MAX6126

Ultra-High-Precision, Ultra-Low-Noise, Series Voltage Reference

Ultra-High-Precision, Ultra-Low-Noise, Series Voltage Reference Features 3ppm/°C (max) Temperature Coefficients and an Excellent ±0.02% (max) Initial Accuracy


Please check latest availability status for a specific part variant.

Description

The MAX6126 is an ultra-low-noise, high-precision, low-dropout voltage reference. This family of voltage references feature curvature-correction circuitry and high-stability, laser-trimmed, thin-film resistors that result in 3ppm/°C (max) temperature coefficients and an excellent ±0.02% (max) initial accuracy. The proprietary low-noise reference architecture produces a low flicker noise of 1.3µVP-P and wideband noise as low as 60nV/√Hz (2.048V output) without the increased supply current usually found in low-noise references. Improve wideband noise to 35nV/√Hz and AC power-supply rejection by adding a 0.1µF capacitor at the noise reduction pin. The MAX6126 series mode reference operates from a wide 2.7V to 12.6V supply voltage range and load-regulation specifications are guaranteed to be less than 0.025Ω for sink and source currents up to 10mA. These devices are available over the automotive temperature range of -40°C to +125°C.

The MAX6126 typically draws 380μA of supply current and is available in 2.048V, 2.500V, 2.800V, 3.000V, 3.300V, 3.600V, 4.096V, and 5.000V output voltages. The MAX6126 also feature dropout voltages as low as 200mV. Unlike conventional shunt-mode (two-terminal) references that waste supply current and require an external resistor, the MAX6126 offers supply current that is virtually independent of supply voltage and does not require an external resistor. The MAX6126 is stable with 0.1µF to 10µF of load capacitance.

The MAX6126 is available in the tiny 8-pin µMAX®, as well as 8-pin SO packages.
MAX6126: Typical Operating Circuit MAX6126: Typical Operating Circuit Enlarge+

Key Features

  • Ultra-Low 1.3µVP-P Noise (0.1Hz to 10Hz, 2.048V Output)
  • Ultra-Low 3ppm/°C (max) Temperature Coefficient
  • ±0.02% (max) Initial Accuracy
  • Wide (VOUT + 200mV) to 12.6V Supply Voltage Range
  • Low 200mV (max) Dropout Voltage
  • 380µA Quiescent Supply Current
  • 10mA Sink/Source-Current Capability
  • Stable with CLOAD = 0.1µF to 10µF
  • Low 20ppm/1000hr Long-Term Stability
  • 0.025Ω (max) Load Regulation
  • 20µV/V (max) Line Regulation
  • Force and Sense Outputs for Remote Sensing

Applications/Uses

  • Automated Test Equipment (ATE)
  • Digital Voltmeters
  • High-Accuracy Industrial and Process Control
  • High-Accuracy Reference Standard
  • High-Resolution A/D and D/A Converters
  • Precision Current Sources
Part NumberVOUT
(V)
Temp. Coeff.
(ppm/°C)
Initial Accuracy
(% max)
ISUPPLY
(µA)
VSUPPLY
(V)
VSUPPLY
(V)
Noise 0.1Hz to 10Hz
(µVpp)
Oper. Temp.
(°C)
Package/Pins
max@ +25°Cmaxminmaxtyp
MAX6126A-UMAX 
2.048
2.5
3
4.096
5
30.065502.712.61.35-40 to +125
SOIC(N)/8
MAX6126B-UMAX 70.1
SOIC(N)/8
MAX6126A-SOIC 30.02
SOIC(N)/8
MAX6126B-SOIC 50.06
SOIC(N)/8
See All Voltage References (170)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


