device Role / Timing Role: Primary voltage reference providing stable 5.000V full-scale reference for ADC conversion. Use Value: 1.0ppm/°C tempco and 20ppm/1000h stability ensure <±1 LSB error over 1 year without recalibration. |
Use Scenario: Benchtop DVM requiring traceable 5V reference for self-test and auto-zero functions. IC Role / Device Role / Timing Role: Precision reference source for internal DAC-based nulling and gain calibration loops. Use Value: ±0.02% initial accuracy and 3.0µVP-P noise enable 7½-digit resolution with <0.001% linearity error. |
| ATE Pin Electronics | Precision Current Source Reference |
|
Use Scenario: Channel-level reference in semiconductor test handlers performing parametric leakage measurements. IC Role / Device Role / Timing Role: Bias reference for programmable current sources delivering 100nA–10mA with <100ppm accuracy. Use Value: ±15mA sourcing/sinking capability allows direct drive of MOSFET gate drivers without buffer amplifiers. |
Use Scenario: Setpoint reference in programmable lab power supplies generating 0–5A with <10ppm current stability. IC Role / Device Role / Timing Role: Stable 5.000V reference for op-amp-based Howland current source feedback network. Use Value: Low output impedance (<1Ω at 1kHz) and excellent transient response prevent current droop during step-load events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5050AIDR | 5.0V, 3ppm/°C max, 4.5µVP-P noise, 10mA max output, SO-8 | Higher tempco and noise; lower output current; no TRIM/NR pins | Lower-cost option where ±0.05% accuracy and 18-bit ENOB are sufficient |
| ADR4550BRZ | 5.0V, 3ppm/°C max, 1.75µVRMS (0.1–10Hz), 10mA max output, SO-8 | Lower noise but no external trim; requires external capacitor for noise reduction | Preferred when ultra-low noise is prioritized over field calibration flexibility |
Compared with REF5050AIDR and ADR4550BRZ, the MAX6250ACSA+T uniquely combines 1.0ppm/°C tempco, ±15mA drive, and integrated TRIM/NR functionality in a single SO-8 package-making it optimal for recalibratable, high-current, metrology-grade systems where long-term stability and design flexibility are non-negotiable.
Availability
MAX6250ACSA+T is available at Aetrix Electronics and suitable for high-resolution analog-to-digital converters, digital voltmeters, and ATE equipment requiring stable component supply with guaranteed long-term performance consistency.
Supply support for MAX6250ACSA+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 delivers laboratory-grade voltage references using buried-zener technology-targeted specifically at metrology, calibration, and high-end data acquisition systems demanding sub-ppm stability.
FAQ
What is the maximum output current capability of the MAX6250ACSA+T?
The MAX6250ACSA+T can source and sink up to ±15mA while maintaining specified line and load regulation. This allows direct interfacing with multiple op-amp buffers or high-current reference buffers without external gain stages, preserving accuracy and reducing board space in multi-channel DAQ systems.
Does the MAX6250ACSA+T require an external capacitor on the NR pin?
No-the NR pin of the MAX6250ACSA+T may be left open if wideband noise reduction is not required. When used, a 1µF capacitor on NR reduces output noise significantly above 10Hz; larger values provide diminishing returns and are not recommended per the datasheet.
Can the output voltage of the MAX6250ACSA+T be adjusted, and how much range is available?
Yes-the MAX6250ACSA+T supports external trimming via the TRIM pin. Using a 10kΩ potentiometer between OUT and GND with its wiper connected to TRIM provides ±30mV (±0.6%) adjustment range while preserving the 1.0ppm/°C temperature coefficient and initial ±0.02% accuracy.
Is the MAX6250ACSA+T stable with large output capacitors?
Yes-the MAX6250ACSA+T is explicitly characterized and guaranteed stable with output capacitance from 0µF to 100µF across all load currents. This eliminates the need for series resistance or isolation components when using bulk decoupling or EMI filtering capacitors on the reference output.
What is the long-term stability specification for the MAX6250ACSA+T, and how is it measured?
The MAX6250ACSA+T exhibits 20ppm/1000h long-term stability at +25°C, measured as output voltage drift under continuous operation. This metric reflects real-world aging behavior in calibrated instruments and ensures predictable performance over years of deployment in metrology and test equipment.
MAX6250ACSA+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):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 15 mA
- Tolerance:
- ±0.02%
- Temperature Coefficient:
- 2ppm/°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
MAX6250ACSA+T FAQ
1.How can I place an order for MAX6250ACSA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6250ACSA+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 MAX6250ACSA+T reliable?
The price and inventory of MAX6250ACSA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6250ACSA+T is usually 5 days.
3.What payment methods are accepted for MAX6250ACSA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6250ACSA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6250ACSA+T?
MAX6250ACSA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6250ACSA+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 MAX6250ACSA+T?
For technical support, including MAX6250ACSA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6250ACSA+T requirements.
6.How does Aetrix verify that MAX6250ACSA+T is sourced from the original manufacturer or authorized distributors?
All MAX6250ACSA+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 MAX6250ACSA+T meets industry standards.
7.What is the process for return or replacement of MAX6250ACSA+T?
All MAX6250ACSA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6250ACSA+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 MAX6250ACSA+T part is unused and in its original packaging.
Return procedure for MAX6250ACSA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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