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Analog Devices Inc./Maxim Integrated MAX6250BEPA+
- Part No.:
- MAX6250BEPA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX6250BEPA+.pdf
- Description:
- IC VREF SERIES 0.1% 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,974
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Product details
Overview
MAX6250BEPA+ from Maxim Integrated is a precision 5.000V buried-zener voltage reference IC with ±0.02% initial accuracy, 7.0ppm/°C max temperature coefficient over –40°C to +85°C, and 3.0µVP-P (0.1Hz–10Hz) output noise-designed for high-resolution ADC/DAC biasing in metrology-grade instrumentation.
For engineers reviewing the MAX6250BEPA+ datasheet, MAX6250BEPA+ pinout, MAX6250BEPA+ application, or MAX6250BEPA+ equivalent, key selection criteria include guaranteed ±15mA sourcing/sinking capability, stability under all capacitive loads up to 100µF, optional external trim (±30mV), and noise-reduction capacitor support on NR pin.
Technical Context
This device uses buried-zener topology with low-power temperature compensation to achieve near-zero thermal curvature across its full operating range. Its internal architecture supports simultaneous high DC accuracy and low wideband noise via dedicated NR pin filtering and optimized die layout.
It delivers stable 5.000V output with ≤7.0ppm/°C drift over –40°C to +85°C, maintains <5ppm/V line regulation at VIN = 10V–36V, and sustains ±0.01% settling in 10µs-enabling direct use in 16-bit data converters without post-calibration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.000V ±0.005V at +25°C - ensures 16-bit DAC/ADC full-scale reference alignment without trimming. |
| Tempco (Max) | 7.0ppm/°C (–40°C to +85°C) - guarantees ≤±0.35mV total drift across industrial temperature range. |
| Initial Accuracy | ±0.02% - enables absolute measurement accuracy to ±1mV at 5V without factory calibration. |
| Output Noise | 3.0µVP-P (0.1Hz–10Hz) - preserves SNR >110dB in precision digitization paths. |
| Load Regulation | ≤7ppm/mA sourcing (0–15mA) - maintains reference integrity under dynamic load switching. |
| Supply Current | 2.0–3.3mA - enables low-power operation while sustaining 15mA output drive. |
| Long-Term Stability | 20ppm/1000h - ensures <±0.1mV drift per 1000 hours in continuous-use systems. |
Pinout & Package
MAX6250BEPA+ is housed in an 8-pin plastic DIP (dual in-line package) with 0.3-inch body width and through-hole mounting. Pin 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 pins must be left unattached. |
| 2 | IN | Positive supply input (8V–36V); requires local bypass capacitor for ripple rejection. |
| 3 | NR | Noise reduction terminal; accepts 1µF capacitor to reduce wideband output noise. |
| 4 | GND | Analog ground reference; must be star-connected to minimize ground bounce. |
| 5 | TRIM | External voltage adjust input; enables ±30mV (±0.6%) fine-tuning of output voltage. |
| 6 | OUT | Stable 5.000V reference output; capable of sourcing/sinking ±15mA with minimal droop. |
Key Features
| Feature | Design Value |
|---|---|
| Buried-zener core | Delivers lowest 1/f noise (3.0µVP-P) among 5V references in DIP package for metrology applications. |
| Optional NR capacitor | 1µF on NR pin reduces broadband noise by >20dB without affecting DC accuracy or stability. |
| Full-load sourcing/sinking | Guaranteed ±15mA drive capability eliminates need for external buffer in 12–16-bit converter designs. |
| Trim-adjustable output | ±30mV trim range allows system-level calibration to compensate for PCB trace resistance and ADC offset. |
| Capacitive load immunity | Stable with 0–100µF output capacitance-supports low-ESR ceramic or tantalum bypass without oscillation. |
Applications
| Digital Voltmeter (DVM) | High-Resolution Data Acquisition |
|---|---|
|
Use Scenario: Portable handheld DVM requiring 5½-digit resolution and battery-powered operation. IC Role / Device Role / Timing Role: Primary 5.000V reference for dual-slope ADC front-end, providing absolute scaling against which input voltage is measured. Use Value: ±0.02% initial accuracy and 7.0ppm/°C tempco ensure <±0.005% reading error across 0–40°C ambient without recalibration. |
Use Scenario: Industrial PLC analog input module digitizing 4–20mA sensor signals at 16-bit resolution. IC Role / Device Role / Timing Role: Reference source for SAR ADC sampling chain, directly driving ADC REF+ pin with minimal impedance. Use Value: ±15mA sourcing capability enables direct drive of ADC reference input and anti-alias filter without op-amp buffer. |
| ATE Equipment | Precision Current Source |
|
Use Scenario: Automated test system generating calibrated voltage stimuli for DUT characterization. IC Role / Device Role / Timing Role: Stable excitation reference for programmable voltage sources used in parametric testing of analog ICs. Use Value: 20ppm/1000h long-term stability ensures <±0.01% reference drift over 3-month production runs, reducing recalibration frequency. |
Use Scenario: 4–20mA loop transmitter requiring precise current setpoint generation. IC Role / Device Role / Timing Role: Voltage reference for op-amp-based Howland current source, defining exact IOUT = VREF/Rsense. Use Value: Low 3.0µVP-P noise prevents current ripple that would manifest as EMI in sensitive sensor interfaces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR4550BRZ | 5.000V, 3ppm/°C max, 1.75µVP-P noise, SOIC-8, higher cost | Better noise and tempco but limited to 10mA output; requires external buffer for 15mA loads | Select when ultra-low noise (<2µVP-P) is prioritized over output drive strength. |
| REF5050IDR | 5.000V, 3ppm/°C max, 4.5µVP-P noise, SOIC-8, lower quiescent current (950µA) | Lower power but only ±10mA drive; no NR pin or external trim capability | Select for battery-powered systems where 15mA sourcing is not required and board space is constrained. |
Compared with ADR4550BRZ and REF5050IDR, MAX6250BEPA+ uniquely combines industrial-temp 5V reference performance with full ±15mA drive, external trim, and NR-capacitor noise reduction-all in a through-hole DIP package suitable for prototyping and high-reliability legacy systems.
