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Low-Noise, Precision, +2.5V/+4.096V/+5V Voltage References

Product Details

Key Features

Parametric specs for Voltage References
VOUT (V) 4.096
Temp. Coeff. (ppm/°C) (max) 2
ISUPPLY (µA) (max) 3200
Initial Accuracy (% max) (@ +25°C) 0.02
Calibration Method Trim
VSUPPLY (V) (min) 8
VSUPPLY (V) (max) 36
Noise 0.1Hz to 10Hz (µVpp) (typ) 2.4
Oper. Temp. (°C) -55 to +125
-40 to +85
0 to +70
Package/Pins See Data Sheet
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Simplified Block Diagram

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Parameters

Parametric specs for Voltage References
VOUT (V) 4.096
Temp. Coeff. (ppm/°C) (max) 2
ISUPPLY (µA) (max) 3200
Initial Accuracy (% max) (@ +25°C) 0.02
Calibration Method Trim
VSUPPLY (V) (min) 8
VSUPPLY (V) (max) 36
Noise 0.1Hz to 10Hz (µVpp) (typ) 2.4
Oper. Temp. (°C) -55 to +125
-40 to +85
0 to +70
Package/Pins See Data Sheet

Key Features

  • Low 1.0ppm/°C Temperature Coefficient
  • Very Low 1.5µVp-p Noise (0.1Hz to 10Hz)
  • ±0.02% Initial Accuracy
  • ±15mA Output Source and Sink Current
  • Low, 18mW Power Consumption (MAX6225)
  • Industry-Standard Pinout
  • Optional Noise Reduction and Voltage Trim
  • Excellent Transient Response
  • 8-Pin SO Package Available
  • Low 20ppm/1000h Long-Term Stability
  • Stable for All Capacitive Loads

Applications/Uses

  • A/D Converters
  • Automated Test Equipment (ATE)
  • Digital Voltmeters
  • High-Accuracy Industrial and Process Control
  • High-Accuracy Reference Standard
  • High-Resolution Analog-to-Digital
  • Precision Current Sources

Description

The MAX6225/MAX6241/MAX6250 are low-noise, precision voltage references with extremely low 1ppm/°C temperature coefficients and excellent ±0.02% initial accuracy. These devices feature buried-zener technology for lowest noise performance. Load-regulation specifications are guaranteed for source and sink currents up to 15mA. Excellent line and load regulation and low output impedance at high frequency make them ideal for high-resolution data-conversion systems up to 16 bits.

The MAX6225 is set for 2.500V output, the MAX6241 is set for 4.096V output, and the MAX6250 is set for 5.000V output. All three devices provide for the option of external trimming and noise reduction.

Simplified Block Diagram

MAX6225, MAX6241, MAX6250: Typical Operating Circuit MAX6225, MAX6241, MAX6250: Typical Operating Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .