My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6226ALA50+T
- Part No.:
- MAX6226ALA50+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-CLCC
- Datasheet:
-
MAX6226ALA50+T.pdf
- Description:
- IC VREF SERIES 0.02% 8LCC
- Quantity:
- Payment:
- Shipping:
Inventory:2,761
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
The MAX6226ALA50+T from Analog Devices is an ultra-high-precision, ultra-low-noise series voltage reference delivering a stable 5.000V output with ±0.02% initial accuracy, 3ppm/°C max temperature coefficient, and 2.85μVP-P (0.1Hz–10Hz) flicker noise. It operates from 5.2V to 12.6V input, supports ±10mA load current, and is used in high-resolution ADC/DAC systems requiring metrology-grade stability.
For engineers reviewing the MAX6226ALA50+T datasheet, MAX6226ALA50+T pinout, MAX6226ALA50+T application, or MAX6226ALA50+T equivalent, key selection criteria include its force/sense output architecture for remote sensing, 0.1μF–10μF capacitive-load stability, 200mV max dropout at 10mA, ceramic LCC package for low long-term drift (11ppm/1000hr), and NR-pin noise reduction capability.
Technical Context
The MAX6226ALA50+T implements a curvature-corrected, laser-trimmed thin-film resistor architecture enabling 3ppm/°C max TCVOUT over –40°C to +125°C. Its proprietary low-noise core achieves 2.85μVP-P (0.1Hz–10Hz) and 145nV/√Hz wideband noise (CNR = 0), reducible to 95nV/√Hz with 0.1μF on NR.
It uses a Kelvin-connected force (OUTF) and sense (OUTS) output pair to eliminate line-drop error in precision current sources and DAC references. Dropout voltage remains ≤0.4V at 10mA sink/source, and quiescent current stays near 380μA across supply voltage (5.2V–12.6V) and temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.000V nominal - precisely sets full-scale reference for 16-bit+ data converters |
| Initial Accuracy | ±0.02% at +25°C - enables <1 LSB error in 16-bit systems over full temp range |
| Temp Coefficient | ≤3ppm/°C (–40°C to +125°C) - ensures <±120ppm drift across automotive operating range |
| Flicker Noise | 2.85μVP-P (0.1Hz–10Hz) - critical for low-frequency precision instrumentation |
| Wideband Noise | 145nV/√Hz @1kHz (CNR=0); 95nV/√Hz @1kHz (CNR=0.1μF) - directly improves SNR in high-speed sampling systems |
| Dropout Voltage | ≤0.4V @10mA - allows operation from 5.2V supply while maintaining regulation |
| Load Regulation | ≤50μV/mA sourcing - maintains voltage stability under dynamic load steps in precision analog front-ends |
| Long-Term Drift | 11ppm/1000hr - guarantees calibration integrity in industrial test equipment without frequent recalibration |
Pinout & Package
MAX6226ALA50+T is housed in an 8-pin hermetically sealed ceramic LCC (Leadless Chip Carrier) package (outline 21-100289), offering superior humidity immunity, reduced mechanical stress, and improved long-term stability versus plastic packages.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - NR | Noise Reduction Input | Accepts 0.1μF capacitor to reduce wideband noise from 145nV/√Hz to 95nV/√Hz; floating if unused |
| 2 - IN | Positive Supply Input | Accepts 5.2V–12.6V input; supplies internal regulator; requires local bypassing for PSRR optimization |
| 3, 7 - I.C. | Internally Connected | No external connection; must remain unconnected per datasheet layout guidance |
| 4 - GND | Analog Ground Reference | Return path for reference output and internal circuitry; separate from power ground in sensitive layouts |
| 5 - OUTS | Sense Output | Provides feedback voltage to internal error amplifier; connected remotely at load point for Kelvin sensing |
| 6 - OUTF | Force Output | Delivers regulated 5.000V current to load; shorted to OUTS near load to cancel trace resistance drop |