MAXSANTAFEEVSYS: Evaluation Kit for the MAXREFDES5 4-Channel Analog Front End

Technical Documents

App Note 7009 Voltage Reference Long-Term Stability Reduces Industrial Process Control Calibration Costs
App Note 6262 RTD Measurement System Design Essentials
User Guide 6207 MAXREFDES46# Quickstart Guide
App Note 6206 Simple, Effective Method and Circuit to Measure Very-Low 1/f Voltage Reference Noise (< 1µVP-P, 0.1Hz to 10Hz)
App Note 6184 Using the MAX11254EVKIT as a Building Block Platform for Industrial Applications
App Note 6034 How to Select and Design Amplifier Buffer and Passive Components to Optimize Performance for the MAX11905 Evaluation Kits
User Guide 5885 MAXREFDES32# ZedBoard Quick Start Guide
User Guide 5866 MAXREFDES71# ZedBoard Quick Start Guide
User Guide 5847 Alameda (MAXREFDES24#) ZedBoard Quick Start Guide
User Guide 5846 Alameda (MAXREFDES24#) LX9 Quick Start Guide
User Guide 5828 Petaluma (MAXREFDES30#) ZedBoard Quick Start Guide
Sub-System Board 5827 Petaluma (MAXREFDES30#): 8-Channel Simultaneous-Sampling Analog Front End
App Note 5760 Getting the Most Out of the MAX14920/MAX14921 High-Accuracy Battery-Measurement AFEs
User Guide 5746 Fremont (MAXREFDES6#) ZedBoard Quick Start Guide
User Guide 5745 Fremont (MAXREFDES6#) Nexys 3 Quick Start Guide
User Guide 5744 Carmel (MAXREFDES18#) ZedBoard Quick Start Guide
User Guide 5743 Carmel (MAXREFDES18#) LX9 Quick Start Guide
Sub-System Board 5742 Carmel (MAXREFDES18#): High Accuracy Analog Current/Voltage Output
Sub-System Board 5721 Fremont (MAXREFDES6#): 16-Bit, High-Accuracy, 0 to 100mV Input, Isolated Analog Front-End (AFE)
Tutorial 5664 Managing Noise in the Signal Chain, Part 1: Annoying Semiconductor Noise, Preventable or Inescapable?
User Guide 5651 Campbell (MAXREFDES4#) ZedBoard Quick Start Guide
User Guide 5639 Santa Fe (MAXREFDES5#) ZedBoard Quick Start Guide
User Guide 5630 Fresno (MAXREFDES11#) ZedBoard Quick Start Guide
App Note 5620 Optimize Battery Measurement and Cell-Stack Monitoring with Highly Accurate AFE
User Guide 5579 Campbell (MAXREFDES4#) Nexys 3 Quick Start Guide
User Guide 5578 Santa Fe (MAXREFDES5#) Nexys 3 Quick Start Guide
Sub-System Board 5563 Fresno (MAXREFDES11#): 16-Bit High-Accuracy 0 to 10V Input Isolated Analog Front End (AFE)
Sub-System Board 5562 Campbell (MAXREFDES4#): 16-Bit High-Accuracy 4-20mA Input Isolated Analog Front End (AFE)
Sub-System Board 5561 Santa Fe (MAXREFDES5#): 16-Bit High Accuracy Multi-Input Isolated Analog Front End (AFE)
App Note 5083 Digital-to-Analog Converter Fine-Tunes Reference Output
Tutorial 4992 Reduce the Chances of Human Error: Part 1, Power and Ground
App Note 4490 How Signal Chains and PLCs Impact Our Lives
Tutorial 4300 Calculating the Error Budget in Precision Digital-to-Analog Converter (DAC) Applications
App Note 3775 Design Considerations for a Low-Cost Sensor and A/D Interface
App Note 3741 Analog ICs for Low Voltage Systems
App Note 3657 Ultra-Low-Noise LDO Achieves 6nV/√Hz Noise Performance
App Note 3635 Implementing an External Reference and the Resulting Effect on Gain for the MAX149x Sigma-Delta Panel-Meter ADCs
Tutorial 719 Understanding Voltage-Reference Topologies and Specifications

Quality and Environmental Data

Product Reliability Reports: MAX6126.pdf 
Lead-Free Package Tin (Sn) Whisker Reports

