MAX6072B:High-Precision, Dual-Output Series Voltage Reference

Dual-Voltage Reference Allows ADC and Input Common Mode to Track Each Other

The MAX6072 is a dual-output precision series voltage reference. The product features two outputs, +VREF and +VREF/2. The device exhibits a very low 1/f noise of 2ppm (peak-to-peak). Each output can source and sink 10mA and has an independent sense line. This product has a temperature drift of 6ppm/°C (max) over the ambient temperature range of -40°C to +125°C and an initial accuracy of 0.04%. Three pairs of output voltages are available: 5V/2.5V, 4.096V/2.048V, and 2.5V/1.25V. The product operates with an input voltage range of 2.8V to 5.5V and has sufficient headroom for the highest voltage. It consumes a mere 150µA (typ) of quiescent supply current per reference. The dual voltage outputs make this device ideal for precision ADC applications where the input signal needs to be referred to VREF/2. The MAX6072 is available in a 10-pin μMAX® package and is specified for operation over the extended −40°C to +125°C industrial temperature range.

Key Features
  • Low Temperature Coefficient Ensures Stable System Over Wide Temperature Ranges
    • A-grade: 6ppm/°C (max)
    • B-grade: 8ppm/°C (max)
  • Excellent Long-Term Drift Ensures Accurate Signal Chain Readings Over Time
    • 15ppm Drift Over 1,000 Hours
  • Dual References (VREF and VREF/2) Provide ADC/DAC Reference and Common-Mode Reference
    • MAX6072__50: VREF = 5V, VREF/2 = 2.5V
    • MAX6072__41: VREF = 4.096V, VREF/2 = 2.048V
    • MAX6072__25: VREF = 2.5V, VREF/2 = 1.25V
  • Low Thermal Hysteresis Ensures Consistent Results Through Temperature Cycles
    • 85ppm
    • 2.5ppm Thermal Hysteresis Tracking
  • Separate Enable-Control for Each Output Allows Independent Control
  • Low Power for Battery-/Loop-Powered Sensors: 150µA/Reference
MAX6072: Functional Diagram
MAX6072: Functional Diagram
Applications/Uses
  • ADC/DAC References and Common-ModeSet-Point
  • High-Accuracy Industrial and Process Control
  • Portable Medical
  • Test and Measurement/ATE
DataSheet
titleDownload file
MAX6072 Data SheetMAX6072.pdf
Parametrics
Part NumberVOUT
(V)
Temp. Coeff.
(ppm/°C)
Initial Accuracy
(% max)
ISUPPLY
(µA)
VSUPPLY
(V)
Noise 0.1Hz to 10Hz
(µVpp)
Oper. Temp.
(°C)
Package/PinsBudgetary
Price
max@ +25°CmaxmaxtypSee Notes
MAX6072A1.25
2.048
2.5
4.096
5
60.046305.53.6-40 to +125uMAX HYBRID/10$1.85 @1k
MAX6072B80.08uMAX HYBRID/10$1.65 @1k
Related Products
  • MAX6070:Low-Noise, High-Precision Series Voltage References
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX6072BAUB25+ActiveuMAX HYBRID,;10 pin;UMAX H;-40°C to +125°CSee data sheet
MAX6072BAUB25+TActiveuMAX HYBRID,;10 pin;UMAX H;-40°C to +125°CSee data sheet
MAX6072BAUB41+ActiveuMAX HYBRID,;10 pin;UMAX H;-40°C to +125°CSee data sheet
MAX6072BAUB41+TActiveuMAX HYBRID,;10 pin;UMAX H;-40°C to +125°CSee data sheet
MAX6072BAUB50+ActiveuMAX HYBRID,;10 pin;UMAX H;-40°C to +125°CSee data sheet
MAX6072BAUB50+TActiveuMAX HYBRID,;10 pin;UMAX H;-40°C to +125°CSee data sheet
MAX6072.pdf MAX6072B
MAX6072.pdf MAX6072B