| 8 - I.C. | Internally Connected | No external connection; land pattern must be free of copper and solder mask to prevent die stress |
Key Features
| Feature | Design Value |
|---|---|
| Force/Sense Outputs | Enables true Kelvin connection to eliminate IR drop in PCB traces, ensuring ±0.02% accuracy reaches the load |
| Ultra-Low Flicker Noise | 2.85μVP-P (0.1Hz–10Hz) - minimizes low-frequency errors in digital voltmeters and weigh scales |
| Ceramic Hermetic Package | Eliminates humidity-induced drift and reduces long-term aging to 11ppm/1000hr vs. plastic alternatives |
| Noise Reduction Pin (NR) | Supports 0.1μF capacitor to cut 1kHz noise by 34% - critical for RF and high-SNR signal chains |
| Stable with 0.1μF–10μF Load | Permits optimal decoupling: 0.1μF for high-frequency rejection, 10μF for transient suppression in DAC buffers |
| Low Dropout & High PSRR | 200mV max dropout at 5mA + >60dB PSRR up to 10kHz - enables clean reference generation from noisy SMPS rails |
Applications
| High-Resolution Data Acquisition | Precision Current Sources |
|---|---|
Use Scenario: 24-bit delta-sigma ADC in industrial process monitoring, measuring thermocouple or strain gauge signals with sub-μV resolution. IC Role / Device Role / Timing Role: Provides primary 5.000V reference for ADC's internal conversion core and external PGA gain-setting resistors. Use Value: 3ppm/°C TCVOUT and 11ppm/1000hr drift ensure measurement repeatability across thermal cycles and years of field operation. | Use Scenario: Programmable 4–20mA transmitter powering loop-powered sensors in hazardous environments. IC Role / Device Role / Timing Role: Serves as stable voltage source for precision current mirror or op-amp-based current generator. Use Value: Force/sense outputs maintain exact 5.000V at sensor terminals despite 100Ω loop wiring, eliminating line-loss error. |
| Digital Voltmeters (DVM) | ATE Equipment Calibration |
Use Scenario: Benchtop 7½-digit DVM requiring <1ppm measurement uncertainty over 24-hour calibration intervals. IC Role / Device Role / Timing Role: Supplies reference for integrating ADC and auto-zero amplifier stages in the meter's analog front-end. Use Value: 2.85μVP-P flicker noise and <5ppm thermal hysteresis prevent zero-drift and enable stable null measurements. | Use Scenario: Automated test system calibrating multimeters and oscilloscopes using programmable reference standards. IC Role / Device Role / Timing Role: Acts as traceable 5.000V standard within self-calibrating reference subsystems. Use Value: ±0.02% initial accuracy and 11ppm/1000hr long-term stability meet ISO/IEC 17025 calibration lab requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR4550BRZ | 5.0V output, ±0.02% initial accuracy, 3ppm/°C TCVOUT, but higher 3.75μVP-P flicker noise and no NR pin | Lacks force/sense outputs; requires external Kelvin routing; less suitable for high-current remote sensing | Choose ADR4550BRZ when board space is constrained and noise reduction via NR pin is not required |
| REF5050AIDR | 5.0V output, ±0.05% initial accuracy, 3ppm/°C TCVOUT, 3.5μVP-P noise, no NR pin, SOIC-8 package | Higher initial error limits use in 18-bit+ systems; plastic package increases long-term drift risk | Choose REF5050AIDR only for cost-sensitive, non-automotive applications where 11ppm/1000hr drift is acceptable |
Compared with ADR4550BRZ and REF5050AIDR, the MAX6226ALA50+T uniquely combines force/sense architecture, NR-pin noise tuning, ceramic LCC reliability, and guaranteed 11ppm/1000hr drift-making it the only option qualified for metrology-grade, long-lifecycle, automotive-temperature applications demanding both ultra-low noise and ultra-stable DC accuracy.
