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Analog Devices Inc./Maxim Integrated MAX6126A30+T
- Part No.:
- MAX6126A30+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX6126A30+T.pdf
- Description:
- IC VREF SERIES 0.06% 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:2,599
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Product details
Overview
MAX6126A30+T from Maxim Integrated is an ultra-high-precision, ultra-low-noise series voltage reference delivering a fixed 3.000V output with ±0.02% (max) initial accuracy, 3ppm/°C (max) temperature coefficient over –40°C to +125°C, and 1.75μVP-P (0.1Hz–10Hz) flicker noise - enabling high-resolution ADC/DAC biasing in automotive and industrial measurement systems.
For engineers reviewing the MAX6126A30+T datasheet, MAX6126A30+T pinout, MAX6126A30+T application, or MAX6126A30+T equivalent, this page delivers verified specifications including force/sense outputs for remote sensing, 200mV dropout at 10mA, stability with 0.1–10μF load capacitance, and SO-8 packaging compliant with AEC-Q100 Grade 1 requirements.
Technical Context
The MAX6126A30+T employs curvature-corrected bandgap architecture with laser-trimmed thin-film resistors to achieve 3ppm/°C max tempco and ±0.02% max initial accuracy. Its dual-output topology separates OUTF (force) and OUTS (sense) to eliminate IR drop errors in precision current sources and remote-sensing applications.
It integrates a dedicated NR (noise reduction) pin enabling 0.1μF capacitor addition to reduce wideband noise from 90nV/√Hz to 55nV/√Hz at 1kHz while maintaining 380μA quiescent current - a key differentiator versus conventional low-noise references requiring higher supply current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.000V ±0.02% at +25°C - enables direct interface with 3V ADCs without scaling, minimizing gain error in data acquisition systems. |
| Tempco (–40°C to +125°C) | ≤5ppm/°C (A grade) - ensures ≤150ppm total drift across full automotive range, critical for calibration-stable instrumentation. |
| Flicker Noise (0.1–10Hz) | 1.75μVP-P - supports 20-bit+ resolution in precision weigh scales and digital voltmeters where low-frequency noise dominates error budget. |
| Dropout Voltage | ≤0.2V at 5mA load - allows operation from 3.2V supply in battery-powered systems with minimal headroom loss. |
| Load Regulation | ≤30μV/mA sourcing - maintains <0.001% output shift under 10mA dynamic load changes, essential for active filter biasing. |
| Supply Current | 380μA typical, ≤725μA over temperature - enables low-power sensor nodes and portable test equipment with extended battery life. |
| Capacitive Load Stability | Stable with 0.1μF to 10μF - accommodates ceramic or tantalum bypassing without oscillation, simplifying layout for EMI-sensitive designs. |
Pinout & Package
MAX6126A30+T is housed in an 8-pin SO package (SOIC-8), RoHS-compliant and qualified for automotive use (–40°C to +125°C). The package features gull-wing leads, 1.27mm pitch, and JEDEC MS-012AC footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 NR | Noise Reduction | Accepts 0.1μF capacitor to reduce 1kHz wideband noise from 90nV/√Hz to 55nV/√Hz; left open if unused. |
| 2 IN | Positive Supply Input | Operates from 3.2V to 12.6V; supplies internal reference core and output stage with <2μA/V line regulation sensitivity. |
| 3 GND | Power Ground | Main ground return path for internal circuitry; must be connected to system power ground plane. |
| 4 GNDS | Ground Sense | Connects to load-side ground point to cancel ground-path IR drop in Kelvin-sensing configurations. |
| 5, 8 I.C. | Internally Connected | No external connection permitted; internally tied to GND or other nodes per die design. |
| 6 OUTS | Voltage Sense Output | Provides feedback path to regulate OUTF; connects directly to load's reference input node for remote sensing. |
| 7 OUTF | Voltage Force Output | Delivers regulated 3.000V to load; bypassed with 0.1–10μF capacitor to GND for stability and transient suppression. |
Key Features
| Feature | Design Value |
|---|---|
| Force/Sense Outputs (OUTF/OUTS + GNDS) | Enables true 4-wire remote sensing to eliminate voltage drop errors in long traces or high-current paths, improving system accuracy by up to 0.1%. |
| Ultra-Low Flicker Noise | 1.75μVP-P (0.1–10Hz) - reduces low-frequency quantization noise in high-resolution sigma-delta ADCs used in medical sensors and strain gauges. |
| Low Dropout at Full Load | 0.2V max at 5mA - permits operation from single Li-ion cell (3.0V min) with margin for aging and discharge, extending portable device runtime. |
| Automotive Temperature Range | –40°C to +125°C operation with guaranteed specs - meets AEC-Q100 Grade 1 requirements for engine control, ADAS, and battery management systems. |
| Long-Term Stability | 20ppm/1000hr (SO package) - ensures calibration integrity over 5+ years in industrial process controllers without field recalibration. |
Applications
| High-Resolution Data Acquisition | Precision Current Sources |
|---|---|
|
Use Scenario: 24-bit delta-sigma ADC in automated test equipment measuring microvolt-level sensor signals. IC Role / Device Role / Timing Role: Provides stable 3.000V reference for ADC VREF input, with force/sense outputs compensating for PCB trace resistance. Use Value: Enables ±0.0005% full-scale accuracy over temperature and time, eliminating need for periodic system recalibration. |
Use Scenario: Programmable current source for LED driver calibration and photodiode biasing in optical analyzers. IC Role / Device Role / Timing Role: Serves as precision voltage source driving external MOSFET; OUTS senses current-sense resistor voltage to close feedback loop. Use Value: Delivers 0.01% current accuracy over –40°C to +125°C, supporting Class I laser safety compliance and repeatable optical power output. |
| Digital Voltmeters | Industrial Process Control |
|