Additional Resources

GTI Customer Success Story ›


Tools & Models

  • MAX6126 Orcad Library
  • CAD Symbols and Footprints

  • MAX6126A21
  • MAX6126A21+
  • MAX6126A21+T
  • MAX6126A21/GG8
  • MAX6126A25
  • MAX6126A25+
  • MAX6126A25+T
  • MAX6126A25+T_1
  • MAX6126A28+
  • MAX6126A28+T
  • MAX6126A30
  • MAX6126A30+
  • MAX6126A30+T
  • MAX6126A33+
  • MAX6126A33+T
  • MAX6126A36+
  • MAX6126A36+T
  • MAX6126A41
  • MAX6126A41+
  • MAX6126A41+T
  • MAX6126A50
  • MAX6126A50+
  • MAX6126A50+T
  • MAX6126AA33+
  • MAX6126AASA21
  • MAX6126AASA21+
  • MAX6126AASA21+T
  • MAX6126AASA21/GG8
  • MAX6126AASA21/GH9
  • MAX6126AASA25
  • MAX6126AASA25+
  • MAX6126AASA25+T
  • MAX6126AASA25/GG8
  • MAX6126AASA25/GH9
  • MAX6126AASA30
  • MAX6126AASA30+
  • MAX6126AASA30+T
  • MAX6126AASA33+
  • MAX6126AASA33+T
  • MAX6126AASA36+
  • MAX6126AASA36+T
  • MAX6126AASA41
  • MAX6126AASA41+
  • MAX6126AASA41+T
  • MAX6126AASA50
  • MAX6126AASA50+
  • MAX6126AASA50+T
  • MAX6126B21
  • MAX6126B21+
  • MAX6126B21+T
  • MAX6126B25
  • MAX6126B25+
  • MAX6126B25+T
  • MAX6126B25+T_1
  • MAX6126B28+
  • MAX6126B30
  • MAX6126B30+
  • MAX6126B30+T
  • MAX6126B33+
  • MAX6126B33+T
  • MAX6126B36+
  • MAX6126B36+T
  • MAX6126B41
  • MAX6126B41+
  • MAX6126B41+T
  • MAX6126B41-T
  • MAX6126B50
  • MAX6126B50+
  • MAX6126B50+T
  • MAX6126B50-T
  • MAX6126BASA21
  • MAX6126BASA21+
  • MAX6126BASA21+T
  • MAX6126BASA21+T_1
  • MAX6126BASA25
  • MAX6126BASA25+
  • MAX6126BASA25+T
  • MAX6126BASA25+T_1
  • MAX6126BASA30
  • MAX6126BASA30+
  • MAX6126BASA30+T
  • MAX6126BASA30-T
  • MAX6126BASA33+
  • MAX6126BASA33+T
  • MAX6126BASA36+
  • MAX6126BASA36+T
  • MAX6126BASA41
  • MAX6126BASA41+
  • MAX6126BASA41+T
  • MAX6126BASA41+T_1
  • MAX6126BASA41/V+
  • MAX6126BASA41/V+T
  • MAX6126BASA50
  • MAX6126BASA50+
  • MAX6126BASA50+T
  • Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

    Quality Management System >
    Environmental Management System >

     
    Status:
    Package:
    Temperature:

    Related Resources


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    MAX6078A
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    • Ultra-Low 5ppm/°C (Max) Temperature Coefficient