Availability
MAX6250BEPA+ is available at Aetrix Electronics and suitable for digital voltmeters, high-resolution data acquisition systems, ATE equipment, and precision current sources requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for MAX6250BEPA+ 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 sub-10ppm/°C stability, microvolt-level noise, and robust load drive are mandatory-especially in 16-bit+ data conversion and calibration-critical instruments.
FAQ
What is the maximum operating temperature range for MAX6250BEPA+?
The MAX6250BEPA+ is rated for operation from –40°C to +85°C. This extended industrial temperature range is confirmed in the Ordering Information table and Electrical Characteristics section, where all "E" grade parameters (including tempco, line/load regulation, and noise) are specified across this full span. The "E" suffix explicitly denotes the –40°C to +85°C grade.
Does MAX6250BEPA+ require an external capacitor on the NR pin?
No, the NR pin on MAX6250BEPA+ is optional: it may be left open for standard operation. A 1µF capacitor can be added between NR and GND to reduce wideband output noise, as verified in Figure 2 and Typical Operating Characteristics (TOC10–TOC12). Performance data shows measurable improvement only up to ~1µF; larger values yield diminishing returns.
Can MAX6250BEPA+ drive a 10kΩ load directly?
Yes. With a 5.000V output and ±15mA sourcing/sinking capability, MAX6250BEPA+ can directly drive a minimum 333Ω load (5V/15mA). A 10kΩ load draws only 0.5mA - well within specification - and introduces negligible error (<0.005% load regulation effect per datasheet's 7ppm/mA spec).
What is the purpose of the TRIM pin on MAX6250BEPA+?
The TRIM pin on MAX6250BEPA+ enables external adjustment of the output voltage by ±30mV (±0.6%), as stated in the Electrical Characteristics table. A 10kΩ potentiometer connected between OUT and GND-with its wiper to TRIM-allows system-level calibration to compensate for board-level errors, matching the reference precisely to downstream ADC full-scale requirements.
Is MAX6250BEPA+ RoHS-compliant?
Yes. The "+" suffix in MAX6250BEPA+ explicitly denotes a lead(Pb)-free and RoHS-compliant package, as confirmed in the General Description footnote and Ordering Information section. It uses a standard 8-pin plastic DIP package with RoHS-compliant terminations and molding compound.
MAX6250BEPA+ 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):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 15 mA
- Tolerance:
- ±0.1%
- Temperature Coefficient:
- 7ppm/°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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
MAX6250BEPA+ FAQ
1.How can I place an order for MAX6250BEPA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6250BEPA+ 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 MAX6250BEPA+ reliable?
The price and inventory of MAX6250BEPA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6250BEPA+ is usually 5 days.
3.What payment methods are accepted for MAX6250BEPA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6250BEPA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6250BEPA+?
MAX6250BEPA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6250BEPA+ 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 MAX6250BEPA+?
For technical support, including MAX6250BEPA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6250BEPA+ requirements.
6.How does Aetrix verify that MAX6250BEPA+ is sourced from the original manufacturer or authorized distributors?
All MAX6250BEPA+ 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 MAX6250BEPA+ meets industry standards.
7.What is the process for return or replacement of MAX6250BEPA+?
All MAX6250BEPA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6250BEPA+, 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 MAX6250BEPA+ part is unused and in its original packaging.
Return procedure for MAX6250BEPA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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