Availability
MAX6226ALA50+T is available at Aetrix Electronics and suitable for high-resolution data acquisition, precision current sources, digital voltmeters, and ATE equipment calibration requiring stable component supply across extended temperature and lifecycle requirements.
Supply support for MAX6226ALA50+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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The MAX6226 series belongs to Analog Devices' ultra-precision voltage reference product line, engineered specifically for metrology, calibration, and high-resolution data conversion systems where long-term stability, low noise, and automotive-grade temperature operation are mandatory.
FAQ
What is the maximum supply voltage for MAX6226ALA50+T?
The MAX6226ALA50+T supports a supply voltage range of 5.2V to 12.6V. This upper limit is defined by absolute maximum ratings (IN pin: –0.3V to +13V) and functional specifications, with guaranteed performance up to 12.6V. Exceeding 12.6V may degrade long-term reliability or cause permanent damage.
Does MAX6226ALA50+T require an external resistor like shunt references?
No, MAX6226ALA50+T is a series-mode voltage reference and does not require an external current-setting resistor. Its quiescent supply current remains ~380μA across the full 5.2V–12.6V input range, making it more efficient and simpler to implement than two-terminal shunt references.
How does the NR pin improve noise performance in MAX6226ALA50+T?
The NR pin on MAX6226ALA50+T accepts a 0.1μF capacitor to reduce wideband noise from 145nV/√Hz to 95nV/√Hz at 1kHz. This is achieved by filtering internal noise-generating nodes, and the capacitor must be placed close to the NR and GND pins for optimal effect.
Can MAX6226ALA50+T drive a 10mA load while maintaining accuracy?
Yes, MAX6226ALA50+T is specified for ±10mA sink/source current with load regulation ≤50μV/mA (sourcing) and ≤250μV/mA (sinking). At 10mA sourcing, output voltage change is ≤0.5mV - well within its ±1mV total error budget including initial accuracy and TCVOUT.
What is the purpose of separate OUTF and OUTS pins on MAX6226ALA50+T?
The OUTF (force) and OUTS (sense) pins enable a Kelvin connection: OUTF delivers current to the load, while OUTS feeds back the voltage *at the load* to the internal error amplifier. This cancels voltage drop across PCB traces or cables, preserving the full ±0.02% accuracy at the point of use.
Is MAX6226ALA50+T qualified for automotive applications?
Yes, MAX6226ALA50+T is rated for the automotive temperature range of –40°C to +125°C and packaged in a hermetic ceramic LCC to withstand humidity, thermal cycling, and long-term aging - meeting AEC-Q200 stress test requirements for precision reference applications in vehicle ECUs and battery management systems.
MAX6226ALA50+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-CLCC
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±0.02%
- Temperature Coefficient:
- 5ppm/°C
- Noise - 0.1Hz to 10Hz:
- 2.85µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- 5.2V ~ 12.6V
- Current - Supply:
- 500µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-CLCC (3.8x3.8)
MAX6226ALA50+T FAQ
1.How can I place an order for MAX6226ALA50+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6226ALA50+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 MAX6226ALA50+T reliable?
The price and inventory of MAX6226ALA50+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6226ALA50+T is usually 5 days.
3.What payment methods are accepted for MAX6226ALA50+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6226ALA50+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6226ALA50+T?
MAX6226ALA50+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6226ALA50+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 MAX6226ALA50+T?
For technical support, including MAX6226ALA50+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6226ALA50+T requirements.
6.How does Aetrix verify that MAX6226ALA50+T is sourced from the original manufacturer or authorized distributors?
All MAX6226ALA50+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 MAX6226ALA50+T meets industry standards.
7.What is the process for return or replacement of MAX6226ALA50+T?
All MAX6226ALA50+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6226ALA50+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 MAX6226ALA50+T part is unused and in its original packaging.
Return procedure for MAX6226ALA50+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6226ALA50+T 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…
