My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6241BEPA
- Part No.:
- MAX6241BEPA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX6241BEPA.pdf
- Description:
- IC VREF SERIES 0.1% 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,120
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6241BEPA from Maxim Integrated is a precision 4.096V buried-zener voltage reference with ±0.02% initial accuracy, 7.0ppm/°C max temperature coefficient (–40°C to +85°C), 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 MAX6241BEPA datasheet, MAX6241BEPA pinout, MAX6241BEPA application, or MAX6241BEPA equivalent, key selection criteria include guaranteed ±15mA sink/source capability, optional external trim (±40mV range), noise-reduction capacitor support (NR pin), and stability across 0–100µF capacitive loads without oscillation.
Technical Context
The MAX6241BEPA uses buried-zener core technology with on-chip temperature compensation to achieve laboratory-grade stability without heater power. Its low-noise architecture minimizes 1/f and broadband contributions, enabling sub-16-bit system accuracy.
It features dual-regulation design: line regulation ≤7ppm/V (10–36V input) and load regulation ≤7ppm/mA (sourcing), with turn-on settling time of 8µs to ±0.01%. The NR pin accepts a 1µF capacitor to reduce wideband noise without degrading transient response.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096V ±0.004V at +25°C - tight tolerance enables direct interface with 12-bit and 16-bit SAR/ΣΔ ADCs without gain calibration. |
| Tempco (Max) | 7.0ppm/°C over –40°C to +85°C - ensures <±0.35mV drift across full industrial range, critical for portable metrology tools. |
| Noise (0.1–10Hz) | 2.4µVP-P - low enough to avoid limiting ENOB in 16-bit data converters operating at DC or low frequencies. |
| Load Current Range | ±15mA - supports driving multiple op-amp references or buffered DAC outputs without external amplification. |
| Line Regulation | ≤7ppm/V (10–36V) - maintains output stability despite unregulated supply ripple common in ATE power rails. |
| Long-Term Stability | 20ppm/1000h - predictable aging behavior allows calibration intervals up to 1 year in field-deployed instrumentation. |
| Supply Current | 2.9mA typical - enables low-power operation in battery-backed precision sensors and handheld DVMs. |
Pinout & Package
MAX6241BEPA 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) | Unused pins - no external connection; floating or grounded both violate recommended layout per datasheet. |
| 2 | IN | Positive supply input (8–36V); requires local 0.1µF bypass to GND for optimal ripple rejection. |
| 3 | NR | Noise reduction node - connect 1µF capacitor to GND to reduce wideband noise; open-circuit if unused. |
| 4 | GND | Analog ground reference - star-point connection required to minimize ground-loop errors in precision systems. |
| 5 | TRIM | External voltage adjust input - accepts 0–VOUT potential via 10kΩ potentiometer for ±40mV fine-tuning. |
| 6 | OUT | Precision 4.096V reference output - stable into 0–100µF capacitive loads; drives resistive loads down to 270Ω (±15mA). |
Key Features
| Feature | Design Value |
|---|---|
| Buried-zener core | Delivers lowest 1/f noise among precision references in its class - essential for DC-accurate sensor signal chains. |
| Optional noise reduction | 1µF capacitor on NR pin reduces integrated noise by >30% in 10Hz–1kHz band without affecting settling time. |
| External trim capability | ±40mV adjustment range (±0.97%) preserves temperature coefficient integrity - enables end-of-line calibration. |
| Capacitive-load immunity | Stable with 0–100µF output capacitance - eliminates need for isolation resistors in noisy environments. |
| High PSRR | ≥85dB ripple rejection at 1kHz (CNR=1µF) - suppresses switching regulator noise coupling into reference path. |
Applications
| High-Resolution Data Acquisition | Digital Voltmeters (DVMs) |
|---|---|
|
Use Scenario: 16-bit SAR ADC sampling thermocouple or strain-gauge signals in automated test equipment. IC Role / Device Role / Timing Role: Primary voltage reference providing stable 4.096V full-scale for ADC conversion and offset calibration. Use Value: 7.0ppm/°C tempco and 2.4µVP-P noise ensure <±0.5LSB error across temperature and time, meeting Class I DMM requirements. |
Use Scenario: Portable handheld DVM measuring mV-level signals with autoranging and auto-zero functions. IC Role / Device Role / Timing Role: Reference source for integrator and comparator stages in dual-slope ADC architecture. Use Value: ±15mA drive strength powers internal analog switches and buffers; 20ppm/1000h stability extends recalibration interval to 12 months. |
| Industrial Process Controllers | ATE Equipment Calibration Modules |
|
Use Scenario: PLC analog I/O module converting 4–20mA loop signals to digital with HART communication. IC Role / Device Role / Timing Role: Precision reference for current-sense amplifier gain setting and DAC output scaling. Use Value: 8–36V input range accommodates wide industrial supply rails; TRIM pin enables field-trimmed 4mA zero-point alignment. |
Use Scenario: Rack-mounted ATE card generating calibrated voltage stimuli for DUT parametric testing. IC Role / Device Role / Timing Role: Master reference for programmable voltage sources and multi-channel digitizers. Use Value: Low 8µs turn-on settling enables fast test sequencing; NR pin integration reduces noise floor below 3µV RMS for sub-ppm measurement resolution. |
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, SO-8 package, 3.6mA supply current | Lower tempco and noise but limited to ±10mA output; requires external buffer for high-current loads | Select when ultra-low drift (<±0.15mV over –40°C to +85°C) and minimal noise dominate over drive capability |
| ADR444BRZ | 4.096V, 3ppm/°C max, 1.8µVP-P noise, SO-8, ±10mA output, 3.5mA supply current | Higher cost, tighter initial accuracy (±0.012%), but lower output current than MAX6241BEPA | Prefer for metrology-grade instruments where long-term stability (15ppm/1000h) outweighs sourcing headroom |
Compared with REF5040IDR and ADR444BRZ, the MAX6241BEPA trades slightly higher tempco and noise for significantly greater ±15mA output drive and DIP package compatibility with legacy test fixtures - making it optimal for cost-sensitive, high-current industrial reference designs.