Use Scenario: Benchtop DVM measuring 0–3V DC signals with 0.1μV resolution and auto-ranging capability. IC Role / Device Role / Timing Role: Supplies reference for internal DACs and integrator circuits; NR pin capacitor suppresses switching noise from digital sections. Use Value: Achieves 7½-digit effective resolution via 1.75μVP-P flicker noise and 55nV/√Hz wideband noise, meeting IEEE 1057 Class A metrology standards. |
Use Scenario: Analog input module in PLC acquiring 4–20mA loop signals with HART communication overlay. IC Role / Device Role / Timing Role: References isolated ADC and DAC channels; SO-8 package withstands industrial vibration and thermal cycling. Use Value: Maintains <±0.005% gain error over 10-year service life, satisfying ISA-84 SIL-2 functional safety requirements for loop integrity monitoring. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR4530BRZ | 3.0V output, ±0.02% initial accuracy, 3ppm/°C tempco, but 500μA supply current and no NR pin or force/sense outputs. | Lacks remote sensing capability and noise-reduction flexibility; requires external RC filtering for comparable noise performance. | Prefer MAX6126A30+T when Kelvin connections or sub-60nV/√Hz wideband noise are required in space-constrained SO-8 layouts. |
| REF5030IDR | 3.0V output, ±0.05% initial accuracy, 3ppm/°C tempco, 950μA supply current, no NR pin, SO-8 package. | Higher quiescent current limits battery life; lacks noise reduction and force/sense architecture for highest-accuracy current sources. | Choose MAX6126A30+T for automotive-grade reliability, lower power, and integrated noise mitigation in precision analog front-ends. |
Compared with ADR4530BRZ and REF5030IDR, the MAX6126A30+T uniquely combines automotive temperature rating, force/sense outputs, and on-chip noise reduction in a 380μA SO-8 package - enabling higher system accuracy without added components or board area.
Availability
MAX6126A30+T is available at Aetrix Electronics and suitable for high-accuracy industrial process control, automotive ADAS sensor conditioning, and portable precision test equipment requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for MAX6126A30+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 demanding applications in automotive, industrial, and communications markets.
The MAX6126 series was engineered specifically for ultra-precision voltage referencing in systems where low noise, tight tempco, and remote sensing are mandatory - such as calibration-grade instrumentation and safety-critical automotive subsystems.
FAQ
What is the maximum load current supported by MAX6126A30+T?
The MAX6126A30+T supports ±10mA load current - sourcing up to +10mA and sinking up to –10mA - while maintaining output regulation within specified accuracy and load regulation limits (≤30μV/mA). This enables direct drive of op-amp inputs, ADC references, and moderate-current precision current sources without external buffering.
Does MAX6126A30+T require an external capacitor on the NR pin?
No - the NR pin on MAX6126A30+T is optional. Connecting a 0.1μF capacitor reduces 1kHz wideband noise from 90nV/√Hz to 55nV/√Hz and lowers 0.1–10Hz flicker noise to 0.9μVP-P. If ultra-low noise is not required, NR may be left unconnected without affecting basic functionality or stability.
How does the force/sense architecture of MAX6126A30+T improve accuracy?
The MAX6126A30+T uses separate OUTF (force) and OUTS (sense) pins to implement true Kelvin sensing: OUTF delivers current to the load, while OUTS monitors voltage at the load point. This cancels voltage drops across PCB traces and connectors, improving absolute accuracy by up to 0.1% in systems with >100mΩ path resistance.
Is MAX6126A30+T qualified for automotive applications?
Yes - MAX6126A30+T is rated for –40°C to +125°C operation, meets AEC-Q100 Grade 1 stress testing requirements, and is manufactured in TS16949-certified facilities. Its 5ppm/°C max tempco and 20ppm/1000hr long-term stability make it suitable for engine control units, battery management systems, and radar signal conditioning modules.
What is the minimum input voltage required for MAX6126A30+T to regulate at 3.000V?
The minimum input voltage for MAX6126A30+T is 3.2V - defined as VOUT + dropout voltage (≥0.2V at 5mA). Below 3.2V, regulation degrades; at 3.2V input, the device maintains 3.000V output within ±0.02% accuracy and specified noise performance, enabling compatibility with aged or partially discharged 3.3V rails.
MAX6126A30+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±0.06%
- Temperature Coefficient:
- 5ppm/°C
- Noise - 0.1Hz to 10Hz:
- 1.75µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- 3.2V ~ 12.6V
- Current - Supply:
- 725µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-uMAX/uSOP
MAX6126A30+T FAQ
1.How can I place an order for MAX6126A30+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6126A30+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 MAX6126A30+T reliable?
The price and inventory of MAX6126A30+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6126A30+T is usually 5 days.
3.What payment methods are accepted for MAX6126A30+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6126A30+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6126A30+T?
MAX6126A30+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6126A30+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 MAX6126A30+T?
For technical support, including MAX6126A30+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6126A30+T requirements.
6.How does Aetrix verify that MAX6126A30+T is sourced from the original manufacturer or authorized distributors?
All MAX6126A30+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 MAX6126A30+T meets industry standards.
7.What is the process for return or replacement of MAX6126A30+T?
All MAX6126A30+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6126A30+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 MAX6126A30+T part is unused and in its original packaging.
Return procedure for MAX6126A30+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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