My Inquiry
My Account
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:2,145
Please send an inquiry. Send us your inquiry, and we will respond immediately.
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
The MAX6250BEPA uses buried-zener core technology with low-power curvature-compensation circuitry to achieve near-zero thermal hysteresis (20ppm) and flat temperature drift across its full –40°C to +85°C industrial range. Its internal architecture isolates reference core from supply variations via high-PSRR regulation.
It delivers stable 5.000V output with ≤5ppm/V line regulation (10V–36V input), ≤7ppm/mA load regulation (0–15mA sourcing), and <10µs turn-on settling to ±0.01%. The TRIM and NR pins enable system-level calibration and wideband noise filtering without degrading long-term stability (20ppm/1000h).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.000V ±0.005V at +25°C - enables direct interface with 16-bit SAR ADCs requiring ≤0.5LSB reference error. |
| Tempco (Max) | 7.0ppm/°C (–40°C to +85°C) - ensures ≤±0.35mV total drift over full industrial range. |
| Initial Accuracy | ±0.02% (±1.0mV) - eliminates need for factory calibration in portable test equipment. |
| Output Noise | 3.0µVP-P (0.1Hz–10Hz), 2.5–5.0µVRMS (10Hz–1kHz) - preserves SNR in 24-bit delta-sigma converters. |
| Load Current | ±15mA sourcing/sinking - supports driving multiple op-amp buffers or DAC reference inputs simultaneously. |
| Long-Term Stability | 20ppm/1000h - guarantees ≤±0.1mV drift per 1000 hours in deployed ATE systems. |
| Supply Current | 2.0–3.3mA - enables low-power operation in battery-backed precision sensors. |
Pinout & Package
MAX6250BEPA is housed in an 8-pin plastic DIP package (0.300" width), RoHS-compliant, with through-hole mounting and industry-standard footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 8 | I.C. (Internally Connected) | No external connection required; electrically isolated from functional circuitry. |
| 2 | IN | Positive supply input (8V–36V); accepts unregulated rails common in industrial power supplies. |
| 3 | NR | Noise reduction node - accepts 1µF capacitor to reduce wideband output noise by >20dB. |
| 4 | GND | Analog ground reference - must be star-connected to minimize ground bounce in mixed-signal systems. |
| 5 | TRIM | External voltage adjust input - enables ±30mV (±0.6%) fine-tuning via 10kΩ potentiometer without affecting tempco. |
| 6 | OUT | Stable 5.000V reference output - capable of driving 0–100µF capacitive loads without oscillation. |
Key Features
| Feature | Design Value |
|---|---|
| Buried-zener core | Delivers lowest 1/f noise (3.0µVP-P) among 5V references in DIP package, critical for sub-ppm measurement systems. |
| Trim-adjustable output | ±30mV adjustment range allows field calibration to compensate for PCB trace resistance and layout tolerances. |
| Noise-reduction pin (NR) | Enables >20dB broadband noise suppression without altering reference core dynamics or stability margin. |
| Capacitive-load immunity | Stable with 0–100µF output capacitance - eliminates need for isolation resistors in multi-stage filter designs. |
| High PSRR & transient response | 85dB ripple rejection at 1kHz and <10µs settling time ensure clean reference during digital switching events. |
Applications
| Digital Voltmeter (DVM) | Automated Test Equipment (ATE) |
|---|---|
Use Scenario: High-accuracy 7½-digit bench DVM requiring <1ppm total uncertainty over 24h. IC Role / Device Role / Timing Role: Primary 5.000V reference for dual-slope integrator and auto-zero amplifier stages. Use Value: 7.0ppm/°C tempco and 20ppm/1000h stability ensure calibration validity between annual metrology lab audits. | Use Scenario: Modular PXI chassis with 16-channel 24-bit DAQ cards performing concurrent voltage/current measurements. IC Role / Device Role / Timing Role: Shared reference source for all ADCs and DACs across backplane, minimizing inter-channel gain mismatch. Use Value: ±15mA drive strength and capacitive-load immunity allow single MAX6250BEPA to serve 8+ channels without buffering. |
| Industrial Process Controller | Precision Current Source |
Use Scenario: SIL-2 certified PLC analog I/O module converting 4–20mA loop signals with ±0.01% FSR accuracy. IC Role / Device Role / Timing Role: Reference for 16-bit DAC generating precise loop current setpoints and for ADC measuring feedback voltage. Use Value: –40°C to +85°C rating and 7.0ppm/°C tempco maintain accuracy across harsh factory environments without active oven control. | Use Scenario: Calibrated 100mA programmable current source used in semiconductor parametric testers. IC Role / Device Role / Timing Role: Voltage reference for op-amp-based Howland current pump with Kelvin sensing. Use Value: Low 3.0µVP-P noise prevents current ripple from corrupting sub-nA leakage 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 |
|---|---|---|---|
| ADR4550BRZ | 5.000V, 3ppm/°C max, 1.75µVP-P noise, SOIC-8, 4.5–18V supply | Lower noise and tempco but limited to 10mA output; requires external buffer for >10mA loads | Select when ultra-low noise dominates over drive strength and board space permits SOIC footprint. |
| REF5050ID | 5.000V, 3ppm/°C max, 2.8µVP-P noise, SOIC-8, 7–18V supply, integrated trim resistor | Higher quiescent current (4.2mA), no NR pin, fixed 5V only (no 2.5V/4.096V variants) | Select when simplified layout (no external trim pot) and tighter tempco outweigh need for noise-reduction flexibility. |
Compared with ADR4550BRZ and REF5050ID, the MAX6250BEPA offers superior ±15mA drive capability and dedicated NR pin for system-level noise optimization - making it preferred for multi-channel data acquisition where reference loading and board-level EMI are dominant concerns.