Availability
MAX6241BEPA is available at Aetrix Electronics and suitable for high-resolution analog-to-digital conversion, digital voltmeter front-ends, and industrial process controller reference circuits requiring stable component supply across extended temperature ranges.
Supply support for MAX6241BEPA 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) is a U.S.-based semiconductor company specializing in high-performance analog and mixed-signal ICs for precision, power, and interface applications.
The MAX62xx family was engineered specifically for metrology-grade voltage references in test and measurement, industrial automation, and high-end data acquisition-prioritizing low noise, low drift, and robust load regulation over cost or integration density.
FAQ
What is the maximum input voltage rating for MAX6241BEPA?
The MAX6241BEPA has an absolute maximum input voltage of +40V on the IN pin, but its specified operating range is 8V to 36V. Operation above 36V risks exceeding safe power dissipation limits in the 8-pin DIP package, especially at elevated ambient temperatures. For reliable long-term performance, maintain VIN ≤ 36V with adequate PCB copper pour for thermal dissipation.
Can MAX6241BEPA drive a 500Ω load continuously?
Yes - the MAX6241BEPA guarantees ±15mA output current, supporting continuous sourcing or sinking into loads as low as 273Ω (4.096V ÷ 15mA) at full accuracy. A 500Ω load draws only 8.2mA, well within specification and without requiring external buffering or derating.
Does the TRIM pin affect temperature coefficient when adjusted?
No - the MAX6241BEPA datasheet explicitly states that external trimming via the TRIM pin does not degrade temperature coefficient performance. The ±40mV adjustment range (±0.97%) is implemented using a ratiometric scheme that preserves the underlying buried-zener's thermal stability, maintaining the rated 7.0ppm/°C max over –40°C to +85°C.
Is a capacitor required on the NR pin for basic operation of MAX6241BEPA?
No - the NR pin is optional. Leaving it open (unconnected) results in standard 2.4µVP-P (0.1–10Hz) noise performance. A 1µF capacitor to GND reduces wideband noise by ~30% but adds no phase lag or stability risk. Larger values provide diminishing returns and are not recommended per Maxim's Typical Operating Characteristics.
What is the long-term stability specification for MAX6241BEPA?
The MAX6241BEPA exhibits 20ppm/1000h long-term stability at +25°C, measured under controlled burn-in conditions. This value reflects typical parametric drift during early-life operation and serves as a baseline for predicting calibration intervals in field-deployed equipment - e.g., a 2-year deployment accumulates <175ppm drift (≈±0.72mV at 4.096V), supporting annual recalibration schedules.
MAX6241BEPA 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):
- 4.096V
- Voltage - Output (Max):
- -
- Current - Output:
- 15 mA
- Tolerance:
- ±0.1%
- Temperature Coefficient:
- 7ppm/°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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
MAX6241BEPA FAQ
1.How can I place an order for MAX6241BEPA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6241BEPA 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 MAX6241BEPA reliable?
The price and inventory of MAX6241BEPA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6241BEPA is usually 5 days.
3.What payment methods are accepted for MAX6241BEPA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6241BEPA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6241BEPA?
MAX6241BEPA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6241BEPA 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 MAX6241BEPA?
For technical support, including MAX6241BEPA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6241BEPA requirements.
6.How does Aetrix verify that MAX6241BEPA is sourced from the original manufacturer or authorized distributors?
All MAX6241BEPA 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 MAX6241BEPA meets industry standards.
7.What is the process for return or replacement of MAX6241BEPA?
All MAX6241BEPA units undergo pre-shipment inspection (PSI). If there is an issue with MAX6241BEPA, 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 MAX6241BEPA part is unused and in its original packaging.
Return procedure for MAX6241BEPA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6241BEPA 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…