    Type ID PDF Title
    App Note 7009 Voltage Reference Long-Term Stability Reduces Industrial Process Control Calibration Costs
    App Note 6262 RTD Measurement System Design Essentials
    User Guide 6207 MAXREFDES46# Quickstart Guide
    App Note 6206 Simple, Effective Method and Circuit to Measure Very-Low 1/f Voltage Reference Noise (< 1µVP-P, 0.1Hz to 10Hz)
    App Note 6184 Using the MAX11254EVKIT as a Building Block Platform for Industrial Applications
    App Note 6034 How to Select and Design Amplifier Buffer and Passive Components to Optimize Performance for the MAX11905 Evaluation Kits
    User Guide 5885 MAXREFDES32# ZedBoard Quick Start Guide
    User Guide 5866 MAXREFDES71# ZedBoard Quick Start Guide
    User Guide 5847 Alameda (MAXREFDES24#) ZedBoard Quick Start Guide
    User Guide 5846 Alameda (MAXREFDES24#) LX9 Quick Start Guide
    User Guide 5828 Petaluma (MAXREFDES30#) ZedBoard Quick Start Guide
    Sub-System Board 5827 Petaluma (MAXREFDES30#): 8-Channel Simultaneous-Sampling Analog Front End
    App Note 5760 Getting the Most Out of the MAX14920/MAX14921 High-Accuracy Battery-Measurement AFEs
    User Guide 5746 Fremont (MAXREFDES6#) ZedBoard Quick Start Guide
    User Guide 5745 Fremont (MAXREFDES6#) Nexys 3 Quick Start Guide
    User Guide 5744 Carmel (MAXREFDES18#) ZedBoard Quick Start Guide
    User Guide 5743 Carmel (MAXREFDES18#) LX9 Quick Start Guide
    Sub-System Board 5742 Carmel (MAXREFDES18#): High Accuracy Analog Current/Voltage Output
    Sub-System Board 5721 Fremont (MAXREFDES6#): 16-Bit, High-Accuracy, 0 to 100mV Input, Isolated Analog Front-End (AFE)
    Tutorial 5664 Managing Noise in the Signal Chain, Part 1: Annoying Semiconductor Noise, Preventable or Inescapable?
    User Guide 5651 Campbell (MAXREFDES4#) ZedBoard Quick Start Guide
    User Guide 5639 Santa Fe (MAXREFDES5#) ZedBoard Quick Start Guide
    User Guide 5630 Fresno (MAXREFDES11#) ZedBoard Quick Start Guide
    App Note 5620 Optimize Battery Measurement and Cell-Stack Monitoring with Highly Accurate AFE
    User Guide 5579 Campbell (MAXREFDES4#) Nexys 3 Quick Start Guide
    User Guide 5578 Santa Fe (MAXREFDES5#) Nexys 3 Quick Start Guide
    Sub-System Board 5563 Fresno (MAXREFDES11#): 16-Bit High-Accuracy 0 to 10V Input Isolated Analog Front End (AFE)
    Sub-System Board 5562 Campbell (MAXREFDES4#): 16-Bit High-Accuracy 4-20mA Input Isolated Analog Front End (AFE)
    Sub-System Board 5561 Santa Fe (MAXREFDES5#): 16-Bit High Accuracy Multi-Input Isolated Analog Front End (AFE)
    App Note 5083 Digital-to-Analog Converter Fine-Tunes Reference Output
    Tutorial 4992 Reduce the Chances of Human Error: Part 1, Power and Ground
    App Note 4490 How Signal Chains and PLCs Impact Our Lives
    Tutorial 4300 Calculating the Error Budget in Precision Digital-to-Analog Converter (DAC) Applications
    App Note 3775 Design Considerations for a Low-Cost Sensor and A/D Interface
    App Note 3741 Analog ICs for Low Voltage Systems
    App Note 3657 Ultra-Low-Noise LDO Achieves 6nV/√Hz Noise Performance
    App Note 3635 Implementing an External Reference and the Resulting Effect on Gain for the MAX149x Sigma-Delta Panel-Meter ADCs
    Tutorial 719 Understanding Voltage-Reference Topologies and Specifications
    Type ID Title
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    System Board5985MAXREFDES75#: 24-Bit Weigh Scale with a 16-Bit DAC, 0 to 10V Output
    System Board5979MAXREFDES38#: ECT/EPT Current Fault Sensor
    System Board5952MAXREFDES60#: 16-Bit Analog Output Micro PLC
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    System Board5883MAXREFDES32#: 2-Channel Analog Input/Analog Output with Flyback DC-DC
    System Board5865MAXREFDES71#: 2-Channel Analog Input/Analog Output with Transformer Driven Power
    System Board5839Alameda (MAXREFDES24#): 4-Channel Analog Output
    System Board5827Petaluma (MAXREFDES30#): 8-Channel Simultaneous-Sampling Analog Front End
    System Board5742Carmel (MAXREFDES18#): High Accuracy Analog Current/Voltage Output
    System Board5721Fremont (MAXREFDES6#): 16-Bit, High-Accuracy, 0 to 100mV Input, Isolated Analog Front-End (AFE)
    System Board5563Fresno (MAXREFDES11#): 16-Bit High-Accuracy 0 to 10V Input Isolated Analog Front End (AFE)
    System Board5562Campbell (MAXREFDES4#): 16-Bit High-Accuracy 4-20mA Input Isolated Analog Front End (AFE)
    System Board5561Santa Fe (MAXREFDES5#): 16-Bit High Accuracy Multi-Input Isolated Analog Front End (AFE)
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