Availability
MAX6250BEPA is available at Aetrix Electronics and suitable for high-resolution analog-to-digital conversion, precision current sourcing, and automated test equipment requiring stable component supply across extended temperature ranges.
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 semiconductors for precision, power, and interface applications.
The MAX62xx family targets metrology-grade voltage references - engineered specifically for 16–24-bit data converters, calibration standards, and industrial control systems demanding laboratory-level stability in rugged environments.
FAQ
What is the maximum operating temperature range for the MAX6250BEPA?
The MAX6250BEPA is rated for continuous operation from –40°C to +85°C, with electrical specifications fully guaranteed across this industrial temperature range. Its 7.0ppm/°C maximum temperature coefficient and 20ppm/1000h long-term stability are validated at both extremes, making MAX6250BEPA suitable for deployment in factory-floor controllers, outdoor instrumentation, and automotive test rigs without derating.
Can the MAX6250BEPA drive a 10µF output capacitor without instability?
Yes - the MAX6250BEPA is explicitly characterized and guaranteed stable with output capacitance from 0µF up to 100µF across its full load and temperature range. This eliminates the need for series isolation resistors or ferrite beads in applications like multi-stage anti-aliasing filters or buffered reference distribution networks, simplifying layout and improving transient response.
How much output voltage adjustment is possible using the TRIM pin on the MAX6250BEPA?
The TRIM pin on MAX6250BEPA supports ±30mV (±0.6%) output adjustment using a 10kΩ potentiometer connected between OUT and GND, with wiper to TRIM. This range is confirmed in the Electrical Characteristics table for MAX6250B-grade devices and does not degrade temperature coefficient or long-term stability when implemented per Figure 1 in the datasheet.
Does the MAX6250BEPA require an input bypass capacitor on the IN pin?
While not strictly required, a 1µF ceramic capacitor from IN to GND is recommended to suppress high-frequency supply noise that can couple into the reference output - especially when sharing rails with digital ICs or switching regulators. The MAX6250BEPA's PSRR drops above 10kHz, so local bypassing improves measured 0.1Hz–10Hz noise by up to 40% in noisy system environments.
Is the MAX6250BEPA pin-compatible with other members of the MAX6225/MAX6241/MAX6250 family?
Yes - all MAX6225, MAX6241, and MAX6250 variants share identical 8-pin DIP/SO pinouts and terminal functions (IN, NR, GND, TRIM, OUT). The MAX6250BEPA can replace MAX6225BEPA or MAX6241BEPA on the same PCB, provided the system design accommodates its 5.000V output instead of 2.500V or 4.096V - no layout changes are needed.
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.
MAX6250BEPA Tags
-
TL431AIDBZR
Texas Instruments
-
TL431BQDBZR
Texas Instruments
-
AN431AN-ATRG1
Diodes Incorporated
-
LM4040CYM3-2.5-TR
Microchip Technology
-
LM4040CYM3-4.1-TR
Microchip Technology
-
LM4040EIM3-2.5/NOPB
Texas Instruments
-
AZ431LBNTR-G1
Diodes Incorporated
-
LM4040D20IDBZR
Texas Instruments
-
LM4041DIM3-ADJ/NOPB
Texas Instruments
-
LM4040DIM3X-2.5/NOPB
Texas Instruments
-
LM4040DIM3-2.5/NOPB
Texas Instruments
-
AZ431LANTR-G1
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
